topic: Tropics

topic: Tropics

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We’re losing species faster than we can find them, study shows
- Researchers compiled a database showing the number of lost species is increasing faster than rediscovered species: since 1800, more than 800 amphibian, bird, mammal and reptile species have not seen by scientists in at least a decade.
- Reptiles as well as small, nocturnal or underground species tend to stay lost longer than larger, more widespread mammals and birds.
- Once found, many lost species remain threatened with extinction as their populations are often small and fragmented due to habitat loss.
- New technologies like camera traps and environmental DNA are aiding rediscovery efforts, but the involvement of local communities is also key to finding lost species.

New tool aims to help palm oil firms comply with deforestation regulations
- A new online tool launched by web-based monitoring platform Palmoil.io aims to help companies check their compliance with deforestation regulations for palm oil.
- PlotCheck enables companies to upload plot boundaries without having to store it in the cloud, thereby working around concerns on data security and privacy.
- The tool analyzes the plot for deforestation based on publicly available satellite data; it also displays data on historical deforestation in the plot as well as palm oil processing mills in the proximity.
- “The output is going to be a statement which companies can submit to authorities to prove that their shipment is deforestation-free,” said Leo Bottrill, founder of Palmoil.io.

2023’s top ocean news stories (commentary)
- Marine scientists from six international research and conservation institutions share their list of the top ocean news stories from 2023.
- Hopeful developments this past year include a monumental global treaty to protect biodiversity on the high seas and the regulation of international trade in 97 species of sharks and rays under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
- At the same time, 2023 was the hottest year on record, with widespread bleaching of corals in the Caribbean and Great Barrier Reef, and many more hot years forecast as humanity’s emissions of greenhouse gases that cause global warming continue.
- This post is a commentary. The views expressed are those of the authors, not necessarily Mongabay.

Tropical deforestation increases even as a few hotspots see respite, new data shows
- Emissions from deforestation in tropical forests rose by 5% in 2022, even as temperate forests strengthened their role as carbon sinks, according to data from a carbon mapping tool developed by nonprofit CTrees.
- According to the data, emissions from deforestation saw a dip in Indonesia and the Congo Basin in 2022; in Brazil, however, emissions continued to rise through 2022, and only started dropping this year.
- The JMRV platform uses satellite imagery and machine learning to map forests and non-forest lands around the world to monitor forest cover, carbon stocks and emissions.
- In addition to broader global data, the tool can also help local jurisdictions monitor and verify their carbon stocks to keep track of their emissions-reduction progress under the Paris climate agreement.

Community tropical forest management linked to social & environmental benefits: Study
- A study shows that forests in 15 tropical countries across Africa, Asia and Latin America managed by Indigenous peoples and local communities are associated with improved outcomes for carbon storage, biodiversity and forest livelihoods.
- The study finds that the positive outcomes were most likely observed when formal management institutions were in place and Indigenous and local communities had influence in defining their rights and roles in forest use and management.
- The findings suggest that governance reforms, like supporting Indigenous and local community rights or roles to manage forests, can play a role in supporting both human and environmental goals in tropical forested landscapes.
- However, giving local people formal rights is just a starting point, the lead author says; other procedures and support need to be in place to determine whether people actually get those rights and if they are able to use them to good effect.

Forest restoration to boost biomass doesn’t have to sacrifice tree diversity
- Restoring degraded forests to boost biodiversity, store carbon and reconnect fragmented habitats is a burgeoning area of tropical forest conservation.
- But uncertainty remains around the long-term impacts of various restoration approaches on forest biodiversity and functioning, with experts suggesting, for instance, that overly focusing on biomass accumulation for climate mitigation can come at the expense of species diversity.
- A new study in Malaysian Borneo has found that actively restoring logged forest plots with a diversity of native timber species, coupled with management of competitive vegetation, actually boosted adult tree diversity after nearly two decades compared to plots left to regenerate naturally.
- While the results add to a growing body of evidence that active restoration can lead to biodiversity gains, the authors caution that restoration approaches must be conducted in ecologically sensitive ways to avoid unintended outcomes.

Mongabay CEO discusses slowdown in Amazon loss and other positive news
- It’s been an eventful couple of months for the Amazon Rainforest and for the Mongabay newsroom.
- Brazil’s National Institute for Space Research (INPE) recently shared data showing a 22% decline in deforestation for the year ending July 31, 2023.
- In other exciting news, Mongabay was awarded the prestigious 2023 Biophilia Award for Environmental Communication recently. Past winners have included Pulitzer-winning journalist Elizabeth Kolbert and The Guardian.
- Mongabay has also just launched an entirely new bilingual bureau in Africa. Here to discuss all these developments on this episode of the Mongabay Newscast is CEO and editor-in-chief Rhett Butler.

New study pushes for protection of one of Africa’s ‘least understood treasures’
- A new study reveals the extent of a tropical water tower in Angola, which performs the same role as snow-capped mountains in the Northern Hemisphere.
- The Angolan Highlands Water Tower contains peatlands and freshwater lakes that supply major rivers in the region, and the wildlife-rich Okavango Delta in Botswana.
- Despite this vital hydrological role, the water tower currently has no formal protection.
- The team behind the study hopes it will help to strengthen the case for recognition of a vast portion of the water tower as a Ramsar Site of International Importance.

Mongabay wins prestigious 2023 Biophilia Award for Environmental Communication
- The Biophilia Award for Environmental Communication is a prestigious award granted to professionals and organizations working to improve public understanding of ecological issues.
- The fifth annual Biophilia Award for Environmental Communication has been awarded to Mongabay for its commitment to reporting on issues related to nature and biodiversity, particularly in countries in the Global South.
- Past recipients have included The Guardian, as well as journalists Elizabeth Kolbert, Marlowe Hood, and Matt McGrath.
- Renowned conservation scientist Jane Goodall, who serves on Mongabay’s advisory board, said Mongabay “not only highlights the problems in the world, but also discusses solutions from the ground up” and that it “tells inspiring stories of people fighting and risking their lives as they strive to save wildlife and the environment.”

Restoring degraded forests may be key for climate, study says
- Scientists have found that focusing on restoring degraded forests, which cover more than 1.5 billion hectares (3.7 billion acres) globally, can enhance forest carbon stocks more efficiently than replanting in deforested areas, with natural regrowth being a cost-effective method.
- In Central America’s “Five Great Forests,” there’s a goal to restore 500,000 hectares (1.2 million acres) by 2030. The study identified 9.8 million hectares (24.2 billion acres) as top restoration priorities, with 91% being degraded forests.
- Restoring just 5% of these priority zones was calculated to potentially sequester 113 million tons of CO2, equivalent to taking more than 20 million cars off the road for a year.
- The research emphasizes the importance of involving local communities in restoration planning and suggests that current forest management practices, like those in the timber industry, need to adapt for more sustainable outcomes.

Forest restoration can fare better with human helping hand, study shows
- A two-decade-old experiment in the tropical rainforest of Sabah, Malaysian Borneo, is beginning to reveal that human-assisted restoration of logged forests can increase the speed of an ecosystem’s recovery.
- The researchers also found that planting a diverse suite of seedlings, instead of only one species, led in just one decade to greater biomass and forest complexity.
- The study provides more weight to the argument that greater forest species diversity in general — and specifically for restorations — delivers more ecosystem services, possibly including carbon sequestration.
- However, there is the possibility that the particular life cycle of the type of trees used in this study — hardwood tropical species from the Dipterocarpaceae family, chiefly found in Southeast Asia — could have especially enhanced diversity in this case.

From rat-ridden to reserve, Redonda is an island restoration role model
- In 2016, conservationists began restoring the island of Redonda, part of Antigua and Barbuda in the Caribbean, by removing invasive rats and goats.
- Shortly after removing these invasive species, vegetation on the island sprang back to life, and seabirds and other wildlife recolonized the island.
- In September 2023, the government of Antigua and Barbuda announced it had established the Redonda Ecosystem Reserve, covering nearly 30,000 hectares (74,000 acres) of land and sea.
- Experts say they hope Redonda’s restoration and successive protection will be used as a model for similar projects across the Caribbean.

PFAS ‘forever chemicals’ harming wildlife the world over: Study
- While the health impacts of toxic per- and polyfluoroalkyl chemicals, or PFAS, are well known in humans, a new study reports how they affect a wide range of wildlife species.
- In this survey of published studies, the authors found and mapped wildlife exposures worldwide, including impacts on animal species in remote parts of the planet, including the Arctic.
- Researchers documented serious PFAS-triggered conditions in wildlife, including suppressed immunity, liver damage, developmental and reproductive issues, nervous and endocrine system impacts, gut microbiome/bowel disease and more. PFAS pose yet another threat to already beleaguered global wildlife.
- National governments have done little to restrict use of PFAS or remediate pollution, despite growing evidence of increased harm to both humans and wildlife. The study authors call for immediate action to remediate PFAS-contamination sites and regulate industrial chemicals to help protect threatened and endangered species.

Muddied tropical rivers reveal magnitude of global gold mining boom: Study
- A new study reveals that 59,000 kilometers, or nearly 37,000 miles, of tropical rivers have been damaged by mining, based on 7 million measurements taken from satellite images spanning four decades.
- The new study reveals a runaway river mining boom starting in the mid-2000s, largely caused by a tremendous spike in gold prices since the 2007-2008 financial crisis. Since then, the price of gold — an element which accounts for 90% of river mining in the tropics — has only gone up.
- An estimated 5-7% of the world’s large tropical rivers are considered severely affected by sediment from river-mining activities, with 173 large rivers impacted in the global tropics.
- Up to a third of global freshwater fish species are found in tropical rivers. Mining, much of it illegal or informal, seriously impacts both human and natural communities in numerous ways. Sediment traps aquatic life in dense, cloudy, muddied water, with sunlight unable to reach plants and fish.

What drives and halts tropical deforestation? Analyzing 24 years of data
- Researchers conducted a meta-analysis of 320 studies covering a period of 24 years, to identify the key drivers of tropical deforestation.
- Deforestation is driven largely by agriculture and cattle ranching, building roads, expanding cities into forests, and population growth.
- Factors halting deforestation include steeper, less accessible terrain, stronger protections for parks and reserves, Indigenous land management, commodity certification programs, and payments for ecosystem services.
- Researchers say they hope the study can be “a resource to guide policies and management toward actions that help reverse deforestation.”

‘What we need to protect and why’: 20-year Amazon research hints at fate of tropics
- In its bold outlines, many informed people understand that climate change is reducing tropical biodiversity and thereby degrading the functionality and ecoservices of tropical forests. But what are the specific mechanisms by which these forests are being diminished over long time frames?
- One project on the slopes of the Peruvian Amazon has tried to make exactly that type of assessment, via a 20-year ongoing research project that meticulously observes a narrow transect of rainforest stretching from the Amazon lowlands near sea level to the Andean highlands above 3,352 meters (11,000 feet).
- The international team conducting this work, the Andes Biodiversity and Ecosystem Research Group (ABERG), is painstakingly observing changes in more than 1,000 tree species, birds, frogs, snakes and more to determine not only how much climate change is affecting them, but untangling how the change process works.
- This type of in-depth research is vital to conserving tropical rainforest diversity, the carbon storage capacity it offers, and its assistance in maintaining long-persisting regional and global precipitation patterns vital to agriculture and other water needs. Mongabay contributor Justin Catanoso traveled to Peru to observe ABERG at work.

Drought cycles erode tropics’ ability to absorb CO₂, study finds
- A recent study finds that tropical carbon sinks have become increasingly vulnerable to water scarcity since 1960, and are consequently less able to absorb carbon dioxide.
- These findings suggest that tropical ecosystems are less resilient to climate change than previously thought.
- While the study doesn’t necessarily make projections for the future, the findings suggest that an acceleration of climate change, which is very likely to bring more drought, could further limit the ability of tropical ecosystems to absorb carbon dioxide, which, in turn, would worsen climate change.

S. Africa to purge bird-eating mice from key albatross breeding island
- Non-native house mice arrived on Marion Island in the southern Indian Ocean two centuries ago, when the island was a stopping-off point for sealing ships.
- Their population has exploded recently, as temperatures warm and summers lengthen. With more mouths to feed, they’ve gutted their main food source — insects — and are now feeding on seabird chicks and adults.
- While mouse attacks on seabirds remain low and their impact on nesting or breeding success isn’t known yet, conservationists nevertheless see them as a serious and growing threat.
- Now the South African government is planning a rodent eradication program for mid-2025 that will be the largest of its kind on a sub-Antarctic island.

Red floods near giant Indonesia nickel mine blight farms and fishing grounds
- Farming communities in the shadow of Sulawesi’s giant Pomalaa nickel mining area say their fields have been flooded with red water, possibly laterite waste from the mining operations.
- Local farmers blame flooding from the mine for longer harvest cycles and reduced productivity.
- Indonesia’s biggest environmental NGO says the government should review mining permits to safeguard rice fields.

Can community payments with no strings attached benefit biodiversity?
- A recent study published in the journal Nature Sustainability examines the idea of a “conservation basic income” paid to community members living in or near key areas for biodiversity protection.
- The authors argue that unconditional payments could help reduce families’ reliance on practices that could threaten biodiversity by providing financial stability and helping them weather unexpected expenses.
- But the evidence for the effectiveness of these kinds of cash transfers is scant and reveals that they don’t always result in outcomes that are positive for conservation.

Global study of 71,000 animal species finds 48% are declining
- A new study evaluating the conservation status of 71,000 animal species has shown a huge disparity between “winners” and “losers.” Globally, 48% of species are decreasing, 49% remain stable, and just 3% are rising. Most losses are concentrated in the tropics.
- Extinctions skyrocketed worldwide with the onset of the Industrial Revolution, especially since World War II, when resource extraction and consumption rates soared, and the planet saw exponential growth in human population to 8 billion by 2022.
- Habitat destruction, especially in the tropics, is the major driver. But a confluence of human activities, ranging from climate change, to wildlife trafficking, hunting, invasive species, pollution and other causes, are combining to drive animal declines.
- The research also revealed that one-third of non-endangered species are in decline. These data, say the researchers, could provide an early warning for preemptive conservation action by spotlighting species slipping downhill, but where there’s still time to act — and prevent extinction.

Protected areas store a year’s worth of CO₂ emissions, study reveals
- Researchers analyzed never-before-used satellite data to calculate how much carbon is stored in protected areas worldwide.
- The Amazon Rainforest’s protected areas accounted for the highest rate of carbon stock, according to the unprecedented study.
- The results can help policymakers and conservationists assess areas for protection to fight climate change — and not just forests.

Deforestation linked to less rainfall, study shows; El Niño could make it worse
- A new study shows concerning links between deforestation and reduced precipitation in tropical regions, which can in turn lead to reduced agricultural yields and food security issues.
- Now, researchers are concerned about the potential for another El Niño, which typically brings hotter, drier conditions to tropical regions, particularly in Southeast Asia, and can compound the effects of deforestation and reduced rainfall.
- The 2015-16 El Niño triggered crop losses, disease outbreaks, malnutrition and food insecurity, livestock deaths and other hardships that affected 60 million people globally; researchers say these trends signal the need for greater climate resilience in local communities.

Book: A perfect storm in the Amazon
- Mongabay has begun publishing a new edition of the book, “A Perfect Storm in the Amazon,” in short installments and in three languages: Spanish, English and Portuguese.
- Author Timothy J. Killeen is an academic and expert who, since the 1980s, has studied the rainforests of Brazil and Bolivia, where he lived for more than 35 years.
- Chronicling the efforts of nine Amazonian countries to curb deforestation, this edition provides an overview of the topics most relevant to the conservation of the region’s biodiversity, ecosystem services and Indigenous cultures, as well as a description of the conventional and sustainable development models that are vying for space within the regional economy.
- Click the “Perfect Storm in the Amazon” link atop this page to see chapters 1-13 as they are published during 2023.

Study: Women, youths can be more effective at driving sustainable farming changes
- A study in a farming community on Indonesia’s Sulawesi Island shows that women and younger farmers can be more influential than older men in persuading peers to adopt new technologies and practices.
- The findings could have significant implications for conservation organizations trying to implement sustainable agriculture programs within communities.
- The study looked at two groups — one made up of older men perceived as “opinion leaders,” and the other of mostly women and younger men — and how effective they were at convincing fellow farmers to try out a new pair of cacao pruning scissors.
- Experts say the findings don’t mean older men no longer carry any weight when it comes to influencing community members, and that they should still be consulted and engaged with when introducing development initiatives.

Tropical forest regeneration offsets 26% of carbon emissions from deforestation
- A new study published in the journal Nature analyzed satellite images from three major regions of tropical forest on Earth — Amazon, Central Africa and Borneo — and showed recovering forests offset just 26% of carbon emissions from new tropical deforestation and forest degradation in the past three decades.
- Secondary forests have a good potential to absorb carbon dioxide from the atmosphere and could be an ally in addressing the climate crisis, but emissions generated from deforestation and forests lost or damaged due to human activity currently far outpace regrowth.
- The study provides information to guide debates and decisions around the recovery of secondary forests and degraded areas of the Brazilian Amazon — around 17% of the ecosystem is in various stages of degradation and another 17% is already deforested.
- Since Brazil’s new President Luiz Inácio Lula da Silva took office, projects to curb deforestation are in place, but plans to protect recovering areas remain unclear.

Lost bird found: Dusky tetraka seen in Madagascar after 24-year absence
- The dusky tetraka, a small yellow songbird that had eluded ornithologists for 24 years, has been found again in the tropical forests of northeastern Madagascar.
- The bird was found at a lower elevation than expected, in thick underbrush near a river. The team plans to search for the dusky tetraka again during the breeding season to learn more about its ecology and biology.
- The dusky tetraka is listed as one of the top 10 most-wanted lost birds, an initiative that aims to locate bird species that have not been seen and recorded for a minimum of 10 years.
- More than 90% of the species found in Madagascar are endemic, with the island yielding at least 150 new-to-science species in the last 30 years.

Carbon uptake in tropical forests withers in drier future: Study
- A new study incorporating satellite data on organic material, or biomass, in tropical forests with experimental data about the effects of temperature and precipitation suggests that forests may lose substantial amounts of carbon by the end of the 21st century.
- Even with low continued carbon emissions, tropical forests, especially those in the southern Amazon, could lose between 6.8 and 12% of their aboveground carbon. With higher emissions, they could lose 13.3 to 20.1% of their carbon stores.
- The results highlight the need to reduce global temperatures rapidly to maintain the healthy forests best able to sequester carbon from the atmosphere.
- The team reported their findings Feb. 6 in the journal Nature Climate Change.

Kew Gardens joins local partners to save tropical plants from extinction
- The U.K.’s Kew Gardens does far more than preserve and display 50,000 living and 7 million preserved specimens of the world’s plants; it also educates the public about the importance of plant conservation via its famous London facility.
- In 2022, Kew Gardens identified 90 plants and 24 fungi completely new to science. They include the world’s largest giant water lily, with leaves more than 3 meters across, from Bolivia; and a 15-meter tree from Central America, named after the murdered Honduran environmental activist Berta Cáceres.
- The institution is working actively with local partners in many parts of the world, and especially in the tropics, to save these species in-situ, that is, where they were found. When Kew can’t do this, it saves seeds in its herbarium, carrying out ex-situ conservation.
- Kew researchers, along with scientists from tropical nations, are also working together to ensure that local communities benefit from this conservation work. The intention is to save these threatened plants for the long term, helping slow the pace of Earth’s current extinction crisis — the only one caused by humans.

Updated guide gives practical advice for buyers of tropical forest carbon credits
- An updated guide written by eight conservation and Indigenous organizations offers a detailed path forward for companies that want to compensate for their carbon emissions in addition to decarbonizing their supply chains.
- Though the carbon market faces criticism over the true value it brings to climate change mitigation, proponents say it can complement earnest efforts to decarbonize supply chains if used properly.
- The updated Tropical Forest Credit Integrity guide calls for due diligence on the part of companies to ensure the credits they purchase will result in climate gains.
- The authors of the guide also stress the importance of including Indigenous peoples and local communities in decisions about offset efforts.

Restore linked habitat to protect tropical amphibians from disease: Study
- Amphibians across the tropics are facing a global decline, with disease caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd) playing an especially significant role in losses.
- According to recent research, “habitat split” — when different types of habitat, such as terrestrial and freshwater areas, become separated — could play a role in exacerbating disease, potentially altering species’ microbiomes and weakening amphibian resistance.
- According to the study, an amphibian’s journey through altered habitat to complete its life cycle can change the composition of its microbiome (the bacterial makeup of the skin); induce chronic stress; and reduce immune gene diversity — all of which can impact disease resistance.
- Though further studies are needed, this research may offer another persuasive reason to actively restore and reconnect habitats, helping to “prime” amphibian immune systems against disease. There is also a possibility that habitat split findings among amphibians could extend to other families of animals.

Changing circumstances turn ‘sustainable communities’ into deforestation drivers: Study
- Subsistence communities can drive forest loss to meet their basic needs when external pressures, poverty and demand for natural resources increase, says a new study unveiling triggers that turn livelihoods from sustainable into deforestation drivers.
- The impact of subsistence communities on forest loss has not been quantified to its true extent, but their impact is still minimal compared to that of industry, researchers say.
- Deforestation tends to occur through shifts in agriculture practices to meet market demands and intensified wood collecting for charcoal to meet increasing energy needs.
- About 90% of people globally living in extreme poverty, often subsistence communities, rely on forests for at least part of their livelihoods—making them the first ones impacted by forest loss.

Extreme heat takes a toll on tropical countries’ economies
- Extreme heat costs tropical countries more than 5% of their annual per capita GDP, new research shows, while more prosperous mid-latitude countries lose only about a 1% of GDP due to heat waves, which can even bolster economic growth in some instances.
- Poorer tropical countries suffer the worst effects of heat waves despite being least culpable and least economically capable of adapting.
- The effects of extreme heat and drought can hit hard in local communities, such as among Kenyan families who rely on cattle they can no longer feed.

Up to half of tropical forestland cleared for agriculture isn’t put to use, research shows
- Agriculture is the primary driver of tropical deforestation, accounting for 90% or more of forest loss, yet researchers have found that up to half of total land cleared is not put into active agricultural production.
- The gap between what’s cleared and what’s used for agriculture shows that “we have to fix agriculture and we have to fix deforestation,” according to one of the researchers.
- Tropical deforestation is a major contributor to global greenhouse gas emissions and climate change, but the research shows there is no simple fix, as humanity’s increasing food needs coincide with the need for conservation.

Sulawesi hydropower dam could flood important archaeological sites
- A Jakarta-based hydropower company aims to dam the Karama River in western Sulawesi as part of a clean energy project to help wean the country off of coal.
- An inundation map shows that the dam could raise the river’s water level to 62 meters (203 feet) above sea level, potentially damaging important archaeological sites in the Karama valley.
- In 2020, archaeologists announced they had found Indonesia’s oldest-known rice strain in the Karama valley, an important region in the Austronesian expansion, thought to be one of the most expansive prehistoric human migrations.

Climate change is hammering insects — in the tropics and everywhere else: Scientists
- A new review paper finds that climate change is pounding insects in a wide variety of ways all over the world.
- Because insects are so sensitive to temperature change, climate change is impacting them directly, including potentially decreasing their ability to breed.
- But climate change is also causing insects to change their behavior as it shifts seasonal beginnings and ends, risking that insects will act out of sync with the rest of the environment on which they depend. Climate change-intensified drought, extreme precipitation, lengthening heat waves, and fires are also harming insects.
- The best way to protect insects? Combat climate change and safeguard micro-habitats.

Rat killers in paradise: An eradication program remakes a tropical atoll
- Like many islands around the world, Tetiaroa Atoll in French Polynesia has been overrun by rats and other invasive species that profoundly affect its terrestrial and marine ecosystems.
- In July, the paradisiacal 12-island atoll was declared rat-free after years of concerted efforts to wipe out the predators.
- Scientists have been studying the atoll’s plants, seabirds, insects, lizards, crabs, coral and algae, establishing a uniquely comprehensive ecological baseline to better understand how the rat eradication will affect the atoll — and others like it.

More than half of palm species may be threatened with extinction, study finds
- Using novel machine-learning techniques, researchers found that of the 1,889 species of palms with enough data to investigate, more than half (56%) may be threatened with extinction.
- Researchers hope that the use of artificial intelligence and machine learning, paired with data from the IUCN Red List of Threatened Species, can speed up preliminary evaluations of a species’ conservation status, reduce costs, and avoid bias toward vertebrate animals.
- The study found that nearly half of the functionally distinct species were threatened, as well as nearly one-third of species used by humans (at least 185 palm species). The study also identified high-priority regions for palm conservation including Borneo, Hawai‘i, Jamaica, Madagascar, New Caledonia, New Guinea, the Philippines, Sulawesi, Vanuatu, and Vietnam.
- Like many other threatened plant and animal species, the greatest risk to palms is habitat destruction from agricultural and urban expansion.

Meet the Millennium Forest: A unique tropical island reforestation project
- A two-decade reforestation project on the tropical island of St. Helena in the southern Atlantic Ocean has not only restored trees found nowhere else in the world, but has also involved nearly every member of the island community in the effort.
- The Millennium Forest, as it’s called, has struggled with invasive species and irregular funding, but has still managed to thrive, adding new plant species — several of them threatened and two thought to have gone extinct. The growing forest is attracting animal species to its habitat, including St. Helena’s only endemic bird.
- Ocean islands pose special challenges for forest restoration, since many plant species evolved in isolation on remote islands, and saw drastic population crashes to the point of extinction, or near-extinction, when people and invasive species arrived.
- As a result, island reforestations typically can’t match original forest composition, but must mix both native and non-native species. The Millennium Forest project has now become a legacy that the current generation is handing down to upcoming ones, according to project founder Rebecca Cairns-Wicks.

Fires in the world’s largest wetland turns Brazilian farmers into firefighters
- Fires in 2020 ravaged an area larger than Belgium in the Brazilian Pantanal, the world’s largest tropical wetland, killing at least 17 million animals and leaving locals without water.
- Several initiatives by local nonprofits are taking on the challenge of protecting this unique region by educating residents about fire hazards and training Pantanal cattle ranchers as volunteer firefighters.
- Most of the 2020 fires in the Pantanal started on private farms, according to a study, underscoring the importance of training farmers to suppress flames before they surge into wildfires.
- Experts say fire alerts in the Pantanal are down by 91% so far this year compared to the same period in 2020, thanks to increased efforts by the state government and volunteer programs, as well as wetter weather.

Industrial mining’s tropical deforestation footprint spills beyond concessions
- Indonesia, Brazil, Suriname and Ghana account for 80% of all tropical deforestation linked directly to industrial mining, a new study has found.
- In two out of three tropical countries, large-scale mineral extraction leads to forest loss when effects over a wider area, beyond formal mining concessions, are considered.
- “We have to look beyond the mine fence,” Stefan Giljum, the lead author of the paper, said. “What is needed is a forest conservation plan for a whole region integrating all the activities that are going on.”
- It’s difficult to quantify forest destruction linked to the mining sector as a whole because both the indirect effects on surrounding areas and the impacts of artisanal mining are hard to pin down.

Study tracks global forest decline and expansion over six decades
- Globally, there was a net loss of 817,000 square kilometers (315,000 square miles) in forest area between 1960 and 2019, according to a new study. That’s nearly 10% more than the size of Borneo, the world’s third-largest island.
- The study showed that most forest loss occurred in “lower-income” countries as their economies grew, which are found primarily in the tropics. Forests in wealthier countries tended to expand.
- The authors say their findings confirm the forest transition theory, which links countries’ economic development to changes in land use.
- International organizations like the U.N. and rich countries should provide support to less-industrialized, forested countries to allow them to find economically beneficial alternatives to deforestation, the study authors say.

Authorities and Yobin communities clash as deforestation spikes in Indian national park
- Namdapha National Park is India’s third-largest national park and is home to thousands of species, including tigers, clouded leopards and an endemic species of flying squirrel that has only been observed once by scientists.
- Satellite data show deforestation has increased in the park over the last two decades.
- Members of an Indigenous group called the Yobin have been living in portions of the park for generations, but park authorities consider Yobin settlements to be “encroachments” and the main driver of deforestation and poaching in Namdapha National Park
- In the last few months, authorities have destroyed at least eight Yobin settlements inside the park.

Building a farmer-friendly future: Q&A with CROWDE’s Yohanes Sugihtonugroho
- Yohanes Sugihtonugroho founded the digital platform CROWDE in 2018 as a way to connect farmers in Indonesia with investors.
- Agriculture plays a major role in Indonesia’s economy, but farmers remain among the least empowered groups in society, Yohanes says, subjected to unfair trading practices by a system controlled by predatory middlemen.
- CROWDE provides farmers, especially younger ones, with access to capital, financial advice, and education in harvesting, pest control and market access.
- CROWDE says it has distributed more than $3.5 million to more than 20,000 farmers, ranchers and fishers across the country, helping boost their income by as much as 150%.

To win island-wide conservation, Indonesia’s Talaud bear cuscus needs to win hearts
- The Talaud bear cuscus is a secretive species believed to inhabit only four islands in Indonesia.
- Listed as critically endangered, the animal has been driven to the brink of extinction by overhunting and habitat loss.
- Conservationists are working with local youths, traditional and religious leaders, and community members on Salibabu Island to change the perception of the species.

Consumer countries mull best approach to end deforestation abroad
- Major global consumers like the U.K., the U.S. and the EU are debating how best to reduce the amount of tropical deforestation resulting from the production of the commodities they import.
- Some experts argue that laws should restrict any products tinged with deforestation, while others say regulations should allow in imports that come from areas that were deforested legally in the countries in which they were produced.
- The debate involves questions around sovereignty, equality, and, ultimately, what strategy will best address the urgent need to stem the loss of some of the world’s most important repositories of carbon and biodiversity.

Overexploited and underprotected: Study urges action on Asia’s rosewoods
- Rosewood is one of the world’s most trafficked wildlife products: The value of the trade, driven by demand from luxury furniture markets, exceeds that of ivory.
- Despite increased legal protections and export bans in recent years, illegal logging and cross-border trade continues to decimate rosewood populations across Asia, Africa and Latin America.
- A new study reveals the threats facing isolated and fragmented populations of three rosewood species in the Greater Mekong region and identifies where conservation and restoration action could have the most benefits.
- The study recommends a variety of approaches to protect the viability of remaining natural populations and their genetic diversity, including community forestry, smallholder planting initiatives, agroforestry, and storing seeds in gene banks.

New study offers answers for why tropical birds are more colorful
- A new study has confirmed what biologists have long suspected: that tropical birds are much more colorful than their temperate peers.
- The study involved a mathematical color analysis of more than 24,000 pictures of 4,500 birds from around the world, and found that species from Amazon, West Africa and Southeast Asia were on average 30% more colorful than those in the Northern Hemisphere.
- The researchers suggest this difference may be down to energy availability: with more food year-round and more constant temperatures, tropical birds have been able to evolve more elaborate visual signals.
- Diet is another possible factor: fruits rich in organic pigments are abundant in the tropics, and this pigment tends to accumulate in the feathers of the birds that eat them.

Does citizen ownership of natural resources hold the key to realizing deforestation commitments? (commentary)
- The approaches to COP26’s global commitment to stop deforestation by 2030 may be inadequate, as they can only partly address the major drivers of deforestation.
- An additional approach based on transparent economic data disclosure and mobilization of public awareness could be a promising addition to that commitment.
- Such approaches that emphasize citizen ownership of natural resources, and which quantify net owner shares, losses, and the very large prospective societal returns, could work, a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Opaque infrastructure project ‘a death sentence’ for Cambodia’s Prey Lang Wildlife Sanctuary
- In November 2021, the Cambodian government approved the development of 299 kilometers (186 miles) of 500-kilovolt power lines through Prey Lang Wildlife Sanctuary by Schneitec Northern to link Phnom Penh’s electrical grid to two coal-fired power plants in Laos, following a power purchase agreement signed in October 2019. The power lines are planned to transect the largest tract of lowland evergreen forest remaining in Southeast Asia, and critics say the project puts at risk at risk one of the country’s largest carbon stocks as well as poses a threat to Prey Lang’s Indigenous residents and two watersheds vital to Tonle Sap Lake, which sustains millions of Cambodians.
- Leaked documents from April 2021 show that the consulting firm that conducted the environmental impact assessment had suggested three possible routes for Schneitec’s power lines, with two alternative routes that skirted the already-deforested eastern and western edges of the protected area respectively. Industry experts have suggested that building power lines through forested terrain can cost between 1.5 and three times as much as through scrubland or flat terrain.
- The power line plans come as satellite data reveal 2021 was the worst year on record for deforestation in Prey Lang and international institutions condemn widespread illegal logging in the protected area.
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow

Community participation trumps penalties in protecting seascapes, study suggests
- Giving Indigenous peoples and local communities a say in the design and management of marine protected areas boosts conservation outcomes, a new study indicates.
- The study focused on the governance of four MPAs in Indonesia’s Bird’s Head Seascape and found that fish biomass tended to be higher in areas where these communities are more involved in decision-making and had more local management rights.

Large-scale logging in Cambodia’s Prey Lang linked to politically-connected mining operation
- Illegal logging appears to be taking place openly inside a swath of protected forest that authorities in Cambodia have only authorized for a feasibility study for limestone mining. Locals and conservationists say the wood leaves the concession awarded to KP Cement in the Prey Lang Wildlife Sanctuary and is laundered through sawmills owned by Think Biotech.
- It’s not clear why the Cambodian authorities would award a concession in the middle of one of the last remaining swaths of primary forest left in the country, or why they would give it to a company linked to a tycoon with a long history of environmentally destructive activities.
- New data from Global Forest Watch show that 2021 was the worst year on record for deforestation in Prey Lang, with more than 8,000 hectares (20,000 acres) of primary forest lost in what appears to be a trend of increasing destruction.
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow

2021 tropical forest loss figures put zero-deforestation goal by 2030 out of reach
- The world lost a Cuba-sized area of tropical forest in 2021, putting it far off track from meeting the no-deforestation goal by 2030 that governments and companies committed to at last year’s COP26 climate summit.
- Deforestation rates remained persistently high in Brazil and the Democratic Republic of Congo, home to the world’s two biggest expanses of tropical forest, negating the decline in deforestation seen in places like Indonesia and Gabon.
- The diverging trends in the different countries show that “it’s the domestic politics of forests that often really make a key difference,” says leading forest governance expert Frances Seymour.
- The boreal forests of Eurasia and North America also experienced a spike in deforestation last year, driven mainly by massive fires in Russia, which could set off a feedback loop of more heating and more burning.

Funding, titling project for Indigenous-led organizations launched
- One of the latest conservation funding mechanisms, the Community Land Rights and Conservation Finance Initiative (CLARIFI), plans to channel funds directly to Indigenous and locally-led organizations and title at least 400 million hectares (988 million acres) of land to reduce deforestation.
- According to organizers, this will avoid 1.1 to 7.4 GtCo2e (gigatons of carbon dioxide equivalent) of emissions as 33% of the Earth’s tropical forest carbon is at risk without recognizing community rights to land.
- At least $10 billion is needed to boost legally recognized territories, but much is required to attain the other goals of the initiative, says Dr. Solange Bandiaky-Badji, coordinator of Rights and Resources Initiative.
- Organizers will be holding planning meetings in the Congo Basin and Latin America in May and June to deliver a total of $25 million to Indigenous-led initiatives and test its funding project.

Beyond CO2, tropical forests a ‘cool’ solution to climate crisis, study finds
- Forests, increasingly looked to for their role in addressing climate change, can draw carbon from the atmosphere, but they also have more localized impacts on temperature and weather.
- Forests are responsible for about 0.5°C (0.9°F) of cooling globally when their ability to sequester carbon and these biophysical effects are considered, a recent study has found.
- Tropical forests, with their speedy uptake of carbon and the local cooling they provide — by humidifying the air, for example — are considered a “double win” for the climate.

Tropical trees’ growth and CO2 intake hit by more extreme dry seasons
- A new study has found that dry seasons that are warmer and drier than usual can stunt the growth of tropical trees, causing them to take in less carbon dioxide.
- While trees tend to grow more during the wet season, the researchers found that the dry season actually had a stronger impact on tree growth than the wet season.
- As climate change continues to raise temperatures, tropical trees could face increased risk of mortality and the possibility of becoming a net source of carbon, rather than a carbon sink.

Researchers turn to drones for that big-picture view of the forest canopy
- Scientists need to collect data fast to understand how forests are changing due to climate change and deforestation.
- In a recent study, scientists flew drones over the forest canopy to learn more about tree mortality. The drones revealed new patterns because of the large areas they can cover. According to one researcher, a single drone can cover an area in a few days that would take a team a year on foot.
- Drones are also helping local and Indigenous communities monitor forest fires and deforestation as well as harvest resources more sustainably.
- Yet experts say that the useful tool should complement, and not replace, fieldwork done on the ground.

Australia’s rainforest species gain ground through landscape linkages
- Corridors of planted rainforest trees — landscape linkages — are a straightforward, but costly, on-ground action that can repair past damage and bolster ecosystem resilience in Australia’s Wet Tropics region.
- In the Atherton Tablelands wildlife corridors, now in their third decade, the diversity of naturally regenerating plant species has increased, with trees, vines, rattans, shrubs, palms, ferns and orchids colonizing the planted sites.
- The corridors are providing connectivity and additional habitat for a range of rainforest wildlife, including some threatened by climate change.
- To thoroughly measure the biodiversity outcomes of the linkages, monitoring would need to be more regular, and target a broader range of taxa.

Young forests can help heal tropical aquatic ecosystems: Study
- Microbial communities are important indicators of ecological degradation in the tropics, often reflecting levels of disturbance and contamination in rivers and streams.
- In an attempt to monitor the ecological condition of various streams in central Panama, researchers at the Smithsonian Tropical Research Institute (STRI) assessed the impact of various land usages, such as cattle pasture and secondary forest, on microbial diversity and community structure.
- In less than a decade, researchers say, reforested land allows bacterial communities to recover, highlighting the importance of reforestation for overall ecosystem recovery.

Math campus multiplies threats to Rio de Janeiro’s dwindling Atlantic Forest
- A plan to create a new mathematics campus with student accommodation in Rio de Janeiro is being challenged by residents as it calls for the removal of 255 trees in a patch of the already severely diminished Atlantic Forest.
- A study shows the construction site sits on a slope that poses a high geological risk, leaving residents worried about flooding and landslides in an area already affected by intense rainfall.
- Experts say there are irregularities in the licensing granted to the construction, and environmental laws are not being respected.
- The Institute for Pure and Applied Mathematics (IMPA), which is building the new campus, says all its licenses are in order, that it will reforest the area, and that the educational and social benefits will be worth it.

Human influence on tropics predates Anthropocene, holds clues to current crisis
- A suite of studies recently published in the Proceedings of the National Academy of Sciences examine human interactions in the tropical environment from the Late Pleistocene to the Holocene and what’s now known as the Anthropocene.
- According to the editors of the volume, tropical forests are the most threatened terrestrial settings after the polar ice caps.
- Many of the studies found that humans have been living in the tropics and using its resources for millennia, impacting local ecosystems and biodiversity.
- The studies challenge the concept of the Anthropocene as a defining moment in history in which humans became a force that shaped nature.

New study shows where to focus efforts to save long-neglected small mammals
- Two small mammal groups — Rodentia (like mice, beavers, squirrels) and Eulipotyphla (like shrews, moles and hedgehogs) — together contain nearly half of all known mammal species.
- A new study provides an updated picture of where all of the globally threatened species from the two groups occur.
- The study also identified regions that are home to rodents and eulipotyphlans currently classified as data deficient or DD — species whose conservation status we simply don’t know.
- The authors say they hope the study will not just get people excited about working with small mammals, but also encourage funders to invest in conservation or research projects focusing on these long-neglected but species-rich animal groups.

2015-2016 El Niño caused 2.5 billion trees to die in just 1% of the Amazon
- New research shows how a combination of high temperatures, intense drought, and human-caused fires resulted in dramatic forest loss in the Lower Tapajós Basin in the Brazilian Amazon.
- According to the authors, forest reduction meant that one of the world’s largest carbon sinks generated almost 500 million tons of CO2 emissions, an amount higher than the annual emissions of developed countries such as the U.K. and Australia.
- Due to climate change, more frequent extreme droughts are predicted to affect most of the Amazon basin in this century; in this scenario, the 2015 El Niño could be seen as a window into the future.

Platform presents unpublished data on Brazilian biodiversity
- Partnership between scientists and journalists translates scientific data into visual information to warn of the importance of preserving Brazil’s biomes.
- Brazil alone accounts for 17% of the entire terrestrial territory of the tropics with a biodiversity that is more abundant than entire continents: over 20% of the freshwater fish on the planet and 17% of all birds are found in Brazil.
- One problem is the lack of investment in research to survey biodiversity, which usually comes at a slower pace than changes in ecosystems – animals and plants are at risk of disappearing before scientists are able to get to know them.

Meet the kitten-sized, clown-faced monkey that’s leaping toward extinction
- The buffy-headed marmoset is down to no more than 2,500 individuals scattered across dwindling patches of Brazil’s Atlantic Forest.
- It faces a range of threats, from yellow fever to climate change, but the biggest one is hybridization with other marmoset species released into its habitat from the pet trade.
- Conservationists working to save the species warn that populations are declining rapidly, with little funding for studies or captive-breeding programs, and a lack of political will under the current government to act urgently.
- One possible conservation solution is to establish “safe haven” forests for unmixed buffy-headed marmosets that will exclude hybrid animals, but this will difficult and costly, experts say.

Coastal Indonesian village adapts to life amid rising tidal floodwaters
- Cars once drove along the road in front of residents’ homes in coastal Timbulsloko village on the northern coast of Indonesia’s Java Island. Now, only canoes can pass; when the tide recedes, the water is knee-deep.
- Timbulsloko experiences severe tidal flooding caused by land subsidence, abrasion, nearby major construction, and climate change.
- Residents are starting to respond: A network of interlocking boardwalks now connects the submerged hamlets to dry land, and the village has designated a protected coastal area and prohibited the clearing of mangroves.
- The goal is to prevent further coastal damage and ensure the safety of residents’ settlements. The community is also beginning to discuss sustainable aquaculture.

Study shows it took the Amazon as we know it over 6 million years to form
- An asteroid impact near Mexico 66 million years ago triggered an ecological catastrophe that claimed nearly half of all plant species and took Amazon forests more than 6 million years to recover from.
- Colombian researchers analyzed fossilized pollen and leaves and found plant diversity declined by 45% after the impact; when plant diversity finally recovered, open forests of ferns and conifers had been replaced by dense, closed-canopy forests dominated by flowering plants.
- The researchers suggested three interlinked explanations for the sudden transition: the extinction of large-bodied dinosaurs at the end of the Cretaceous reduced forest disturbance; dust from the impact acted as a fertilizer; conifers were more likely to go extinct.
- In the time periods studied, Earth’s climate was warmer and CO2 levels were higher, showing that climate alone is not enough to trigger a forest-to-savanna transition, with the pace of warming and deforestation the crucial puzzle pieces that determine whether today’s forests can survive.

Belize’s Maya Forest Corridor a ‘missing link’ to giant rainforest reserve (commentary)
- With nearly 40% of its lands under protection, Belize already contributes significantly to the IUCN’s post-2020 biodiversity framework of preserving 30% of the planet by 2030.
- Now conservationists hope to create the Maya Forest Corridor, connecting the massive Belize Maya Forest in the country’s northwest with the Maya Mountains Massif network of protected areas in southern Belize.
- It would also connect these areas of Belize with adjacent protected areas of La Selva Maya in Guatemala and Mexico, and become the largest rainforest preserve north of the Amazon, a haven for threatened and endangered species including the jaguar, the Central American river turtle and spider monkey, and Baird’s tapir.
- “My hope is the corridor will be approved and a massive expanse of Central American rainforest will be fused together,” writes a research professor with Northern Arizona University in this commentary piece. The views expressed are of the author, not necessarily Mongabay.

Arctic biodiversity at risk as world overshoots climate planetary boundary
- The Arctic Ocean biome is changing rapidly, warming at twice the rate of the rest of the world. In turn, multiyear sea ice is thinning and shrinking, upsetting the system’s natural equilibrium.
- Thinner sea ice has led to massive under-ice phytoplankton blooms, drawing southern species poleward; fish species from lower latitudes are moving into the peripheral seas of the Arctic Ocean, displacing and outcompeting native Arctic species.
- Predators at the top of the food chain, such as polar bears, are suffering the consequences of disappearing ice, forced onto land for longer periods of time where they cannot productively hunt.
- The Central Arctic Ocean Fisheries Agreement has been signed by 10 parties to prevent unregulated commercial fishing in the basin until the region and climate change impacts are better understood by scientists. International cooperation will be critical to protect what biodiversity remains.

New map shows where the 80% of species we don’t know about may be hiding
- A new study maps out the regions of the world most likely to hold the highest number of species unknown to science.
- The study found that tropical forests in countries like Brazil, Indonesia, Madagascar and Colombia had the highest potential for undescribed species, mostly reptiles and amphibians.
- According to the lead researcher, the main reason for species going undescribed is a lack of funding and taxonomic experts in some parts of the world.
- He added that it’s essential to learn about as many species as possible to protect them, but that undescribed species are currently not taken into account by governing bodies like the UN’s Convention on Biological Diversity (CBD).

BlackRock must commit to Indigenous rights — not just climate change (commentary)
- BlackRock is an investment management firm reportedly with $8 trillion in assets. It is also well documented for its financing of large-scale mining, fossil fuel production and agribusiness projects across Latin America doing harm to Indigenous communities in Colombia, Ecuador, Guatemala, Brazil and elsewhere.
- The company has recently become outspoken about its position to vigorously combat climate change. But even though the United Nations recognizes Indigenous peoples as the best stewards of the environment, guardians of their lands and defenders against climate change, BlackRock remains virtually silent on Indigenous issues.
- If the company’s climate change commitment is to be taken seriously by the world, then BlackRock needs to step up now and adopt an explicit “Forest and Indigenous Rights Policy.”
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Fruit-eating, seed-pooping animals can help restore degraded forests
- Restoring degraded forests can be expensive and complicated, but Brazilian researchers may have a simple technique to add to the restoration toolbox: enlisting fruit-eating animals to spread seeds.
- A new study shows that many species of mammals and birds will consume seeds inserted into fruits at feeders and then excrete the seeds over wide areas.
- This novel proof-of-concept study highlights the importance of plant and animal interactions to restore the natural ecology of forests people have destroyed or degraded.

6% of Earth’s protected land is used to grow crops, study finds
- Protected areas are intended safeguard the planet’s vulnerable inhabitants – including 83% of its endangered species.
- A new study reveals that cropland takes up 13.6% of the planet’s ice-free surface area and overlaps with 6% of its protected areas.
- While some species are at home in agricultural fields, many are not – particularly the endangered species many protected areas were created to safeguard.
- The study’s authors call for national and international sustainability goals to implement a more holistic, data-driven approach when it comes to improving food security and preserving habitat.

Monitoring tropical deforestation is now free and easy
- Thanks to Norway’s Ministry of Climate and Environment and the satellite monitoring group Planet, anyone with an internet connection can now view monthly updates of high-resolution satellite imagery of tropical forests for free.
- At 5-meter (16-foot) resolution, the imagery allows users to see the removal of individual trees and makes it easier to determine the causes of deforestation.
- The high-resolution, high-frequency imagery is especially powerful when combined with early-warning forest loss alerts such as the GLAD alerts visualized on the Global Forest Watch platform.
- The Monitoring of the Andean Amazon Project (MAAP) plans to use this new imagery to enhance its real-time monitoring program, quickly detecting and confirming deforestation in the Amazon to inform its partners in the field. MAAP provides several examples of the new technology in action.

Critical temperature threshold spells shorter lives for tropical trees
- Rising temperatures as a result of climate change are making tropical forests hotter, which translates into shorter life spans for tropical tree species, a new study shows.
- Tropical forests host about 50% of Earth’s biodiversity and 50% of its forest carbon stocks; their capacity to capture and store carbon depends on their health and longevity.
- The authors of the study warn that the shorter life span raises concerns about the future potential of forests to offset CO2 emissions from fossil fuel burning.
- They also warn that temperatures will keep rising in the near future — “even if we were to take drastic emissions reductions measures.”

Reforestation projects should include tree diversity targets, too (commentary)
- Trees can rapidly remove carbon from the atmosphere, so climate change mitigation efforts often center on reforestation efforts.
- This should not invite the planting of monocultures, but rather a diversity of native trees adapted to the areas being reforested, which support biodiversity.
- Native tree reforestation can also support local communities: “People can be employed to play the role of the spider monkey, the tapir, and the toucan,” in replanting forests, says botanist Ruthmery Pillco Huarcaya who is currently working to propagate the critically endangered rainforest species, Pleodendron costaricense.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Without planting more trees in the tropics, we can’t fix the climate (commentary)
- Planting ‘the right tree in the right place’ is key to restoring forests and halting climate change.
- To be effective though, planting should largely be done in the tropics, where they can grow with maximum rapidity vs northern regions (where tree planting can also add to the albedo effect, canceling out some carbon sequestration benefit).
- Other benefits of focusing on the tropics are those that accrue to developing nations, where tree planting can improve both local environments and economies, through projects like agroforestry.
- This article is a commentary, the views expressed are those of the author, not necessarily of Mongabay.

One year on: Insects still in peril as world struggles with global pandemic
- In June 2019, in response to media outcry and alarm over a supposed ongoing global “Insect Apocalypse,” Mongabay published a thorough four-part survey on the state of the world’s insect species and their populations.
- In four, in-depth stories, science writer Jeremy Hance interviewed 24 leading entomologists and other scientists on six continents and working in 12 nations to get their expert views on the rate of insect decline in Europe, the U.S., and especially the tropics, including Latin America, Africa, and Australia.
- Now, 16 months later, Hance reaches out to seven of those scientists to see what’s new. He finds much bad news: butterflies in Ohio declining by 2% per year, 94% of wild bee interactions with native plants lost in New England, and grasshopper abundance falling by 30% in a protected Kansas grassland over 20 years.
- Scientists say such losses aren’t surprising; what’s alarming is our inaction. One researcher concludes: “Real insect conservation would mean conserving large whole ecosystems both from the point source attacks, AND the overall blanket of climate change and six billion more people on the planet than there should be.”

Mining covers more than 20% of Indigenous territory in the Amazon
- A new report from the World Resources Institute and the Amazon Geo-Referenced Socio-Environmental Information Network reveals that mining has impacted more than 20% of the Amazon’s Indigenous territory.
- The analysis shows that deforestation rates are as much as three times higher on Indigenous lands with mining compared to those without.
- The study’s authors suggest that improved law enforcement, greater investment in Indigenous communities and stricter environmental protections are necessary to combat the surge of mining in the Amazon.

500 years of species loss: Humans drive defaunation across Neotropics
- A new study indicates that human activities, such as overhunting, habitat loss, and fires, have contributed to a more than 56% decline in species in mammal assemblages in the American tropics.
- The study drew on animal inventories at more than 1,000 Neotropical study sites, from studies published in the past 30 to 40 years, but with data going back to the time of European colonization of the American tropics.
- The Amazon and Pantanal wetland regions are considered to be relatively “faunally intact,” according to the study, but the current fires in these regions would be adversely affecting wildlife and their habitats.
- The researchers say they hope their findings can inform effective conservation policies, such as better management and policing of existing protected areas, and efforts to stop illegal hunting, deforestation and fires.

Game changer? Antarctic ice melt related to tropical weather shifts: Study
- Scientists predominantly believe that the tropics have the largest influence on global weather. Now, new research suggests that the melting of Antarctic sea ice could impact places as far away as the equator.
- In one of the first studies to look at the link between Antarctic sea ice and tropical weather patterns, researchers found that melting sea ice in Antarctica is likely warming ocean surface temperatures, delivering more rain, and potentially creating El Niño-like effects in the equatorial Pacific.
- Earlier this year, another study found that accelerating sea ice melt in the Arctic could be linked to the intensification of Central Pacific trade winds, the emergence of El Niño events, and the weakening of the North Pacific-Aleutian Low Circulation. So it may be that Arctic and Antarctic changes are synergistically impacting the tropics.
- It’s expected that ice loss at both poles will combine to warm the equatorial Pacific surface ocean by 0.5℃ (0.9℉) and increase rain by more than 0.3 millimeters (0.01 inches) of rain per day in the region.

Melting Arctic sea ice may be altering winds, weather at equator: study
- Scientists predominantly believe that the tropics have the largest influence on global weather, but new research suggests that climate change-driven Arctic heating and rapid melting of Arctic sea ice could impact places as far away as the equator.
- A new study, published today, found that accelerating ice melt in recent decades could be linked to Central Pacific trade wind intensification, the emergence of El Niño events, and a weakening of the North Pacific Aleutian Low Circulation — a semi-permanent low pressure system that drives post-tropical cyclones and generates strong storms.
- A 2019 study likewise revealed a close connection between winter Arctic ice concentration over the Greenland-Barents Seas and the El-Niño-Southern Oscillation (ENSO) in the following winter. Another study out this month found that in prehistoric times, periods of major permafrost thawing were tied to an absence of Arctic summer sea ice.
- Other research has drawn connections between rising Arctic temperatures and changes in the jet stream — a fast-moving river of air that circles the northern polar region. A slowing of the jet stream, and its looping far to the south, is thought to be stalling temperate weather patterns, worsening droughts, storms and other extreme weather.

Study finds massive reorganization of life across Earth’s ecosystems
- A new study pulls together data from 239 studies that looked at more than 50,000 biodiversity time series.
- The research reveals that almost 30 percent of all species are being swapped out for other species every 10 years.
- The scientists found that the reorganization and loss of species are happening much more quickly in some environments than in others, a finding that could help inform future conservation.

Mongabay investigative series helps confirm global insect decline
- In a newly published four-part series, Mongabay takes a deep dive into the science behind the so-called “Insect Apocalypse,” recently reported in the mainstream media.
- To create the series, Mongabay interviewed 24 entomologists and other scientists on six continents and working in 12 nations, producing what is possibly the most in-depth reporting published to date by any news media outlet on the looming insect abundance crisis.
- While major peer-reviewed studies are few (with evidence resting primarily so far on findings in Germany and Puerto Rico), there is near consensus among the two dozen researchers surveyed: Insects are likely in serious global decline.
- The series is in four parts: an introduction and critical review of existing peer-reviewed data; a look at temperate insect declines; a survey of tropical declines; and solutions to the problem. Researchers agree: Conserving insects — imperative to preserving the world’s ecosystem services — is vital to humanity.

Despite a decade of zero-deforestation vows, forest loss continues: Greenpeace
- Nearly a decade after the Board of the Consumer Goods Forum (CGF) passed a resolution to achieve zero net deforestation by 2020 when sourcing commodities such as soya, palm oil, beef, and paper products, these commodities continue to drive widespread deforestation, a new report from Greenpeace says.
- Greenpeace contacted 66 companies, asking them to demonstrate their progress in ending deforestation by disclosing their cattle, cocoa, dairy, palm oil, pulp and paper and soya suppliers. Of the companies that did respond, most came back with only partial information.
- The report concludes that not a single company could demonstrate “meaningful effort to eradicate deforestation from its supply chain.”
- Other experts say that transparency in supply chains is improving, and that measuring compliance to zero-deforestation goals requires more nuanced research.

The Great Insect Dying: How to save insects and ourselves
- The entomologists interviewed for this Mongabay series agreed on three major causes for the ongoing and escalating collapse of global insect populations: habitat loss (especially due to agribusiness expansion), climate change and pesticide use. Some added a fourth cause: human overpopulation.
- Solutions to these problems exist, most agreed, but political commitment, major institutional funding and a large-scale vision are lacking. To combat habitat loss, researchers urge preservation of biodiversity hotspots such as primary rainforest, regeneration of damaged ecosystems, and nature-friendly agriculture.
- Combatting climate change, scientists agree, requires deep carbon emission cuts along with the establishment of secure, very large conserved areas and corridors encompassing a wide variety of temperate and tropical ecosystems, sometimes designed with preserving specific insect populations in mind.
- Pesticide use solutions include bans of some toxins and pesticide seed coatings, the education of farmers by scientists rather than by pesticide companies, and importantly, a rethinking of agribusiness practices. The Netherlands’ Delta Plan for Biodiversity Recovery includes some of these elements.

The Great Insect Dying: The tropics in trouble and some hope
- Insect species are most diverse in the tropics, but are largely unresearched, with many species not described by science. But entomologists believe abundance is being impacted by climate change, habitat destruction and the introduction of industrial agribusiness with its heavy pesticide use.
- A 2018 repeat of a 1976 study in Puerto Rico, which measured the total biomass of a rainforest’s arthropods, found that in the intervening decades populations collapsed. Sticky traps caught up to 60-fold fewer insects than 37 years prior, while ground netting caught 8 times fewer insects than in 1976.
- The same researchers also looked at insect abundance in a tropical forest in Western Mexico. There, biomass abundance fell eightfold in sticky traps from 1981 to 2014. Researchers from Southeast Asia, Australia, Oceania and Africa all expressed concern to Mongabay over possible insect abundance declines.
- In response to feared tropical declines, new insect surveys are being launched, including the Arthropod Initiative and Global Malaise Trap Program. But all of these new initiatives suffer the same dire problem: a dearth of funding and lack of interest from foundations, conservation groups and governments.

The Great Insect Dying: Vanishing act in Europe and North America
- Though arthropods make up most of the species on Earth, and much of the planet’s biomass, they are significantly understudied compared to mammals, plants, birds, amphibians, reptiles and fish. Lack of baseline data makes insect abundance decline difficult to assess.
- Insects in the temperate EU and U.S. are the world’s best studied, so it is here that scientists expect to detect precipitous declines first. A groundbreaking study published in October 2017 found that flying insects in 63 protected areas in Germany had declined by 75 percent in just 25 years.
- The UK Butterfly Monitoring Scheme has a 43-year butterfly record, and over that time two-thirds of the nations’ species have decreased. Another recent paper found an 84 percent decline in butterflies in the Netherlands from 1890 to 2017. Still, EU researchers say far more data points are needed.
- Neither the U.S. or Canada have conducted an in-depth study similar to that in Germany. But entomologists agree that major abundance declines are likely underway, and many are planning studies to detect population drops. Contributors to decline are climate change, pesticides and ecosystem destruction.

The Great Insect Dying: A global look at a deepening crisis
- Recent studies from Germany and Puerto Rico, and a global meta-study, all point to a serious, dramatic decline in insect abundance. Plummeting insect populations could deeply impact ecosystems and human civilization, as these tiny creatures form the base of the food chain, pollinate, dispose of waste, and enliven soils.
- However, limited baseline data makes it difficult for scientists to say with certainty just how deep the crisis may be, though anecdotal evidence is strong. To that end, Mongabay is launching a four-part series — likely the most in-depth, nuanced look at insect decline yet published by any media outlet.
- Mongabay interviewed 24 entomologists and researchers on six continents working in over a dozen nations to determine what we know regarding the “great insect dying,” including an overview article, and an in-depth story looking at temperate insects in the U.S. and the European Union — the best studied for their abundance.
- We also utilize Mongabay’s position as a leader in tropical reporting to focus solely on insect declines in the tropics and subtropics, where lack of baseline data is causing scientists to rush to create new, urgently needed survey study projects. The final story looks at what we can do to curb and reverse the loss of insect abundance.

The tropics are widening rapidly, but humans may not be entirely to blame — yet
- An uptick in tropical expansion the past few decades would seem to suggest that some unknown factor, perhaps as a result of human activities, is driving the widening of the tropics. But a study led by Paul Staten, an atmospheric sciences professor and researcher at Indiana University Bloomington in the United States, finds that that is not necessarily the case.
- Staten and his colleagues determined that the tropics have been widening at an average rate of about 17 miles, or 0.2 degrees latitude, per decade in both the Northern and Southern hemispheres, which is not outside of what climate models predict.
- Staten and team state in the study that no hidden forcing is required in order to explain the tropical expansion we’ve already observed — our current models, which take into account natural variation and manmade global warming, can account for the 0.2 degree-per-decade expansion rate they established.

The tropics are in trouble, warn scientists
- Plants and animals in the tropics are threatened by a range of issues, warn researchers writing in the journal Nature.
- The tropics are facing a mélange of well-documented human-driven threats: destruction of forests and marine ecosystems, overexploitation by the likes of industrial fishing fleets and commercial hunters, the spread of diseases and invasive species, and the growing impacts of climate change, which stress both ecosystems and their inhabitants.
- These threats aren’t likely to diminish soon. Human population continues to rise, but growing affluence means that it is increasingly outpaced by resource consumption, which acts a multiplier in terms of humanity’s planetary footprint.
- To stave off this bleak future, the researchers call for “major improvements in local and global governance capacity and a step-change in how environmental objectives are integrated into broader development goals.”

Species evolve more than twice as fast at poles as in tropics: study
- Considering the swarming biodiversity at the equator, and the lack of diversity near the poles, scientists have long assumed that species evolve more rapidly in warm waters. But a new study of the evolutionary development of 30,000 fish species has turned that idea on its head.
- Biologists found that a fish species in the tropics split into a new species on average every 10 to 20 million years. But near the poles, that average rate is roughly every four million years – more than twice as fast.
- The reason may be the far more extreme and less stable climatic conditions found near the poles. This results in more frequent extinctions, which clears out species diversity and empties ecological niches, setting the stage for the next new burst of species formation in other groups of organisms.
- But if species form faster at the poles than in the tropics, why isn’t there greater biodiversity in the Arctic and Antarctic than at the equator? One possibility: while speciation is more rapid at the poles, extinctions may be more numerous too. But this still isn’t clear, and more research will be needed to find out.

Coral reefs thrive next to rat-free islands, new study finds
- A team of ecologists examined the impacts that invasive rats on tropical islands have on coral reef ecosystems.
- Because rats eat seabird eggs and young, they can decimate seabird populations.
- With fewer seabirds depositing their guano on islands, coral reef ecosystems near rat-infested islands can’t support as much life.
- The findings suggest that eradicating rats from tropical islands could be a straightforward way of bolstering the health of coral reefs.

Implicit gender, racial biases may hinder effectiveness of conservation science, experts warn
- Implicit gender and racial biases are just as prevalent in the conservation science community as elsewhere, experts say, and could be harming the effectiveness of the work being done, particularly in developing countries.
- The mostly male and Western scientists working in this field may be shutting out important contributions from local researchers and practitioners in tropical developing countries, as well as preventing a diversity of perspectives in the scientific literature.
- Having a diverse team and being inclusive at every step, especially in the decision-making process for a conservation project, are some of the ways to resolve these biases, the researchers suggest.

Farmer-managed natural regeneration: the fastest way to restore trees to degraded landscapes?
- Farmer-managed natural regeneration (FMNR) is the encouragement of regeneration and then the management of trees and shrubs that sprout from tree stumps, roots and seeds found in degraded soils, such as those currently in agricultural production.
- Trees and crops grown in combination like this is called agroforestry and provides multiple benefits to farmers, crops, climate, and wildlife.
- FMNR has been successful in Niger, with 5 million hectares of formerly treeless cropland found to have re-greened via the practice.
- Cathy Watson of World Agroforestry Centre interviewed two of her colleagues currently conducting research on FMNR to hear what they’re learning and to ask if it’s the fastest (or the easiest) way to re-green degraded croplands.

‘A real surprise’: Study reveals low phosphorus doesn’t hinder rainforest growth
- Phosphorus is an important nutrient for plants and is required for protein synthesis and cell division, among other critical processes. But phosphorus is typically scarce in the soils underlying tropical forests.
- A group of researchers investigated this by looking at trees in the forests of Panama, where soil phosphorus levels vary considerably.
- The researchers were surprised to find that tree species in low-phosphorus soils grew faster on average than species in high-phosphorus soils. Their results also indicate the growth rates of tree communities comprised of a variety of species doesn’t change doesn’t change in relation to soil phosphorus amount.
- The authors and other scientists say the study’s findings further our understanding of the dynamics between tropical plants and phosphorus and could help farmers grow crops more effectively without having to use environmentally harmful fertilizers.

Mesoamerican Reef gets improving bill of health
- The Healthy Reefs Initiative released its report card on the state of the Mesoamerican Reef. In the last decade, the grade has risen from poor to fair.
- The Mesoamerican Reef runs along about 1,000 kilometers of the coastlines of Mexico, Honduras, Belize and Guatemala.
- Fish populations have grown, as have the coral that make up the reef.
- But scientists were concerned to see an increase in macroalgae on the reef, which results from runoff and improperly treated sewage effluent.

Reef bleaching five times more frequent now than in the 1980s, study finds
- Severe coral bleaching is now happening about every six years, whereas in the 1980s, it took place every 25 to 30 years.
- Severe bleaching can kill the reef’s constituent corals.
- It takes at least a decade for a reef to recover from bleaching.
- Unless humans act to halt the rise of global temperatures, scientists predict that we’re headed for a time when bleaching might be an annual occurrence.

Charcoal and cattle ranching tearing apart the Gran Chaco
- The year-long probe of Paraguay’s charcoal exports by the NGO Earthsight revealed that much of the product was coming from the Chaco, the world’s fastest-disappearing tropical forest.
- Suppliers appear to have reassured international supermarket chains that it was sustainable and that they had certification from international groups such as FSC and PEFC.
- But further digging by Earthsight revealed that the charcoal production methods used may not fit with the intent of certification.
- Several grocery store chains mentioned in the report have said they’ll take a closer look at their supply chains, and the certification body PEFC is reexamining how its own standards are applied.

Singapore statement on International Day of the Tropics: infrastructure deficit must be met sustainably (commentary)
- The majority of the world’s poorest and most vulnerable communities are in the Tropics, and will be most affected by environmental challenges like climate change.
- The landmark report State of the Tropics in 2014 outlined the full range of these challenges.
- As the world celebrates the second UN International Day of the Tropics on June 29, 2017, a new report on one of the great needs, Sustainable Infrastructure in the Tropics, is launched in Singapore.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Protected areas found to be ‘significant’ sources of carbon emissions
- The researchers found 2,018 protected areas across the tropics store nearly 15 percent of all tropical forest carbon. This is because protected areas tend to have denser, older forest – thus, higher carbon stocks.
- Their study uncovered that, on average, nearly 0.2 percent of protected area forest cover was razed per year between 2000 and 2012.
- Less than nine percent of the reserves that the researchers sampled contributed 80 percent of the total carbon emissions between 2000 and 2012, putting this small subset of reserves on par with the UK’s entire transportation sector.
- The researchers say their findings could help prioritize conservation attention.

Tropical birds may not fare so well in a warming world
- The study took place in Panama’s Soberania National Park, an approximately 100-square-mile area of protected rainforest that is home to more than 500 bird species.
- Over the course of the study, researchers caught more than 250 different species in mist nets, but only had enough data to model 20 of the most common.
- For 19 of the 20 species sampled, a longer dry season had a negative effect on population size. For six of those species, the effect was especially strong.

Countries with most biodiversity spend least on conservation: study
- Countries in the tropics have the greatest biodiversity, but spend relatively less amount of money per capita on conservation than temperate countries, a new study has found.
- These countries also share cultural traits that are often different from wealthier temperate countries.
- For conservation to succeed, cultural values of a country cannot be ignored, the study concludes.

Regrown rainforests degrade after farm-fallow cycles take hold
- Secondary-growth forests are becoming more common, particularly in the tropics where old-growth forest is often cleared to make way for agriculture.
- A recent study shows that without careful management of farming practices, SFs that regrow on agricultural land in the Brazilian Amazon become less resilient and healthy over time.
- A growing human population places an increasing pressure on the tropics to produce enough food, tropical farmland will need to be carefully managed to ensure long-term productivity.

Live slow, decline fast: ‘speed of life’ may explain tuna population declines

It is well understood that large-bodied species of mammals, fish, and birds are especially susceptible to steep population declines and even extinction due to environmental pressures and overhunting. But new research shows that time-related traits, such as growth rate and longevity, might be even more important, at least for fish. A team led by researchers […]
First-of-its-kind mapping technique sheds new light on tropical forests

Rainforest in Kinabatangan, Malaysia. Photo by Rhett A. Butler. Scientists at the Woods Hole Research Center in Massachusetts have developed vegetation height maps for the entire tropics at very fine spatial scales. These first-of its-kind high resolution maps can help researchers estimate forest cover, monitor biodiversity and wildlife habitats, and manage and monitor […]
New birds arise due to emigration not separation

A bird’s eye view of speciation in the Neotropics How long does it take for a new species to develop? Not long, it turns out. In fact, only a few thousand years — an evolutionary blink of an eye. A recent article published in Nature tracked neotropical bird speciation, or the process by which new […]
Towards the poles: tropical cyclones on the move

If you thought your relatively northerly or southerly location sheltered you from Mother Nature’s worst storms, think again For years we have known that the tropics are expanding towards the poles. However, there is something decidedly destructive accompanying that shifting warm weather: tropical cyclones. In a recent study led by Dr. James Kossin from the […]
Scientists discover ‘shark’ in Sumatran forest

This article is based on a Mongabay-Indonesia story by Lili Rambe: Sejumlah Spesies Ikan Baru dan Langka Ditemukan di Hutan Harapan Jambi. In early April, Indonesian scientists discovered an endangered freshwater fish in the Harapan rainforest of Jambi. The species had never before been observed in the region, and is declining elsewhere throughout its range. […]
City lights threaten rainforests by deterring bats

Fruit-eating bats play an important role in forest regeneration, collecting and spreading seeds far and wide. However, human development may be stymying bat-mediated dispersal. In a new study published in the British Ecological Society’s Journal of Applied Ecology, researchers found that fruit bats avoid feeding in light-polluted areas, which may significantly affect forest growth. Scientists […]
The enemy of your enemy is your ant bodyguard: spider uses one predator for protection against another

The notion of spiders using ants as bodyguards seems a bit contradictory, but that is exactly what occurs on the tropical forest floors of the Philippines. The jumping spider (Phintella piatensis) strategically nests within the vicinity of the aggressive Asian weaver ant (Ocecophylla smaragdina) as a defense tactic against its main predator, the spitting spider […]
Global warming could shift tropical rainfall

Ongoing burning of fossil fuels could flip which portion of the tropics receive more rainfall: the southern hemisphere or the northern. Currently, the northern hemisphere tropics is the wetter of the two, but why this is has long baffled scientists. Now, new research in Nature Geoscience has discovered that rainfall in the tropics is in […]
Hope rises as new malaria vaccine shows promise

Last week U.S. scientists with the biotech company, Sanaria, announced a possible breakthrough on an experimental malaria vaccine: an early trial led to a success rate of 80 percent for the two highest doses. Malaria remains one of the world’s worst scourges. In 2010, the World Health Organization reported 219 million documented cases of malaria […]
Wildlife in the tropics plummets by over 60 percent

Devastated rainforest in Indonesian Borneo. Photo by: Rhett A. Butler. In 48 years wildlife populations in the tropics, the region that holds the bulk of the world’s biodiversity, have fallen by an alarming 61 percent, according to the most recent update to the Living Planet Index. Produced by the World Wide Fund for Nature (WWF) […]

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