topic: Urbanization

topic: Urbanization

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Uttarakhand limits agricultural land sales amid protests & tourism development
- Following widespread protests, Uttarakhand’s Chief Minister Pushkar Singh Dhami has issued orders to district magistrates to deny permission to sell agricultural lands to those outside the state.
- With just 14% of its land designated for agriculture and more than 65% of the population relying on agriculture, calls for legislation to safeguard residents’ land rights have intensified.
- With a lack of comprehensive, updated land records, monitoring the usage of farmlands for nonagricultural purposes has become challenging.
- Lack of employment opportunities and resources as well as shifting weather patterns and climate change have pushed numerous farmers to sell their land holdings.

Circular solutions vital to curb enviro harm from cement and concrete
- Concrete is ubiquitous in the modern world, but building cities, roads and other infrastructure and more comes with an environmental cost. Cement and concrete production is responsible for significant pollution, human health impacts and vast amounts of climate-fueling emissions.
- Manufacturing cement is particularly problematic as the chemical process used to make it produces nearly 8% of global carbon emissions. Experts also underline that demand for the mined and quarried aggregate materials used to make concrete, such as sand, is responsible for biodiversity and ecosystem harm.
- Demand for cement and concrete is set to grow, especially in developing countries to improve infrastructure and living standards. Experts say that solutions reigning in the sector’s environmental footprint are vital, especially curbing greenhouse gas emissions that could absorb a major chunk of our remaining carbon budget.
- Solutions to address these challenges include a suite of technological advances, material changes, improved resource efficiency, and circular economy approaches. Some specifics: electrifying cement kilns, low-carbon concrete, carbon capture, and bio-architecture utilizing natural building materials.

In highly urbanized Japan, city farmers are key to achieving organic goal
- The Japanese government aims to convert at least 25% of all its farmland to organic by 2050, a significant jump from just 0.5% in 2020.
- Researchers found that urban and semi-urban farmers in Tokyo tend to adopt environmentally friendly practices more often than rural farmers, in response to a more environmentally conscious populace, a greater number of organic food stores and restaurants, and freedom from pressure to conform with farming practices in rural communities.
- Japan’s urban farmers are also more likely to diversify their business, such as by engaging in direct sales and creating hands-on farming events or volunteer opportunities, strengthening their ties with the local community.
- Despite positive steps, agricultural land in Tokyo continues to shrink, mirroring a trend in declining biodiversity. Advocates say continued efforts will be needed to preserve and make the best use of the capital’s urban farms.

Ecological overshoot is a ‘behavioral crisis’ & marketing is a solution: Study
- The current ecological crises facing our planet are extensively the result of a human behavioral crisis, according to a 2023 paper appearing in the journal Science Progress. The paper cites economic growth, marketing and pronatalism as key drivers of human “maladaptive behaviors” resulting in ecological overshoot.
- The authors, three of whom have affiliations with the marketing industry, argue that behavior manipulation through the use of marketing, media, and entertainment could go a long way toward solving our environmental problems. It “may just be our best chance at avoiding ecological catastrophe,” they write.
- Experts interviewed by Mongabay say they agree that human behavior contributes to the environmental problems faced today, but they disagree with the paper’s focus on behavior manipulation of individuals as a leading solution, which risks shifting focus from the urgent need for broader systemic changes, such as decarbonization.
- “The most effective and scalable behavior change interventions often target social, physical and economic factors rather than individuals directly,” notes behavioral scientist Kristian Steensen Nielsen.

To save topsoil & reduce pollution, Bangladesh moves toward alternative bricks
- Bangladesh plans to move from traditional fuel-burned bricks to alternative bricks to save agricultural topsoil and reduce air pollution.
- As part of the initiative, the government has already set a target to use alternative bricks made from concrete blocks for all government works starting this year.
- The environment department estimates that the nation’s 7,000 or so brickfields currently use 3,350 million cubic feet of topsoil or clay annually as a raw material to produce around 23 billion bricks.
- Meanwhile, the Bangladesh Housing and Building Research Institute (HBRI) demonstrates through its research and development how the nation could save an enormous amount of topsoil by utilizing alternative building materials and bricks in place of the conventional bricks made from agricultural topsoil, which is necessary to maintain soil fertility.

Controversy brews over proposed dam on Kathmandu’s Bagmati River
- A proposed dam on Kathmandu’s Bagmati River aims to collect rainwater during the wet season and release it in the dry season to rejuvenate the river, but skeptics question its viability and safety.
- Concerns include environmental impact, potential destruction of trees, pollution and the risk of dam failure in earthquake-prone Nepal.
- Political, ecological and community-related questions remain unanswered, with some advocating for alternatives and further analysis before proceeding.

Risky development in Uttarakhand: Interview with environmentalist Ravi Chopra
- Ravi Chopra, an esteemed environmentalist based in Uttarakhand, is renowned for his dedicated efforts to preserve natural resources within the Himalayan region.
- In 2019, the Supreme Court appointed Chopra as chair of a committee to review the controversial Char Dham highway construction project; he later resigned after construction proceeded despite the committtee’s findings that the project could pose significant risks to the ecologically fragile region.
- The Char Dham project drew international attention in November 2023, when a segment of a tunnel collapsed, trapping dozens of workers for 17 days.
- In a recent interview with Mongabay, Chopra discussed the environmental risks and hazards of development in Uttarakhand.

Livelihoods at stake as Lake Victoria’s papyrus swamps come under pressure: Photos
- The papyrus swamps at the edges of Lake Victoria in East Africa have for generations provided a livelihood to communities living here.
- While some harvest reeds to make into mats, baskets, and handicrafts, others catch the plentiful fish that nurse in the shelter of the reedbeds.
- The swamps are also home to birds that have become specialized to live amidst the papyrus reeds in a narrow geographic range, while the reedbeds serve as filters taking up nutrients and retaining sediment — in the process also allowing carbon storage through the buildup of significant detritus and peat deposits.
- However, development pressure for new resorts and farmland is putting this ecosystem under threat, while the introduction of the Nile perch here in the 1950s has devastated native fish species.

Why the Amazon’s small streams have a major impact on its grand rivers
- An unprecedented time-series study in the basin of the Tapajós River, a major tributary of the Amazon, assesses the level of degradation of small rivers threatened by agribusiness expansion.
- Researchers from several universities will assess the conservation status of 100 streams spread between the municipalities of Santarém and Paragominas, at the confluence of the Tapajós and the Amazon, which were first analyzed in 2010.
- The impact of dirt roads and their network of river crossings, which causes sediment load, siltation, erosion and changes in water quality, was one of the factors that caught researchers’ attention in the initial time-series study.
- Experts say that local development models should ideally start from water to land, rather than the other way around, given the importance of water for the rainforest, its biodiversity, and the inhabitants who depend on both.

Study: Singapore biodiversity loss is bad — but not as bad as previous estimate
- A recent study concludes that Singapore has lost 37% of its species since the construction of the city began in 1819.
- While high, the figure is significantly lower than a 2003 estimate of 73% species loss during the same period, a difference the authors of both the current study and the 2003 estimate attribute to more advanced statistical modeling.
- Although 99% of Singapore’s forests have been wiped out, extinction rates have leveled off and all remaining primary forest is protected, which researchers say presents an opportunity to conserve remaining species and work to reintroduce animals that have gone locally extinct.

The Amazon’s archaeology of hope: Q&A with anthropologist Michael Heckenberger
- A professor at the University of Florida, Michael Heckenberger has been visiting and studying Indigenous peoples at the Upper Xingu River for decades and says the Amazon is already facing its tipping point: “It’s a tipping event.”
- In this interview for Mongabay, he tells how he and his colleagues have been practicing an “archeology of hope” — helping the Indigenous peoples in the region to prepare for climate change, using ancestral knowledge pulled out from archaeological research.
- “It should be the default, not the exception, to assume that there were Indigenous people living or dwelling in some way on almost every inch of Brazilian land,” he says about the marco temporal thesis, which aims to limit new Indigenous territories, now being discussed in Brazilian Congress.

Indonesian islanders draw line in sand as Dubai-style reclamation nears
- Residents of the island of Lae-Lae off the Makassar seafront in eastern Indonesia are stepping up their opposition to a major reclamation project conceived in 2009.
- The community has staged seven demonstrations this year to press their opposition to the ongoing development, which they warn will decimate their near-shore fisheries.
- The provincial government has previously said the island’s population will not be required to move, and that Lae-Lae will derive economic benefits from the development.

Tien Hai Nature Reserve latest battleground in Vietnam’s push for development
- In April, the government of Vietnam’s Thai Binh province quietly issued a decision to remove protection from 90% of Tien Hai Nature Reserve, which forms an integral part of the UNESCO-recognized Red River Delta Biosphere Reserve.
- After environment activists publicized the decision last month, public backlash prompted officials to pause plans to develop a resort in the degazetted area — at least for now.
- The project is just one of several recent cases in which the country’s protected wetlands and forests have been threatened by development projects.

Nepal’s BP Highway threatens endemic, critically endangered lizard
- The dark sitana, a lizard endemic to a town in Nepal, is critically endangered by the loss and degradation of its habitat due to the BP Highway and unplanned urban development.
- Researchers are studying the ecology and threats of the dark sitana and conducting conservation outreach to raise awareness and support for its protection among local communities and stakeholders.
- The dark sitana is understudied and neglected by the government and needs more research and conservation efforts to prevent its extinction, researchers say.

Elders call for Indigenous cultural preservation in new Indonesia capital
- The Balik and Paser Indigenous communities worry that traditions risk becoming supplanted by Indonesia’s new capital city on the east coast of Borneo.
- More than half of the new capital estate could be considered customary territory, according to the Indigenous Peoples’ Alliance of the Archipelago.
- Indigenous elders said that if rituals are to be conserved, then the customary territories must be maintained, while the local government says it is working on programs to uphold local culture.

São Paulo students plant mini-forests on school grounds as urban oases
- Four thousand students planted nearly 10,000 trees on public school grounds in the city of São Paulo, Brazil, in 2022, and another eight mini-forests will be planted in 2023.
- The project, created by the NGO formigas-de-embaúba, could be implemented at 650 public schools in the city, according to a MapBiomas study.
- Guarani leaders from the Jaraguá Indigenous Territory participate in the project, which was inspired by Indigenous knowledge and cosmology.
- Specialists see mini-forests at schools as a strong strategy for creating a democratic network of “cooling places” or urban oases in the face of intensifying global warming.

On burning-prone Borneo, planners work to fireproof Indonesia’s new capital
- The developers of Indonesia’s new capital city, Nusantara, have begun preparations to protect the site from the threat of wildfires and smoke pollution.
- City planners are to launch drones to monitor the estate for wildfires and hope to operate a dedicated fire brigade from next year.
- Nusantara faces lower wildfire risks owing to its east-coast location and distance from Borneo’s flammable peatlands, but officials nonetheless stress the need to build an early-warning system for wildfires around the site.

Soil carbon in urban parks important in fighting climate change, study shows
- A recent study shows that urban parks and green spaces throughout the world have a similar amount of carbon stored in their soils as in natural regions close to cities, which means urban green spaces can be important to global carbon sequestration and mitigating the potential effects of climate change.
- Soil microbes in urban green spaces play a vital role in carbon storage, but that carbon is also vulnerable to loss through microbial respiration in an increasingly warmer world; researchers emphasize the need for greater understanding of the soil microbiome in urban policies and planning.
- For context, Suriname has 93% forest cover nationwide and is often referred to as the world’s “greenest” country — but the capital city, Paramaribo, lacks a structural approach to urban greenery.
- Researchers conducted a project to promote a greener and more livable Paramaribo, with the aim of mitigating the effects of climate change and raising awareness among citizens.

‘Alarming’ heat wave threatens Bangladesh’s people and their food supply
- Temperatures across Bangladesh have hit record highs as the country swelters in the heat wave currently sweeping across much of Asia.
- Dhaka recorded its highest temperature in six decades this month, at 40.6°C (105.1°F), with meteorologists warning that heat waves like this are becoming more common.
- The heat also threatens the country’s all-important rice crop, with the government advising farmers to ensure sufficient irrigation to prevent heat shock to their plants.
- With the heat now easing, a new fear has emerged: Cooler temperatures signal the start of the monsoon, which, in the northeast region of Bangladesh often means floods that can also destroy rice crops.

Human migration to Nepal’s tiger capital adds to conservation challenges
- Chitwan district in central Nepal is home to the eponymous national park that’s come to symbolize the country’s success in growing its tiger population.
- But the district’s human population is also growing, at a rate far higher than the national average, driven by migrants seeking better health services and other urban amenities.
- Conservationists have raised concerns that the growing human presence in the area will pose additional challenges to conservation efforts and put a strain on natural resources such as forests, rivers and land.
- Some warn of an increase in human-tiger conflict, especially involving migrants who don’t share the same traditional knowledge that Indigenous residents have of coexisting alongside the big cats.

In Chile, drought and human expansion threaten a unique national park
- La Campana National Park in Chile is home to threatened species of plants and animals, many found nowhere else.
- The region has been suffering a 12-year drought, and in spite of rains this year, experts say it’s too early to say whether the climate trend has been reversed.
- The park also faces pressure from expanding farmland and urbanization, including the conversion of native vegetation to fruit monocultures, and the encroachment of domestic animals that can spread disease to wildlife.

Cambodia’s elites swallow up Phnom Penh’s lakes, leaving the poor marooned
- Lakes in Phnom Penh are fast being filled in and parceled off as prime real estate to wealthy and politically connected individuals.
- Families who have for generations fished and practiced aquaculture on the lakes and surrounding wetlands face eviction and the loss of livelihoods.
- At the same time, experts warn that filling in these natural rainwater reservoirs risks exacerbating flood intensity and damage in the Cambodian capital.
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow.

Mangrove restorers in Haiti bet on resilience amid rising violence
- Haiti is one of the most deforested countries in the world today, with its mangroves in particular now dotting just 30% of its coastline, much of it in thin, fragmented pockets.
- The main threat to the mangroves is the cutting of the trees to produce charcoal, an important fuel for cooking in a country where only a quarter of the population has access to electricity.
- Several mangrove restoration projects have been initiated over the years, and many abandoned due to waning community interest, natural disasters, or poor planning.
- More recently, rising rates of violence have prevented restoration teams from going to the field and coordinating with one another, but some are hopeful that communities remain receptive to mangrove restoration despite all the other hardships they’re experiencing.

Engineers bet on a miracle to bring Nepal’s holy river back to life
- Officials in Nepal hope to start reviving the sacred Bagmati River that runs through Kathmandu with the help of a rainwater reservoir.
- The Dhap Dam is expected to go into operation in October, when it will start providing water for the Bagmati during the dry season — a period when the river can shrink to just 3% of its monsoon peak.
- Unlike most other rivers in Nepal, the Bagmati doesn’t flow from the Himalayan icepack, and instead is fed by springs that, in recent decades, have dried up as a result of urbanization.
- But with the river so polluted that a study declared it “not suitable for aquatic life,” even those behind the project acknowledge that the best they can hope for is to improve its condition, not bring it back to life.

Turkey’s authoritarian development ignores planetary boundaries
- Turkey, an increasingly autocratic country since Recep Tayyip Erdoğan and his AKP political party came to power in 2002, was the very last G20 nation to ratify the Paris climate agreement, doing so in October 2021. It has failed so far to take meaningful action against the steady increase of its greenhouse gas emissions.
- Turkey may also be exceeding limits to many of the nine planetary boundaries critical to the survival of civilization. In addition to unregulated carbon emissions, experts are concerned over the nation’s worsening air and plastic pollution, altered land use due to new mega-infrastructure projects, and biodiversity harm.
- For the past two decades, Turkey’s economic growth has been based on carbon-intensive sectors — including fossil fuel energy, transportation, construction, mining and heavy industry — all heavily supported by the state via subsidies, questionable public-private partnerships, and lax environmental laws.
- Turkish president Recep Tayyip Erdoğan’s authoritarianism has undermined checks and balances which might otherwise enhance environmental governance. As activists and academics criticize the lack of transparency regarding environmental data, they face rising governmental pressures and repression.

‘Lost’ Amazonian cities hint at how to build urban landscapes without harming nature
- Archaeologists have discovered the remains of a Pre-Columbian urban settlement that spans more than 4,500 square kilometers (1,737 square miles) in Bolivia’s Llanos de Mojos region, in the Amazon rainforest.
- This is the latest proof that large, complex urban societies existed in the Amazon before the arrival of the Spanish, challenging the idea that the rainforest was always a pristine, untouched wilderness.
- Some experts say we could learn from these Indigenous urban planning strategies, which, with a sophisticated land and water management system, show us how cities and the rainforest once co-existed without degrading the environment.

9m deaths a year from pollution, the ‘largest existential threat’ to humans
- A new report has found that pollution is responsible for 9 million premature deaths per year, the majority of them caused by air pollution.
- While deaths associated with household pollution and water quality have decreased, deaths related to industrialization and urbanization have increased.
- It’s estimated that lead and other chemical pollutants are responsible for about 1.8 million deaths, but the authors say this is likely to be an undercount.
- The authors argue that more needs to be done to address the issue of pollution, which would also help mitigate the impacts of climate change.

Unseen crisis: Threatened gut microbiome also offers hope for world
- Plants and animals provide a home within themselves to an invisible community of microbes known as the microbiome. But these natural microbial communities are being degraded and altered by human-caused biodiversity loss, pollution, land-use change and climate change.
- On the macro level, habitat loss and diminished environmental microbe diversity, particularly in urban environments, is altering the gut microbiomes of humans and wild animals. Studies have linked microbiome changes to higher risk of chronic and autoimmune diseases.
- Coral bleaching is an extreme example of climate stress-induced microbiome dysfunction: During heat waves, beneficial microbes go rogue and must be expelled, leaving the coral vulnerable to starvation. Microbiome resilience is key to determining corals’ ability to acclimate to changing ocean conditions.
- There are solutions to these problems: Inoculating coral with beneficial microbes can reduce bleaching, while the restoring natural green spaces, especially in socioeconomically deprived urban areas, could encourage “microbiome rewilding” and improve human and natural community health.

History on the walls: Graffiti brings Manaus’s Indigenous roots to light
- Graffiti artists are painting murals recounting the history of Indigenous people and honoring their culture in the capital of Amazonas, the Brazilian state with the largest Indigenous population.
- Indigenous community leaders say they hope the movement will increase the visibility of Indigenous people living in cities, who often face poverty, housing insecurity and stigma that discourages many from maintaining their culture and identity.
- Fearing cultural erasure, Indigenous activists are urging Indigenous people to embrace their ancestry and identify themselves as Indigenous in Brazil’s next census, expected to begin in August 2022.
- As Indigenous people in cities reclaim their identities, occupying public spaces through street art is playing a key role in the fight to make Indigenous people in urban areas more visible.

Threatened wetlands in Paraguay’s Lake Ypacaraí raise legal questions
- Wetlands surrounding the protected Lake Ypacaraí in Paraguay are being filled in to allow for the construction of housing and tourism projects.
- In addition to providing habitats for countless species of flora and fauna, the wetlands act as a filter for freshwater and help control flooding and erosion.
- The projects were approved by the Ministry of Environment, sparking outcry from congressmen who want to know if protected area laws are being ignored in favor of urban development.

In Nepal, a messy breakup with hybrid seeds is good news for organic farming
- Some farmers in Nepal are slowly returning to organic farming methods using native crop varieties, after more than a decade of hybrid seeds being available in the market.
- Critics say hybrids require more intensive use of chemical fertilizers and pesticides, and produce fruit and vegetables with less flavor than native or openly pollinated varieties.
- The government is also supporting the push for organic, including through subsidies for farmers, but acknowledges it’s difficult to change minds.
- Many farmers continue to prefer hybrids, despite the associated problems, because of their higher yields, which mean more income.

In Kathmandu, a struggle for water amid worsening floods
- In Kathmandu, residents face the dual challenges of freshwater aquifers running dry, and increasingly unpredictable monsoons causing flash floods.
- The combination of climate change and a rapidly growing urban population is straining an already overwhelmed municipal water system, forcing many residents to have to buy water by the tank at high prices.
- An ambitious project to pipe water to the city from a nearby river was shut down within months of its long-delayed start — a victim of the monsoon floods that destroyed a dam and water treatment plant.
- Another solution being explored is rainwater harvesting, which proponents say should be complemented by restoration of Kathmandu’s green areas and restrictions on drawing groundwater.

Insects and other invertebrates on tropical islands face challenges as development and tourism expand
- Oceanic islands host 50 percent of the world’s endangered species, but human activities can greatly disturb these isolated ecosystems.
- The number and diversity of insects and other invertebrate species decrease on islands dedicated to urban development or tourism, according to a new study in the Maldives.
- Fragmented habitats take a toll on these species on urban islands, while pesticides are the suspected culprits on tourist islands.

Borneo’s bearded pigs and traditional hunters adapted to oil palms. Then came swine fever
- Oil palm expansion and urbanization have altered the traditional hunting of bearded pigs by the Indigenous Kadazandusun-Murut (KDM) community in Sabah, Malaysia, a new study has found.
- Researchers interviewed 38 hunters on changes in pig behavior and hunting practices before the African swine fever (ASF) epidemic hit Sabah in 2021.
- They found that even though pig hunting patterns have changed dramatically, the activity remains a cornerstone of KDM communal culture for food, sport, gift-giving, festivals and celebrations.
- As ASF devastates wild pig populations, the researchers’ findings highlight a need for long-term hunting management that conserves both the bearded pig and Indigenous cultural traditions.

As populations grow, how will thirsty cities survive their drier futures?
- The world’s rapidly expanding cities are on a collision course with climate change, presenting unprecedented challenges to municipal and national governments as they work to continue providing residents with access to safe and sufficient water.
- Increasingly, calls are made to rethink the way we develop urban watersheds and the way we live in them — with water sourcing, transport, use and reuse planning key to the process. One approach, water-sensitive urban design (WSUD) entails a complete reimagining of the role and use of water in urban areas.
- WSUD embraces the water cycle, and considers the entire watershed where cities are located. It uses green infrastructure such as permeable pavements, green roofs and rain gardens, to greatly reduce stormwater runoff. Conscious design allows water to be recycled and reused repeatedly for various purposes. Waste is greatly reduced.
- Some cities are already changing their development pathways to be more resilient to inevitable future climate extremes, with Singapore and Cape Town leading the way. Future water stress can be overcome, but work needs to start now before extreme weather events, including mega droughts and floods, hit.

As humans close in on their habitat, crocodiles in the Philippines snap back
- In mangrove-rich Palawan, residents are advised to steer clear of crocodile habitats as the hatching season makes the reptiles more aggressive.
- There are two crocodile species in the Philippines: the endemic Philippine crocodile and the bigger and more aggressive saltwater crocodile, found throughout Asia and the Pacific.
- Crocodile attacks on humans have increased in recent years, which experts attribute to the encroachment of houses within crocodile habitats, particularly mangrove swamps.
- To minimize the risk to lives, both human and crocodile, NGOs say Palawan should implement its crocodile conservation program, which includes, among other things, relocating residents away from crocodile habitats.

Researchers urge better protection as wetlands continue to vanish
- Wetlands provide many benefits to ecological and human communities alike, from nutrients and nurseries to flood control and climate change mitigation.
- However, as much as 87% of the world’s wetlands has been lost over the past 300 years, with much of this loss happening after 1900.
- In response, nations banded together and in 1971 ratified the Ramsar Convention on Wetlands, an intergovernmental treaty designed to facilitate wetland conservation and sustainable use around the world.
- But 50 years on, researchers say the convention has not led to effective protection and wetlands continue to blink out.

The promise of ‘bird-friendly’ cities: Q&A with author Timothy Beatley
- University of Virginia professor Timothy Beatley lays out a case for building cities that are better hosts to birds and the broader natural world in The Bird Friendly City: Creating Safe Urban Habitats.
- His case rests on the benefits that birds provide, and he discusses the need for equal access to nature for all city-dwelling communities.
- From small home improvements to skyscrapers covered in greenery, Beatley covers the adaptations necessary for more “natureful” cities around the world.

Singapore embarks on a million-tree planting spree to protect its future
- Between 1953 and 2018, Singapore lost nearly 90% of its mangroves to urban expansion and other human activities.
- Singapore has launched a new nature park that covers 400 hectares (990 acres), in an area that serves as a refueling site for migratory birds and a home to oriental hornbills, otters and crocodiles.
- The initiative is part of a larger effort to plant 1 million trees across the city-state by 2030.
- In addition to adding wildlife habitat, researchers say reforestation will help sequester carbon, lower the temperature of the city, and provide buffers against erosion and a rising sea.

Missing mangroves are root of contention over Philippine airport project
- Work on a new international airport project in Bulacan, just north of Manila, has already resulted in the decimation of more than 600 mangrove trees in the Manila Bay area, residents say.
- Bulacan’s coast is a key mangrove forest and important bird and biodiversity area, and one of several sites along the bay that’s facing threats due to land reclamation projects.
- The Bulacan “aerotropolis,” a 2,500-hectare (6,200-acre) airport complex, is part of President Rodrigo Duterte’s revised “Build, Build, Build” infrastructure program and has been awarded to San Miguel Corporation, the Philippines’ biggest company by revenue.
- The cutting of mangroves is prohibited under Philippine law, but no one has been held accountable for the hundreds of trees cut in Bulacan — a problem that residents and environmental groups say will intensify as construction of the airport returns to full force by October.

Discovery of threatened species drives bid to protect Vietnam forest
- The impoverished district faces the same threats as many of Vietnam’s natural areas, including poaching, deforestation and urban development.
- FFI and GreenViet, the conservation NGOs that carried out the survey, are working to convince government officials to establish a nature reserve or national park in Kon Plong.
- More than 120 species of mammals and birds were recorded in Kon Plong, including the critically endangered gray-shanked douc langur, a monkey endemic to Vietnam, as well as the northern yellow-cheeked gibbon, Owston’s palm civet, pygmy slow loris — all endangered species — plus Asiatic black bear, otters, and forest cats.

Podcast: Finding nature in cities
- Today we’re exploring nature in cities with author Kelly Brenner and urban forester Georgia Silvera Seamans.
- To help us dive into urban ecology, we speak with Kelly Brenner, a naturalist and writer whose most recent book is called Nature Obscura: A City’s Hidden Natural World. Brenner, who lives in Seattle, Washington, joins us today to discuss some of the wildlife encounters she details in the book and to provide some tips on how anyone can go about exploring nature in the city they live in.
- We also welcome to the program Georgia Silvera Seamans, an urban forester who has spearheaded a number of “hyper local urban ecology” projects in New York City. Silvera Seamans is here to tell us about the Washington Square Park Eco Projects, which include monitoring, educational, and advocacy efforts in the iconic NYC park, and to tell us how urban ecosystems benefit all city-dwellers.

As lockdown ends, Manila’s dirty air is back. It doesn’t have to stay
- It’s still possible to maintain improved air quality even as lockdown eases in Metro Manila, a newly released report says.
- The air quality in the Philippine capital region improved after the start of the lockdown on March 15, but began deteriorating in May, when authorities started easing the measures.
- The report recommends adapting many of the measures implemented during the lockdown, including maintaining limited work arrangements and coming up with “people-centric” urban planning designs.
- Local governments should shift to technologies that depend less on fossil fuels and encourage this transition by providing incentives to both private citizens and companies, the report suggests.

Nature needs cities, and cities need nature (commentary)
- At a time when the world is losing its biodiversity at an alarming rate, and that loss has been linked to disease outbreaks, urban nature is more important than ever. Yet urbanization is a major cause of habitat loss – which drives much of the staggering loss of biodiversity
- With thoughtful planning, cities can connect habitats within and outside of city limits in ways that help protect populations of animals and plants that would otherwise be fragmented and vulnerable to extinction.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Insects decline on land, fare better in water, study finds
- A meta-analysis has found that land-dwelling insect populations are decreasing by about 0.92% per year, which amounts to 50% fewer insects in 75 years.
- The numbers of insects that live in the water are on the rise by about 1.08% per year, a figure scientists attribute to effective water protection measures over the past 50 years.
- Habitat loss is associated with the decline of insects in this study.

A watery onslaught from sea, sky and land in the world’s fastest-sinking city
- The Indonesian capital has 300 days of rain a year and 13 rivers running through it, so it doesn’t lack freshwater; but rampant development has left much of its area paved over, preventing this water from replenishing the aquifers.
- Instead, the water it gets — from rain and from rivers — often leads to flooding because it can’t be absorbed into the ground and can’t run out to sea.
- City authorities and planning experts agree that the extraction of water from the aquifers must end, but to do so will require providing universal access to clean water.
- Efforts are underway to clean up waterways, educate the public to not dump waste in rivers, and build infiltration wells that will allow the earth to once again capture rainwater.

‘Intense’ human pressure is widespread among terrestrial vertebrates, study finds
- A new study assessing the cumulative impacts of human activities on wildlife found that the vast majority of terrestrial species are facing “intense” pressure due to humanity’s footprint across the globe.
- Researchers looked at human pressures across the ranges of 20,529 terrestrial vertebrates and found that 85 percent of the animals included in the study, or some 17,517 species, are exposed to “intense human pressures” in half of their range. About 16 percent, or 3,328 species, are exposed to these pressures throughout their entire range.
- The researchers say that their results could help improve assessments of species’ vulnerability to extinction.

Decolonizing trees in a tropical city to nurture multi-cultural identity
- The survey found that 73 percent of trees in Georgetown were cultivated for their edible fruits.
- The random distribution of trees suggests social cohesion, fostered by a sharing of food traditions, and could provide a blueprint for other multicultural cities.
- But climate change and economic growth mean tree preservation and planting are needed to mitigate social and environmental impacts.

For Indonesia’s Kendari Bay, silting is a death sentence
- Researchers say the Kendari Bay, on the island of Sulawesi, is rapidly disappearing.
- The main culprit is land clearing for development projects around the bay and the rivers the feed it. The land clearing releases sediment into the water that eventually settles on the bottom of the bay.
- The bay may be decades from filling up completely, but studies suggest hope of saving its plant and animal life may already be lost.

Audio: Environmental justice and urban rat infestations
- Today we speak with Dawn Biehler, an associate professor at the University of Maryland, Baltimore County, whose research focuses on the history and public health impacts of rats and other pest species in Baltimore.
- The issue of urban pests like rats in Baltimore has been in the news lately due to tweets sent by US President Donald Trump about the city being “rat and rodent infested.” Trump isn’t the first American politician to use this kind of rhetoric to target communities that are predominantly made up of people of color, while ignoring the fact that policies deliberately designed to marginalize communities of color are at the root of the pest problems in many cities.
- Biehler, who is also the author of the 2013 book Pests in the City: Flies, Bedbugs, Cockroaches, and Rats, joins us on this episode of the Mongabay Newscast to discuss how rat infestations in cities are actually an environmental justice issue and how they can be dealt with in an environmentally sustainable manner.

West Nile virus lingers longer in birds exposed to light pollution
- House sparrows exposed to light at night had higher levels of West Nile virus in their blood for two days longer than sparrows that were exposed to darkness, according to a new study.
- The research sought to mimic the effects of light pollution common to urban environments on virus levels in a known reservoir of West Nile virus, which can cause a flu-like fever in humans.
- The team’s research suggests that an outbreak could be 41 percent more likely to happen as a result of the persistence of the virus in this host.

As Cambodia swelters, climate-change suspicion falls on deforestation
- Cambodia has one of the highest rates of deforestation in the world, with key drivers including demand for timber products, land-use conversion, and urbanization.
- Extreme temperatures have led to public criticism linking deforestation to unusually hot weather.
- The Cambodian government has denied this connection, but emerging science provides compelling links between the two issues.

Cities may save some species from extinction, but they don’t save species’ ecological functions
- Some species are not only able to adapt to life in urban areas but actually thrive and grow more abundant than they might have in their natural surroundings.
- Thus some cities have been declared urban conservation hotspots — but research published last year shows that while those cities might help preserve robust populations of otherwise threatened species, they do not help preserve the crucial ecological functions of those species.
- If species and the ecological functions they provide are allowed to disappear altogether from natural habitats and only continue to persist in urban areas, that could have “long-term, unexpected effects on ecosystems,” researchers say.

The view from the bottleneck: Is nature poised for a big comeback?
- A new theory, from bottleneck to breakthrough, posits that urbanization, falling fertility and the end of extreme poverty could result in a much greener world than the one we inherited.
- The scientists behind the idea believe that conservation must continue to “hold on” to species and places as nations make their way through the tightening bottleneck.
- If trends today persist, the global population could urbanize and fall dramatically in the next couple of centuries, turning conservation into restoration.
- This post is part of “Saving Life on Earth: Words on the Wild,” a monthly column by Jeremy Hance, one of Mongabay’s original staff writers.

Urbanization in Asia provides a window of hope for tigers, study finds
- The transition to cities by Asia’s human population is likely to affect the continent’s remaining tiger populations, according to a new study.
- Depending on policy decisions around migration, urbanization, education and economics, the trend toward urbanization could provide more space for tiger numbers to rebound.
- A team of researchers modeled five different “socioeconomic pathways” for the continent, showing that a focus on sustainable living could result in fewer than 40 million people living within the tiger’s range by the end of the century.
- But that number could also balloon to more than 106 million people if countries veer away from international cooperation and poor management of urbanization.

Cities could help conserve pollinator communities
- While cities are generally considered to be poorer in biodiversity than rural areas, new research finds that urban areas could actually play a key role in conserving pollinator communities.
- A team of researchers led by scientists at the UK’s University of Bristol studied pollinators and floral resources at 360 sites in four British cities representing all major urban land uses, including allotments (community gardens), cemeteries, gardens, man-made surfaces like parking lots, nature reserves and other green spaces, parks, sidewalks, and road verges.
- After sampling 4,996 insects and documenting 347 flower-visiting pollinator species interacting with 326 plant species, the researchers found that gardens and allotments provide especially good habitat for pollinators, and that lavender, borage, dandelions, thistles, brambles, and buttercups are important plant species for pollinator communities in cities.

Rhinos or roads? Nepal deals with a tricky balancing act
- Nepal’s Chitwan National Park, a UNESCO World Heritage Site, is home to the world’s second largest population of greater one-horned rhinos, as well as nearly 100 Bengal tigers and more than 54 other mammal species.
- After a 2016 mission, UNESCO warned that Chitwan could be placed on the World Heritage in Danger list if a number of planned infrastructure projects were completed as proposed.
- Since then, the largest projects have been suspended or rerouted; now, conservationists say they are more concerned by the impacts of unplanned urbanization and local flood-control projects.
- Local officials often struggle to balance protecting Chitwan’s ecosystem against the popular demand for infrastructure development projects.

Indigenous stewardship is critical to success of protected areas (commentary)
- A recent article in Science reports that, while the portion of the world’s terrestrial surface allocated to protected areas has grown to around one-sixth of the area available, a significant number of these areas are so compromised by human pressures that they may be unable to meet their conservation goals.
- What we increasingly understand is that if we are to address the threats posed by activities ranging from logging and mining to agriculture and urbanization effectively, we must seek out local solutions where possible. That means drawing on the knowledge of Indigenous Peoples and safeguarding their rights.
- In case after case, the world’s remaining strongholds of biodiversity remain intact thanks to the stewardship of the people living there. That is why conservation organizations have supported Indigenous Peoples and local communities as they negotiate with governments to win recognition of resource rights.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

‘Urban Raptors’: Q&A with authors of book on ecology and conservation of city-dwelling birds of prey
- Nest cameras have been set up in cities across the United States to give viewers an intimate look into the nesting activities of urban-dwelling birds of prey like eagles, falcons, hawks, and owls. These raptors represent a rare instance of wildlife thriving amidst the hustle and bustle of areas densely populated by mankind.
- Raptor researchers Clint W. Boal and Cheryl Dykstra are co-authors of Urban Raptors: Ecology and Conservation of Birds of Prey in Cities, a new book that explores the science of how these birds of prey have adapted to city life and what humans can do to support them.
- Mongabay spoke with Boal and Dykstra about the urban raptor species discussed in the book, what kinds of unique threats the birds of prey face in cities, and how important these urban populations are to overall raptor conservation.

US urban areas are losing 36 million trees every year, study finds
- Forest Service researchers estimate that urban areas in the U.S. lost a collective total of 1 percent of their tree cover between 2009 and 2014. In total, around 175,000 acres of tree cover was lost annually.
- At the same time, they found “impervious surfaces” like asphalt roads and buildings increased at 1 percent per year.
- Trees provide a variety of benefits to cities from shielding buildings from the sun and reducing cooling costs and energy consumption, filtering pollutants from water and air, mitigating flooding and erosion, and helping in the fight against global warming by storing carbon. In total, analysts estimate urban trees save the U.S. around $18.3 billion every year. Impervious surfaces do not provide these benefits and often have the opposite effect.
- The researchers urge changes to management policy to prioritize tree cover and create more programs focused on protecting urban forests.

Cities need forests too: A call for forests amid our concrete jungles (commentary)
- More than half the world’s population lives in cities, and that’s set to rise to two-thirds – more than 6 billion people – by 2050. Yet we still depend on forests more than we think.
- Having wild places around is critical, not just for nature but also for people. A wealth of studies have shown that cities with plenty of trees feel like healthier, happier places than those without.
- While deforestation has many drivers, one underlying challenge is that society doesn’t value forests enough. That’s something we can – and need to – change as individuals and as a collective. It starts with spending time in forests, connecting with nature, and showing that we care.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Leopards could reduce rabies by controlling stray dog numbers in India, study finds
- Stray dogs make up about 40 percent of the diet of the roughly 40 leopards currently living in Mumbai’s Sanjay Gandhi National Park, according to a recent study.
- Dog bites lead to perhaps 20,000 deaths from rabies each year in India, according to the World Health Organization.
- A team of scientists figures that leopards kill 1,500 stray dogs each year, reducing the number of bites by about 1,000 per year and the number of rabies cases by 90.

The uncertain future of Bogotá’s shantytowns
- Colombia’s massive population of internally displaced is second only to Syria, and thousands fleeing violence make homes in the forests outside of cities.
- Outside of Colombia’s capital of Bogotá, thousands live in groups of makeshift homes that form a range of communities from villages to shanytowns.
- The shanytowns present worsening health and public safety problems, and have a devastating impact on the forests where communities are established and growing.

Urban heat island effect could more than double climate costs for cities
- The higher climate toll that cities will pay is due to the urban heat island effect, which is caused by the replacement of vegetation and bodies of water by concrete, asphalt, and other materials that trap more heat. The effect is only further exacerbated by the abundance of things like cars and air conditioners in urban areas, which emit more heat and global warming pollution.
- An international team of researchers with the UK’s University of Sussex, Universidad Nacional Autónoma de México, and Vrije University Amsterdam looked at 1,692 cities around the world in order to determine just how much the urban heat island effect could compound the losses already expected to result from global warming.
- The researchers found that, on average, economic losses from higher temperatures could be 2.6 times higher in cities than they would be if heat island effects weren’t factored into the equation.

Bright lights, big city, tiny frog: Romer’s tree frog survives Hong Kong
- Discovered in the 1950s, Romer’s tree frog has so far been declared extinct, rediscovered, immediately declared Critically Endangered, been seriously threatened by an international airport, and become the focus of one of the first ever successful, wholesale population relocation projects conducted for an amphibian.
- At just 1.5 to 2.5 centimeters (0.6 to 1 inch) in length, this little brown frog lives at just a few locations within the sprawl of Hong Kong Island, as well as on a few outlying islands. It lives in moist forest leaf litter on the forest floor, and depends on temporary fish-free pools of water for breeding.
- When Hong Kong planned a major new international airport within the shrinking habitat of the Romer’s tree frog, scientists responded quickly, studying the animal’s lifestyle, eating and breeding habits; they then instituted a captive breeding program at the Melbourne Zoo, and launched a restoration program. It worked.
- While some restoration site populations have since failed, others continue to thrive. And with new protections now in place, scientists hold out some hope that Romer’s tree frog may be a Hong Kong resident for many years to come.

Battle for the Amazon: As Sinop grew, the Amazon rainforest faded away
- Sinop, a city of 125,000 people in the heart of the Brazilian Amazon in Mato Grosso state, is a modern success story. Prosperous and booming, the small urban center services a region dominated today by industrial agriculture.
- Few remember how the city came to be. As recently as the 1970’s, the Sinop region was mostly rainforest and occupied by indigenous peoples.
- At the time, Brazil’s military government highly favored large-scale land speculators. These men gained dubious title to millions of acres of rainforest, divided it into lots, and sold it off to poor Brazilian settlers. Many settlers found their transplantation into the Amazon very difficult.
- Indigenous and traditional people who lacked land titles were driven out, often violently. The story of Sinop is a story of development, exploitation and conflict that has continued to play out across the Amazon region — especially in the Tapajós River basin today.

Land-use change and management failures in China lead to significant amounts of carbon emissions: Study
- Driven by the country’s rapid economic development in recent decades, especially urbanization, agricultural expansion, and reforestation, China has undergone large-scale changes in land use.
- According to the authors of the study, published earlier this month in the journal Science Advances, their results “highlight the importance of improving land-use management, especially in view of the recently proposed expansion of urban areas in China.”
- The researchers discovered large carbon losses resulted from China’s poor land management.

Can nature thrive in cities? New book looks at changing face of nature in Bangalore
- By digging into Bengaluru’s dynamic past, Nagendra provides a gripping narrative of how the city’s inhabitants have constantly molded the city’s boundary and landscape over the past few centuries.
- Nagendra’s extensive research spanning nearly a decade shines through the book.
- The book takes its readers through the evolution and role of Bengaluru’s home gardens, public parks, village forests, sacred groves, trees lining the city’s roads, as well as the city’s rich network of lakes.

To stop the Zika virus from spreading in Brazil, specialists call for an ‘environmental revolution’
- The spread of the mosquito is not only caused by weather conditions and by a lack of awareness, but by a deep and environmental problem in Brazil.
- Urbanization in Brazil has led to the deforestation of large green areas, destroying the ecosystems in which the mosquitos and its predators used to reproduce.
- An estimated half of the world’s population lives in areas where mosquitoes that can spread Zika are prevalent, and the WHO is concerned the number of cases could jump to four million this year in the Western Hemisphere alone.

Are animals adapting to cities faster than we think?
- Cities are evolutionary hotspots, home to moths that changed color to camouflage themselves amongst pollution-stained trees, “superworms” that can munch on heavy metals, and birds that changed their tune to battle with noise pollution.
- A new paper indicates that cities may be causing these kinds of evolutionary changes to occur much faster than scientists thought was possible.
- If current evidence about the pace of change is correct there will be “significant implications for ecological and human wellbeing on a relatively short time scale,” the paper concludes.

Greener neighborhoods have less violent crime

Turn your neighborhood green and it may prevent violent crime in the long run, according to a new study in Landscape and Urban Planning, which found that violent crimes (assaults, robberies, and burglaries) occurred less often in greener areas of Philadelphia. The connection between greener neighborhoods and less violent crime even stood up after researchers […]
Carbon Management in the Built Environment – book review

Carbon Management in the Built Environment, written by Rohinton Emmanuel and Keith Baker, is the complete introductory textbook covering low carbon management for the built environment. Carbon Management in the Built Environment integrates climate change science, design, materials science, and policy into a classroom friendly text. Why does this matter to those of us interested […]
Cute koalas have become ‘urban refugees’

The 3rd Annual New York Wildlife Conservation Film Festival (WFCC.org) runs from January 30 – February 2, 2013. Ahead of the event, Mongabay.com is running a series of Q&As with filmmakers and presenters. For more interviews, please see our WCFF feed. Jimmy, an orphan whose mother was rundown by a car, is the star of […]
Energizing Sustainable Cities: Assessing Urban Energy – book review

Energizing Sustainable Cities: Assessing Urban Energy, edited by Arnulf Grubler and David Fisk, is a very well written book describing challenges and opportunities to define, analyze, and implement sustainable energy development for 21st Century urban centers. Urban populations, while roughly 50% of the global population, consume over 75% of the globe’s energy. Therefore, developing frameworks […]
From Intelligent to Smart Cities – a book review

From Intelligent to Smart Cities brings together recent and leading research on transitioning to smart cities from intelligent cities. Intelligent cities are multi-layered systems that focus on integrating institutional capacities within cities. This focuses on how institutions can cooperate employing advanced communication techniques. An example of an intelligent cities’ activity would be an innovation cluster, […]
Forests, farming, and sprawl: the struggle over land in an Amazonian metropolis

An interview with Karimeh Moukaddem, a part of our on-going Interviews with Young Scientists series. Typical farmhouse outside of Parauapebas. Photo by: Karimeh Moukaddem. The city of Parauapebas, Brazil is booming: built over the remains of the Amazon rainforest, the metropolis has grown 75-fold in less than 25 years, from 2,000 people upwards of 150,000. […]
Africa’s great savannahs may be more endangered than the world’s rainforests

Grasslands in Kenya’s Masai Mara. Photo by: Rhett A. Butler. Few of the world’s ecosystems are more iconic than Africa’s sprawling savannahs home to elephants, giraffes, rhinos, and the undisputed king of the animal kingdom: lions. This wild realm, where megafauna still roam in abundance, has inspired everyone from Ernest Hemingway to Karen Blixen, and […]
Featured video: turning yards and neighborhoods into wildlife habitat
A new animation by the American Society of Landscape Architects introduces viewers to the benefits of making their yards and neighborhoods wildlife friendly. By focusing on the threat of sprawl to biodiversity, the video shows how urban and suburban residents can use native plants, freshwater, and wildlife-friendly structures to allow a space for nature, and, […]
Asian cities face high disaster risk with 650,000 killed in 2000s
Asia’s cities are increasing vulnerable to natural disasters due to climate change, urban expansion, and poor planning, warns a report published this week by the Asian Development Bank. Disasters risk undermining recent economic gains in the region. Cyclones, severe storms, earthquakes, and other disasters kill thousands and cost billions of dollars every year. Climate change […]
Meet Cape Town’s volunteer ‘toad shepherds’

An interview with Hanniki Pieterse Western leopard toad signs that were put up this year. Photo courtesy of: Hanniki Pieterse. August marks the last month of winter in South Africa, and, as temperatures begin to rise, activists in Cape Town prepare for a truly unique conservation event. Every year at this time western leopard toads […]
Urban sprawl could doom some biodiversity hotspots by 2030

The endangered tomato frog in Madagascar. Photo by Rhett A. Butler. Projected urban expansion could consume hundreds of thousands of hectares’ worth of key biodiversity hotspots over the next twenty years, triggering the release of some 5 billion tons of carbon dioxide from direct land use change and further endangering hundreds of species, warns a […]
Japan declares its river otter extinct

Eurasian otter in Britain. The Japanese river otter was a subspecies of the Eurasian. Photo by: Catherine Trigg. Japan’s Ministry of the Environment today declared the Japanese river otter (Lutra lutra whiteleyi) extinct. Last seen in 1979 in the city of Susaki on the island of Shikoku, the unique subspecies was killed-off by overhunting and […]
US southern forests face bleak future, but is sprawl or the paper industry to blame?

White Marsh Clearcut, outside of the Green Swamp, North Carolina, US. Photo by: Abigail Singer, courtesy of Dogwood Alliance. More people, less forests: that’s the conclusion of a US Forest Service report for forests in the US South. The report predicts that over the next 50 years, the region will lose 23 million acres (9.3 […]
Environmental atlas highlights human impact in Latin America and Caribbean

A new atlas produced by the United Nations Environment Programme (UNEP) combines striking satellite images and rigorous data to present a unique and complex view of environmental changes taking place in Latin America and the Caribbean. The atlas, Latin America and the Caribbean Atlas of our Changing Environment, uses over 200 images to highlight the […]
It’s not just size that matters: how population affects climate change

As the world’s population increases, a surge in the number of older adults and the movement of people from the countryside to crowded cities will significantly affect levels of carbon dioxide emissions by 2050, according to a sweeping study published in the 11 October issue of the Proceedings of the National Academy of Sciences. A […]
Farms in the sky, an interview with Dickson Despommier

To solve today’s environmental crises—climate change, deforestation, mass extinction, and marine degradation—while feeding a growing population (on its way to 9 billion) will require not only thinking outside the box, but a “new box altogether” according to Dr. Dickson Despommier, author of the new book, The Vertical Farm. Exciting policy-makers and environmentalists, Despommier’s bold idea […]
The true cost of the Commonwealth Games

UK newspapers have been flooded this week and last by reports of the Commonwealth Games’ venue literally caving in and collapsing, athletes have deemed their village accommodation “filthy” and terrorists have apparently threatened attacks. Thanks to the late monsoon this year, floods are now a fear, and the Games’ venue has been choked by a […]
White roofs could cool cities
Painting urban roofs white could effectively counteract some of the urban heat-island effect and even lower greenhouse gas emissions in cities, reports a new study in Geophysical Research Letters. “Our research demonstrates that white roofs, at least in theory, can be an effective method for reducing urban heat,” says Keith Oleson, the lead author of […]
Discovering nature’s wonder in order to save it, an interview with Jaboury Ghazoul

First in a series of interviews with participants at the 2009 Association of Tropical Biology and Conservation (ATBC) conference. Sometimes we lose sight of the forest by staring at the trees. When this happens we need something jarring and eloquent to pull us back to view the big picture again. This is what tropical ecologist […]

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