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topic: Seabirds
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Plastic-eating seabird chicks show signs of organ failure and cognitive decline
- Seabirds and other marine wildlife are ingesting an increasing amount of plastics as pollution in the ocean rises.
- A recent study finds that sable shearwater chicks that consume high levels of plastics have abnormal levels of certain proteins in their blood, including some that suggest tissue damage, multiple organ failure and cognitive decline, despite showing no signs of obvious ill health.
- Conservationists say the study’s findings in young chicks show plastics could threaten entire populations of sable shearwaters.
- Although the study’s findings are limited to a single species, they raise concern for other marine life, say conservationists, who urge immediate action to reduce marine plastic pollution.
A bird last seen by Darwin 190 years ago reappears on a Galápagos island
The Galápagos rail, a small, black, ground bird, hadn’t been seen on Floreana Island in the Galápagos since 1835, when Charles Darwin first described it. That changed recently when researchers monitoring birds on Floreana recorded the rail at three different locations. These new sightings after 190 years are likely the result of efforts to eradicate […]
Initiative sets sights on rewilding three New Zealand islands
Three New Zealand islands will join an international initiative to remove invasive species and restore native wildlife. With the addition of Maukahuka (Auckland) Island, Rakiura (Stewart) Island and Chatham Island, the Island-Ocean Connection Challenge (IOCC) will have 20 ongoing projects aimed at restoring and rewilding 40 globally significant island-ocean ecosystems by 2030. “New Zealand’s three […]
Wisdom, the world’s oldest known bird at 74, has a new chick
Wisdom, the world’s oldest known wild bird, made headlines recently for laying an egg with a new partner, her first egg in four years. The egg has now hatched, and Wisdom, a Laysan albatross (Phoebastria immutabilis), or mōlī in Hawaiian, was spotted caring for her chick, the U.S. Fish and Wildlife Service (USFWS) Pacific region […]
World’s tiniest transmitter finds nesting area of rarest migratory shorebird
Using the world’s smallest known satellite transmitter, conservationists were able to track a spoon-billed sandpiper, thought to be the world’s rarest migratory shorebird. The transmitter revealed new stopovers and nesting areas for an individual known as K9. “K9 led us to a newly discovered breeding location and habitat, which could be a game-changer for Spoon-billed […]
Atlantic puffins are perilously attracted to artificial light, new study shows
- When they make their first journey into the ocean, fledgling Atlantic puffins are prone to being stranded on land, imperiling them. For years, scientists have wondered what leads to these strandings.
- A new study provides experimental evidence to show that artificial light lures young puffins toward land, contributing to strandings.
- The study found pufflings don’t have a strong preference for any particular light source or color. However, once stranded, they move more under darkness and high-pressure sodium lights than under LED lights.
- Reducing artificial lights along the coast and offshore could save puffin lives, say conservationists, as Atlantic puffin populations are decreasing in parts of Europe. It can also save other threatened seabirds, such as Leach’s storm petrel found off Canada’s coast.
Wisdom the 74-year-old albatross lays an egg with new mate
Wisdom, the world’s oldest known wild bird, has laid an egg, this time with a new partner. She is a Laysan albatross (Phoebastria immutabilis), or mōlī in Hawaiian, and this is her first egg in four years, the U.S. Fish and Wildlife Service (USFWS) Pacific region said in a statement on X. “She did it […]
Microplastics are sickening and killing wildlife, disrupting Earth systems
- Animals across the spectrum of life are eating, breathing and ingesting plastics that leach toxic chemicals and have been shown to alter the function of organs and even cells in humans. Petroleum products — mostly oil and natural gas — are plastic’s base ingredient.
- As plastic breaks down to micro and nano size, it easily enters the bodies of all living things. It takes 500-1,000 years for plastic to break down, and scientists now question whether it ever fully degrades.
- Health studies on wildlife are extremely difficult and costly, but plastics are thought to threaten living thing, from zooplankton, insects, rodents, rhinos and frogs to clams, whales, snakes, wildcats and a host of migratory animals.
- Next week, the world’s nations meet to hopefully finalize a U.N. plastics treaty. After a brief unexplained policy flip-flop, the Biden administration continues siding with Russia, Iran and other fossil fuel-producing nations, and with the petrochemical industry, in opposing binding regulations limiting global plastics production.
Shorebird populations drop globally, some by a third: Report
Sixteen shorebird species have been reclassified to higher threat categories as the global population of migratory shorebirds across the world saw a substantial decline, according to the latest update to the IUCN Red List of Threatened Species. Conservation partnership BirdLife International, which helps examine the status of the world’s birds for the IUCN Red List, […]
Lesser noddy sighting stirs up birding community in Bangladesh
- In September, near Bangladesh’s Sonadia Island, an ornithologist and a birdwatcher recorded the sighting of lesser noddies, a seabird species never seen in Bangladesh before.
- Lesser noddies are tropical terns known to be confined to the Indian Ocean.
- Experts say it is unknown why lesser noddies traveled to Bangladesh, and predict that they will soon return to their original habitats after this temporary stopover.
Bird-watching with drones? Might want to watch your distance, study says
As researchers and wildlife enthusiasts increasingly use drones to watch birds, a new study has come out with guidelines for best drone operating practices that minimize disturbance. “This study represents an important first step in understanding wildlife responses to drones and promoting ethical considerations in the use of new technologies in wildlife monitoring,” Meredith Palmer, […]
Birds caught in the eye of Hurricane Milton
Hurricane Milton, one of the strongest Atlantic hurricanes on record, is expected to hit the Gulf Coast of central Florida in the U.S. on Oct. 9. Hurricane Milton follows on the heels of Hurricane Helene, which devastated parts of the Southeast just two weeks earlier. Both storms coincide with the fall migration of birds in […]
Animal apocalypse: Deadly bird flu infects hundreds of species pole-to-pole
- The world is currently seeing the fastest-spreading, largest-ever outbreak of H5N1, a highly contagious, deadly strain of avian influenza. Scientists say this virus now presents an existential threat to the world’s biodiversity, with the risk to humans rising as it continues to leap the species barrier, reaching new host species.
- H5N1 has already impacted at least 485 bird species and 48 mammal species, killing seals, sea otters, dolphins, foxes, California condors, albatrosses, bald eagles, cougars, polar bears and a zoo tiger. Since it broke out in Europe in 2020, this virus has spread globally. Carried by birds along migratory pathways, it has invaded six continents, including Antarctica.
- This current H5N1 animal pandemic (or panzootic) was caused by humans: A mild form of avian flu carried by wild birds turned deadly when it infected domestic poultry. Many industrial-scale poultry farms adjoin wetlands where migrating birds congregate, facilitating rapid spread.
- The toll on some bird and mammal populations has been devastating. With continued outbreaks, some imperiled species could be pushed to the brink, with wildlife already fighting to survive against a changing climate, disappearing habitat and other stressors.
On Kaho’olawe, new technology could restore a sacred Hawaiian island
- The small Hawaiian island of Kaho‘olawe is a sacred site for Indigenous Hawaiians, who used it for navigational training, religious ceremonies, and fishing.
- But the island has faced decades of ecological destruction due to invasive plants and animals, erosion, and bombings as a test site by the U.S. military.
- A new conservation project has successfully tested a novel method using AI-equipped camera traps and an aerial drone to collect images of invasive cats, which have destroyed the island’s seabird populations, in dangerous and difficult-to-access parts of the island.
- But funding for the work on Kaho‘olawe remains scarce, and the drone project is now on hold as local organizations seek further funding to deal with the feral cats.
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.
‘Catastrophic breeding failure’ for penguins as Antarctic sea ice vanishes
- Researchers found that a lack of sea ice around Antarctica’s Bellingshausen Sea led to “unprecedented” breeding failure in four of five emperor penguin colonies.
- Sea ice cover in Antarctica has been experiencing record lows, which could spell disaster for the future of this iconic Antarctic species.
- Previous estimates have suggested that if current rates of global warming persist, more than 90% of emperor penguin colonies would be “quasi-extinct by the end of the century.”
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.
Seabird conservation mostly works, comprehensive new data set shows
- Researchers compiled a data set of seabird restoration projects, including those that used translocation and social attraction, from around the world.
- Ornithologist Stephen Kress pioneered translocation and social attraction, but these methods have been used more than 850 times in the last 70 years — mostly to great success.
- Experts say seabirds are one of the most threatened bird groups in the world, and translocation and social attraction can help protect them against threats like invasive species and the impacts of climate change.
What’s black and white and spins? Wind turbines that don’t kill birds
- A new study suggests a way to stop seabirds from colliding with wind turbines: painting a black-and-white pattern on all three blades and the pylon to produce a flickering effect.
- This strategy has yet to be tested or implemented, but experts believe it has promise and would create its desired effect.
- However, getting approval for painting wind turbines can be difficult, and this mitigation strategy might generate the unintended effect of displacing seabirds, one expert says.
- It’s estimated that wind turbines kill thousands of birds in the U.K. alone.
‘Plasticosis’: the new disease killing seabirds and likely many other species
- Scientists have identified a new fibrotic disease called “plasticosis” in flesh-footed shearwaters, a species that inadvertently consumes plastic.
- They found that plasticosis was even present in shearwaters with only a small quantity of plastic in their stomachs.
- While this plastic-related disease has thus far only been identified in flesh-footed shearwaters, experts say that nearly every organism — including humans — is being impacted by plastic in some way.
After decades away, rare Peruvian seabird nests on island freed of invaders
- Chañaral Island off the coast of Chile used to be a prime nesting site for the Peruvian diving petrel, but the species largely disappeared from the island after the introduction of invasive rabbits and foxes.
- In 2013, researchers and wildlife managers eradicated these invasive species from Chañaral, and in 2019, a team began to lure the diving petrels back to the island by creating artificial nests and playing petrel calls.
- These efforts paid off: in November 2022, a Peruvian diving petrel chick hatched in a naturally dug burrow, generating optimism for the species’ future on the island.
Avian flu hits Peru, killing thousands of sea birds and infecting some marine mammals
- H5N1, a highly pathogenic avian influenza virus carried generally by wild birds, has arrived in Latin America, causing unprecedented mortality in sea bird colonies along the west coast.
- The virus has killed tens of thousands of sea birds in Peru alone, including some species that are considered endangered in the country, and scientists worry other vulnerable species like the Andean condor might also become infected.
- Hundreds of sea lions and a dolphin have also been infected, which raises concerns regarding transmission to humans and is especially worrisome if it is confirmed that mammals can infect each other.
- The outbreaks also threaten Peru’s guano industry, which provides affordable fertilizer to many small-scale farmers in the region, and could expose people harvesting guano to H5N1.
For threatened seabirds of NE Atlantic, climate change piles on the pressure
- A new report shows that puffins and other seabird species in the Northeast Atlantic are at risk from climate change.
- It warns most seabird species would lose a substantial amount of their current breeding sites and available prey due to climate change, but each species has unique challenges.
- The authors describe potential interventions that conservation experts can enact to protect the species, including the relocation of seabird breeding sites, supplementary feeding, and providing resources that help seabirds deal with extreme weather events such as flooding and heat waves.
Plastic impacts a grossly underestimated ‘one-two punch’ for seabirds: Study
- That plastic pollution is harmful to marine life, including seabirds, is well known, but recent research finds that the impacts may be “grossly underestimated” and that plastics can affect multiple organs.
- A new study investigated plastic ingestion by flesh-footed shearwaters and found that — as was determined in past research — initial consumption can harm the stomach. New evidence also showed that impacts are far more expansive, and may cause ongoing health problems distributed throughout body organs.
- Some forms of tissue damage detected by the new research suggest that plastic particles may also act as chemical pollutants, though this requires further study.
- Plastic pollution is a massive growing problem for the world’s oceans and marine life. Earlier this year, researchers announced that the global planetary boundary for novel entities — including plastics — has been surpassed, threatening Earth’s operating systems and life as we know it.
Climate change and overfishing threaten once ‘endless’ Antarctic krill
- Antarctic krill are one of the most abundant species in the world in terms of biomass, but scientists and conservationists are concerned about the future of the species due to overfishing, climate change impacts and other human activities.
- Krill fishing has increased year over year as demand rises for the tiny crustaceans, which are used as feed additives for global aquaculture and processed for krill oil.
- Experts have called on the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), the group responsible for protecting krill, to update its rules to better protect krill; others are calling for a moratorium on krill fishing.
- Antarctic krill play a critical role in maintaining the health of our planet by storing carbon and providing food for numerous species.
Rachel Carson’s ‘Silent Spring’ 60 years on: Birds still fading from the skies
- Rachel Carson’s “Silent Spring” catalyzed the modern environmental movement and sparked a ban on DDT in the U.S. and most other nations, though DDT has since been replaced by a growing number of other harmful biocides.
- Now, 60 years later, birds may face more threats than any other animal group because they live in — or migrate through — every habitat on Earth. Birds are impacted by land-use changes, pollution (ranging from pesticides to plastics), climate change, invasive species, diseases, hunting, the wildlife trade, and more.
- The 2022 update to the “State of the World’s Birds” report notes winners and losers amid increasing human alteration of the planet, but documents a continuing downward trend.
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.
In lockdown’s calm, glossy ibis finds prime nesting conditions in Sri Lanka
- The glossy ibis, a migratory bird that winters in the tropical island of Sri Lanka, has been observed nesting there for the first time in nearly 150 years.
- Sri Lanka is a key stopping point for nearly 250 species of migratory birds, many of which have in recent years appeared to be staying over for longer or visiting in larger numbers.
- While climate change has been identified for changes in the migratory behavior of many species, in this case it appears that local conservation efforts have succeeded in attracting bird species that historically used to frequent Sri Lanka in large numbers.
- Bundala National Park, where the glossy ibis flock is nesting, has been shut to visitors since mid-May because of the COVID-19 pandemic; once it reopens, park managers plan to keep visitors away from the nesting site so as not to disturb the birds.
Decade after BP Deepwater Horizon spill, oil drilling is as dangerous as ever
- Ten years ago, the BP Deepwater Horizon exploratory rig exploded, killing 11 people and initiating the largest oil spill in the history of the United States.
- Nearly 5 million barrels of oil spilled into the Gulf of Mexico, causing catastrophic damage to the ecosystem and economy of the region.
- A newly published report by the nonprofit Oceana looks back at how this spill happened, the resulting ecological and economic impacts, and if this catastrophe has changed government or oil industry approaches to offshore drilling.
- Poor government oversight and inadequate safety culture paved the way for the BP Deepwater Horizon explosion. Now, a decade later, it appears these conditions, the prerequisites for disaster, have not improved.
Bid to get ‘aquatic wild meat’ off the menu and under protection
- The term “aquatic wild meat,” or “marine bushmeat,” refers to the hunting of marine mammals, reptiles, seabirds and now some sharks and rays.
- The hunting takes place all over the world and has increased in recent years as small-scale fishers have lost access to fish and other marine resources.
- Last week, delegates representing more than 80 countries took steps to address the issue of aquatic wild meat at the Convention on the Conservation of Migratory Species of Wild Animals conference in Gandhinagar, India.
- Other outcomes of the conference included adding 10 new species to the convention’s protected lists, including the jaguar and Asian elephant, recognizing the culture of wild animals, and calling for migratory species to be considered in national climate and energy policies.
Tool use in puffins may point to ‘underestimated’ intelligence in seabirds
- A camera trap in Iceland captured video of an Atlantic puffin using a stick to scratch itself.
- The discovery, along with a similar observation in Wales in 2014, is the first evidence of tool use in seabirds.
- The findings suggest that seabirds like puffins may be more intelligent or possess greater problem-solving skills than once thought.
Vanishing sea ice in the Arctic could shake up seabird migrations
- Researchers have developed a framework to aid in understanding the changes to seabird migration that could result from the loss of Arctic sea ice due to climate change.
- The team found that one species, the little auk, would expend about half as much energy by shifting its migration from the North Atlantic to the North Pacific, rather than their traditional migration or if they just stayed put in the high Arctic.
- The team also mined the scientific literature and found 29 bird species with the potential for a similar shift in their migratory routes.
AI and public data identify fishing behavior to protect hungry seabirds
- In an effort to reduce albatross deaths as bycatch of longline fishing, Global Fishing Watch (GFW) and Birdlife International researchers are using machine learning models to determine if fishing vessels are setting their lines at night, a recommended technique to avoid accidentally killing albatrosses.
- Mapping fishing vessel behavior involved training new models to recognize when a long-line ship is setting its line.
- This new application broadens the range of GFW’s toolkit to combine machine learning and public data to protect marine wildlife and better manage fisheries.
- Results of the new algorithm formed the basis of a January 2019 regulatory decision by the South Pacific Regional Management Organization.
Bans on the bird trade in South America yield mixed results
- After decades of rampant exports, several South American countries banned the international trade of wild-caught birds.
- In some cases, in concert with conservation, the bans have helped bird populations recover, leading several countries to invest in birdwatching tourism.
- However, the bans have also led to a significant illegal trade on the continent and a shift of the economic benefits from the wild bird trade to other countries.
Feed a fishery, starve a seabird
- Industrial fisheries increased their share of fish taken by 10 percent, while seabirds’ take dropped by nearly 20 percent, between 1970-1989 and 1990-2010, new research has found.
- The study mapped out 40 years of data comparing the takes of seabirds and fisheries during that timeframe.
- Scientists say that seabirds, which also face threats from pollution, plastic garbage and possible entanglements, could also face starvation as a result of the competition with large-scale fisheries for the same resource.
‘Drifters of opportunity’: Seabirds track energy in tidal currents
- A recent study used location data from GPS-tagged seabirds called razorbills to track currents in the Irish Sea.
- When a team of biologists compared the movements of resting birds on the surface of the water with a mathematical model that lays out the currents, they found that the birds provided solid information on the speed and direction of the flow of water.
- The researchers suggest that similar research using data from resting seabirds could help identify areas for the harvest of renewable tidal energy.
Plant communities roar back after rat removal from Pacific islands
- In a multi-year study, scientists found that tree seedlings were more than 5,000 percent more abundant after rats were eradicated from Palmyra Atoll, a group of 25 small islands in the Pacific Ocean.
- Invasive rats, brought by ships over the past few centuries, eat tree seedlings and vegetation, in addition to driving down seabird numbers.
- Managers eradicated the islands’ rats in 2011, and within a month, seedling densities had increased.
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.
Let there be light — but be mindful of the wildlife
- Artificial lights affect biological processes, such as plant photosynthesis, animals’ orientation and migrations, and human circadian rhythms. As communities replace older lights with energy-efficient light-emitting diode (LED) lamps, they must weigh the needs of people with damage to local wildlife.
- Researchers have developed an tool that categorizes LED lamps by their output, energy efficiency and predicted impacts on wildlife, people and the darkness of the night sky.
- The researchers predict that filtered yellow-green and amber LEDs should have lower effects on wildlife than high-pressure sodium lamps, and that blue-toned light will affect wildlife — including birds, insects, fish, and sea turtles — more than orange- and yellow-toned light.
- Their results are presented on an updatable website to guide lighting designers and local government officials in installing lighting technologies that are both energy-efficient and less likely to harm wildlife.
Warmer sea surface temperatures imperil the survival of juvenile albatross: Study
- New research finds that increased sea surface temperatures can affect the survival of juvenile albatross during their first year at sea and lead to reduced population growth rates.
- Ecologists in the US and France examined how climate change and functional traits — attributes like body size and foraging habits that define a species’ role in the broader ecosystem — impact population dynamics of the black‐browed albatross (Thalassarche melanophris) by studying 200 breeding pairs of the long‐lived, migratory seabirds at Kerguelen Island in the southern Indian Ocean.
- Changes in sea surface temperature during the breeding season were found to have little impact on black-browed albatross population growth rates, but higher sea surface temperatures in late winter did have a significant impact because of their effect on the survival of juveniles, according to the study.
Seabird secrets revealed by bioacoustics in New Zealand
- Megan Friesen is a behavioral ecologist who is currently working with the Northern New Zealand Seabird Trust to examine the breeding behaviors of a Pacific seabird species called Buller’s shearwater.
- In this Field Notes segment, Friesen explains why bioacoustics are so important to the research she and the Northern New Zealand Seabird Trust are doing, and plays recordings of the birds from both of the islands where it breeds.
- Plus the top news and inspiration from nature's frontline!
Drones enable fast, accurate wildlife counts, study shows
- Unmanned aerial vehicles (UAVs) have great potential for surveying wildlife, especially species that assemble in large numbers and that are easily disturbed by human presence.
- Scientists creatively combined high-tech UAVs and computer-vision algorithms with rubber ducks to assess the potential of aerial imagery to count seabirds relative to traditional survey methods.
- They found that both human and semi-automated computer counts of colony-nesting birds from UAV-derived images were more accurate and less variable than counts made by observers on the ground.
- Combining UAV-derived imagery with artificial intelligence can help scientists more accurately estimate population sizes with less variability.
Canary in the Arctic coal mine: warming harms migrating red knot
- The Arctic is warming faster than any other part of the world, and its ecosystems are changing quickly, with shifts in the timing of insect hatches, plant growth and more.
- Those changes are impacting migratory species that move between the Arctic, the tropics and temperate zones. One such species is the red knot, a shorebird whose Arctic food supply and stored energy have been reduced due to climate change.
- A recent study found that young red knots (Calidris canutus) have shrunk by about 15 percent since 1985. This shrinkage includes a smaller beak which jeopardizes the juvenile birds’ survival as they dig for bivalves.
- Researchers have detected a variety of global warming risks to species as they move from tropical wintering and Arctic summering grounds, and along migratory routes, including shrinking tundra; rising seas; increasingly extreme weather; ocean acidification; and changes to specialized environments, such as temperate stopover havens.
Elusive seabird breeding grounds discovered in Chilean desert
- A Chilean expedition into the Atacama Desert has located the first known breeding grounds of the ringed storm-petrel, a seabird of unknown population size that is endemic to the western coast of South America.
- The nests, located in natural cavities in the desert’s rocks and salt pans, were found 70 kilometers (44 miles) from the Pacific coast, where the birds feed and spend most of their time.
- Chilean scientists see the discovery as critical to estimating the stability and size of the ringed storm-petrel population and determining the threat posed by mining and proposed wind farms in the region.
Ecological trap ensnares endangered African penguins
- Juveniles of the Western Cape population of African penguins, an IUCN-listed endangered species, still frequent a subpar hunting ground, even though other options are within reach.
- This population of penguins has declined by 80 percent in recent decades.
- The current research projects that Western Cape penguin numbers are half of what they would be without this ecological trap.
Seabird numbers down 70 percent since 1950
- A recent study shows that marine systems are apparently becoming gradually less able to support seabirds.
- The study focused on populations that scientists had monitored at least five times between 1950 and 2010, which accounted for 19 percent of the world’s seabird population, encompassing 162 species.
- Despite many threats, there are a number of conservation measures that can be taken to protect seabird colonies.
Russia bans driftnet fishing, a reprieve for seabirds and marine mammals
Tufted puffins in the Alaska Maritime National Wildlife Refuge. The species is commonly caught in driftnet salmon fishing gear in the waters off Russia’s far eastern shore. Photo credit: Steve Ebbert, USFWS. On July 1, President Vladimir Putin signed a bill into law banning driftnet fishing in Russian waters. Driftnets, floating walls of net that […]
Pollutants threaten long-term survival of wandering albatross
Seabirds, aerial ocean predators, are known to amass harmful contaminants over their lifespan. Scientists believe this exposure to pollutants, such as blood mercury (Hg), cadmium (Cd), and persistent organic pollutants (POPs), negatively impacts survival rates as well as reproduction, therefore contributing to large-scale population declines. Although previously these assumptions were largely theoretical, recent research in […]
Ocean’s 15: meet the species that have vanished forever from our seas
- In the last 500 years, the oceans have suffered far fewer extinctions than on land&.
- According to a recent study in Science, 15 animals are known to have vanished forever from the oceans while terrestrial ecosystems have seen 514 extinctions.
- The researchers, however, warn that the number of marine extinctions could rise rapidly as the oceans are industrialized.
Rat eradication needed to save seabird colony
Although only a nuisance in your home, on an isolated island chain (archipelago) off the northeastern coast of Brazil, rats pose a threat to the red-billed tropicbird (Phaethon aethereus). The seabird nests in the remote Abrolhos National Park, but two species of invasive rats prey on its eggs and young: the house rat (Rattus […]
Saving Peru’s sea turtles and marine birds: conservationists and fishermen partner to tackle bycatch
Joanna Alfaro Shigueto will be speaking at the Wildlife Conservation Network Expo in San Francisco on October 11th, 2014. Marine conservationists often view fisheries as an enemy of sorts, vacuuming up fish with little thought to the long-term consequences and using equipment that also ends up killing other species, i.e. bycatch like sea turtles and […]
Collateral damage: new findings shed light on the full impact of commercial fishing
Aside from reducing the populations of the species sought for capture, commercial fisheries are also killing thousands of non-target creatures such as sharks, albatross, and sea turtles, collectively referred to as “bycatch.” However, the full extent of the problem is only beginning to be grasped. In an attempt to fill the many knowledge gaps when […]
Over 350 species added to the IUCN Red List’s threatened categories in the last six months
The number of threatened species on the IUCN Red List has grown by 352 since this summer, according to an update released today. Currently, 21,286 species are now listed as threatened with extinction out of the 71,576 that have been evaluated. The new update comes with both good and bad news for a number of […]
Nearly half a million seabirds die in gillnets every year, but solutions exist
A recent study from the Biological Conservation journal brings shocking news: every year across the globe, an estimated 400,000 seabirds are killed by gillnets. Gillnets, a common term for any net used to entangle and catch fish, are used all over the world, and at any depth. These nets, whether used in subsistence or commercial […]
No place like home: scientists discover that male crested penguins head home earlier than females
Male crested penguins are hard workers – especially when it comes to their elaborate breeding ritual. After gathering in massive colonies to mate, they find and establish a nesting site, help incubate the eggs females lay, and then guard the chicks after they hatch. Male crested penguins have also been known to arrive at their […]
Conservationists work to give South Georgia back to the birds
A team on South Georgia has successfully completed the world’s largest rodent eradication in an effort to rid the British territory of millions of rats and mice. Against the backdrop of an approaching Antarctic winter between February and May, three helicopters encountered perilous flying conditions while peppering the southern Atlantic island with 183 tonnes of […]
Seabirds face big problems as sea levels rise
Migratory shorebird populations are at great risk from rising sea levels due to global climate change, warns a recent paper in Proceedings of the Royal Society B. These birds play an important role in the distribution of nutrients within wetland and coastal ecosystems, and their loss could have unknown consequences for the rest of the […]
Famed bird reappears after 400,000 miles of flight
A migratory shorebird that has flown more than 400,000 miles has reappeared once again. The bird, dubbed “B95” after the number on his leg band or “Moonbird” for the distance he has flown over his lifespan, is a rufus red knot (Calidris canutus rufus) that scientists have been tracking for 19 years. Each May his […]
Industrialized fishing has forced seabirds to change what they eat
The bleached bones of seabirds are telling us a new story about the far-reaching impacts of industrial fisheries on today’s oceans. Looking at the isotopes of 250 bones from Hawaiian petrels (Pterodroma sandwichensis), scientists have been able to reconstruct the birds’ diets over the last 3,000 years. They found an unmistakable shift from big prey […]
Scientists discover that marine animals disperse seagrass
Lesser known than coral reefs, marine seagrass ecosystems are rich in biodiversity and are powerhouses when it comes to sequestering carbon dioxide. Yet, much remains unknown about the ecology of seagrass beds, including detailed information on how seagrass spread their seeds and colonize new area. Now a recent study in Marine Ecology Progress Series documents […]
Are seagulls killing whales in Patagonia?
It sounds ludicrous, but it could just be true: scientists say seagulls may be responsible for hundreds of southern right whale mortalities off the Argentine coastline. Since 2003, scientists have documented the deaths of 605 southern right whales (Eubalaena australis) near Península Valdés which the whales use as a nursery. Notably, 88 percent of these […]
Above the ocean: saving the world’s most threatened birds
This post is an expanded version of an article that appeared in August on Yale e360: Easing The Collateral Damage Fisheries Inflict on Seabirds.
Penguins face a slippery future
Adelie penguins hunting for food. Photo by: J. Weller. Click to enlarge. Pablo Garcia Borboroglu will be speaking at the Wildlife Conservation Network Expo in San Francisco on October 13th, 2012. Penguins have spent years fooling us. With their image seemingly every where we turn—entertaining us in animated films, awing us in documentaries, and winking […]
Cute animal pictures of the day: Humboldt penguin chick meets water
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Keeper, Vicky Fryson, helps a Humboldt penguin chick, Pickle, test the water for the first time. Photo by: Zoological Society of London’s (ZSL) London Zoo. Humboldt penguins was found along the western edge of South America in Chile and Argentina. They face a barrage of threats including overfishing, drowning as bycatch, El Nino conditions that […]
Over 500 dead penguins wash up in Brazil, cause under investigation
Magellanic penguin in Patagonia. Photo by: Michaël Catanzariti. In recent weeks, 512 Magellanic penguins (Spheniscus magellanicus) have washed up dead in Brazilian state of Rio Grande do Sul. Although badly composed, researchers do not see any obvious signs why the penguins died, especially in such numbers. Marine biologists are currently performing autopsies on carcasses and […]
B95, the great survivor
B95, the remarkable rufus red knot who has flown from the Earth to the moon in terms of distance. Photo by: Jan Van de Kam. He is so long-lived that he has surpassed all expectations, touching hearts throughout the American continent, bringing together scientists and schools, inspiring a play and now even his own biography. […]
Why bird droppings matter to manta rays: discovering unknown ecological connections
Beach on Palmyra Atoll. Ecologists have long argued that everything in the nature is connected, but teasing out these intricate connections is not so easy. In fact, it took research on a remote, unoccupied island for scientists to discover that manta ray abundance was linked to seabirds and thereby native trees. Working in the U.S. […]
Small marine fish need protection too
It has long been known that overfishing has decimated some populations of tuna, shark, cod, as well as other big predatory fish; however two recent studies have pointed out that overfishing is also threatening small fish such as anchovies, sardines, mackerel, herring, menhaden, and krill. Although tiny, these species are vital to marine ecosystems since […]
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