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News articles on extinction
Mongabay.com news articles on extinction in blog format. Updated regularly.
7 steps to solve the global biodiversity crisis
(08/11/2008) Many biologists believe Earth is entering a sixth mass extinction event, one that has is the direct of human activities, including over-exploitation, habitat destruction and introduction of alien species and pathogens. Climate change — largely driven by anthropogenic forces — is expected to soon increase pressure on Earth's biodiversity. With population and per-capita consumption expected to grow significantly by the mid 21st century, there seems little hope that species loss can be slowed. Nevertheless, writing in the journal PNAS, Stanford biologists Paul R. Ehrlich and Robert M. Pringle suggest seven steps to help improve the outlook for the multitude of species that share our planet.
20% of the Brazilian Amazon's tree species to go extinct
(08/11/2008) A new study estimates the number of trees that will go extinct in the Brazilian Amazon due to habitat loss.
Three American mussel species lost to extinction
(08/10/2008) After a five year review, the U.S Fish and Wildlife Service has asked to take three mussels species off the Endangered Species List due to the belief that the mussels are extinct. The three species were all native to the Tennessee River and are thought to have gone extinct due to drastic changes in water conditions, including pollution and dams.
48% of primates threatened with extinction
(08/05/2008) 48 percent of the world's primate species are at risk of extinction, according to the first comprehensive review of the world's primates since 2003. The results were released as an update to the IUCN Red List at the 22nd International Primatological Society Congress in Edinburgh, Scotland.
Moving species may be only way to save them from climate change
(07/17/2008) Desperate times call for desperate measures, according to a new paper in Science. conservation scientists from the US, the UK, and Australia are calling for the consideration of a highly controversial conservation technique: assisted migration. According to the policy piece, species would be relocated to sites "where they do not currently occur or have not been known to occur in recent history".
Birds face higher risk of extinction than conventionally thought
(07/14/2008) Birds may face higher risk of extinction than conventionally thought, says a bird ecology and conservation expert from Stanford University. Dr. Cagan H. Sekercioglu, a senior research scientist at Stanford and head of the world's largest tropical bird radio tracking project, estimates that 15 percent of world's 10,000 bird species will go extinct or be committed to extinction by 2100 if necessary conservation measures are not taken. While birds are one of the least threatened of any major group of organisms, Sekercioglu believes that worst-case climate change, habitat loss, and other factors could conspire to double this proportion by the end of the century. As dire as this sounds, Sekercioglu says that many threatened birds are rarer than we think and nearly 80 percent of land birds predicted to go extinct from climate change are not currently considered threatened with extinction, suggesting that species loss may be far worse than previously imagined. At particular risk are marine species and specialists in mountain habitats.
1/3 of corals face extinction
(07/10/2008) Nearly one-third of reef-building corals are vulnerable to extinction, according to an assessment of 845 species of coral. Rising temperatures, increased incidence of disease, and human disturbance are driving the trend.
New math shows that threat of extinction is underestimated globally
(07/07/2008) For some species the odds of survival may have changed. According to a new study current extinction models have underestimated the threat of extinction by not factoring in differences among individuals in a population. Such differences include the ratio of males to females, size and health of animals, and individual behvaioral patterns. A study conducted by Brett Melbourne of University of Colorado, Boulder and Alan Hastings of the University of California, Davis, shows that the new model speeds the extinction time for some species up to 100 times what was previously thought.
Cuteness determines whether the public will support saving species from extinction
(07/07/2008) How much would you pay to prevent the extinction of the humpback whale? The giant panda? Or how about the red-cockaded woodpecker, the striped shiner, or the water vole? With finite funds and increasing threats to species, should such decision be made on popularity, perceived utility, or ecology?
Welcome to the Jungle: An Introduction to the End of the Industrial Era
(07/03/2008) The existing state of industrial civilization has brought our planet and global populations into a worldwide crisis unprecedented in the history of life on Earth. Human activities have sent many living systems into decline or collapse, brought about the 6th mass extinction of biodiversity, upset our planet's biogeochemical cycles, and rapidly and dangerously altered our climate. We stand at the bifurcation point of our species: whether or not we are able to question the maladaptive behvaiors which have brought about these travesties and adapt on a global scale will determine the course of human evolution and the survival of a multitude of living organisms with which we share this planet. As the only reflectively conscious organism to have existed, we also hold the fate of (reflective) sentience itself in our actions. I believe our chance at pulling ourselves out of this mess is through an analytical dissection of human nature and behvaior — to expose, extract, examine, revise and communicate the elements of our existence which drive us into maladaptive behvaiors followed by an application of technology and action grounded in a new and emerging understanding of humanity and our position in the biosphere.
Tropical biodiversity on "a trajectory toward disaster"
(06/26/2008) Despite recent debate over the extent of regenerating secondary forest cover, the effectiveness of protected areas and tropical extinctions protections, global biodiversity remains under great threat, warn scientists writing in the journal Frontiers in Ecology and the Environment.
Caribbean Monk Seal is officially declared extinct
(06/10/2008) The NOAA fish service has officially declared the Caribbean Monk Seal extinct. The seal--the first to go extinct by human causes--has not had a confirmed sighting for fifty-six year. Many scientists believe sightings that have followed the last confirmation were probably of Hooded Seals and not the Caribbean Monk.
Rainforest species particularly vulnerable to global warming
(06/08/2008) Tropical species may be particularly vulnerable to global warming due to their limited ability to adjust to high temperatures, warn scientists writing in the journal Science.
50 species per day discovered in 2006
(05/27/2008) 16,969 species were discovered in 2006 according to a report compiled by Arizona State University's International Institute for Species Exploration, the International Commission on Zoological Nomenclature, the International Plant Names Index, and Thompson Scientific.
Geriatric turtle sex only hope for world's rarest reptile
(05/21/2008) With only four individuals of the Yangtze giant softshell turtle left on Earth—one in the wild and three in captivity—conservationists have launched a desperate attempt to save the species from extinction.
Invasive Species: Toad-ally out of control
(05/18/2008) Throughout warm, wet climates around the world lurks a camouflaged combatant seldom known beyond those who experience first hand its awesome destructive powers. It is an ingeniously crafted destroyer equipped with a host of specially developed chemical toxins, a lightening fast attack, and the ability to easily navigate across both water and land. This devious tool is not a creation of human engineering or military research and development but a product of a much more ancient and refined process: evolution. And until human intervention it was neither ecologically harmful nor an invasive pest but a well-integrated part of ecosystems throughout South and Central America. Meet Bufo marinus — the cane toad: exemplary proof of how human short-sightedness and misuse of biological control agents often leads to the catastrophic mismanagement of our natural world in the form of a large, squat, hungry toad.
Global wildlife declines 30% in 30 years
(05/16/2008) In honor of Endangered Species Day, the Wildlife conservation Society (WCS) has released a list of twelve critically endangered species, which it considers the 'rarest of the rare'. The list spreads widely throughout the animal kingdom, including insects, mammals, birds, reptiles, amphibians, and fish.
New cures for human ailments under threat by global extinction crisis
(04/24/2008) In the film Medicine Man, a researcher in the Amazon discovers a cure for cancer in a rare ant. However, a logging company arrives at the wrong moment and, despite protestations from the main characters, the company destroys the tract of rainforest where the ant once survived.
New expedition seeks evidence for survival of the 'extinct' Baiji
(04/16/2008) The EDGE program, apart of the London Zoological Society, has sent an expedition to the Yangtze River to survey local fishermen for any evidence that the Baiji may still survive.
Humans, and global warming, responsible for extinction of mammoths
(03/31/2008) The combination of human hunting pressure and climate change was responsible for the extinction in woolly mammoths, claims new research published in the open-access journal PLoS Biology. Scientists have long debated whether climate change or human hunting were the more important driver in the demise of North America's megafauna towards the end of the last Ice Age. Now new modeling by David Nogues-Bravo, a biologist at the National Museum of Natural Sciences in Madrid, Spain, and colleagues supports the theory that synergistic effects of warming climate and new human predators drove mammoths to extinction.
No global warming link to dying frogs?
(03/25/2008) Scientists have fired another salvo in the heated debate over the role of climate change in the global decline of amphibians. Writing in the March 25 issue of PLoS Biology, a team of researchers led by Karen Lips of Southern Illinois University-Carbondale report finding "no evidence to support the hypothesis that climate change has been driving outbreaks of amphibian chytridiomycosis" -- a disease blamed for large-scale die-offs of amphibians. Other researchers have argued that climate shifts are worsening the outbreak of the fungal disease.
Half of Madagascar's amphibians may still await discovery
(03/11/2008) Madagascar is one of the most unique places on Earth for wildlife. When the public thinks of Madagascar's fauna most likely they think of one of the fifty species of lemur. Yet, Madagascar possesses a wealth of endemic wildlife outside of these unique prosimians. For example, to frog-lovers Madagascar is a paradise. The only amphibians living on Madagascar are frogs; the island is devoid of toads, salamanders, or newts. But what it lacks in other amphibians it makes up for in the number and beauty of its frogs. Currently, 240 frogs have been catalogued in Madagascar, 99 percent of which are endemic. Yet, amphibian expert Dr. Franco Andreone believes that, according to recent field studies, this may only be half of the frogs that actually live in Madagascar. Dr. Andreone believes the final tally could reach 500 species!
Saving forgotten species: An interview with Carly Waterman, Program Coordinator of EDGE
(02/28/2008) In January 2007 a new conservation initiative arrived with an unusual level of media attention. The attention was due to the fact that the organization was doing things differently—very differently. Instead of focusing their efforts on the usual conservation-mascots like the panda or tiger, they introduced the public to long-ignored animals: photos of the impossibly unique aye-aye and a baby slender loris wrapped around a finger appeared in newsprint worldwide. The new initiative EDGE (Evolutionary Distinct and Globally Endangered), launched by the Zoological Society of London, was not concerned with an animal's perceived popularity, rather the chose their focal species on a combined measurement of a species' biological uniqueness and its vulnerability to extinction. Consequently, they hoped to make celebrities out of animals (big and small) most people had never heard of: the hairy-eared dwarf lemur, anyone?
Widespread butterflyfish may go extinct due to global warming, pollution
(02/24/2008) The Chevroned Butterflyfish, a colorful fish found in tropical oceans around the world, faces extinction due to overexploitation, pollution and climate change, report researchers writing in the journal Behavioural Ecology and Sociobiology. Despite its widespread distribution, the species could be doomed by its specialized feeding habitats: the Chevroned Butterflyfish (Chaetodon trifascialis) feeds on only one type of coral.
The Panamanian golden frog declared extinct by BBC Natural History crew
(02/04/2008) A national symbol of Panama has been declared extinct by BBC filmmakers. The crew was in Panama to film the unique frog for David Attenborough's most recent series on reptiles and amphibians, entitled Life in Cold Blood. The filmmakers achieved their objective and captured the golden frog on film, including rarely seen behvaior.
New research refutes global warming's influence on amphibians' worst enemy
(01/30/2008) There is no doubt that global warming is having a negative effect on amphibians, but it is yet unclear whether or not a direct causal relationship exists between global warming and the spread of a specific fungal epidemic wreaking havoc on amphibian populations worldwide.
Photos: Top 100 most threatened amphibians named
(01/21/2008) Due to numerous factors--including habitat destruction, pollution, climate change, and chytrid fungus--amphibians are probably the most threatened taxon of species in the world. Dr Jonathan Baillie, head of the EDGE organization which has just established an amphibian program, stated that "tragically, amphibians tend to be the overlooked members of the animal kingdom, even though one in every three amphibian species is currently threatened with extinction, a far higher proportion than that of bird or mammal species." To help save these species on the brink, EDGE, apart of the Zoological Society of London, has compiled a list of the hundred most threatened and evolutionary distinct amphibians.
Recovery from worst mass extinction took 30M years
(01/20/2008) The recovery of complex ecosystems following history's worst mass extinction took 30 million years reports a study published last week in Proceedings of the Royal Society B.
As amphibians leap toward extinction, alliance pushes "The Year of the Frog"
(12/31/2007) With amphibians experiencing dramatic die-offs in pristine habitats worldwide, an alliance of zoos, botanical gardens and aquariums has launched a desperate public appeal to raise funds for emergency conservation measures. Scientists say that without quick action, one-third to one-half the world's frogs, toads, salamanders, newts and caecilians could disappear.
Migrating frogs fare poorly when habitat altered
(12/19/2007) Habitat loss and fragmentation are putting amphibians already threatened by climate change, pesticides, alien invasive species, and the outbreak of a deadly fungal infection at greater risk of extinction, reported a study published in Science last week.
Global warming will significantly increase bird extinctions
(12/06/2007) Where do you go when you've reached the top of a mountain and you can't go back down? It's a question increasingly relevant to plants and animals, as their habitats slowly shift to higher elevations, driven by rising temperatures worldwide. The answer, unfortunately, is you can't go anywhere. Habitats shrink to the vanishing point, and species go extinct. That scenario is likely to be played out repeatedly and at an accelerating rate as the world continues to warm, Stanford researchers say.
Amphibian extinction may be worse than thought
(10/31/2007) Amphibian extinction rates may be higher than previously thought, according to new DNA analysis that found more than 60 unrecognized species in the Guiana Shield of South America.
Scientists find treatment for killer frog disease
(10/29/2007) New Zealand scientists have found a treatment for a disease blamed for the death of millions of amphibians worldwide, according to a report from BBC News. However, at best, the cure would only be applicable to captive populations. The disease is killing many amphibians in apparently pristine habitats.
16,306 species threatened with extinction
(09/12/2007) 16,306 of 41,415 species on the IUCN Red List are threatened with extinction, reports the World conservation Union (IUCN). The total number of known extinct species now stands at 785, while a further 65 are only found in captivity or in cultivation. One in four mammals, one in eight birds, one third of all amphibians and 70% of the world's assessed plants on the 2007 IUCN Red List are considered at risk.
Rare Chinese river dolphin sighting in doubt
(09/01/2007) A prominent researcher is skeptical of last week's reported sighting of the baiji, the Chinese river dolphin declared extinct earlier this year, according to the New York Times. The sighting near Tongling city in Anhui Province -- widely reported in Chinese and Western media -- was captured on video.
"Extinct" baiji river dolphin spotted alive in China
(08/29/2007) An "extinct" baiji has been spotted alive in the Yangtze River, reports Chinese state media.
Scientists meet in Hungary to discuss saving dying frogs
(08/27/2007) Scientists are meeting this week in Budapest, Hungary to discuss last-ditch efforts to save the world's most threatened frogs from extinction.
European blood-sucker falls victim to global warming
(08/26/2007) Europe's only known land leech may be on the brink of extinction due to shifts in climate, report researchers writing in the journal Naturwissenschaften. The findings are significant because they suggest that "human-induced climate change without apparent habitat destruction can lead to the extinction of populations of cold-adapted species that have a low colonization ability," according to the authors.
U.S. to spend $27M on possibly extinct bird
(08/26/2007) The U.S. government plans to spend $27 million on the recovery efforts for a bird species that may already be extinct, reports the Associated Press.
Climate change claims a snail
(08/12/2007) The Aldabra banded snail (Rachistia aldabrae), a rare and poorly known species found only on Aldabra atoll in the Indian Ocean, has apparently gone extinct due to declining rainfall in its niche habitat. While some may question lamenting the loss of a lowly algae-feeding gastropod on some unheard of chain of tropical islands, its unheralded passing is nevertheless important for the simple reason that Rachistia aldabrae may be a pioneer. As climate change increasingly brings local and regional shifts in precipitation and temperature, other species are expected to follow in its path.
Extinction of the Yangtze river dolphin is confirmed
(08/08/2007) After an extensive six-week search scientists have confirmed the probable extinction of the baiji or Yangtze river dolphin. The freshwater dolphin's extinction had been reported late last year.
Frog killing diseases worse than thought in California
(08/06/2007) The deadly fungal disease that is killing amphibians worldwide can likely be spread by sexual reproduction reports a new study published in the early online edition of the journal Proceedings of the National Academy of Sciences. The findings suggest that protecting frogs and other amphibians from the pathogen will be more complicated than previously believed.
Dinosaurs' rise to dominance was a gradual
(07/19/2007) Dinosaurs' rise to dominance was a gradual rather than sudden, suggests new research published in Science.
Did Tasmanian Tiger survive extinction until 1950s?
(06/27/2007) A University of Adelaide project led by zoologist Dr Jeremy Austin is investigating whether the world-fabled Tasmanian Tiger may have survived beyond its reported extinction in the late 1930s.
Past global warming produced monster penguins
(06/25/2007) Scientists have discovered fossil remains of a giant species of penguin that lived some 40 million years ago in what is now Peru. Coupled with the finding of a smaller species from the same time period, the remains reveal that early penguins responded differently to natural climate change than scientists would have expected. The results are published in the PNAS Online Early Edition the week of June 25-29, 2007.
Sedentary, not migratory birds, face higher extinction risk
(06/24/2007) Sedentary birds face considerably higher risk of extinction than migratory birds, reports a new paper published in the journal Current Biology. The findings have implications for the conservation of increasingly endangered wildlife populations.
Highly carnivorous wolves in Alaska killed by global warming
(06/21/2007) Researchers have identified a previously unknown species of "highly carnivorous" wolf in Alaska that appears to have died off during the Pleistocene extinction some 12,000 years ago. The results are published in the June 21 online issue of Current Biology.
10-20% of birds extinct by 2100 due to global warming, deforestation
(06/04/2007) Ten to twenty percent of the world's terrestrial bird species could be threatened with extinction by 2100 due to climate change and habitat destruction reports a study published in the June 5 issue of the journal PLoS Biology. The numbers are in line with estimates published last year in The Proceedings of the National Academy of Sciences. Combining future projections on global warming, agricultural expansion and human population growth from the global Millennium Ecosystem Assessment with current geographic ranges of the world's 8,750 species of terrestrial birds, researchers Walter Jetz, David Wilcove, and Andrew Dobson estimate that 950 to 1800 species may be condemned to extinction by 2100.
Did asteroid wipe out America's first people?
(05/17/2007) An asteroid may have caused the near-extinction of North America's first humans, argues a series of studies to be presented May 24, at the American Geophysical Union's meeting in Acapulco, Mexico. Nature reports that while the theory has been discounted in the past, new research suggests that an comet or asteroid could have exploded above or on the northern ice cap some 13,000 years ago, plunging regional temperatures to plunge for the next 1000 years. The theory would also help explain the disappearance of the continent's large mammals, including woolly mammoths, American lions, and the saber tooth tiger.
Commercial hunting is a major threat to tropical rainforests
(05/01/2007) Commercial hunting is decimating wildlife populations across the tropics and may be one of the gravest threats presently facing rainforests, reports a series of studies published in the May issue of the journal Biotropica. The research reveals that large-scale loss of wildlife is already affecting forest health and regeneration.
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