amphibian crisis news from mongabay.com

Kihansi spray toad goes extinct in the wild

2009-11-04T22:03:00Z

This year's IUCN Red List has updated its assessment of the Kihansi spray toad, moving the species from Critically Endangered to Extinct in the Wild. With that another amphibian species has been lost to a combination of habitat loss and the devastating amphibian disease, the chytrid fungus. The Kihansi spray toad Nectophrynoides asperginis, which still survives in a number of zoos in the United States, had lived on just two hectares along the Kihansi gorge in Tanzania. The toad was specially adapted to the spray region of the Kihansi waterfall, which kept its small environment at a constant temperature and humidity.

Scientists uncover mystery of how frog plague kills its victims

2009-10-22T18:06:00Z

One hundred and twenty species of frogs are reported to have gone extinct since 1980 (although the number is likely even higher). While devastated by habitat loss, pollution, and climate change, a baffling disease may be the biggest factor behind the alarming extinctions of frogs. Called chytridiomycosis, the disease is caused by the microscopic fungus Batrachochytrium dendrobatidis which kills its tiny victims indiscriminately.

Freshwater species worse off than land or marine

2009-10-15T19:47:00Z

Scientists have announced that freshwater species are likely the most threatened on earth. Extinction rates for freshwater inhabitants are currently four to six times the rates for terrestrial and marine species. Yet, these figures have not lead to action on the ground.

South Korea's frogs have avoided amphibian crisis so far, an interview with Pierre Fidenci

2009-09-09T17:04:00Z

Frogs are on the edge. Blasted by habitat loss, pollution, and a terrible disease, the chytrid fungus, species are vanishing worldwide and those that remain are clinging to existence, rather than thriving. However, an interview with Pierre Fidenci, President of Endangered Species International (ESI), proves that there are still areas of the world where amphibians remain in abundance. South Korea is not a country that is talked about frequently in conservation circles. Other nations in the region attract far more attention, such as Malaysia and Indonesia. But it was just this neglect that drove Pierre Fidenci to visit the nation and survey the amphibians there.

Save the frogs, save ourselves

2009-09-04T17:33:00Z

Amphibians are going extinct around the globe. As a scientist specializing in frogs, I have watched dozens of species of these creatures die out. The extinction of frogs and salamanders might seem unimportant, but the reality couldn't be farther from the truth. Indeed, from regulating their local ecosystems, to consuming and controlling the population of mosquitoes and other insects that spread disease, to potentially pointing the way to new drugs for fighting diseases such as cancer or HIV-AIDS, the fate of these creatures is inexorably linked to our own.

Approximately 200 new frogs discovered in Madagascar threatened by political instability

2009-05-11T16:02:00Z

Amid the amphibian extinction crisis—where amphibians worldwide are disappearing due to habitat loss, pollution, and a devastating fungal epidemic—the Spanish Scientific Research Council (CSIC) has announced some good news. In a survey of the island-nation of Madagascar they have identified between 129 and 221 new species of frogs. The discovery of so many new species nearly doubles the island’s total number of frogs.

The story of ‘Save the Frogs Day’, April 28th, An Interview with Kerry Kriger

2009-04-26T18:36:00Z

Founder and director of SAVE THE FROGS!, Dr. Kerry Kriger is responsible for the first annual Save The Frogs Day on Tuesday, April 28th with events planned worldwide from the United States to Nepal, and Australia to China. “I’m continually amazed at the positive response it’s gotten. I thought of Save The Frogs Day one night last December when I was the only full-time SAVE THE FROGS! employee and I only had a couple part-time volunteers,” Kriger explains.

After disease engulfs island, rare mountain chicken frogs airlifted to safety

2009-04-23T16:13:00Z

In a rescue operation that sounds straight out of an action film, 50 mountain chicken frogs were airlifted from the Caribbean island Montserrat after the discovery of Chytridomycosis, a fungal disease that has wiped out amphibian populations worldwide. Already, hundreds of the critically-endangered mountain chicken frogs succumbed to the disease, which is thought to have made its way to the island in late 2008 or early 2009.

Mexican Salamanders Used in Neurology Labs May Go Extinct in Wild

2009-04-21T00:01:00Z

Ambystoma mexicanum, a salamander found only in the fetid canals surrounding Mexico City, faces extinction despite the efforts of researchers. As reported by Robert Koenig in the 5 December issue of Science, ecologists estimate that there are now only 100 of these salamanders per square kilometer in the canals, swamps, and lakes around the city – a rapid drop from their density of 600 per square kilometer in the 1980s. The population has dwindled as the system of waterways has dried up and become more polluted, and the salamander is now designated as critically endangered by the International Union for the Conservation of Nature (IUCN). Luis Zambrano of the National Autonomous University of Mexico is studying the axolotl to better understand its ecology, reproduction, and conservation. He’s working to identify the best areas of habitat and establish reserves.

Amphibians could develop immunity against devastating fungal disease

2009-04-03T05:08:00Z

The fungal disease chytridiomycosis has ravaged amphibian populations, including contributing to several extinctions. But new research may bring some hope for currently threatened amphibians.

Poison frog diversity linked to the Andes

2009-03-10T16:26:00Z

Electric colors, wild markings, and toxic skin have made poison frogs well-known inhabitants of the Amazon rainforest. With 353 recognized species, and probably more awaiting discovery, poison frogs are an incredibly diverse group of amphibians. While it has long been believed that the Amazon basin, itself, was the source of their diversity, a new study published in PLoS Biology has uncovered that the Andes mountain chain has served as an oven of evolutionary biodiversity for poison frogs over several million years.

Salamander populations collapse in Central America

2009-02-09T23:38:00Z

Salamanders in Central America — like frogs, toads, and other amphibians at sites around the world — are rapidly and mysteriously declining, report researchers writing in the journal Proceedings of the National Academy of Sciences. Disturbingly, salamanders are disappearing from protected areas and otherwise pristine habitats.

12 new species of frogs discovered in India

2009-02-03T02:09:00Z

A dozen previously unknown species of frogs have been discovered in the forests of Western Ghats according to a paper published in latest issue of Zoological Journal of Linnean Society, London. The 12 species have been identified following a revision of the Philautus genus and are the result of ten years of field study in Kerala, Tamil Nadu, Karnataka. Goa, Maharashtra, and part of Gujarat, in the Western Ghats. The Western Ghats are considered a global biodiversity hotspot for their species richness and the threats the mountain range faces.

One billion frogs harvested as food per year

2009-01-21T11:13:00Z

The consumption of up to one billion frogs per year to satisfy human appetite for frog flesh is adding to the litany of pressures on global amphibian populations, write researchers in the upcoming issue of Conservation Biology.

Symposium tackles big question: how many species will survive our generation

2009-01-16T17:17:00Z

Nine scientists dusted off their crystal balls Monday at the National Museum of Natural History in Washington DC, weighing in on the future of the world’s tropical forest. Despite the most up-to-date statistics, prognosis for the future of tropical forests varied widely. In the last few years a schism has occurred among biologists regarding the future of the tropics. No tropical scientist denies that rainforests and the species which inhabit them face unprecedented threats; neither do they argue that some of these forested regions and species will likely not survive the next fifty years. What has sparked debate, sometimes heated, is how bad will is it really? When the dust settles, what percentage of species will survive and how much forest will remain?

What is the greatest threat to rainforests: habitat destruction or climate change?

2009-01-13T20:09:00Z

A symposium from the Smithsonian Institution meant to debate the level of threat by deforestation posed to the tropics shifted topic slightly near its end as scientists began to discus which was the most significant threat for rainforests and the species that inhabit them: habitat destruction or climate change?

Lack of information may slow conservation response to amphibian crisis

2008-12-01T14:30:39Z

The Neotropics harbor between 30-50% of the world's reptiles and amphibians, but dramatic declines in both groups have been observed over recent decades. While a number of factors have been cited, many of the causes of reptile and amphibian declines are still poorly understood. The situation is paralleled by a lack of information of the natural history, ecology, and behavior of many species.

Invasive ant interferes with gecko's role in pollinating endangered plant

2008-11-28T14:30:39Z

Invasive ants are destroying the symbiotic relationship between a colorful gecko and a critically endangered flower on the island of Mauritius, reports New Scientist citing research published by Dennis Hansen and Christine Müller in the journal Biotopica.

New hope of curing amphibian plague

2008-11-28T14:30:39Z

Amphibians worldwide are in trouble. One of the most endangered animal groups, amphibians are increasingly threatened by habitat loss, pollution, and climate change. However the largest threat is chytridiomycosis, a devastating disease caused by a parasitic chytrid fungus known as Batrachochytrium dendrobatidis, otherwise known as Bd.

Prioritizing amphibian species for captive breeding to save them from extinction

2008-11-13T14:30:39Z

Frogs, toads, salamanders and other amphibians are disappearing at an alarming rate. Of approximately 6,000 amphibian species in the world, about one third are classified as threatened or endangered. A disease caused by a chytrid fungus has devastated frogs living in mid to high elevation streams worldwide. Amphibians also face habitat destruction as forests and wetlands are developed and polluted by agricultural chemicals. In Panama, highland frog populations west of the Canal have declined at an alarming rate.

Scientists can't explain cause of amphibian extinction crisis

2008-11-13T14:30:39Z

Scientists have yet to conclusively explain the underlying cause of global declines in amphibian populations, according to a study published in the journal Proceedings of the National Academy of Sciences. The research says that two leading theories for the demise of amphibians — both related to the emergence and spread of the deadly chytrid fungus — are not supported by scientific data.

Yellowstone amphibians in decline due to climate change

2008-10-27T14:30:39Z

Climate change appears to be responsible for a "marked drop" in the population of three of four species of amphibian once common to Yellowstone National Park, report researchers writing in Proceedings of the National Academy of Sciences.

Mass amphibian die-offs affect ecosystems

2008-10-19T14:30:39Z

Large-scale die-offs of amphibians due to the outbreak of a killer fungal disease is impacting the forest ecosystem in which they live, reports a new study published in the journal Ecosystems.

Armageddon for amphibians? Frog-killing disease jumps Panama Canal

2008-10-12T14:30:39Z

Chytridiomycosis — a fungal disease that is wiping out amphibians around the world — has jumped across the Panama Canal, report scientists writing in the journal EcoHealth. The news is a worrying development for Panama's rich biodiversity of amphibians east of the canal.

52% of amphibians, 35% of birds at risk from climate change

2008-10-08T14:30:39Z

52 percent of the amphibians, 35 percent of birds and 71 percent of reef-building coral are "particularly susceptible" to climate change, warns an IUCN report.

More than half of Europe's amphibians face extinction by 2050

2008-09-28T14:30:39Z

Researchers with the Zoological Society of London (ZSL) said over half of European amphibians face extinction in less than fifty years due to a perfect storm of threats: climate change, habitat loss, and disease. The announcement came at an event titled ‘Amphibians in a climate of change' hosted by Sir. David Attenborough, one of the world's most well-known wildlife enthusiasts due to his long career making nature documentaries.

Thought-to-be-extinct frog rediscovered in Australia

2008-09-11T14:30:39Z

Scientists have rediscovered a thought-to-be-extinct species of frog in a creek in Northern Australia. The find offers hope that some species have survived a fungal epidemic that has devastated the amphibians of Queensland.

Amphibians face mass extinction

2008-08-11T14:30:39Z

Amphibians are in big trouble. At least one third of the world's 6,300 known species are threatened with extinction, while at least 200 species have gone extinct over the past 20 years. Worryingly the outbreak of a deadly fungal disease, chytridiomycosis, is spreading throughout the tropics leaving millions of victims. A new study, published in the early edition of the Proceedings of the National Academy of Sciences, warns that there is "little time to stave off a potential mass extinction" of frogs, salamanders, and caecilians.

Naming rights for newly discovered 'walking frog' to be auctioned for conservation

2008-05-20T14:30:39Z

The Amphibian Ark, an initiative to save disappearing amphibians from extinction, will auction of the naming rights of a newly discovered 'walking frog' in Ecuador to raise money for local conservation efforts.

New cures for human ailments under threat by global extinction crisis

2008-04-24T14:30:39Z

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.

No global warming link to dying frogs?

2008-03-25T14:30:39Z

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.

Rare jewel-colored frog rediscovered in Colombia

2008-03-13T14:30:39Z

A brilliantly-colored frog has been rediscovered 14 years after its last sighting in a remote mountainous region in Colombia.

Half of Madagascar's amphibians may still await discovery

2008-03-11T14:30:39Z

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!

A Doomsday Vault for Frogs?

2008-02-27T14:30:39Z

The Amphibian Ark, a doomsday vault for amphibians, will highlight Leap Day, February 29th, to recognize 2008 as the Year of the Frog. The campaign seeks to raise awareness of the global plight of frogs and other amphibians threatened by habitat loss, climate change, pollution and an emergent disease. Joining in the effort is the Wildlife conservation Society?s (WCS) Bronx Zoo and New York Aquarium, facilities that house some of the world's most threatened amphibians.

The Panamanian golden frog declared extinct by BBC Natural History crew

2008-02-04T14:30:39Z

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

2008-01-30T14:30:39Z

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

2008-01-21T14:30:39Z

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.

Three salamander species discovered in Costa Rica

2008-01-06T14:30:39Z

Scientists from the Natural History Museum of London have discovered three new species of salamander in south-eastern Costa Rica. This brings the nation's total to forty-three species, meaning that this small tropical nation contains approximately nine percent of the world's salamanders.

As amphibians leap toward extinction, alliance pushes "The Year of the Frog"

2007-12-31T14:30:39Z

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

2007-12-19T14:30:39Z

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.

Physicists join fight to save amphibians from extinction

2007-11-19T14:30:39Z

Physicists have joined the fight to save amphibians from extinction by using Optical Coherence Tomography (OCT) to investigate the properties of frogs skin.

Amphibian extinction may be worse than thought

2007-10-31T14:30:39Z

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

2007-10-29T14:30:39Z

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.

As colorful frog leaps toward extinction, experts look for clues

2007-10-29T14:30:39Z

A brightly coloured tropical frog under threat of extinction is the focus of a new research project hoping to better understand how environment and diet influence its development and behaviour.

Two new species of salamander discovered in Panama

2007-09-09T14:30:39Z

Scientists have discovered two new species of salamanders from the mountainous Costa Rica-Panama border region. The findings, published by David B. Wake, Jay M. Savage, and James Hanken in the journal Copeia, push the number of salamanders known in the region to 24, making it a hotspot in terms of salamander biodiversity.

Scientists meet in Hungary to discuss saving dying frogs

2007-08-27T14:30:39Z

Scientists are meeting this week in Budapest, Hungary to discuss last-ditch efforts to save the world's most threatened frogs from extinction.

Frog killing diseases worse than thought in California

2007-08-06T14:30:39Z

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.

Global warming may be key factor in frog deaths

2007-05-30T14:30:39Z

Three papers published in this week's issue of the journal Nature debate the proximate causes for the global decline of amphibians, but nonetheless reveal mounting concerns among scientists over the continuing disappearance of frogs, salamanders, and their relatives.

Scientists find possible cure for global amphibian-killing disease

2007-05-23T14:30:39Z

Scientists have discovered a possible treatment for the fungal disease that has killed millions of amphibians worldwide. Presenting Wednesday at the General Meeting of the American Society for Microbiology in Toronto, Professor Reid N. Harris at James Madison University reported that Pedobacter cryoconitis, a bacteria found naturally on the skin of red-backed salamanders, wards off the deadly chytridiomycosis fungus, an infection cited as a contributing factor to the global decline in amphibians observed over the past three decades.

Climate change leaving amphibians behind in extinction race

2007-04-30T14:30:39Z

Despite surviving the age of dinosaurs and numerous bouts of severe climate change, amphibians are not keeping pace with the current rate of global change, reports a new study published in the journal Bioscience.