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Latest Decline in amphibian populations Stories

Climate Change Robs Frogs And Salamanders Of Refuge
2014-05-02 03:41:38

Sandra Hines / Lisa Hayward US Geological Survey By hightailing it to nearby ponds and shallow waterways, frogs and salamanders have – until now – had a way to evade exotic trout introduced to the West's high-mountain lakes for recreational fishing. A warming climate, however, will dry up some of the places where amphibians and their young have found refuge. Researchers in the May 1 issue of Frontiers in Ecology and the Environment write about this challenge and a novel combination...

New Study Raises Hope To Fight Chytrid Amphibian Pathogen
2014-01-21 15:47:48

Helmholtz-Center for Environmental Research An international team of researchers has made important progress in understanding the distribution of the deadly amphibian chytrid pathogen. In some regions, the deadly impact of the pathogen appears to be hampered by small predators, naturally occurring in freshwater bodies. These micropredators may efficiently reduce the number of free-swimming infectious stages (zoospores) by consuming them. This natural behavior will reduce the infection...

Deadly Fungus Cause Of Frog Declines In The Andes
2013-12-13 07:25:23

San Francisco State University Amphibians at high elevations can tolerate temperature changes, but susceptible to deadly fungus A deadly fungus, and not climate change as is widely believed, is the primary culprit behind the rapid decline of frog populations in the Andes mountains, according to a new study published today in the journal Conservation Biology. Frogs living at higher elevations can tolerate increasing temperatures, researchers found, but their habitats fall within the...

Survey Finds Frog Abnormalities Are Rare
2013-11-20 13:45:34

University of California, Davis A 10-year study shows some good news for frogs and toads on national wildlife refuges. The rate of abnormalities such as shortened or missing legs was less than 2 percent overall — indicating that the malformations first reported in the mid-1990s were rarer than feared. But much higher rates were found in local "hotspots," suggesting that where these problems occur they have local causes. The results were published Nov. 18 in the journal PLOS ONE. "We...

2013-10-24 11:57:40

The herbicide atrazine increased mortality from chytridiomycosis, a disease causing worldwide amphibian declines The combination of the herbicide atrazine and a fungal disease is particularly deadly to frogs, shows new research from a University of South Florida laboratory, which has been investigating the global demise of amphibian populations. USF Biologist Jason Rohr said the new findings show that early-life exposure to atrazine increases frog mortality but only when the frogs were...

Salamanders Threatened By Deadly Skin-eating Fungus
2013-09-03 07:59:33

Imperial College London A new species of fungus that eats amphibians' skin has ravaged the fire salamander population in the Netherlands, bringing it close to regional extinction. Fire salamanders, recognizable by their distinctive yellow and black skin patterns, have been found dead in the country's forests since 2010. The population has fallen to around 10 individuals, less than four per cent of its original level, but what has been killing them has been a mystery until now....

Bullfrogs Spreading Deadly Fungus Also Die From It
2013-06-18 07:29:03

April Flowers for redOrbit.com - Your Universe Online There is currently a global decline in amphibian populations. It is believed that a major cause for this decline is a fungus thought to be spread by bullfrogs. A two-year study from Oregon State and the University of Pittsburgh reveals bullfrogs are not only tolerant carriers that spread the disease, as previously thought. The bullfrogs are also dying from the pathogen. The research team raised bullfrogs from eggs in controlled...

United States Amphibian Populations Rapidly Declining
2013-05-25 05:57:30

redOrbit Staff & Wire Reports - Your Universe Online The number of frogs, toads and salamanders in the US could be falling at an even more severe and widespread rate than previously believed, and even amphibian populations thought to be stable are actually on the decline, according to new research for the US Geological Survey (USGS). The study, which was published earlier this week in the journal PLOS ONE, is believed to be the first-ever estimate of how quickly amphibians across...

Climate Change Impacts On Amphibians Studied By USGS Experts
2013-05-19 06:22:41

[ Watch the Video: What is Climate Change ] redOrbit Staff & Wire Reports - Your Universe Online A US Geological Survey (USGS) effort to monitor the impact of climate change on amphibians living in the ponds and swamps of the southeastern United States has discovered that changes in rainfall patterns can cause short-term declines in mole salamanders, the agency reported on Friday. As part of their research, the USGS´s Amphibian Research and Monitoring Initiative (ARMI)...

American Bullfrog Is Spreading Chytrid Through Commercial Trade
2013-03-07 09:27:12

Wildlife Conservation Society A team of scientists led by the Wildlife Conservation Society (WCS) and the National University of Singapore (NUS), revealed in a new study, for the first time, the presence of the pathogenic chytrid fungus (Batrachochytrium dendrobatidis) in amphibians sampled in Singapore. And the American bullfrog may be a central player in the spread of the disease. The study appears in the current issue of the journal EcoHealth, and is the first to consider the role...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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