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Last updated on April 18, 2014 at 15:44 EDT

Latest Mountain yellow-legged frog Stories

2014-01-29 23:00:36

This frog species, which once hopped throughout California’s upper elevations, has dropped significantly in numbers, more than ninety percent in the past decade, due in part to chytrid, a skin fungus that thickens the frog’s skin so they can’t breathe. Oakland, CA (PRWEB) January 29, 2014 On Wednesday, February 5, 2014, from 6:30pm – 9:30pm, the public is invited to attend a Conservation Speaker Series focused on saving the mountain yellow- legged frog. This frog species, which...

Frog Diseases Increasing
2012-07-19 10:38:29

Brett Smith for redOrbit.com - Your Universe Online In addition to the stresses placed on amphibians, or perhaps because of them, they are now more likely to succumb to debilitating infectious diseases. In recent decades, disease seems to have taken a more prominent role in the amphibian mortality rate, according to a new study published in Philosophical Transactions of the Royal Society B. Along with climate change, habitat destruction, pollution and invasive species, these creatures...

Deadly Fungus Causing Dehydration In Wild Frogs
2012-04-27 04:47:07

According to a new study, the fungal infection killing amphibians around the world is causing deadly dehydration in frogs in the wild. The scientists say that high levels of Batrachochytrium dendrobatidis (Bd), the fungus known as the culprit behind the death of the frogs, disrupts fluid and electrolyte balance in the frogs.  As a result, the amphibians' sodium and potassium levels are depleted, causing cardiac arrest and death. San Francisco State University biologist Vance...

2012-03-12 19:58:19

Known for its distinctive "ribbit" call, the noisy Pacific chorus frog is a potent carrier of a deadly amphibian disease, according to new research published today in the journal PLoS ONE. Just how this common North American frog survives chytridiomycosis may hold clues to protect more vulnerable species from the disease. Chytrid has wiped out more than 200 frog species across the world and poses the greatest threat to vertebrate biodiversity of any known disease. In California's Sierra...

2011-04-25 16:40:38

Amphibian declines around the world have forced many species to the brink of extinction, are much more complex than realized and have multiple causes that are still not fully understood, researchers conclude in a new report. The search for a single causative factor is often missing the larger picture, they said, and approaches to address the crisis may fail if they don't consider the totality of causes "“ or could even make things worse. No one issue can explain all of the population...

2010-08-18 10:16:00

WASHINGTON, Aug. 18 /PRNewswire-USNewswire/ -- Links to pesticide exposure are being found in a growing number of studies that evaluate the causes of preventable diseases -- including asthma, autism and learning disabilities, birth defects and reproductive dysfunction, diabetes, Parkinson's and Alzheimer's diseases, and several types of cancer. A new database, released today, tracks published epidemiologic and real world exposure studies. The studies challenge the effectiveness of...

2010-05-20 10:31:45

Atrazine, one of the most commonly used herbicides in the world, has been shown to affect reproduction of fish, according to a new U.S. Geological Survey (USGS) study. "Concentrations of atrazine commonly found in agricultural streams and rivers caused reduced reproduction and spawning, as well as tissue abnormalities in laboratory studies with fish," said USGS scientist Donald Tillitt, the lead author of the study published in Aquatic Toxicology. Fathead minnows were exposed to atrazine at...

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2010-05-11 08:10:00

Scientists have unraveled the dynamics of a deadly disease that is wiping out amphibian populations across the globe. New findings, published May 10 in the Proceedings of the National Academy of Sciences, suggest that infection intensity -- the severity of the disease among individuals -- determines whether frog populations will survive or succumb to an amphibian fungal disease called Chytridiomycosis. The research identifies a dangerous tipping point in infection intensity, beyond which...

2010-03-01 16:16:00

WASHINGTON, March 1 /PRNewswire/ -- Alex Avery, Director of Research and Education at the Hudson Institute's Center for Global Food Issues, criticized new research by University of California Berkeley professor Dr. Tyrone Hayes alleging endocrine disruption in amphibians caused by the popular herbicide atrazine. Prior research by Dr. Hayes has come under scientific scrutiny and criticism by directors of the Environmental Protection Agency (EPA) for lacking basic scientific standards and...

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2010-01-15 10:04:21

Infectious Diseases Spreading West Nile virus.  Hantavirus.  Lyme disease.  All are infectious diseases spreading in animals, and in humans.  Is our interaction with the environment somehow responsible for the increase in incidence of these diseases? A joint National Science Foundation (NSF) and National Institutes of Health program -- ecology of infectious diseases (EID) -- supports efforts to understand the underlying ecological and biological mechanisms behind...