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Latest Decline in amphibian populations Stories

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...

2012-06-06 10:21:22

New York and Washington, DC Events Highlight Research Methodology on Amphibian Declines Implemented to Study Honey Bees NEW YORK, June 6, 2012 /PRNewswire-USNewswire/ -- EcoHealth Alliance, a nonprofit organization that focuses on local conservation and global health issues, announced this week at New York City and Washington, DC events the expansion of its programs to include the study of honey bee health. Leveraging the organization's independent scientific expertise, EcoHealth...

2012-05-22 03:00:29

Increases in the diversity of parasites that attack amphibians cause a decrease in the infection success rate of virulent parasites, including one that causes malformed limbs and premature death, says a new University of Colorado Boulder study. According to CU-Boulder Assistant Professor Pieter Johnson, scientists are concerned about how changes in biodiversity affect the risk of infectious diseases in humans and wildlife. Charting the relationships between parasites and amphibians is...

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...

Amphibians In Regions With Diversity Are Most At Risk
2011-11-17 12:55:16

According to new research, tropical regions with the richest diversity are most at risk of losing frogs, toads, newts and salamanders. Scientists predict the future for these amphibians is even more bleak than conservationists had thought. They predict that areas with the highest diversity of amphibian species will be under the most intense threat in the future.  About half of amphibian species are in decline, while a third that are already threatened with extinction. The...

2011-11-17 03:15:20

Amphibian populations are declining worldwide, and their declines far exceed those of other animal groups: more than 30% of all species are listed as threatened according to the Red List of the International Union for the Conservation of Nature (IUCN). Multiple factors threaten global amphibian diversity but the spatial distribution of these threats and their interactions are poorly known. A new study published in Nature with Dr. Christian Hof as lead author indicates that, worryingly, areas...

2011-09-19 23:22:46

Researchers at Oregon State University have shown for the first time that loss of biodiversity may be contributing to a fungal infection that is killing amphibians around the world, and provides more evidence for why biodiversity is important to many ecosystems. The findings, being published this week in Proceedings of the National Academy of Sciences, used laboratory studies of amphibians to show that increased species richness decreased both the prevalence and severity of infection...

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2011-05-03 09:47:19

There's a crisis among the world's amphibians"”about 40 percent of amphibian species have dwindled in numbers in just three decades. Now, museum jars stuffed full of amphibians may help scientists decide whether this wave of extinctions was caused by a fungal infection. DNA swabbed from the preservative-soaked skins of salamanders, frogs and toads"”collected from some of Central America's best-known extinction hotspots"” revealed a startling but clear pattern. Salamanders in...

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...