Navigation Links
Predicting future threats for global amphibian biodiversity
Date:11/16/2011

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 of greatest amphibian species richness are the areas subject to the greatest threat.

The research was led by Professor Carsten Rahbek, the Center for Macroecology, Evolution and Climate of the University of Copenhagen (Denmark) together with Professor Miguel B. Arajo, the Spanish Research Council (CSIC) at the National Museum of Natural Sciences, Madrid (Spain) and conducted in collaboration with Associate Professor Walter Jetz (Yale University, USA).

Among the most serious threats to amphibians are climate change, land-use change and the fungal disease chytridiomycosis. Christian Hof and colleagues assess the geographical distribution of these threats in relation to the global distribution of amphibians. "Regions where climate and land-use change have the highest projected impact on amphibians tend to overlap", explains the researcher, "by contrast, the threat posed by the fungal disease shows little spatial overlap with the other two threats."

The researchers also find that the most species-rich areas in the world are more likely to be exposed to one or more threats than areas with low species richness: "Our study shows that more than two thirds of the global amphibian diversity hotspots will likely be strongly affected by at least one of the three threats considered", says Miguel Arajo from the Spanish Research Council (CSIC).

On the basis of the observed overlapping of risk factors, the authors suggest that risk assessments based on just one threat are likely to be over-optimistic. "Our assessment shows that amphibian declines are likely to accelerate over the next decades, as multiple drivers of extinction could jeopardize their populations more than previous, mono-causal, assessments have suggested", says Carsten Rahbek from the University of Copenhagen. Walter Jetz (Yale University) concludes: "With more than 30 per cent of all amphibian species already listed as threatened by IUCN and many rare species still being discovered every year, our results highlight the need for greater conservation research and action for this highly threatened group."


'/>"/>

Contact: Dr. Carsten Rahbek
crahbek@bio.ku.dk
01-145-353-21030
University of Copenhagen
Source:Eurekalert

Related biology news :

1. Scientists move closer to predicting who will and will not fight off severe infections
2. Fluctuations before the fall: Predicting and preventing environmental collapse
3. New way of predicting dominant seasonal flu strain
4. Study improves accuracy of models for predicting ozone levels in urban areas
5. Probing the nanoparticle: Predicting how nanoparticles will react in the human body
6. A crystal ball for predicting the effects of global climate change
7. Predicting amount of oil in contaminated soils
8. New biomarkers for predicting the spread of colon cancer
9. Predicting prognosis and treatment response in a subset of pancreatic cancer patients
10. Species distribution models are of only limited value for predicting future mammal distributions
11. Predicting cancer prognosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/14/2016)... 14, 2016 BioCatch ™, ... today announced the appointment of Eyal Goldwerger ... Goldwerger,s leadership appointment comes at a time ... the deployment of its platform at several of the ... which discerns unique cognitive and physiological factors, is a ...
(Date:3/23/2016)... 2016 Einzigartige ... und Stimmerkennung mit Passwörtern     ... MESG ), ein führender Anbieter digitaler Kommunikationsdienste, ... SpeechPro zusammenarbeitet, um erstmals dessen Biometrietechnologie einzusetzen. ... Möglichkeit angeboten, im Rahmen mobiler Apps neben ...
(Date:3/17/2016)... ABI Research, the leader in transformative ... market will reach more than $30 billion by ... Consumer electronics, particularly smartphones, continue to boost the ... reach two billion shipments by 2021 at a ... Research Analyst at ABI Research. "Surveillance is also ...
Breaking Biology News(10 mins):
(Date:5/23/2016)... ... May 23, 2016 , ... PrecisionAg® ... Farming in 2017 and Beyond. The paper outlines the key trends that are ... industry. , “We’ve witnessed a lot of highs and lows as the precision ...
(Date:5/23/2016)... Oxitec CEO Hadyn Parry will testify ... before the United States House Committee on Science, Space and ... controlling the spread of the Aedes aegypti mosquito, ... (Logo: http://photos.prnewswire.com/prnh/20150630/227348 ) Oxitec has pioneered ... in Brazil , Panama ...
(Date:5/23/2016)... ... May 23, 2016 , ... RoviSys, a leading independent ... Aurora, Ohio, has broken ground on a new building in Holly Springs, NC. ... this new location solidifies a commitment to business in the region. The new ...
(Date:5/22/2016)... ... , ... Doctors in Rome say micronutrients found in certain foods have the ... has just posted an article on the new research. Click here to read ... and Translational Medicine evaluated more than 150 studies on polyphenols in cancer for their ...
Breaking Biology Technology: