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:1/31/2017)... 31, 2017  Spero Therapeutics, LLC, a biopharmaceutical ... treatment of bacterial infections, today announced it has ... from Pro Bono Bio Ltd (PBB) to bolster ... resistant forms of Gram-negative bacteria.   The assets acquired ... a PBB group company. "The acquisition ...
(Date:1/24/2017)... , Jan. 24, 2017 Biopharm Reports ... the laboratory use of nuclear magnetic resonance spectroscopy ... end-users and profiled current practices, developments, trends and ... well as growth and opportunities. These areas include ... NMR instruments, needs and innovation requirements, hyphenated NMR ...
(Date:1/19/2017)... 2017 Sensory Inc ., a ... for consumer electronics, and i nnerCore ... cybersecurity solutions, today announced a global partnership that ... worldwide to bolster security of data sensitive mobile ... authentication platforms they offer, innerCore now offers its ...
Breaking Biology News(10 mins):
(Date:2/22/2017)... (PRWEB) , ... February 22, 2017 , ... ... that is has acquired Kendall Research Systems, LLC (KRS) clinical development ... that develops neural interface technology for research and clinical applications. The terms of ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... leading medical education provider of women’s health, primary care, and specialty education, ... for Continuing Medical Education (ACCME). ACCME’s Accreditation with Commendation is a six-year ...
(Date:2/22/2017)... Dublin - Research and Markets has ... Market-By Type, By Application, By End User, By Region, By Country: ... ... Market is forecasted to grow at a CAGR of 11.33% during ... crop protection market is driven by the surging demand for less ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... addition of Tom Perkins as European director. Operating from Pennside’s Zurich headquarters, Pennside ... , Perkins joins Pennside after more than a decade with leading market ...
Breaking Biology Technology: