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2007-04-02 11:28:25 | Hit : 20252 | Vote : 7771

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[자료] Climate change and outbreaks of amphibian chytridiomycosis in a montane area of Central Spain; is there a link?

Proc. R. Soc. B (2007) 274, 253–260
doi:10.1098/rspb.2006.3713
Published online 25 October 2006

Climate change and outbreaks of amphibian chytridiomycosis in a montane area of Central Spain; is there a link?

Jaime Bosch1, *, Luı´s M. Carrascal1, Luis Dura´ n2, Susan Walker3 and Matthew C. Fisher3

1Departamento de Biodiversidad y Biologı´a Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, Jose´ Gutie´rrez Abascal, 2 28006 Madrid, Spain
2Departamento de Fisica y Matema´ tica, Universidad Europea de Madrid, 28670 Villaviciosa de Odo´n, Madrid, Spain
3Department of Infectious Disease Epidemiology, Imperial College Faculty of Medicine, St Mary’s Campus, Norfolk Place, London W2 1PG, UK

Amphibian species are declining at an alarming rate on a global scale in large part owing to an infectious disease caused by the chytridiomycete fungus, Batrachochytrium dendrobatidis. This disease of amphibians has recently emerged within Europe, but knowledge of its effects on amphibian assemblages remains poor. Importantly, little is known about the environmental envelope that is associated with chytridiomycosis in Europe and the potential for climate change to drive future disease dynamics. Here, we use long-term observations on amphibian population dynamics in the Pen˜ alara Natural Park, Spain, to investigate the link between climate change and chytridiomycosis. Our analysis shows a significant association between change in local climatic variables and the occurrence of chytridiomycosis within this region. Specifically, we show that rising temperature is linked to the occurrence of chytrid-related disease, consistent with the
chytrid-thermal-optimum hypothesis. We show that these local variables are driven by general circulation patterns, principally the North Atlantic Oscillation. Given that B. dendrobatidis is known to be broadly
distributed across Europe, there is now an urgent need to assess the generality of our finding and determine whether climate-driven epidemics may be expected to impact on amphibian species across the
wider region.

Keywords: climate-change; chytridiomycosis; Batrachochytrium dendrobatidis; amphibian declines; epidemiology

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=17148254&query_hl=2&itool=pubmed_docsum

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