Climate Change Hastens Population Extinctions
Climate change is expected to alter the distribution and abundance of many species. Predictions of climate-induced population extinctions are supported by geographic range shifts that correspond to climatic warming, but few extinctions have been linked mechanistically to climate change. Here we show...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 2002-04, Vol.99 (9), p.6070-6074 |
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| container_title | Proceedings of the National Academy of Sciences - PNAS |
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| creator | McLaughlin, John F. Hellmann, Jessica J. Boggs, Carol L. Ehrlich, Paul R. |
| description | Climate change is expected to alter the distribution and abundance of many species. Predictions of climate-induced population extinctions are supported by geographic range shifts that correspond to climatic warming, but few extinctions have been linked mechanistically to climate change. Here we show that extinctions of two populations of a checkerspot butterfly were hastened by increasing variability in precipitation, a phenomenon predicted by global climate models. We model checkerspot populations to show that changes in precipitation amplified population fluctuations, leading to rapid extinctions. As populations of checkerspots and other species become further isolated by habitat loss, climate change is likely to cause more extinctions, threatening both species diversity and critical ecosystem services. |
| doi_str_mv | 10.1073/pnas.052131199 |
| format | Article |
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Predictions of climate-induced population extinctions are supported by geographic range shifts that correspond to climatic warming, but few extinctions have been linked mechanistically to climate change. Here we show that extinctions of two populations of a checkerspot butterfly were hastened by increasing variability in precipitation, a phenomenon predicted by global climate models. We model checkerspot populations to show that changes in precipitation amplified population fluctuations, leading to rapid extinctions. 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| subjects | Animal populations Animals Biodiversity Biological Sciences Butterflies & moths Butterflies - physiology Climate Climate change Climate models Ecosystem Environmental impact Euphydryas editha Extinction Extinction, Psychological Global climate models Habitat loss Larvae Modeling Nymphalidae Population dynamics Population growth Precipitation Species extinction Time Factors |
| title | Climate Change Hastens Population Extinctions |
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