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solonavi 21 November 2006 Climate, Endangered & Extinction, Global Warming 96 views No Comment Print This Post  Email This Post

Associated Press

Animal and plant species have begun dying off or changing sooner than predicted because of global warming, a review of hundreds of research studies contends.

These fast-moving adaptations come as a surprise even to biologists and ecologists because they are occurring so rapidly.

At least 70 species of frogs, mostly mountain-dwellers that had nowhere to go to escape the creeping heat, have gone extinct because of climate change, the analysis says. It also reports that between 100 and 200 other cold-dependent animal species, such as penguins and polar bears are in deep trouble.

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Parmesan reports seeing trends of animal populations moving northward if they can, of species adapting slightly because of climate change, of plants blooming earlier, and of an increase in pests and parasites.

Parmesan and others have been predicting such changes for years, but even she was surprised to find evidence that it’s already happening; she figured it would be another decade away.

Just five years ago biologists, though not complacent, figured the harmful biological effects of global warming were much farther down the road, said Douglas Futuyma, professor of ecology and evolution at the State University of New York in Stony Brook.

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The most noticeable changes in plants and animals have to do with earlier springs, Parmesan said. The best example can be seen in earlier cherry blossoms and grape harvests and in 65 British bird species that in general are laying their first eggs nearly nine days earlier than 35 years ago.

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“We are seeing a lot of evolution now,” Parmesan said. However, no new gene mutations have shown themselves, not surprising because that could take millions of years, she said.