New Study: Half Of U.S. Endangered And Threatened Species Showed Stable Or Improving Trend, 1988 – 2002

A peer-reviewed analysis, posted in early August by the scientific journal Ecology Letters, concludes that more than 50% of U.S. species listed as endangered or threatened under the Endangered Species Act (ESA) before 2000 and almost two-thirds of species listed for 13 or more years have stabilized or are improving. Further, species whose recovery efforts received significant funding are more likely to be improving.

"The Endangered Species Act is doing its job," said Dr. Tim Male, senior ecologist at Environmental Defense and one of the study's two authors. "When given the resources they need, species are fighting their way back from the brink."

The article, authored by Male and Environmental Defense Wildlife Chair Michael Bean, will appear in the September printed issue of Ecology Letters. The article can also be downloaded here in PDF format or viewed at Ecology Letters' website

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