The impact of conservation on the status of the world's vertebrates

Authors

College

College of Science

Department/Unit

Biology

Document Type

Article

Source Title

Science

Volume

330

Issue

6010

First Page

1503

Last Page

1509

Publication Date

10-26-2010

Abstract

Using data for 25,780 species categorized on the International Union for Conservation of Nature Red List, we present an assessment of the status of the world’s vertebrates. One-fifth of species are classified as Threatened, and we show that this figure is increasing: On average, 52 species of mammals, birds, and amphibians move one category closer to extinction each year. However, this overall pattern conceals the impact of conservation successes, and we show that the rate of deterioration would have been at least one-fifth again as much in the absence of these. Nonetheless, current conservation efforts remain insufficient to offset the main drivers of biodiversity loss in these groups: agricultural expansion, logging, overexploitation, and invasive alien species.

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Disciplines

Biology

Keywords

Vertebrates; Wildlife conservation

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