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.
History
Publication title
Science
Volume
330
Issue
6010
Pagination
1503-1509
ISSN
0036-8075
Department/School
School of Geography, Planning and Spatial Sciences
Publisher
Amer Assoc Advancement Science
Place of publication
1200 New York Ave, Nw, Washington, USA, Dc, 20005
Repository Status
Restricted
Socio-economic Objectives
Other environmental management not elsewhere classified