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Science 22 July 2005:
Vol. 309. no. 5734, pp. 603 - 607
DOI: 10.1126/science.1114015
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Reports

Global Mammal Conservation: What Must We Manage?

Gerardo Ceballos,1* Paul R. Ehrlich,2 Jorge Soberón,3{dagger} Irma Salazar,1 John P. Fay2

We present a global conservation analysis for an entire "flagship" taxon, land mammals. A combination of rarity, anthropogenic impacts, and political endemism has put about a quarter of terrestrial mammal species, and a larger fraction of their populations, at risk of extinction. A new global database and complementarity analysis for selecting priority areas for conservation shows that ~11% of Earth's land surface should be managed for conservation to preserve at least 10% of terrestrial mammal geographic ranges. Different approaches, from protection (or establishment) of reserves to countryside biogeographic enhancement of human-dominated landscapes, will be required to approach this minimal goal.

1 Instituto de Ecología, UNAM, Apdo. Postal 70-275, México D.F. 04510, México.
2 Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, CA 94305–5020, USA.
3 Comisión Nacional de Biodiversidad, Periferico-Insurgentes 4903, Mexico.

{dagger} Present address: Natural History Museum, Dyke Hall, University of Kansas, Lawrence, KS 66045, USA.

* To whom correspondence should be addressed. E-mail: gceballo{at}miranda.ecologia.unam.mx

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Cost-effective priorities for global mammal conservation.
J. Carwardine, K. A. Wilson, G. Ceballos, P. R. Ehrlich, R. Naidoo, T. Iwamura, S. A. Hajkowicz, and H. P. Possingham (2008)
PNAS 105, 11446-11450
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Ecosystem Services Special Feature: Global mapping of ecosystem services and conservation priorities.
R. Naidoo, A. Balmford, R. Costanza, B. Fisher, R. E. Green, B. Lehner, T. R. Malcolm, and T. H. Ricketts (2008)
PNAS 105, 9495-9500
   Abstract »    Full Text »    PDF »
Species richness, hotspots, and the scale dependence of range maps in ecology and conservation.
A. H. Hurlbert and W. Jetz (2007)
PNAS 104, 13384-13389
   Abstract »    Full Text »    PDF »
Global mammal distributions, biodiversity hotspots, and conservation.
G. Ceballos and P. R. Ehrlich (2006)
PNAS 103, 19374-19379
   Abstract »    Full Text »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)