Articles Terrestrial Ecoregions of the World: A New Map of Life on Earth DAVID M. OLSON, ERIC DINERSTEIN, ERIC D. WIKRAMANAYAKE, NEIL D. BURGESS, GEORGE V. N. POWELL, EMMA C. UNDERWOOD, JENNIFER A. D’AMICO, ILLANGA ITOUA, HOLLY E. STRAND, JOHN C. MORRISON, COLBY J. LOUCKS, THOMAS F. ALLNUTT, TAYLOR H. RICKETTS, YUMIKO KURA, JOHN F. LAMOREUX, WESLEY W. WETTENGEL, PRASHANT HEDAO, AND KENNETH R. KASSEM he tapestry of life on Earth is unraveling as humans Tincreasingly dominate and transform natural ecosys- A NEW GLOBAL MAP OF TERRESTRIAL tems. Scarce resources and dwindling time force conserva- ECOREGIONS PROVIDES AN INNOVATIVE tionists to target their actions to stem the loss of biodiversity— a pragmatic approach, given the highly uneven distribution TOOL FOR CONSERVING BIODIVERSITY of species and threats (Soulé and Kohm 1989, Olson and Dinerstein 1998, Mace et al. 2000, Myers et al. 2000). Unfor- tunately, the ability to focus strategically is hindered by the ab- sence of a global biodiversity map with sufficient biogeo- Although our ecoregions are intended primarily as units graphic resolution to accurately reflect the complex for conservation action, they are built on the foundations of distribution of the Earth’s natural communities. Without classical biogeography and reflect
BioScience – Oxford University Press
Published: Nov 1, 2001
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