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Biogeographic Realms

This is the current classification system used throughout this site.

Source: Olson, D.M., E. Dinerstein, E.D. Wikramanayake, N.D. Burgess, G.V.N. Powell, E.C. Underwood, J.A. D’Amico, I. Itoua, H.E. Strand, J.C. Morrison, C.J. Loucks, T.F. Allnutt, T.H. Ricketts, Y. Kura, J.F. Lamoreux, W.W. Wettengel, P. Hedao, and K.R. Kassem. Terrestrial Ecoregions of the World: A New Map of Life On Earth (PDF, 1.1M) BioScience 51:933-938. (2004) Subsequently modified and extended at UNEP-WCMC (2011).



In the future we may switch to this newer classification scheme following Holt et al. 2013 (doi:10.1126/science.1228282).