Fig. 1

The geographical distribution of “rapidly declining” amphibian species based on the primary cause of their decline: significant habitat loss (“reduced habitat”, shades of green); heavy extraction by humans (“over exploited”, shades of blue); and unknown processes where suitable habitat remains (“enigmatic decline”, shades of red). Intermediate colours are shown in cases where equal numbers of species are experiencing two types of decline in the same cell, as shown in the key. Darker colours correspond to larger numbers of rapidly declining species. From Stuart et al. [3]. Reprinted with permission from AAAS