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The following are a selection of graphics from the 2004 IUCN Red List and Global Species Assessment.
Percentages of mammal, bird and amphibian species in each Red List Category.
The pie charts exclude the categories Extinct, Extinct in the Wild and Not Evaluated.
The Red List Index (RLI) for all bird species for 1998-2004 and a preliminary RLI for all amphibians for 1980-2004 (retrospective assessment).
Sample sizes: birds: 250 genuine status changes out of 2,469 species in categories Extinct in the Wild (EW) to Near Threatened (NT) in at least one assessment; amphibians: 496 out of 2,225 species. Error bars for 2004 RLI value for birds based on estimated number of genuine status changes for 2000-2004 not yet detected owing to information time-lags (see Appendix 2d of the Global Species Assessment for further details of methods).
Numbers of threatened mammals, birds and amphibians occurring in each biome (proportion of threatened species indicated in red).
Threatened species richness maps for four taxonomic groups.
Clockwise from top left: mammals (marine species excluded); birds; amphibians; and turtles (at a half-degree resolution). Dark red colours correspond to higher richness, dark blue to lowest. Colour scale based on 10 equal-area classes. Maximum richness equals 25 species for mammals, 25 species for birds, 16 species of turtles, and 44 species for amphibians.
The major threats to globally threatened mammal, amphibian and bird species (definitions of high, medium and low impact for birds are given in Appendix 2f of the Global Species Assessment).
The total number of threatened species of mammals, birds and amphibians compared to human population density.
Country level map of the total number of threatened species of mammals, birds and amphibians compared to Gross National Income (GNI) per capita in 2003.
Habitat and site-based conservation responses: (a) needed and in place for all species and for threatened species of amphibians, and (b) needed for globally threatened birds.
Density map of "gap" species (those species with no protection over any part of their distribution range) of mammals, amphibians, freshwater turtles and tortoises, and threatened birds per half-degree cell, created by overlaying the ranges of all threatened species not covered by any protected area.
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