Analysis of the data held in the 2004 IUCN Red List of Threatened Species. Includes sections discussing extinctions in recent time, causes of threat to species, where on the planet most threatened species occur and why, and examples of conservation actions that have proven effective in rescuing species from the brink of extinction.
Available to download.
Baillie, J.E.M., Hilton-Taylor, C. and Stuart, S.N. (editors). 2004. 2004 IUCN Red List of Threatened Species. A Global Species Assessment. IUCN, Gland, Switzerland and Cambridge, UK.