Download 2000 IUCN red list of threatened species by Craig Hilton-Taylor PDF

By Craig Hilton-Taylor

Release of the 2000 purple checklist is a massive landmark for IUCN. it's the first time that listings of animals and vegetation were mixed and the 1st time that the purple checklist has been produced on CD-ROM. The 2000 purple record combines new assessments‹including all poultry species, many antelope and bat species, so much primates and sharks, all Asian freshwater turtles, extra molluscs, and lots of others‹with these from earlier courses. the combo of animals and vegetation right into a unmarried record containing exams of greater than 18,000 taxa (11,000 of that are threatened species) and the movement in the direction of greater documentation of every species at the checklist implies that a hard-copy model of the pink checklist may run to numerous volumes. This, mixed with the truth that the crimson checklist may be up-to-date every year, resulted in the choice to unencumber the pink record in digital structure, through the realm large net and as a CD-ROM.

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Extra resources for 2000 IUCN red list of threatened species

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28 Red List 2000 06 September 2000 16:14:55 Color profile: Generic CMYK printer profile Composite Default screen Analysis Habitat loss/Degradation Direct loss/Exploitation Indirect loss Alien invasive species Natural disaster Atmospheric pollution Land/Water pollution Birds Mammals Plants Intrinsic factors 0 20 40 60 80 Percentage of threatened species Direct loss/exploitation Habitat loss/degradation Figure 9. Major threats to threatened birds, mammals and plants, using level one categories of threat from Annex 5 and moving alien invasive species to level one.

1,173, 720 and 2,274). 29 Red List 2000 06 September 2000 16:14:55 Color profile: Generic CMYK printer profile Composite Default screen 2000 IUCN Red List of Threatened Species Intrinsic factors Factors such as poor dispersal, poor recruitment, high juvenile mortality and inbreeding have been grouped together as intrinsic factors and they appear to have a relatively important impact on 231 threatened mammal species (32% of all) and 208 threatened plant species (9% of all), whereas only 18 threatened birds were scored under this threat category.

Clearly, when the threats to mammals are better documented, it is likely that the causes of habitat loss will be more comprehensively attributed to agricultural activities, extraction and development, thus possibly leading to results that are more similar to those for birds and plants. In an analysis of the threats faced by threatened species in the USA (Wilcove et al. 2000), habitat loss and degradation emerged as the greatest threat affecting more than 80% of threatened species. Direct loss and exploitation Figure 9 shows that direct loss and exploitation also has a major impact on birds (37% of all), mammals (34% of all) and plants (8% of all).

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