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

By Craig Hilton-Taylor

ISBN-10: 2831705649

ISBN-13: 9782831705644

ISBN-10: 2831705657

ISBN-13: 9782831705651

Release of the 2000 pink checklist is an immense landmark for IUCN. it's the first time that listings of animals and vegetation were mixed and the 1st time that the crimson record has been produced on CD-ROM. The 2000 crimson record combines new assessments‹including all chook species, many antelope and bat species, such a lot primates and sharks, all Asian freshwater turtles, extra molluscs, and plenty of others‹with these from prior courses. the combo of animals and vegetation right into a unmarried checklist containing tests of greater than 18,000 taxa (11,000 of that are threatened species) and the stream in the direction of stronger documentation of every species at the record signifies that a hard-copy model of the pink checklist could run to numerous volumes. This, mixed with the truth that the purple record should be up to date each year, ended in the choice to free up the purple record in digital layout, through the realm vast net and as a CD-ROM.

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2000) which indicates 24% of USA conifers to be threatened. Similarly the 1997 IUCN Red List of Threatened Plants (Walter and Gillett 1998) lists 30% of conifers in the old Endangered (E) and Vulnerable (V) categories. As with many of the threatened vertebrates, the conifers are an ancient lineage indicating that perhaps non-random extinction is also happening in the plant Kingdom. A 13 Red List 2000 06 September 2000 16:14:11 Color profile: Generic CMYK printer profile Composite Default screen 2000 IUCN Red List of Threatened Species Table 4.

While lower down the list there are some major changes with Thailand (32 species) and the USA (29 species) being displaced from the top twenty by Cameroon (38 species) and the Russian Federation (35 species). Tanzania (38 species) has also moved up from 20th to 14th position. Comparing the results in Figures 2a, b and c shows that countries with high numbers of threatened species are not necessarily those with the highest percentages of their mammal faunas that are threatened. In particular, although seven African countries feature in the top 20 of total numbers of threatened species, only one of these, Madagascar (48 species or 34%) is within the upper quartile for the percentage of mammal species threatened.

As a result, this category does not appear in the top twenty habitats for mammals due to a sampling bias. Drier habitats such as semi-deserts, deserts, rocks and even temperate and coniferous forests are all utilized to some degree (in some cases exclusively) by a variety of threatened mammals. Threatened birds generally appear to avoid such areas. There are also some highly specialized habitats like bamboo and eucalyptus forests, which are important for a small number of threatened mammals, but which are not important for threatened birds.

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


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