By Craig Hilton-Taylor
Release of the 2000 purple checklist is a big landmark for IUCN. it's the first time that listings of animals and crops were mixed and the 1st time that the pink checklist has been produced on CD-ROM. The 2000 pink 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 prior guides. the combo of animals and vegetation right into a unmarried checklist containing exams of greater than 18,000 taxa (11,000 of that are threatened species) and the circulate in the direction of more suitable documentation of every species at the record implies that a hard-copy model of the crimson checklist could run to numerous volumes. This, mixed with the truth that the crimson record may be up-to-date each year, resulted in the choice to unlock the crimson checklist in digital layout, through the area large net and as a CD-ROM.
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Additional info for 2000 IUCN red list of threatened species
In using these figures, it was assumed that any taxonomic differences with the Red List would be negligible. However, given the recent significant changes in primate taxonomy, which have been adopted in the 2000 Red List, this may affect some results slightly. A further problem with the mammal data is that the distributions of many of the cetaceans are not recorded by country, hence these species were excluded from the analysis. The bird data also presented a problem in that the total numbers used were for breeding birds only (WCMC 2000).
2000). Combining the results from the total numbers of threatened mammals, birds and plants provides some indication of the degree of congruence between the different groups (see Figure 6). These very preliminary results indicate that there is not 100% congruence in any of these groups and that conservation planning has to bear this in mind. The only areas where conservation will clearly be of benefit to all three groups is in the Neotropics (Brazil, Colombia, Ecuador and Mexico), East Africa (Tanzania) and Southeast Asia (China, India, Indonesia and Malaysia).
Under the BirdLife habitat classification system, occurrence within a habitat is also graded as to whether it is a critical habitat for the species or a minor one. In the system used for the IUCN Red List, occurrence is recorded simply as presence/absence only. 26 Red List 2000 06 September 2000 16:14:54 Color profile: Generic CMYK printer profile Composite Default screen Analysis The next set of habitats which are important to both birds and mammals, includes grasslands, shrublands, and the tropical monsoon and dry forest.