By Jonathan Baillie
This research of the knowledge inside the 2004 IUCN crimson record of Threatened Species presents an perception into the prestige and developments of the world’s species of vegetation and animals, with a spotlight on these at maximum chance of extinction. The book highlights the taxonomic teams and species which are on the maximum threat of extinction; fresh documented extinctions; traits within the prestige of threatened species, together with the recent crimson record Index; areas of the area the place threatened species are typically chanced on; the threats which are riding species in the direction of extinction; the social and fiscal context during which extinctions are occurring; and the conservation responses which are to be had. This extensive research is the 1st significant booklet via the crimson record Consortium, a gaggle of corporations comprising IUCN (in specific the Species Survival Commission), BirdLife overseas, Conservation foreign (in specific the heart for utilized Biodiversity Science), and NatureServe.
Read or Download A 2004 IUCN Red list of threatened species: A Global Species Assessment (Occasional Paper of the Iucn Species Survival Commission) PDF
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Extra resources for A 2004 IUCN Red list of threatened species: A Global Species Assessment (Occasional Paper of the Iucn Species Survival Commission)
While a number of these species are restricted-range coral reef fishes, some are widespread, commercially valuable species subject to fisheries. As there are so few marine fishes on the IUCN Red List it is premature to analyse the information any further. 3 on the chondrichthyan fishes illustrates some of the issues and the extent to which some marine species are threatened. 16 Nassau Grouper Epinephelus striatus (Endangered) is found from Bermuda and Florida throughout the Bahamas and Caribbean Sea.
Most of the increase in numbers of threatened animals is due to the incorporation of assessments for all amphibian species for the first time (the number of threatened amphibians increased from 146 in 2000 to 1,856). Although there are more threatened species, the proportions of each taxonomic group threatened, with the exception of that for the amphibians, has remained much the same as in 2000. , for fishes a net gain of 48 threatened species and a gain of 3,500 described species). The birds are the only taxonomic group for which since 2000 there has been a decrease in the number of recognized species (9,946 to 9,917) and an increase in the number threatened (1,130 to 1,213).
06% and 73%. Hence, although 41% of all species on the IUCN Red List are listed as threatened, this figure needs to be treated with extreme caution given the biases described above. ** It should be noted that for certain species endemic to Brazil, there was not time to reach agreement on the Red List Categories between the Global Amphibian Assessment (GAA) Coordinating Team, and the experts on the species in Brazil. org) are those that were agreed at the GAA Brazil workshop in April 2003. However, in the subsequent consistency check conducted by the GAA Coordinating Team, many of these were found to be inconsistent with the approach adopted elsewhere in the world, and a "consistent Red List Category" was also assigned to these species.