Extinction risk assessment for birds through quantitative criteria.
240 - 246.
The system used for classifying species according to their risk of extinction in international Red Lists is currently being revised by the International Union for Conservation of Nature. The proposed system is based around a set of quantitative criteria and aims to provide a more explicit and objective method that can be applied across a wide variety of living forms. The first major application has been in the preparation of a new edition of Birds to Watch, a summary of threatened bird species at a global level, by BirdLife International. Analysis of the classification of bird species in this publication indicates that the proportion of birds though to be threatened varies across regions from c14% in New Zealand and 12% in Africa down to 3% in Europe. There are some significant differences among regions in the kinds of criteria that lead to threatened listing, with continuing or expected declines in numbers of habitat being especially significant in Africa and Europe. -Authors
|Title:||Extinction risk assessment for birds through quantitative criteria|
|UCL classification:||UCL > School of Life and Medical Sciences > Faculty of Life Sciences > Biosciences (Division of) > Genetics, Evolution and Environment|
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