期刊
BIODIVERSITY AND CONSERVATION
卷 12, 期 2, 页码 279-287出版社
SPRINGER
DOI: 10.1023/A:1021934910722
关键词
biodiversity hotspots; endemism; alpha-index; species density; species-area relationship
On the basis of 121 areas worldwide, the regressions of plant species-area relationships and of endemism-area relationships in log-log space are calculated. These formulae form the basis for calculating alpha-values. alpha-Values determine the ranking of biodiversity hotspots. In most cases, areas which have been published as biodiversity hotspots are characterized by high values of alpha, i.e. by rich compositions of vascular plant species and high rates of endemism.
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