Global hotspots of species richness are not congruent with endemism or threat

Orme, C. David L. and Davies, Richard G. and Burgess, Malcolm and Eigenbrod, Felix and Pickup, Nicola and Olson, Valerie A. and Webster, Andrea J. and Ding, Tzung-Su and Rasmussen, Pamela C. and Ridgely, Robert S. and Stattersfield, Ali J. and Bennett, Peter M. and Blackburn, Tim M. and Gaston, Kevin J. and Owens, Ian P. F. (2005) Global hotspots of species richness are not congruent with endemism or threat. Nature, 436 (7053). pp. 1016-1019. ISSN 0028-0836. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Biodiversity hotspots have a prominent role in conservation biology(1-9), but it remains controversial to what extent different types of hotspot are congruent(4,10-14). Previous studies were unable to provide a general answer because they used a single biodiversity index, were geographically restricted, compared areas of unequal size or did not quantitatively compare hotspot types(1-10,12-22). Here we use a new global database on the breeding distribution of all known extant bird species to test for congruence across three types of hotspot. We demonstrate that hotspots of species richness, threat and endemism do not show the same geographical distribution. Only 2.5% of hotspot areas are common to all three aspects of diversity, with over 80% of hotspots being idiosyncratic. More generally, there is a surprisingly low overall congruence of biodiversity indices, with any one index explaining less than 24% of variation in the other indices. These results suggest that, even within a single taxonomic class, different mechanisms are responsible for the origin and maintenance of different aspects of diversity. Consequently, the different types of hotspots also vary greatly in their utility as conservation tools.

Item Type: Article
Additional information: ISI Document Delivery No.: 955XQ Times Cited: 85 Cited Reference Count: 27
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
G Geography. Anthropology. Recreation > GN Anthropology
Divisions: Faculties > Social Sciences > School of Anthropology and Conservation > DICE (Durrell Institute of Conservation and Ecology)
Depositing User: C.G.W.G. van-de-Benderskum
Date Deposited: 08 Oct 2008 15:50
Last Modified: 09 May 2014 09:17
Resource URI: (The current URI for this page, for reference purposes)
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