Flexibility and the use of indicator taxa in the selection of sites for nature reserves

作     者：Hopkinson, P Travis, JMJ Evans, J Gregory, RD Telfer, MG Williams, PH 

作者机构：Univ London Imperial Coll Sci Technol & Med NERC Ctr Populat Biol Ascot SL5 7PY Berks England NERC Ctr Ecol & Hydrol Biol Records Ctr Huntingdon PE17 2LS England Univ London Imperial Coll Sci Technol & Med Dept Biol Ascot SL5 7PY Berks England 

出 版 物：《BIODIVERSITY AND CONSERVATION》 (生物品种与保护)

年 卷 期：2001年第10卷第2期

页      面：271-285页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 09[农学] 0713[理学-生态学] 

基　　金：Natural Environment Research Council, NERC Biological Records Centre 

主　　题：biodiversity near-minimum sets priorities protected areas selection algorithm 

摘      要： Minimum sets of complementary areas represent all species in a region a given number of times. In recent years, conservation assessments have centred around the the evaluation of these minimum sets. Previous research shows little overlap between minimum sets and existing nature reserves and between minimum sets Cur different taxonomic groups. The latter has been used as an argument to discount the use of indicator taxa in the selection of sites for nature reserves. However, these minimum set analyses have only considered a single set for each taxonomic group when there are, in fact. a large number of equally valid minimum sets. We present new methods for evaluating all of these alternative minimum sets. Wt demonstrate that if all of the sets are evaluated, significantly higher levels of overlap are found between minimum sets and nature reserves, and pairs of minimum sets for different taxonomic groups. Furthermore, significantly higher proportions of species from non-target taxonomic groups are recorded in the minimum sets of target Stoups Our results suggest that previous conservation assessments using minimum sets may have been unduly pessimistic.