DISTRIBUTIONS OF OCCUPIED AND VACANT BUTTERFLY HABITATS IN FRAGMENTED LANDSCAPES

被引:232
作者
THOMAS, CD
THOMAS, JA
WARREN, MS
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,NERC,CTR POPULAT BIOL,ASCOT SL5 7PY,BERKS,ENGLAND
[2] INST TERR ECOL,FURZEBROOK RES STN,WAREHAM BH20 5AS,DORSET,ENGLAND
关键词
COLONIZATION; BIOGEOGRAPHY; EXTINCTION; INCIDENCE FUNCTION; METAPOPULATION;
D O I
10.1007/BF00317850
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
We found several rare UK butterflies to be restricted to relatively large and non-isolated habitat patches, while small patches and those that are isolated from population sources remain vacant. These patterns of occurrence are generated by the dynamic processes of local extinction and colonization. Habitat patches act as terrestrial archipelagos in which long-term population persistence, and hence effective long-term conservation, rely on networks of suitable habitats, sufficiently close to allow natural dispersal.
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页码:563 / 567
页数:5
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