Spatial Dynamics of a Patchily Distributed Butterfly Species
1992; Wiley; Volume: 61; Issue: 2 Linguagem: Inglês
10.2307/5334
ISSN1365-2656
AutoresChris D. Thomas, Susan Harrison,
Tópico(s)Wildlife Ecology and Conservation
ResumoNine metapopulations of the butterfly Plebejus argus were mapped in North Wales in 1983 and 1990. The metapopulations occured in three biotopes; five were in heathland, one in mossland and three in limestone grassland. Within metapopulations, local distributions of the butterfly corresponded to the spatial distributions of suitable habitat : P. argus was able to colonize virtually all suitable habitat patches that were less than 1 km from existing, populated patches. In contrast, the regional distribution was constrained by the inability of the butterfly to colonize suitable habitat that was further than a fex kilometres from existing metapopulation; some of these sites are now populated by P.argus following successful introductions
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