

Author: Lawrence J.M.
Publisher: Springer Publishing Company
ISSN: 0960-3115
Source: Biodiversity and Conservation, Vol.11, Iss.7, 2002-07, pp. : 1163-1171
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Abstract
For South African butterflies that congregate on hill summits, the vegetation type that clothes hills has a major influence on behaviour and species assemblages. Congregation of individuals occurred on grass-covered hills in a grassland matrix, while little congregation occurred on hills covered with undisturbed natural forest, nor on those with closely packed, mixed, plantation trees. Hill-summit congregation was not prevented by small differences in hilltop grassland vegetation type, nor by low densities of the alien plant Eucalyptus grandis. This study demonstrates the importance of taking into account the interplay of topography, vegetation type and architecture when planning for conservation.
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