Temporal and spatial patterns of butterfly diversity in a lowland tropical rainforest
1996; Springer Science+Business Media; Linguagem: Inglês
10.1007/978-94-009-1685-2_12
ISSN2215-1729
AutoresAlbert G. Orr, Christoph Haeuser,
Tópico(s)Plant and animal studies
ResumoIn nearly two years of regular sampling 324 species of butterfly were recorded from the lowland rainforest within one kilometer of the Kuala Belalong Field Studies Centre (KBFSC), Batu Apoi forest reserve, Temburong, Brunei Darussalam. This represents over one third of the Bornean fauna and perhaps over half the total fauna of the area. Records are biased towards the more conspicuous Papilionidae and Pieridae with relatively smaller proportions of Nymphalidae, Lycaenidae and Hesperiidae being represented. Samples taken at approximately monthly intervals indicated relatively slight variation in species richness. However there was a steady turnover in species composition, presumably the result of changing species abundance relationships as most of the more common species experienced substantial and irregular fluctuations in numbers. Some closely related species pairs showed phenological dissociation in abundance, but many were phenologically unrelated or were positively associated. There was no evidence for seasonal trends in community composition or in the phenology of any particular species. While many species ranged freely throughout the area, some were more or less restricted to either riverbanks and open areas, the forest understorey, or the canopy, subcanopy and tops of major ridges. Certain Lycaenidae and Hesperiidae were extremely localized, being sometimes restricted to an area of a few hundred m2, presumably in the vicinity of their larval hostplants.
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