Orchid bee fauna responds to habitat complexity on a savanna area (Cerrado) in Brazil.
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2016
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Resumo
Here we investigated responses of orchid bee assemblages to habitat
complexity, with the aim of assessing complexity as a useful surrogate for
species diversity of this group. For the purposes of our study, we defined
habitat complexity as the heterogeneity in the arrangement in physical
structure of habitat (vegetation), although there is a large range of
operational definitions in the literature. We test the following hypotheses:
(i) There is a greater species richness and abundance of orchid bee in
sites with high habitat complexity than lower habitat complexity; (ii) High
habitat complexity sites have a different species composition of orchid bee
than lower habitat complexity sites. In fact, orchid bee species richness
was higher in high complexity areas while community composition was
not affected by habitat complexity, due to the effect of dominant species.
Habitat complexity, measured as a function of differences in multiple
strata in forests, may be of great worth as a surrogate for the diversity of
a range of arthropod groups including orchid bees.
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Orchid bee assemblage, Habitat complexity, Species composition
Citação
ITABAIANA, Y. A. et al. Orchid bee fauna responds to habitat complexity on a savanna area (Cerrado) in Brazil. Sociobiology, v. 63, p. 819, 2016. Disponível em: <http://periodicos.uefs.br/index.php/sociobiology/article/view/1038>. Acesso em: 25 ago. 2017.