Relationship between invertebrate fauna and bromeliad size

Brazilian Journal of Biology

Va. Araújo²  Sk. Melo¹  Apa. Araújo²  Mlm. Gomes¹  Maa. Carneiro¹ 

[1] ,Universidade Federal de Viçosa Departamento de Biologia Animal Programa de Pós Graduação em EntomologiaViçosa MG ,Brazil

关键词: species-area relationship;    phytotelmata fauna;    insects;    Bromeliaceae;    relação espécie-área;    fauna fitotelmata;    insetos;    Bromeliaceae;   

DOI  :  10.1590/S1519-69842007000400004

来源: SciELO

【 摘 要 】

Several bromeliads species store water and organic substrates, allowing the establishment of phytotelmata and associated fauna on their leaves. In this study, we sampled 70 individuals of Vriesea sp. (Carrière) (Bromeliaceae), in rupestrian fields in the Serra de Ouro Branco-MG, Brazil. The relationships between invertebrate species richness and abundance and size of bromeliads were tested using multiple regression. We found 19 species associated with bromeliads, mainly Diptera larvae. The abundance of the phytotelmate fauna increased principally in relation to the volume of water in the bromeliad reservoir. Phytotelmata richness was affected principally by diameter of the reservoir. There was a significant relationship between the abundance and richness of invertebrates associated with leaves with diameter and height of the plant. Invertebrate richness was better explained by abundance of individuals. These results suggest that the increase of richness was attended by higher numbers of microhabitats and more space for colonization of bigger bromeliads. Additionally, there was more chance of sampling different species in locales with greater abundance of individuals.

【 授权许可】

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