Diet and trophic groups of an aquatic insect community in a tropical stream

Brazilian Journal of Biology

R. L. Motta¹  V. S. Uieda¹ 

[1] ,Universidade Estadual Paulista Instituto de Biociências Departamento de ZoologiaBotucatu SP ,Brazil

关键词: aquatic insects;    diet;    trophic groups;    tropical stream;    insetos aquáticos;    dieta;    grupos tróficos;    riacho tropical;   

DOI  :  10.1590/S1519-69842004000500010

来源: SciELO

【 摘 要 】

The diet and trophic groups of an assemblage of aquatic insects were studied in a tropical stream. Genera of the orders Ephemeroptera, Odonata, Plecoptera, Lepidoptera, and Hemiptera showed feeding specialization. Others, such as Trichoptera, Coleoptera, and Diptera, showed great diet variation with genera of different trophic groups. Seasonal variation of insect diet, evident only for some genera of the orders Trichoptera, Lepidoptera, Coleoptera, and Diptera, was due to the differences observed in community composition and to generalist habits of these genera. However, the seasonal comparison of trophic groups showed no significant statistical differences. The great importance of organic matter, a non-limited resource, in the diet of Ribeirão do Atalho aquatic insects may be the explanation for the trophic stability in this community organization.

【 授权许可】

CC BY   
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