Local distribution of blackfly (Diptera, Simuliidae) larvae in two adjacent streams: the role of water current velocity in the diversity of blackfly larvae

Revista Brasileira de Entomologia

Ronaldo Figueiró²  Érika Silva Do Nascimento²  Leonardo Henrique Gil-azevedo²  Marilza Maia-herzog²  Ricardo Ferreira Monteiro¹ 

[1],Fundação Oswaldo Cruz Instituto Oswaldo Cruz Laboratório de Simulídeos e Oncocercose, Referência Nacional em Simulídeos, Oncocercose e MansoneloseRio de Janeiro RJ ,Brasil

关键词: Co-occurrence;    diversity;    Neotropical;    Co-ocorrência;    diversidade;    Neotropical;   

DOI  :  10.1590/S0085-56262008000300020

来源: SciELO

【 摘 要 】

This study aimed to evaluate the influence of water velocity speed on the local distribution and taxocenosis structure of blackfly larvae. The larvae were collected from two adjacent streams located in the municipality of Angra dos Reis (RJ): Caputera River and one of its tributaries. Riffle litter patches were sampled randomly using a 30 x 30 cm quadrat. Four blackfly species were found: Simulium incrustatum s. l. Lutz, 1910; Simulium (Inaequalium) sp. ; Simulium pertinax s. l. Kollar, 1832 and Simulium subpallidum s. l. Lutz, 1909. Among these species, Simulium pertinax s. l. was clearly associated with higher water current speeds, while Simulium subpallidum s. l. showed association with lower water velocities, and Simulium (Inaequalium) sp. had a relatively constant distribution along the water current gradient.

【 授权许可】

CC BY-NC-ND   
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