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dc.contributor.authorHamada, Neusa-
dc.contributor.authorMcCreadie, John William-
dc.contributor.authorAdler, Peter H.-
dc.date.accessioned2020-06-15T22:05:14Z-
dc.date.available2020-06-15T22:05:14Z-
dc.date.issued2002-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/19083-
dc.description.abstract1. The spatial distribution and species richness of blackflies were evaluated at 58 stream sites in Central Amazonia, Brazil. Samples were taken along a north-south axis of approximately 130 km and a east-west axis of approximately 220 km. 2. Based on stream-site characteristics, the occurrence of larvae of the six most frequently collected species was highly predictable (79.3-91.5% accuracy in prediction of occurrence). The predictive value of stream size and the presence of impoundments agrees with results of similar work in the Holarctic Region, suggesting a general responses of blackflies to environmental parameters. 3. Although only 19.0% of interstream variation in species richness was explained by a regression model, results suggested that species richness was greater in larger, cooler, faster, covered streams with rocky beds than in smaller, warmer, slower, open streams with sandy bottoms. Overall, the species richness of blackflies (11 species in total) was lower than in the temperate zone suggesting, for some taxa at least, that aquatic communities do not follow the terrestrial pattern of greater species richness in the tropics.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 47, Número 1, Pags. 31-40pt_BR
dc.rightsRestrito*
dc.subjectEnvironmental Factoren
dc.subjectSpatial Distributionen
dc.subjectSpecies Richnessen
dc.subjectStreamen
dc.subjectDipteraen
dc.subjectHexapodaen
dc.subjectInsectaen
dc.subjectSimuliidaeen
dc.titleSpecies richness and spatial distribution of blackflies (Diptera: Simuliidae) in streams of Central Amazonia, Brazilen
dc.typeArtigopt_BR
dc.identifier.doi10.1046/j.1365-2427.2002.00778.x-
dc.publisher.journalFreshwater Biologypt_BR
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