Emergence composition and phenology of Trichoptera from a tropical rainforest stream at El Verde, Puerto Rico

TitleEmergence composition and phenology of Trichoptera from a tropical rainforest stream at El Verde, Puerto Rico
Publication TypeJournal Article
Year of Publication1993
AuthorsJr, OSFlint, Masteller, EC
JournalJournal of the Kansas Entomological Society
Volume66
Pagination140-150
Accession NumberLUQ.165
KeywordsTrichoptera
Abstract

An emergence trap operated over a small mountain stream in Puerto Rico collected 2561 specimens of Trichoptera in a 12 month period. Sixteen species were collected, with a single species, Cariboptila orophila, comprising 78.2% of the emergence. Females made up 58% of the catch, although this varied somewhat depending on the taxon. There was a pronounced minimum in the emergence pattern in June and July with a secondary drop in November. The average annual rainfall pattern offers no clear correlation with emergence, but the November drop might have been correlated with a sharp peak in rainfall in October of 1990. There does seem to be some seasonality in flight periods of some species, but the more abundant species were present year round.

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