Dinamica de populações de Ithomiinae (Lep., Nymphalidae) em Sumare-SP

AUTOR(ES)
DATA DE PUBLICAÇÃO

1980

RESUMO

A study was made on the adult population dynamics of five species of ithomiine butterflies present at the Sumaré Forestry Station (Horto Florestal de Sumaré), state of São Paulo, Brazil (?22 GRAUS? 49? S, ?47 GRAUS? 17? W) in modified vegetation. Estimates of population parameters were obtained through mark and recapture data using the Lincoln-Petersen index and the Jolly-Seber Method. Population of Mechanitis polymnia, Mechanitis lysimnia and Hypothyris ninonia demonstrated very similar seasonal patterns in their population dynamics. Populations reproduce and grow during the rainy season, this being interrupted during the dray winter months when these brightly colored mimetic species aggregate in ?pochets? and reach their largest population sizes. In constrast, Dircenna dero disperses greatly, has small population sizes and does not concentrate in dry-season aggregations. This species reproduces principally in open areas of the Horto Florestal during the fall and winter. The population of the fifth ithomiine species, Mcclungia salonina, is restricted to the moist woods where Mechanitis and Hypothyris form their winter aggregations. Its population dynamics differs considerably from that of the other species. The population builds up during summer and the beginning of fall reaching its greatest density in May. After this time, the population falls to very low levels which are maintained during the winter and spring... Note: The complete abstract is available with the full electronic digital thesis or dissertations

ASSUNTO(S)

borboleta

ACESSO AO ARTIGO

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