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Population Biology of the Endangered Fluminense Swallowtail Butterfly Parides ascanius (Papilionidae: Papilioninae: Troidini)

2013; The Lepidopterists' Society; Volume: 67; Issue: 1 Linguagem: Inglês

10.18473/lepi.v67i1.a3

0024-0966

Elisa Vieira Herkenhoff, Ricardo Ferreira Monteiro, Alexandre Pimenta EsperanÇO, André Victor Lucci Freitas,

Genetic diversity and population structure

A population of Parides ascanius butterflies was studied for 12 months in Rio de Janeiro, SE Brazil. The population size was approximately 10–20 individuals with a maximum of 50 individuals. Sex ratio was biased, with males dominating in most months. The residence time was 12.7 ± 10.1 days for males, with a maximum of 28 days. Males travel distances of up to 400 m, but most individuals were recaptured within 150 to 250 m of their original capture site. Our results show that P. ascanius has a relatively long adult life span and maintains high population numbers, suggesting that habitat loss rather than population attributes explains its rarity and endangered status.