Abstract
This study aimed to evaluate fitness components of Zaprionus indianus Gupta, 1970, a species recently introduced in Brazil and currently in process of colonization. Longevity, productivity, developmental speed and viability of flies sampled from a population from Mirassol (state of São Paulo, Brazil) were evaluated. Longevity was higher than that of some Indian populations and productivity was similar or higher than in other Drosophilidae. Time of development, one of the main fitness components for competition, was very similar to the values scored in Drosophila sturtevanti Duda, 1927, a species that occurs in high frequencies in the same area as Z. indianus. These data might contribute further for understanding the colonization success of this newcomer species in South America.
Highlights
Departamento de Biologia, IBILCE, Universidade Estadual Paulista, Rua Cristóvão Colombo, 2265, 15054-000 São José do Rio Preto, ABSTRACT
Neste estudo foram avaliados componentes do valor adaptativo de Zaprionus indianus Gupta, 1970, uma espécie recentemente introduzida no Brasil e, atualmente, em processo de colonização de praticamente todas as regiões brasileiras
Zaprionus Coquillett, 1901 is a genus composed by the subgenera Zaprionus, which contains 44 species from Afrotropical region (CHASSAGNARD & TSACAS, 1993; CHASSAGNARD, 1996) and Anaprionus, with 12 species from Australia and Southeastern Asia
Summary
Departamento de Biologia, IBILCE, Universidade Estadual Paulista, Rua Cristóvão Colombo, 2265, 15054-000 São José do Rio Preto, ABSTRACT. Virgin males (150) and females (150) emerged from these vials were used to study longevity of sexually active and sexually inactive flies, productivity and developmental speed.
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