Intraspecific and interspecific pre-adult competition on the neotropical region colonizer Zaprionus indianus (Diptera: Drosophilidae) under laboratory conditions

Bragantia

Luís Gustavo Da Conceição Galego¹  Claudia Marcia Aparecida Carareto¹ 

[1] ,Universidade Estadual Paulista IBILCE Departamento de BiologiaSão Josédo Rio Preto SP ,Brasil

关键词: Zaprionus indianus;    fitness components;    competitive interactions;    viability;    developmental time;    Zaprionus indianus;    valor adaptativo;    interações competitivas;    viabilidade;    tempo de desenvolvimento;   

DOI  :  10.1590/S0006-87052005000200012

来源: SciELO

【 摘 要 】

This study analyzes the pre-adult interactions of Zaprionus indianus, a recently-introduced species in Brazil, with two others Drosophilidae under laboratory conditions. The effects of larval residues on the viability and on the developmental time of Z. indianus, Drosophila simulans and D. sturtevanti were used to evaluate pre-adult competitive interactions, conditioning the culture medium with larval residues. Pre-adult interactions between Z. indianus, D. sturtevanti and D. simulans may affect their relative abundance over time, since the viability of Z. indianus was negatively affected by residues of D. sturtevanti, and its residues reduced the viability of D. simulans and the developmental time of both D. simulans and D. sturtevanti.

【 授权许可】

CC BY   
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