Female Age Determines Remating Behavior in Wild Mexican Fruit Flies

Autor: Yair Contreras-Navarro, Solana Abraham, Diana Pérez-Staples
Rok vydání: 2016
Předmět:
Zdroj: Journal of Insect Behavior. 29:340-354
ISSN: 1572-8889
0892-7553
Popis: Male and female age are important factors that can influence mating and remating behavior. Females can discriminate against or prefer older males, but there have been relatively fewer studies on how female and male age influence female remating. Here we showed in wild flies of the Mexican fruit fly Anastrepha ludens (Loew), that when females were given a choice between males of different ages, younger females preferred to mate with younger males over older males, while older females were less selective. Also, when given a choice between males of different ages, older females had longer copulation durations than younger females. On the other hand, older males and females had lower mating success, compared with young and middle-aged flies under no choice conditions. However, middle-aged females mated faster compared to young females and young males mated faster compared to middle-aged males. Male age did not influence female remating, while female age strongly determined female remating, with no females remating when they were old. It is unclear if female receptivity mechanisms are switched off at older ages, or if females are reluctant to remate due to possible costs of mating. We discuss our results in terms of how male and female age can influence mating decisions. Fil: Abraham, Solana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Planta Piloto de Procesos Industriales Microbiologicos; Argentina Fil: Contreras Navarro, Yair. Universidad Veracruzana. Instituto de Biotecnología y Ecología Aplicada; México Fil: Perez Staples, Diana Folger. Universidad Veracruzana. Instituto de Biotecnología y Ecología Aplicada; México
Databáze: OpenAIRE