Influence of previous sexual experience and post-emergence rearing conditions on the mating behavior ofChryseida bennetti |
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Authors: | Gabriela Prez-Lachaud Mireille Campan |
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Institution: | (1) Laboratoire d’Ethologie et de Psychologie Animale, URA CNRS no 1837, Université Paul Sabatier, 118 Route de Narbonne, 31062, Toulouse Cédex, France;(2) Present address: El Colegio de la Frontera Sur, Apdo. Postal 36, 30700 Tapachula, Chiapas, Mexico |
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Abstract: | Experiments were carried out to study the possible effects of a (first) sexual experience and prior rearing conditions on
the subsequent sexual behavior ofChryseida bennetti (Hymenoptera: Eurytomidae), an ectoparasitoid of the bean weevilAcanthoscelides obtectus (Say) (Coleoptera: Bruchidae). A clear reduction in latency before male courtship was observed in experienced males. Multiple
matings were performed both by naive and experienced males. A tendency to reduce the post-mating courtship behavior duration
was observed in experienced males, although this reduction was not significant. Rearing conditions also seem to influence
the mating behavior of this species: the number of copulations (with the same female) was reduced when males were reared in
groups. On the contrary, isolated males performed multiple matings with both grouped and isolated females, although they mated
3 times only with isolated ones. Again, a reduction of the duration of the post-mating courtship behavior was observed both
in grouped males and grouped or isolated females. It seems likely that males that have been reared in groups benefit from
a certain influence of social experience that is reflected on their later sexual behavior. |
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Keywords: | Chryseida bennetti sexual behavior courtship previous experience rearing conditions Hymenoptera Eurytomidae |
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