Sperm-depleted males influence the reproductive behaviour of conspecifics
(2014) Naturwissenschaften — p. 1-8 (2014)
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- In many insect species, sperm-depleted males (SDMs, i.e. males that have exhausted their sperm after a given number of matings) remain sexually active and continue to mate females. Here, we investigated the behavioural modifications that occur in both sexes of the parasitoid Asobara tabida Nees (Hymenoptera: Braconidae), after matings by fertile males and sperm-depleted males. We show that (i) virgin females, mated females and females mated to a SDM exhibited different behaviours and that (ii) males responded differently to females depending on whether the females had previously mated with an SDM or not. Our findings demonstrate that SDM influenced the reproductive behaviour of both males and females,especially with regard to male responsiveness and female attractiveness. These findings are discussed in the context of adaptive behaviour and fitness maximization in both males and females.
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Louapre, P., Llopis, S., Martel, V., & van Baaren, J. (2014). Sperm-depleted males influence the reproductive behaviour of conspecifics. Naturwissenschaften, 1-8. https://doi.org/10.1007/s00114-014-1227-6 (Original work published 2014)