Journal
JOURNAL OF INSECT BEHAVIOR
Volume 15, Issue 2, Pages 253-268Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1023/A:1015441101998
Keywords
Orchesella cincta; spermatophores; indirect sperm transfer; mating behavior
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Males of the springtail Orchesella cincta transfer their sperm indirectly using spermatophores. The present study aimed to investigate how individual males maximize their reproductive success. In an experiment examining the role of chemical communication, it appeared that the males deposit their spermatophores preferentially on patches which have been conditioned with conspecifics. Varying conditioning intensity resulted in a response which can be described by a saturation curve. In a comparison involving a related species the conditioning effect was strictly species specific. An experiment where the sexes were compared showed that conditioning with males exerts a slightly stronger effect than conditioning with females. In another experiment spermatophore depositing males showed a strong preference for patches with spermatophores of previous males, which they replaced with their own. An explanation for this may be that the males parasitize each other's scent marks. When a number of males are kept together they destroy most of each other's spermatophores. The destruction behavior is specifically displayed by males in their reproductive phase. Video recordings showed that deliberate destruction of spermatophores takes place by eating them and that the males are able to recognize and spare their own spermatophores.
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