Abstract
We studied the mating system of the emerald damselflyLestes sponsa. All males showed intense contact mate guarding by holding the female in tendem during the entire oviposition period. Our findings support the predictions made by Alcock (1994) about the occurrence of intense mate guarding: (1) a high female receptivity after copulation, (2) a high male capacity to resist takeovers, (3) sperm precedence, (4) a high operational sex ratio, (5) a high male density, (6) high access by rivals to mated females, (7) low energy expenditure, (8) a low risk of guarding, and (9) a short interval between copula and oviposition. This indicates a positive cost-benefit balance for this behavior, at least in males. A comparison within the genusLestes suggests that the male-biased sex ratios and the ease with which mated females are detected have been strong selection pressures in the evolution of intense contact mate guarding.
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Stoks, R., De Bruyn, L. & Matthysen, E. The adaptiveness of intense contact mate guarding by males of the emerald damselfly,Lestes sponsa (Odonata, Lestidae): The male’s perspective. J Insect Behav 10, 289–298 (1997). https://doi.org/10.1007/BF02765561
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DOI: https://doi.org/10.1007/BF02765561