Abstract
This study examined the effect of single, double, and triple matings on female lifetime fecundity in two closely related species of beetle, Callosobruchus analis and C. maculatus. Multiple mating resulted in elevated lifetime fecundities in both species, although the pattern of elevation differed between the two species. When oviposition resource was plentiful the elevation was apparent after a second but not a third copulation for C. maculatus and after a second and after a third for C. analis. By altering the availability of oviposition sites to C. maculatus females, we were able to alter the pattern of fecundity elevation between matings. When oviposition sites were limited, fecundity increased after a third mating but not a second mating. We suggest that the pattern of fecundity elevation associated with multiple mating in these species is primarily the result of oviposition stimulants delivered by males, rather than a nutritional “donation” brought about by the metabolism of ejaculates. We also suggest that the intra- and interspecific differences in the relationship between mating frequency and fecundity are the result of differences in egg maturation rates.
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Wilson, N., Tufton, T.J. & Eady, P.E. The Effect of Single, Double, and Triple Matings on the Lifetime Fecundity of Callosobruchus analis and Callosobruchus maculatus (Coleoptera: Bruchidae). Journal of Insect Behavior 12, 295–306 (1999). https://doi.org/10.1023/A:1020883220643
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DOI: https://doi.org/10.1023/A:1020883220643