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Intraspecific variation in the egg-spacing behavior of the seed beetle Callosobruchus maculatus


, : Intraspecific variation in the egg-spacing behavior of the seed beetle Callosobruchus maculatus. Journal of Insect Behavior, 26: 727-742

Females of Callosobruchus maculatus tend to distribute their eggs uniformly among host seeds and, thereby, reduce competition among larvae within seeds. Variability in this behaviour was assessed by assaying beetles from 7 geographic strains on each of 3 host species. To quantify egg-spacing behaviour, an index (U) was devised that estimates the uniformity of the egg distribution but is independent of the number of eggs laid.

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