Summary
Females of the tiger blue butterfly (Tarucus theophrastus) fly upwind in search of the larval hostplant. Males perch or patrol the downwind edges, searching for incoming females or those already on the bush. A model of competitive mate-searching is developed for the case where not all receptive females are contacted by searching males: the model differs from the earlier ones of Parker (1970, 1974), particularly when few males are involved. Observed distributions of males upon bushes of different sizes agree better with the predictions of the game theory model than with a random distribution of males. The described model may be widely applicable to populations where females remate, but frequently evade detection by searching males.
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Courtney, S.P., Parker, G.A. Mating behaviour of the tiger blue butterfly (Tarucus theophrastus): competitive mate-searching when not all females are captured. Behav Ecol Sociobiol 17, 213–221 (1985). https://doi.org/10.1007/BF00300139
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DOI: https://doi.org/10.1007/BF00300139