Effects of Mate Size and Mate Number on Male Reproductive Success in Plants
1989
Nakamura, Robert R. | Stanton, Maureen L. | Mazer, Susan J.
Hermaphroditic plants gain fitness through both female and male reproductive success (RS). We present and equation for estimat6ing male RS in panmicitic populations of self—incompatible plants with perfect flowers. The results of the simulations conducted using this model demonstrate that male RS and plant gender are sensitive to the frequency distribution of mate size and to the number of mates. When the frequency distribution of lower number per plant is changed from normal to L—shaped, the male fitness function decelerates with increasing flower number. Compared to large populations, in small populations small individuals will reproduce relatively more through pollen, while large individuals will be relatively more female.
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