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Simultaneous hermaphroditism and sexual selection


Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/1674

Simultaneous hermaphroditism and sexual selection

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Title: Simultaneous hermaphroditism and sexual selection
Author: Charnov, Eric
Subject: sperm competition
male-female conflict
double fertilization
Abstract: Theory about the evolution of sexual behavior in dioecious species is based on the general assumption that egg production is limited by a female's ability to garner resources to make eggs, not by a lack of sperm to fertilize them. Reproductive success for males is thus limited by access to females (and their eggs). I suggest that egg production by simultaneous hermaphrodites also obeys this principle--that fertilized egg production by an individual is not limited by sperm availability, but by resources allocated to eggs. If true, this suggests that sperm competition (reproduction success through male function) and a form of male-female conflict have played important roles in the evolution of hermaphroditism.
Date: 1979-05
Publisher: National Academy of Sciences
Citation: Charnov, E.L. 1979. Simultaneous hermaphroditism and sexual selection. Proceedings of the National Academy of Sciences USA 76:2480-2484
URI: http://hdl.handle.net/1928/1674

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