Sex ratios in laboratory and field populations of the old field mouse,Peromyscus polionotus |
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| Authors: | Michael H. Smith |
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| Affiliation: | (1) Department of Zoology and Institute of Ecology, University of Georgia, USA;(2) Present address: Savannah River Ecology Laboratory, SROO, Box A, 29801 Aiken, South Carolina, USA |
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| Abstract: | Summary Males outnumbered females as juveniles but not as adults among mice captured by hand in their burrows. The higher production of male offspring together with their higher mortality rate resulted in a 1∶1 sex ratio for the adult mice. Despite the equal abundance of each sex, more males than females were caught in traps. Males must have a higher chance of encountering a trap and/or of entering a trap after finding it. |
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