Polyandry and fitness in the western harvester ant, Pogonomyrmex occidentalis |
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Authors: | Wiernasz Diane C Perroni Christina L Cole Blaine J |
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Institution: | Program in Evolutionary Biology and Ecology, Department of Biology and Biochemistry, University of Houston, Houston, TX 77204-5001, USA. dwiernasz@uh.edu |
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Abstract: | Using four highly polymorphic microsatellite markers (12-28 alleles), we gentoyped workers from 63 colonies of Pogonomyrmex occidentalis. Colonies have a single, multiply mated queen, and an average number of 6.3 patrilines per colony. Colony growth was measured over an 8-year period in the study population. Intracolonial relatedness and colony growth are correlated negatively, indicating a substantial fitness benefit to multiple mating. |
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Keywords: | fitness growth mating frequency microsatellites relatedness |
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