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Sexual Selection in Natural Populations

One area of active research in our lab centers on the mechanisms of sexual selection and animal reproductive ecology. We are particularly interested in the ecological context of sexual selection, including how fluctuating sex ratios and population densities might alter selection gradients. We are also interested in learning how pre-copulatory, peri-copulatory, and post-copulatory reproductive fitness components interact to determine individuals' overall reproductive success. As part of this work, we study the evolutionary phenomenon of sperm precedence, a key fitness component reflecting differences in the relative paternity success achieved by mating males. We anticipate that this work will ultimately help us understand how Darwinian selection shapes the behavior, morphology, and physiology of organisms.

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