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increased homozygosity

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Evolutionary consequences of direct competition for mates<br />

Selection for larger size, traits that facilitate fighting success<br />

- leads to dimorphism between sexes<br />

Fitness and male body size: viability vs. mating success<br />

Male marine iguanas are larger than the optimal size for survival,<br />

given available food resources (algae).<br />

11

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