Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"Trivers-Willard hypothesis"”.
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Patterns of Parental Spending: Do Parents Spend More Money on Sons or Daughters?
… from 2008 through 2010, this study tests the hypothesis that parents with adolescent girls spend more money on apparel, beauty and hygiene products, health care, and education compared to parents with adolescent boys. An interaction effect for gender and socioeconomic status by parental …
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Sex Ratios and the City: Is parental corticosterone a mediator of the relationship between urbanization and offspring sex allocation?
<p>The Trivers-Willard hypothesis states that mothers can adjust their offspring sex ratios according to their own condition and the environmental conditions they face during breeding. Past tests of this hypothesis in avian species have focused on how natural variation shapes sex allocation …
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A model-based test of the efficacy of a simple rule for predicting adaptive sex allocation
The division of resources between male and female reproductive function is defined as sex allocation. The usefulness of simple rules to predict adaptive sex-allocation decisions has been a contentious topic. Simple rules are difficult to apply when the biological details of the life cycle are …