Genetic, Environmental, and Condition-dependent Effects on Female and Male Ornamentation in the Barn Owl Tyto Alba.


Secondary sexual characters are thought to indicate individual quality. Expression of sex-limited traits in an extravagant state may require both the underlying genes and the available nutrient resources. The assessment of the relative contribution of genes, environment, and body condition is relevant for understanding to that extent the extravagant trait… (More)
DOI: 10.1111/j.1558-5646.1998.tb02026.x