Article
Fluctuating selection and the maintenance of individual and sex-specific diet specialization in free-living oystercatchers.
Evolution; international journal of organic evolution - 1 Mar 2010
van de Pol Martijn, Brouwer Lyanne, Ens Bruno J, Oosterbeek Kees, Tinbergen Joost M
Abstract excerpt
Fluctuating and disruptive selection are important mechanisms for maintaining intrapopulation trait variation. Nonetheless, few field studies quantify selection pressures over long periods and identify what causes them to fluctuate. Diet specialists in oystercatchers differ in short-term payoffs (intake), but their long-term payoffs are hypothesized to be condition dependent. We test whether phenotypic selection...
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