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Impact of Environmental Covariation in Growth and Mortality on Evolving Maturation Reaction Norms ArchiMer
Marty, Lise; Dieckmann, Ulf; Rochet, Marie-joelle; Ernande, Bruno.
Maturation age and size have important fitness consequences through their effects on survival probabilities and body sizes. The evolution of maturation reaction norms in response to environmental covariation in growth and mortality is therefore a key subject of life-history theory. The eco-evolutionary model we present and analyze here incorporates critical features that earlier studies of evolving maturation reaction norms have often neglected: the trade-off between growth and reproduction, source-sink population structure, and population regulation through density-dependent growth and fecundity. We report the following findings. First, the evolutionarily optimal age at maturation can be decomposed into the sum of a density-dependent and a...
Tipo: Text Palavras-chave: Phenotypic plasticity; Growth-reproduction trade-off; Source-sink population structure; Density dependence; Selection gradient.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00035/14607/11988.pdf
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