Quantifying heritability and estimating evolutionary potential in the wild when individuals that share genes also share environments

Laura Gervais, Nicolas Morellet, Ingrid David, Mark Hewison, Denis Reale, Michel Goulard, Yannick Chaval, Bruno Lourtet, Bruno Cargnelutti, Joel Merlet, Erwan Quéméré & Benoit Pujol
Accurate heritability estimates for fitness-related traits are required to predict an organism’s ability to respond to global change. Heritability estimates are theoretically expected to be inflated if, due to limited dispersal, individuals that share genes are also likely to share similar environments. However, if relatives occupy similar environments due, at least partly, to genetic variation for habitat selection, then accounting for environmental similarity in quantitative genetic models may result in diminished heritability estimates in wild...
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