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Vincent L'Hérault, Alastair Franke, Nicolas Lecomte, Adam Alogut and Joël Bêty Landscape heterogeneity drives intra-population niche variation and reproduction in an arctic top predator Ecology and Evolution 3

Version of Record online: 24 JUL 2013 | DOI: 10.1002/ece3.675

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Intra-population variability in resource use by consumer species has been recently associated with landscape heterogeneity. By combining data on isotopic niche with a long-term data set on reproduction, we documented an effect of the heterogeneous breeding environments on the diet and the reproductive output of a top predator, the peregrine falcon. Within a terrestrial/marine gradient of habitat, peregrine falcons predominantly consumed terrestrial prey, but individuals nesting at the marine end produced fewer young than their conspecifics nesting at the terrestrial end.

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