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Phenotypic plasticity in the morphology of small benthic Icelandic Arctic charr (Salvelinus alpinus) [Ecology of Freshwater Fish]

Keywords : adaptation, biodiversity, ecological factors, evolutionary ecology, groundwater, Iceland

par Frédéric Magné - publié le

Intraspecific phenotypic diversity is the raw material for evolution, so understanding its origin and maintenance is critically important for conservation of biodiversity. Intraspecific diversity in a trait or a suite of traits can result from genetic diversity and/or phenotypic plasticity. The two are, however, not independent as plasticity has been shown to evolve. In this study, we evaluated the importance of phenotypic plasticity in generating morphological diversity in populations of small benthic Arctic charr in Iceland, using a rearing experiment with contrasting modes of feeding.(...)

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