Water transparency drives intra-population divergence in Eurasian Perch (Perca fluviatilis).

ABSTRACT: Trait combinations that lead to a higher efficiency in resource utilization are important drivers of divergent natural selection and adaptive radiation. However, variation in environmental features might constrain foraging in complex ways and therefore impede the exploitation of critical resources. We tested the effect of water transparency on intra-population divergence in morphology of Eurasian perch (Perca fluviatilis) across seven lakes in central Sweden. Morphological divergence between near-shore littoral and open-water pelagic perch substantially increased with increasing water transparency. Reliance on littoral resources increased strongly with increasing water transparency in littoral populations, whereas littoral reliance was not affected by water transparency in pelagic populati

SUBMITTER: Bartels P 

PROVIDER: S-EPMC3422328 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature