Morphological variation over ontogeny and environments in resource polymorphic arctic charr (Salvelinus alpinus).

  title={Morphological variation over ontogeny and environments in resource polymorphic arctic charr (Salvelinus alpinus).},
  author={Kevin J. Parsons and Sk{\'u}li Sk{\'u}lason and Moira M. Ferguson},
  journal={Evolution & development},
  volume={12 3},
Natural selection requires genetically based phenotypic variation to facilitate its action and cause adaptive evolution. It has become increasingly recognized that morphological development can become canalized likely as a result of selection. However, it is largely unknown how selection may influence canalization over ontogeny and differing environments. Changes in environments or colonization of a novel one is expected to result in adaptive divergence from the ancestral population when… CONTINUE READING
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