Patterns of Ecological Specialisation Among Multiple Piscivorous Morphs of a Diverse Assemblage of Salvelinus Fishes
Evgeny V. Esin,
Fedor N. Shkil,
Elena V. Shulgina
et al.
Abstract:Adaptive radiation is considered to be a major source of biodiversity in charrs of the genus Salvelinus. These fishes demonstrate numerous examples of diversification in postglacial lakes and rivers resulting in the emergence of different ecomorphs, including piscivorous. Usually, the number of fish feeders does not exceed two, suggesting the existence of ecological and/or internal factors that prevent further diversification. Under these circumstances, rare instances of increases in the number of piscivorous … Show more
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