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. 1988 Mar;85(6):1878-82.
doi: 10.1073/pnas.85.6.1878.

Complex foraging polymorphism in bluegill sunfish

T J Ehlinger  1 , D S Wilson
Affiliations

Complex foraging polymorphism in bluegill sunfish

T J Ehlinger et al. Proc Natl Acad Sci U S A. 1988 Mar.

Abstract

The bluegill sunfish (Lepomis macrochirus) is considered a generalist predator, adept at feeding in both the littoral and open-water habitats of North American freshwater lakes. We demonstrate adaptive intraspecific variation in morphology and foraging behaviors within single lakes. This variation appears to make individual fish specialized for feeding in either the littoral or open-water habitat. Discovery of a complex polymorphism in such a well-studied species suggests that adaptive variation may be more common than is currently perceived.

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References

    1. Proc Natl Acad Sci U S A. 1987 Aug;84(15):5506-10 - PubMed
    1. Proc Natl Acad Sci U S A. 1986 Mar;83(5):1388-92 - PubMed

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