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Observing character displacement from process to pattern in a novel vertebrate community

Author

Listed:
  • James T. Stroud

    (Georgia Institute of Technology)

  • Sean T. Giery

    (Ohio University)

  • Robert J. P. Heathcote

    (University of Oxford)

  • Sarin Tiatragul

    (The Australian National University)

  • Michael L. Yuan

    (University of California)

  • Kenneth J. Feeley

    (University of Miami)

  • Jonathan B. Losos

    (Washington University in St. Louis)

Abstract

Ecological character displacement, whereby shifts in resource use in the presence of competing species leads to adaptive evolutionary divergence, is widely considered an important process in community assembly and adaptive radiation. However, most evidence for character displacement has been inferred from macro-scale geographic or phylogenetic patterns; direct tests of the underlying hypothesis of divergent natural selection driving character displacement in the wild are rare. Here, we document character displacement between two ecologically similar lizards (Anolis sagrei and A. cristatellus) experiencing novel contact. We identify directional selection during the incipient stages of sympatry in a new community that corresponds to repeated trait divergence across multiple established sympatric communities. By identifying the role of natural selection as character displacement unfolds, we connect how natural selection operating at short timescales may drive broader patterns of trait distributions at larger spatial and temporal scales.

Suggested Citation

  • James T. Stroud & Sean T. Giery & Robert J. P. Heathcote & Sarin Tiatragul & Michael L. Yuan & Kenneth J. Feeley & Jonathan B. Losos, 2024. "Observing character displacement from process to pattern in a novel vertebrate community," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-54302-1
    DOI: 10.1038/s41467-024-54302-1
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    References listed on IDEAS

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    1. Bates, Douglas & Mächler, Martin & Bolker, Ben & Walker, Steve, 2015. "Fitting Linear Mixed-Effects Models Using lme4," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 67(i01).
    2. Simon N. Wood, 2011. "Fast stable restricted maximum likelihood and marginal likelihood estimation of semiparametric generalized linear models," Journal of the Royal Statistical Society Series B, Royal Statistical Society, vol. 73(1), pages 3-36, January.
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