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Dispersal evolution alters evolution-mediated priority effects in a metacommunity.

Maxime Fajgenblat1,2, Luc De Meester1,3,4,5, Mark C Urban6

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Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|June 24, 2024
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Summary
This summary is machine-generated.

Evolution influences species distribution through dispersal. In species-poor environments, evolving dispersal traits strengthens these evolution-mediated priority effects, impacting biodiversity patterns.

Keywords:
adaptive evolutiondispersal evolutioneco-evolutionmetacommunitypriority effects

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Biodiversity Science

Background:

  • Predicting species distribution is crucial for understanding biodiversity.
  • Ecological niche, dispersal, and evolution interact to shape species distributions.
  • Evolution-mediated priority effects, where early-arriving species adapt and influence later arrivals, can alter biodiversity.

Purpose of the Study:

  • To investigate how the evolution of dispersal influences evolution-mediated priority effects.
  • To model the interplay between species adaptation, dispersal evolution, and biodiversity patterns.
  • To understand the role of dispersal evolution in species-poor communities.

Main Methods:

  • Development of an individual-based model simulating competing species.
  • Modeling adaptation to local environments and evolution of dispersal probabilities.
  • Analysis of biodiversity patterns under different dispersal evolution scenarios.

Main Results:

  • Lower regional species diversity selected for higher dispersal probabilities and stronger evolution-mediated priority effects.
  • When all species evolved dispersal, patch monopolization decreased and occurred at similar rates.
  • When only one species evolved dispersal, it showed reduced dispersal and monopolized habitats after overcoming gene flow limitations.

Conclusions:

  • Dispersal evolution significantly shapes evolution-mediated priority effects, particularly in species-poor communities.
  • These effects are more pronounced in environments with greater ecological opportunity.
  • Dispersal and evolution-mediated priority effects are likely important in species-poor regions and changing environments.