The biotic and abiotic contexts of ecological selection mediate the dominance of distinct dispersal strategies in competitive metacommunities

Author:

Khattar Gabriel1ORCID,Savary Paul1ORCID,Peres-Neto Pedro R.1ORCID

Affiliation:

1. Laboratory of Community and Quantitative Ecology, Department of Biology, Concordia University , Montreal, Quebec H4B 1R6, Canada

Abstract

While the influence of dispersal on ecological selection is the subject of intense research, we still lack a thorough understanding of how ecological selection operates to favour distinct dispersal strategies in metacommunities. To address this issue, we developed a model framework in which species with distinct quantitative dispersal traits that govern the three stages of dispersal—departure, movement and settlement—compete under different ecological contexts. The model identified three primary dispersal strategies (referred to as nomadic, homebody and habitat-sorting) that consistently dominated metacommunities owing to the interplay of spatiotemporal environmental variation and different types of competitive interactions. We outlined the key characteristics of each strategy and formulated theoretical predictions regarding the abiotic and biotic conditions under which each strategy is more likely to prevail in metacommunities. By presenting our results as relationships between dispersal traits and well-known ecological gradients (e.g. seasonality), we were able to contrast our theoretical findings with previous empirical research. Our model demonstrates how landscape environmental characteristics and competitive interactions at the intra- and interspecific levels can interact to favour distinct multivariate and context-dependent dispersal strategies in metacommunities. This article is part of the theme issue ‘Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics’.

Funder

Natural Sciences and Engineering Research Council of Canada

Canada Research Chairs

Publisher

The Royal Society

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Species interactions and eco-evolutionary dynamics of dispersal: the diversity dependence of dispersal;Philosophical Transactions of the Royal Society B: Biological Sciences;2024-06-24

2. The biotic and abiotic contexts of ecological selection mediate the dominance of distinct dispersal strategies in competitive metacommunities;Philosophical Transactions of the Royal Society B: Biological Sciences;2024-06-24

3. Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new?;Philosophical Transactions of the Royal Society B: Biological Sciences;2024-06-24

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