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Fronhofer EA, Bonte D, Bestion E, Cote J, Deshpande JN, Duncan AB, Hovestadt T, Kaltz O, Keith SA, Kokko H, Legrand D, Malusare SP, Parmentier T, Saade C, Schtickzelle N, Zilio G, Massol F. Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new? Philos Trans R Soc Lond B Biol Sci 2024; 379:20230142. [PMID: 38913061 DOI: 10.1098/rstb.2023.0142] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 05/01/2024] [Indexed: 06/25/2024] Open
Abstract
Dispersal is a well-recognized driver of ecological and evolutionary dynamics, and simultaneously an evolving trait. Dispersal evolution has traditionally been studied in single-species metapopulations so that it remains unclear how dispersal evolves in metacommunities and metafoodwebs, which are characterized by a multitude of species interactions. Since most natural systems are both species-rich and spatially structured, this knowledge gap should be bridged. Here, we discuss whether knowledge from dispersal evolutionary ecology established in single-species systems holds in metacommunities and metafoodwebs and we highlight generally valid and fundamental principles. Most biotic interactions form the backdrop to the ecological theatre for the evolutionary dispersal play because interactions mediate patterns of fitness expectations across space and time. While this allows for a simple transposition of certain known principles to a multispecies context, other drivers may require more complex transpositions, or might not be transferred. We discuss an important quantitative modulator of dispersal evolution-increased trait dimensionality of biodiverse meta-systems-and an additional driver: co-dispersal. We speculate that scale and selection pressure mismatches owing to co-dispersal, together with increased trait dimensionality, may lead to a slower and more 'diffuse' evolution in biodiverse meta-systems. Open questions and potential consequences in both ecological and evolutionary terms call for more investigation. This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.
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Affiliation(s)
- Emanuel A Fronhofer
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | - Dries Bonte
- Terrestrial Ecology Unit (TEREC), Department of Biology, Ghent University, K.L. Ledeganckstraat 35 , Ghent B-9000, Belgium
| | - Elvire Bestion
- Station d'Ecologie Théorique et Expérimentale, CNRS, UAR 2029 , Moulis F-09200, France
| | - Julien Cote
- Laboratoire Évolution & Diversité Biologique, CNRS, Université Toulouse III Paul Sabatier, IRD, UMR 5174, 118 route de Narbonne , Toulouse F-31062, France
| | - Jhelam N Deshpande
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | - Alison B Duncan
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | - Thomas Hovestadt
- Department Animal Ecology and Tropical Biology, Biozentrum, University of Würzburg , Würzburg 97074, Germany
| | - Oliver Kaltz
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | - Sally A Keith
- Lancaster Environment Centre, Lancaster University , Lancaster LA1 4YQ, UK
| | - Hanna Kokko
- Institute of Organismic and Molecular Evolution, Johannes Gutenberg University , Mainz 55128, Germany
| | - Delphine Legrand
- Station d'Ecologie Théorique et Expérimentale, CNRS, UAR 2029 , Moulis F-09200, France
| | - Sarthak P Malusare
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | - Thomas Parmentier
- Terrestrial Ecology Unit (TEREC), Department of Biology, Ghent University, K.L. Ledeganckstraat 35 , Ghent B-9000, Belgium
- Research Unit of Environmental and Evolutionary Biology, Namur Institute of Complex Systems, and Institute of Life, Earth, and the Environment, University of Namur , Namur 5000, Belgium
| | - Camille Saade
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | | | - Giacomo Zilio
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
| | - François Massol
- Institut Pasteur de Lille, Univ. Lille, CNRS, Inserm, CHU Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille , Lille 59000, France
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Thierry M, Cote J, Bestion E, Legrand D, Clobert J, Jacob S. The interplay between abiotic and biotic factors in dispersal decisions in metacommunities. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230137. [PMID: 38913055 DOI: 10.1098/rstb.2023.0137] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 03/01/2024] [Indexed: 06/25/2024] Open
Abstract
Suitable conditions for species to survive and reproduce constitute their ecological niche, which is built by abiotic conditions and interactions with conspecifics and heterospecifics. Organisms should ideally assess and use information about all these environmental dimensions to adjust their dispersal decisions depending on their own internal conditions. Dispersal plasticity is often considered through its dependence on abiotic conditions or conspecific density and, to a lesser extent, with reference to the effects of interactions with heterospecifics, potentially leading to misinterpretation of dispersal drivers. Here, we first review the evidence for the effects of and the potential interplays between abiotic factors, biotic interactions with conspecifics and heterospecifics and phenotype on dispersal decisions. We then present an experimental test of these potential interplays, investigating the effects of density and interactions with conspecifics and heterospecifics on temperature-dependent dispersal in microcosms of Tetrahymena ciliates. We found significant differences in dispersal rates depending on the temperature, density and presence of another strain or species. However, the presence and density of conspecifics and heterospecifics had no effects on the thermal-dependency of dispersal. We discuss the causes and consequences of the (lack of) interplay between the different environmental dimensions and the phenotype for metacommunity assembly and dynamics. This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.
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Affiliation(s)
- Mélanie Thierry
- Station d'Ecologie Théorique et Expérimentale, UAR 2029, CNRS , Moulis 09200, France
| | - Julien Cote
- Centre de Recherche sur la Biodiversité et l'Environnement (CRBE), UMR 5300 CNRS-IRD-TINP-UT3 Université Toulouse III - Paul Sabatier, Bât. 4R1, 118 route de Narbonne , Toulouse Cedex 9 31062, France
| | - Elvire Bestion
- Station d'Ecologie Théorique et Expérimentale, UAR 2029, CNRS , Moulis 09200, France
| | - Delphine Legrand
- Station d'Ecologie Théorique et Expérimentale, UAR 2029, CNRS , Moulis 09200, France
| | - Jean Clobert
- Station d'Ecologie Théorique et Expérimentale, UAR 2029, CNRS , Moulis 09200, France
| | - Staffan Jacob
- Station d'Ecologie Théorique et Expérimentale, UAR 2029, CNRS , Moulis 09200, France
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Bonte D, Keith S, Fronhofer EA. Species interactions and eco-evolutionary dynamics of dispersal: the diversity dependence of dispersal. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230125. [PMID: 38913054 DOI: 10.1098/rstb.2023.0125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/07/2024] [Indexed: 06/25/2024] Open
Abstract
Dispersal plays a pivotal role in the eco-evolutionary dynamics of spatially structured populations, communities and ecosystems. As an individual-based trait, dispersal is subject to both plasticity and evolution. Its dependence on conditions and context is well understood within single-species metapopulations. However, species do not exist in isolation; they interact locally through various horizontal and vertical interactions. While the significance of species interactions is recognized for species coexistence and food web functioning, our understanding of their influence on regional dynamics, such as their impact on spatial dynamics in metacommunities and meta-food webs, remains limited. Building upon insights from behavioural and community ecology, we aim to elucidate biodiversity as both a driver and an outcome of connectivity. By synthesizing conceptual, theoretical and empirical contributions from global experts in the field, we seek to explore how a more mechanistic understanding of diversity-dispersal relationships influences the distribution of species in spatially and temporally changing environments. Our findings highlight the importance of explicitly considering interspecific interactions as drivers of dispersal, thus reshaping our understanding of fundamental dynamics including species coexistence and the emergent dynamics of metacommunities and meta-ecosystems. We envision that this initiative will pave the way for advanced forecasting approaches to understanding biodiversity dynamics under the pressures of global change. This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.
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Affiliation(s)
- Dries Bonte
- Department of Biology, Ghent University, K.L. Ledeganckstraat 35 , Gent B-9000, Belgium
| | - Sally Keith
- Lancaster Environment Centre, Lancaster University , Lancaster LA1 4YQ, UK
| | - Emanuel A Fronhofer
- ISEM, University of Montpellier, CNRS, IRD, EPHE , Montpellier 34095, France
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