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The interactive effects of environmental gradient and dispersal shape spatial phylogenetic patterns
Department of Biology, Lund University, Lund, Sweden.
Umeå University, Faculty of Science and Technology, Department of Mathematics and Mathematical Statistics. Advancing Systems Analysis Program, International Institute for Applied Systems Analysis, Laxenburg, Austria; Complexity Science and Evolution Unit, Okinawa Institute of Science and Technology Graduate University, Kunigami, Japan.ORCID iD: 0000-0001-9862-816x
Department of Biology, Lund University, Lund, Sweden.
2022 (English)In: Frontiers in Ecology and Evolution, E-ISSN 2296-701X, Vol. 10, article id 1037980Article in journal (Refereed) Published
Abstract [en]

Introduction: The emergence and maintenance of biodiversity include interacting environmental conditions, organismal adaptation to such conditions, and dispersal. To understand and quantify such ecological, evolutionary, and spatial processes, observation and interpretation of phylogenetic relatedness across space (e.g., phylogenetic beta diversity) is arguably a way forward as such patterns contain signals from all the processes listed above. However, it remains challenging to extract information about complex eco-evolutionary and spatial processes from phylogenetic patterns.

Methods: We link environmental gradients and organismal dispersal with phylogenetic beta diversity using a trait-based and eco-evolutionary model of diversification along environmental gradients. The combined effect of the environment and dispersal leads to distinct phylogenetic patterns between subsets of species and across geographical distances.

Results and discussion: Steep environmental gradients combined with low dispersal lead to asymmetric phylogenies, a high phylogenetic beta diversity, and the phylogenetic diversity between communities increases linearly along the environmental gradient. High dispersal combined with a less steep environmental gradient leads to symmetric phylogenies, low phylogenetic beta diversity, and the phylogenetic diversity between communities along the gradient increases in a sigmoidal form. By disentangling the eco-evolutionary mechanisms that link such interacting environment and dispersal effects and community phylogenetic patterns, our results improve understanding of biodiversity in general and help interpretation of observed phylogenetic beta diversity.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2022. Vol. 10, article id 1037980
Keywords [en]
adaptive radiation, dispersal, environmental gradient, phylogenetic beta diversity, phylogenetic patterns
National Category
Evolutionary Biology Biological Systematics Other Mathematics
Identifiers
URN: urn:nbn:se:umu:diva-202230DOI: 10.3389/fevo.2022.1037980ISI: 000904798800001Scopus ID: 2-s2.0-85145029730OAI: oai:DiVA.org:umu-202230DiVA, id: diva2:1724612
Available from: 2023-01-09 Created: 2023-01-09 Last updated: 2023-09-05Bibliographically approved

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Brännström, Åke

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CiteExportLink to record
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