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The contribution of evolvability to the eco-evolutionary dynamics of competing species
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- Bukkuri, Anuraag (author)
- H. Lee Moffitt Cancer Center & Research Institute
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- Pienta, Kenneth J. (author)
- Johns Hopkins University School of Medicine
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- Amend, Sarah R. (author)
- Johns Hopkins University School of Medicine
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- Austin, Robert H. (author)
- Princeton University
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- Hammarlund, Emma U. (author)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Molekylär evolution,Forskargrupper vid Lunds universitet,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Molecular Evolution,Lund University Research Groups
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- Brown, Joel S. (author)
- H. Lee Moffitt Cancer Center & Research Institute
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H Lee Moffitt Cancer Center & Research Institute Johns Hopkins University School of Medicine (creator_code:org_t)
- 2023
- 2023
- English.
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In: Ecology and Evolution. - 2045-7758. ; 13:10
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http://dx.doi.org/10... (free)
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Abstract
Subject headings
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- Evolvability is the capacity of a population to generate heritable variation that can be acted upon by natural selection. This ability influences the adaptations and fitness of individual organisms. By viewing this capacity as a trait, evolvability is subject to natural selection and thus plays a critical role in eco-evolutionary dynamics. Understanding this role provides insight into how species respond to changes in their environment and how species coexistence can arise and be maintained. Here, we create a G-function model of competing species, each with a different evolvability. We analyze population and strategy (= heritable phenotype) dynamics of the two populations under clade initiation (when species are introduced into a population), evolutionary tracking (constant, small changes in the environment), adaptive radiation (availability of multiple ecological niches), and evolutionary rescue (extreme environmental disturbances). We find that when species are far from an eco-evolutionary equilibrium, faster-evolving species reach higher population sizes, and when species are close to an equilibrium, slower-evolving species are more successful. Frequent, minor environmental changes promote the extinction of species with small population sizes, regardless of their evolvability. When several niches are available for a species to occupy, coexistence is possible, though slower-evolving species perform slightly better than faster-evolving ones due to the well-recognized inherent cost of evolvability. Finally, disrupting the environment at intermediate frequencies can result in coexistence with cyclical population dynamics of species with different rates of evolution.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- adaptive dynamics
- adaptive radiation
- eco-evolutionary dynamics
- evolutionary rescue
- evolutionary tracking
- evolvability
- G functions
Publication and Content Type
- art (subject category)
- ref (subject category)
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