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Updated: Jun 23, 2026
04:52
Following the Dynamics of Structural Variants in Experimentally Evolved Populations
Published on: February 3, 2023
Eco-evolutionary dynamics: disentangling phenotypic, environmental and population fluctuations.
Thomas H G Ezard1, Steeve D Côté, Fanie Pelletier
1Imperial College London, Silwood Park Campus, Ascot, Berkshire, UK. thomas.ezard@imperial.ac.uk
Summary
Ecological and evolutionary processes both impact population growth. Phenotypic variability often plays a larger role than environmental variability, highlighting the need for integrated approaches to understand population dynamics.
Area of Science:
- Ecology
- Evolutionary Biology
- Population Dynamics
Background:
- Understanding population growth drivers is crucial for conservation.
- Ecological impacts on evolution are well-studied, but evolutionary impacts on ecology are less explored.
- Anthropogenic changes necessitate understanding both ecological and evolutionary contributions to population dynamics.
Purpose of the Study:
- To assess and contrast the relative importance of phenotypic and environmental variability on annual population growth.
- To apply a novel conceptual framework for analyzing population growth components.
- To investigate these dynamics in five distinct ungulate populations.
Main Methods:
- Utilized a recently published conceptual framework.
- Analyzed annual population growth data for five ungulate populations.
- Quantified contributions from phenotypic and environmental variability.
Main Results:
- Phenotypic variability exceeded environmental variability in four out of five populations.
- The difference between phenotypic and environmental contributions was not statistically significant.
- Both factors demonstrated substantial influence on population growth.
Conclusions:
- Phenotypic and environmental variability are both critical, non-negligible components of population growth.
- Integrated approaches are essential for a comprehensive understanding of population responses to environmental changes.
- Future research should consider the interplay between ecological and evolutionary factors in population dynamics.
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