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Tipping points in the dynamics of speciation
Patrik Nosil1, Jeffrey L Feder2, Samuel M Flaxman3
1Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK.
Nature Ecology & Evolution
|August 17, 2017
Summary
Speciation, the formation of new species, can occur suddenly through tipping points. Understanding these complex evolutionary shifts may benefit from methods used in other scientific fields.
Area of Science:
- Evolutionary Biology
- Genetics
- Complex Systems Science
Background:
- Speciation, the evolutionary process by which new biological species arise, can manifest gradually or abruptly.
- Inferring the precise genetic mechanisms driving speciation patterns remains a significant challenge in evolutionary biology.
Purpose of the Study:
- To explore the role of emergent and non-linear properties in speciation.
- To investigate how tipping points, characterized by sudden shifts, influence the differentiation of species.
- To propose the application of complex systems analysis tools to speciation research.
Main Methods:
- Conceptual analysis of speciation processes.
- Drawing parallels between speciation dynamics and regime shifts in other complex systems.
- Identifying key features of tipping points, including positive feedback, indirect selection, and modularity.
Main Results:
- Speciation can involve non-linear dynamics where small genetic changes at tipping points lead to substantial differentiation.
- Tipping points in speciation are associated with positive feedback, indirect selection across genomic regions, and system bi-stability.
- These characteristics are analogous to sudden regime shifts observed in diverse systems like cellular biology and ecology.
Conclusions:
- Complex systems theory and analytical tools offer a promising framework for understanding the intricacies of speciation.
- Adopting interdisciplinary approaches can enhance our ability to infer the processes driving evolutionary diversification.
- Further research applying complex systems methodologies to speciation is warranted.
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