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Related Concept Videos

Evolutionary Psychology01:20

Evolutionary Psychology

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Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
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The Evidence for Evolution02:55

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Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
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What is Evolutionary History?02:35

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Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
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Natural Selection and Adaptation01:15

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Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
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Criticisms of the Evolutionary Perspective01:23

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In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
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Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
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Related Experiment Video

Updated: Dec 24, 2025

Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
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The Role of Evolution in Shaping Ecological Networks.

Simon T Segar1, Tom M Fayle2, Diane S Srivastava3

  • 1Biology Centre, Czech Academy of Sciences, Institute of Entomology, Branisovska 1760, 370 05 Ceske Budejovice, Czech Republic; University of South Bohemia in Ceske Budejovice, Faculty of Science, Branisovska 1760, 370 05 Ceske Budejovice, Czech Republic; Department of Crop and Environment Sciences, Harper Adams University, Newport, Shropshire, TF10 8NB, UK.

Trends in Ecology & Evolution
|April 16, 2020
PubMed
Summary

Evolution shapes ecological networks across all scales. Understanding ecoevolutionary dynamics is crucial for predicting community assembly and responses to environmental change.

Keywords:
adaptive networkecoevolutionecophylogeneticsmetacommunitymicroevolutionphylogeny

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Network Science

Background:

  • Ecological network structure and dynamics are influenced by evolutionary history.
  • Ecoevolutionary processes play a pervasive role in shaping biotic interactions.
  • Evolutionary influences are observable at both macroevolutionary and local scales.

Purpose of the Study:

  • To review recent research on the role of evolution in ecological networks.
  • To propose a framework for future research integrating evolutionary and ecological perspectives.
  • To highlight the importance of evolutionary dimensions for understanding community assembly and predicting network responses.

Main Methods:

  • Appraisal of recent relevant research.
  • Emphasis on process-based models.
  • Inclusion of experimental evolution and phenotypic variation studies.
  • Consideration of diverse spatial and temporal scales.

Main Results:

  • Evolutionary processes are fundamental drivers of ecological network structure and dynamics.
  • The impact of evolution is evident across various spatial and temporal scales.
  • Integrating evolutionary dimensions is essential for advancing ecological understanding.

Conclusions:

  • Future research should prioritize process-based models, experimental evolution, and phenotypic variation.
  • A comprehensive understanding of ecological networks requires incorporating evolutionary perspectives.
  • This integration is key to predicting community assembly and network responses to global changes.