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Related Concept Videos

The Evidence for Evolution02:55

The Evidence for Evolution

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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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Evolutionary Relationships through Genome Comparisons02:54

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Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
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Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
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What is Natural Selection?01:32

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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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Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
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Democratizing evolutionary biology, lessons from insects.

Robert R Dunn1, DeAnna E Beasley2

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Current Opinion in Insect Science
|December 13, 2016
PubMed
Summary
This summary is machine-generated.

Citizen science, especially using insects, boosts evolutionary research by expanding collections and discoveries. Public participation in insect studies is key to monitoring global evolutionary trends in changing environments.

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Area of Science:

  • Evolutionary biology
  • Entomology
  • Citizen Science

Background:

  • Public engagement in science is a long-standing practice.
  • Technological advancements have amplified the role of citizen scientists in evolutionary studies.
  • Insects are valuable model organisms for studying evolutionary processes across diverse scales.

Purpose of the Study:

  • To review the impact of insect-based citizen science on evolutionary research.
  • To highlight how citizen science initiatives contribute to specimen collection and research questions.
  • To emphasize the potential of citizen science for global-scale monitoring of evolutionary trends.

Main Methods:

  • Review of existing literature and case studies on insect-based citizen science.
  • Analysis of contributions to specimen collections and data generation.
  • Assessment of how citizen science has influenced research questions and discoveries.

Main Results:

  • Insect-based citizen science has significantly expanded entomological collections.
  • Citizen observations have led to reframed research questions and unexpected discoveries.
  • The public's involvement facilitates tracking evolutionary changes in human-modified landscapes.

Conclusions:

  • Insect-based citizen science is a powerful tool for advancing evolutionary biology.
  • Public participation is crucial for monitoring evolutionary trends globally, especially in rapidly changing environments.
  • Future efforts should leverage citizen science to understand insect evolution at a global scale.