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Related Concept Videos

What is Population Genetics?01:25

What is Population Genetics?

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A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
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Gene Flow02:39

Gene Flow

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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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Mutation, Gene Flow, and Genetic Drift01:09

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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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Conservation of Small Populations02:04

Conservation of Small Populations

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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Genetics of Speciation02:16

Genetics of Speciation

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Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
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Related Experiment Video

Updated: Aug 22, 2025

Deploying Community Scientists to Conduct Nondestructive Genetic Sampling of Rare Butterfly Populations
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Population Genomics for Insect Conservation.

Matthew T Webster1, Alexis Beaurepaire2,3, Peter Neumann2,3

  • 1Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden;

Annual Review of Animal Biosciences
|November 14, 2022
PubMed
Summary
This summary is machine-generated.

Global insect declines threaten ecosystems and food security. Population genomics offers a powerful approach to understand insect population trends and inform conservation strategies for these vital invertebrates.

Keywords:
conservation genomicsdeleterious mutationsgenetic adaptationgenome assemblyinsect declines

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Area of Science:

  • Ecology and Conservation Biology
  • Genetics and Genomics

Background:

  • Insects are crucial for ecosystem function, but face global declines due to human activities like habitat loss and pollution.
  • Conservation genetics has historically prioritized vertebrates, overlooking invertebrates like insects, which represent most biodiversity.
  • Understanding insect population dynamics is vital for food security and ecosystem health.

Purpose of the Study:

  • To review the application of population genomics in insect conservation.
  • To highlight how genomic data can inform strategies to avert insect declines.
  • To assess the potential of population genomics for identifying vulnerable insect populations and their adaptive capacity.

Main Methods:

  • Review of current research applying population genomics to insect conservation.
  • Analysis of how genomic tools address key conservation issues like demographic history and adaptation.
  • Examination of the role of reference genome assemblies in population genomics studies.

Main Results:

  • Population genomics provides precise inference of past demographic changes and recent declines.
  • Genomic analyses can quantify genetic load, delineate species, and assess adaptation to stressors.
  • This approach identifies insect populations most vulnerable to future threats.

Conclusions:

  • Population genomics is a powerful tool for insect conservation, enabling targeted strategies.
  • Further research and application of genomics are essential to address insect declines.
  • Genomic insights can guide efforts to protect insect biodiversity and ecosystem services.