,

Robyn E Shaw1,2,3,4,5, Katherine A Farquharson6,7, Michael W Bruford1,8,9

  • 1International Union for the Conservation of Nature (IUCN) Conservation Genetics Specialist Group (CGSG).

Nature
|January 29, 2025
PubMed
まとめ

地球上の遺伝的多様性は 人間の活動によって減少しています 環境の改善と 人口の繋がりに焦点を当てた 標的型の保全活動は 絶滅危惧種の 遺伝的多様性を維持し 増やすのに役立ちます

関連する概念動画

Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

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).
57.9K
What is Population Genetics?01:25

What is Population Genetics?

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.
57.4K
Genetic Drift03:33

Genetic Drift

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.
39.3K
Gene Flow02:39

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
34.7K
What is Genetic Engineering?00:49

What is Genetic Engineering?

Overview
73.4K
Biodiversity and Human Values01:24

Biodiversity and Human Values

Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
13.0K