Jordan H Hartman1,2, Joel Corush2, Eric R Larson1

  • 1Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, Illinois, USA.

Molecular ecology
|April 29, 2024
PubMed
概括

与入侵性鱼类的杂交威胁到本地生物多样性. 生态利基模型和DNA测序显示,入侵鱼类的成功与息地适宜性和远离入侵源的距离有关,而不是本地鱼类的抵抗力.

相关概念视频

Speciation Rates01:07

Speciation Rates

Overview
21.2K
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.
35.1K
Hybrid Zones02:29

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
17.0K
Ecological Niches02:02

Ecological Niches

All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
23.6K
Formation of Species01:31

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
39.2K
Competition02:34

Competition

When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.
21.5K