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2 days ago · If natural selection favors an average phenotype by selecting against extreme variation, the population will undergo stabilizing selection. For example, in a population of mice that live in the woods, natural selection will tend to favor individuals that best blend in with the forest floor and are less likely to be spotted by predators.
Conclusions. Many ecologists primarily interested in population dynamics have been sceptical of the relevance of genetics and natural selection in their research. Historically, this view stems from the belief that selection is invariably density dependent or soft, with negligible reciprocal effects on density itself.
- Ilik Saccheri, Ilkka Hanski
- 2006
Jun 1, 2006 · Many ecologists primarily interested in population dynamics have been sceptical of the relevance of genetics and natural selection in their research. Historically, this view stems from the belief that selection is invariably density dependent or soft, with negligible reciprocal effects on density itself.
- Ilik Saccheri, Ilkka Hanski
- 2006
Evo 101. Natural Selection. Natural selection is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift. Darwin’s grand idea of evolution by natural selection is relatively simple but often misunderstood. To see how it works, imagine a population of beetles: There is variation in traits.
Apr 9, 2009 · Natural selection is one of the central mechanisms of evolutionary change and is the process responsible for the evolution of adaptive features. Without a working knowledge of natural selection, it is impossible to understand how or why living things have come to exhibit their diversity and complexity. An understanding of natural selection also is becoming increasingly relevant in practical ...
- T. Ryan Gregory
- rgregory@uoguelph.ca
- 2009
Summary. Populations are regulated by a variety of density-dependent and density-independent factors. Species are divided into two categories based on a variety of features of their life history patterns: r -selected species, which have large numbers of offspring, and K -selected species, which have few offspring.
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This page titled 8.2.5: Population Dynamics and Regulation is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by OpenStax via source content that was edited to the style and standards of the LibreTexts platform. The logistic model of population growth, while valid in many natural populations and a useful model, is a ...
