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  2. Competition (biology) - Wikipedia

    en.wikipedia.org/wiki/Competition_(biology)

    Competition lowers the fitness of both organisms involved since the presence of one of the organisms always reduces the amount of the resource available to the other. [2] In the study of community ecology, competition within and between members of a species is an important biological interaction.

  3. Contest competition - Wikipedia

    en.wikipedia.org/wiki/Contest_competition

    In ecology, contest competition refers to a situation where available resources, such as food and mates, are utilized only by one or a few individuals, thus preventing development or reproduction of other individuals. It refers to a hypothetical situation in which several individuals stage a contest for which one eventually emerges victorious.

  4. Intraspecific competition - Wikipedia

    en.wikipedia.org/wiki/Intraspecific_competition

    An example of direct competition. Intraspecific competition is an interaction in population ecology , whereby members of the same species compete for limited resources. This leads to a reduction in fitness for both individuals, but the more fit individual survives and is able to reproduce. [ 1 ]

  5. Competition - Wikipedia

    en.wikipedia.org/wiki/Competition

    Competition within, between, and among species is one of the most important forces in biology, especially in the field of ecology. [5]Competition between members of a species ("intraspecific") for resources such as food, water, territory, and sunlight may result in an increase in the frequency of a variant of the species best suited for survival and reproduction until its fixation within a ...

  6. Interspecific competition - Wikipedia

    en.wikipedia.org/wiki/Interspecific_competition

    Interspecific competition, in ecology, is a form of competition in which individuals of different species compete for the same resources in an ecosystem (e.g. food or living space). This can be contrasted with mutualism, a type of symbiosis. Competition between members of the same species is called intraspecific competition.

  7. Allee effect - Wikipedia

    en.wikipedia.org/wiki/Allee_effect

    The term "Allee principle" was introduced in the 1950s, a time when the field of ecology was heavily focused on the role of competition among and within species. [ 1 ] [ 3 ] The classical view of population dynamics stated that due to competition for resources, a population will experience a reduced overall growth rate at higher density and ...

  8. Competitive exclusion principle - Wikipedia

    en.wikipedia.org/wiki/Competitive_exclusion...

    Yellow adapts to a new niche restricted to the top and bottom and avoiding competition. In ecology, the competitive exclusion principle, [1] sometimes referred to as Gause's law, [2] is a proposition that two species which compete for the same limited resource cannot coexist at constant population values. When one species has even the slightest ...

  9. Community (ecology) - Wikipedia

    en.wikipedia.org/wiki/Community_(ecology)

    A bear with a salmon. Interspecific interactions such as predation are a key aspect of community ecology.. In ecology, a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biocoenosis, biotic community, biological community, ecological community, or life assemblage.