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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. 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 ]

  4. 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.

  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. 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 ...

  8. Ecological niche - Wikipedia

    en.wikipedia.org/wiki/Ecological_niche

    As an example of niche partitioning, several anole lizards in the Caribbean islands share common diets—mainly insects. They avoid competition by occupying different physical locations. Although these lizards might occupy different locations, some species can be found inhabiting the same range, with up to 15 in certain areas. [38]

  9. 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 ...