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  2. Competition (biology) - Wikipedia

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

    Male-male competition in red deer during rut is an example of interference competition within a species. During interference competition, also called contest competition, organisms interact directly by fighting for scarce resources. For example, large aphids defend feeding sites on cottonwood leaves by ejecting smaller aphids from better sites.

  3. Interspecific competition - Wikipedia

    en.wikipedia.org/wiki/Interspecific_competition

    Subadult male lion and female spotted hyena in the Masai Mara.The two species share the same ecological niche, and are thus in competition with each other. 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).

  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. Biological interaction - Wikipedia

    en.wikipedia.org/wiki/Biological_interaction

    Competition is often for a resource such as food, water, or territory in limited supply, or for access to females for reproduction. [18] Competition among members of the same species is known as intraspecific competition, while competition between individuals of different species is known as interspecific competition.

  7. Ecological niche - Wikipedia

    en.wikipedia.org/wiki/Ecological_niche

    For example, some live on the ground while others are arboreal. Species who live in different areas compete less for food and other resources, which minimizes competition between species. However, species who live in similar areas typically compete with each other. [39]

  8. Sexual selection in mammals - Wikipedia

    en.wikipedia.org/wiki/Sexual_Selection_in_mammals

    Elephants can use their ears as threat displays in male-to-male competition. Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, [1] consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a ...

  9. Scramble competition - Wikipedia

    en.wikipedia.org/wiki/Scramble_competition

    Scramble competition also exists in lepidopterans. For example, male mourning cloak butterflies will fly around in search for widely dispersed females. [12] Another example of scramble competition exists in Lactrodectus hesperus, the western black widow spider. There is a male-bias or skew within the sexually active population of this species ...