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  2. Competition (biology) - Wikipedia

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

    Competition is an interaction between organisms or species in which both require one or more resources that are in limited supply (such as food, water, or territory). [1] 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]

  3. 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 ...

  4. Contest competition - Wikipedia

    en.wikipedia.org/wiki/Contest_competition

    Contest competition is the opposite of scramble competition, a situation in which available resources are shared equally among individuals. As contest competition allows the monopolization of resources, offspring will typically always be produced and survive until adulthood independent of the population size, resulting in stable population ...

  5. Biological interaction - Wikipedia

    en.wikipedia.org/wiki/Biological_interaction

    Competition among members of the same species is known as intraspecific competition, while competition between individuals of different species is known as interspecific competition. According to the competitive exclusion principle , species less suited to compete for resources should either adapt or die out .

  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. 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 ]

  8. Coexistence theory - Wikipedia

    en.wikipedia.org/wiki/Coexistence_theory

    Coexistence theory attempts to explain the paradox of the plankton-- how can ecologically similar species coexist without competitively excluding each other?. Coexistence theory is a framework to understand how competitor traits can maintain species diversity and stave-off competitive exclusion even among similar species living in ecologically similar environments.

  9. Competitive Lotka–Volterra equations - Wikipedia

    en.wikipedia.org/wiki/Competitive_Lotka...

    The definition of a competitive Lotka–Volterra system assumes that all values in the interaction matrix are positive or 0 (α ij ≥ 0 for all i, j). If it is also assumed that the population of any species will increase in the absence of competition unless the population is already at the carrying capacity ( r i > 0 for all i ), then some ...