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Competition within, between, and among species is one of the most important forces in biology, especially in the field of [[ecology]].<ref name="Keddy, P.A 2001">Keddy, P.A. '''2001'''. ''Competition'', 2nd ed., Kluwer, Dordrecht. 552 p.</ref> | Competition within, between, and among species is one of the most important forces in biology, especially in the field of [[ecology]].<ref name="Keddy, P.A 2001">Keddy, P.A. '''2001'''. ''Competition'', 2nd ed., Kluwer, Dordrecht. 552 p.</ref> | ||
Competition between members of a species ("intraspecific") for resources such as [[food]], [[water]], [[Territory (animal)|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 population. However, competition among resources also has a strong tendency for diversification between members of the same species, resulting in coexistence of competitive and non-competitive strategies or cycles between low and high competitiveness. | |||