The process by which natural selection drives competing species into different patterns of resource use or different niches. Coexistence is obtained through the differentiation of their realized ecological niches.
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Realized Niche
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The actual area occupied by an organism when taking into account limiting factors.
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Intraspecific competiton
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Competition within the same species
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Niche
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The position that a species occupies in its ecosystem, including diet and interactions with other species.
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Contest/ interference competition
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Individuals try to gain as much of a resource for themselves and actively try to prevent other individuals from gaining access to the resource.
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Interspecific competiton
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Competition between 2 or more different species.
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Scramble/ exploitation competition
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All individuals try to get as much as possible of a scarce common resource for themselves. Scarcity negatively affects all individuals equally.
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Competition
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Demand by 2 or more organisms for shared environment resources at the same time.
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Fundamental Niche
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Conditions where a species can persist in the absence of limiting factors like predators.
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Competitive Exclusion Principle
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2 species cannot occupy the same niche in the same space and time