Intraspecific Competition - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

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Intraspecific competition is when members of the same species compete against each other for resources they all need to survive, like food, water, space, or mates. This type of competition happens because the individuals are all part of the same species, so they need the same things to live and grow. For example, if there are too many plants in a small area, they might compete for sunlight and nutrients in the soil. Intraspecific competition can affect how many individuals can live in one area and can also influence the characteristics of a species over time, as those better suited to compete may survive and reproduce more successfully.

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Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

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