BRAINCAKENiches
A niche is the role of a species within its habitat. It includes all the ways the species interacts with its environment:
• biotic interactions, such as what it eats, what eats it and which species it competes with;
• abiotic interactions, such as the range of temperature, light, pH and moisture it can tolerate, and when and where it is active.
A species occupies its niche because it is adapted to both the biotic and abiotic conditions there. Its anatomy, physiology and behaviour suit it to that particular way of life.
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More in Populations in Ecosystems
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- Biotic Factors and Population Size
- Intraspecific Competition
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All 20 lessons in Populations in Ecosystems · All AQA A-level Biology topics