Niche
The role or functional position of an organism within its environment, including what it eats, where it lives, and how it interacts with other species.
Real World
Galápagos finches studied by Peter and Rosemary Grant occupy different niches on the same island — some crack hard seeds, others probe cacti — reducing direct competition through niche partitioning.
Exam Focus
Distinguish fundamental niche from realised niche — a common 2-mark comparison question.
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