Revising the Niche Concept: Definitions and Mechanistic Models
Revising the Niche Concept: Definitions and Mechanistic Models
This chapter proposes a quantitative definition of niche that includes a species' requirements from and impacts on a factor. Requirements refer to the conditions where an organism's birth rates exceed its death rates on a particular factor, whereas impact refers to the effect that species has on the factor. The explicit recognition of both requirement and impact components of the niche provides a general framework for understanding the problems of species interaction and coexistence, which form the basis of much ecological inquiry.
Keywords: niche concept, species niche, birth rates, organisms, species interaction, coexistence
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