NEET BIOLOGY

Detailed explanation-1: -Ecological theory states that each species has a unique niche, which encompasses its habitat and its use of resources in the presence of competition and other biotic interactions (Hutchinson 1959; Krebs 2001; Begon et al. 2005).

Detailed explanation-2: -Introduction. Ecological niche is a term for the position of a species within an ecosystem, describing both the range of conditions necessary for persistence of the species, and its ecological role in the ecosystem.

Detailed explanation-3: -In some cases it is convenient to think of the environmental conditions in which a species can survive as consisting of more than one distinct set: the species then occupies multiple niches. Different forms of the species may be adapted to each niche: called multiple niche polymorphism.

Detailed explanation-4: -Each organism plays a particular role in its ecosystem. A niche is the role a species plays in the ecosystem. In other words, a niche is how an organism “makes a living.” A niche will include the organism’s role in the flow of energy through the ecosystem.