Question

Abundance of a species population within its habitat is called as

• A. Absolute density
• B. Regional density
• C. Relative adensity
• D. Niche density

Answer 1

Answer: (D)

Niche density

Niche or ecological niche is specific part of habitat occupied by individuals of a species, which is limited by its range of tolerance, range of movement, type of food and its availability, shelter, type of predator, and timing of activity.

A habitat has several ecological niches and supports a number of species. An ecological niche is used by a single species. Two or more species cannot use the same niche despite having a mutualistic association.