EVERYDAY SCIENCE

Detailed explanation-1: -A realized niche refers to the actual space occupied by a species under real-world conditions, such as the presence of competition, nutrient availability, and environmental stressors. A combination of both intraspecific and interspecific competition is present in a realized niche.

Detailed explanation-2: -Realized niche is the set of conditions actually used by given animal (pop, species), after interactions with other species (predation and especially competition) have been taken into account.

Detailed explanation-3: -An example of how a realized niche is formed is the coexistence of wolves and coyotes living across North America. Because both species inhabit the same area, coyotes would then compete for food and territory. The realized niche for coyotes was small due to the more aggressive nature of wolves.

Detailed explanation-4: -A species’ niche is basically its ecological role, which is defined by the set of conditions, resources, and interactions it needs (or can make use of). The competitive exclusion principle says that two species can’t coexist if they occupy exactly the same niche (competing for identical resources).

Detailed explanation-5: -The niche concept is one of the core concepts in ecology and has been rediscovered by modern ecology for explaining biodiversity and species coexistence patterns (Pocheville, 2015). The niche-based theory states that an ecological community is made up of a limited number of niches, each occupied by a single species.