14 1 Habitat And Niche KEY CONCEPT Every

14. 1 Habitat And Niche KEY CONCEPT Every organism has a habitat and a niche.

14. 1 Habitat And Niche A habitat differs from a niche. • A habitat is all aspects of the area in which an organism lives. – biotic factors – abiotic factors • An ecological niche includes all of the factors that a species needs to survive, stay healthy, and reproduce. – food – abiotic conditions – behavior

14. 1 Habitat And Niche Resource availability gives structure to a community. • Species can share habitats and resources. • Competition occurs when two species use resources in the same way. • Competitive exclusion keeps two species from occupying the same niche.

14. 1 Habitat And Niche • Competitive exclusion has different outcomes. – One species is better suited to the niche and the other will either be pushed out or become extinct. – The niche will be divided. – The two species will further diverge.

14. 1 Habitat And Niche • Ecological equivalents are species that occupy similar niches but live in different geographical regions. Madagascar South America

14. 1 Habitat And Niche All of the environmental features in an area where an organisms lives are known as its A. B. C. D. Niche Habitat Community Behavior

14. 1 Habitat And Niche The lion’s ecological niche includes its behavior and A. B. C. D. The shade trees on the savannah Its position on the food web An ecological equivalent All the nearby watering holes

14. 1 Habitat And Niche The idea that two species cannot occupy the same niche is known as A. B. C. D. Ecological equivalence Niche partitioning Evolutionary response Competitive exclusion

14. 1 Habitat And Niche When two species compete for the same resources, their ecological niche may A. B. C. D. Become extinct Adapt to one species Not favor one of them Split into two niches

14. 1 Habitat And Niche Ecological equivalents are species that occupy similar niches A. B. C. D. In different geographical regions With plenty of food In different types of habitats After niche partitioning