Group B : Ecology: Habitat and Niche Concepts

Front

How is a habitat different from a niche?

Back

A niche is a part of a habitat; a habitat is all of the living and nonliving factors in the area where an organism lives, while a niche includes all the specific physical, chemical, and biological factors needed by an organism to survive, stay healthy, and reproduce

Front

What are the possible outcomes of competitive exclusion?

Back

One species will go extinct; the resources of the niche will be divided and the two species will coexist.

Front

How can ecological equivalents occur?

Back

While the two species occupy similar niches, they live in different geographical regions.

Front

All of the environmental features in the area where an organism lives are known as its

a. niche.

b. habitat.

c. community.

d. behavior.

Back

b. habitat.

Front

2. The lion’s ecological niche includes its behavior and

a. the shade trees on the savanna.

b. its position in the food web.

c. an ecological equivalent.

d. all the nearby watering holes.

Back

b. its position in the food web.

Front

The idea that two species cannot occupy the same niche is known as

a. ecological equivalence.

b. niche partitioning.

c. evolutionary response.

d. competitive exclusion.

Back

d. competitive exclusion.

Front

____ 4. When two species compete for the same resources, their ecological niche may

a. become extinct.

b. adapt to one species.

c. not favor one of them.

d. split into two niches.

Back

d. split into two niches.

Front

Ecological equivalents are species that occupy similar niches

a. in different geographical regions.

b. with plenty of food.

c. in different types of habitats.

d. after niche partitioning.

 

Back

a. in different geographical regions.