Question

The "realized niche" of Canada geese depends on which of the following?

A. interspecific competition between Canada geese and other birds
B. competitive exclusion of Canada geese by other organisms
C. the distribution of Canada geese parasites
D. the climate of a given environment
E. All of these choices are correct.

Answer 1

The realized niche of Canada geese depends on interspecific competition, parasites, and climate.

Step-by-step explanation:

Interspecific competition is the basis of the competitive exclusion principle, which states that two different species cannot occupy the same niche in the same place for very long. In the case of Canada geese, their realized niche depends on all of the following factors:

1. Interspecific competition between Canada geese and other birds. This competition for resources, such as food and nesting space, can determine the survival and distribution of Canada geese.
2. The distribution of Canada geese parasites. Parasites can impact the fitness and distribution of Canada geese, influencing their realized niche.
3. The climate of a given environment. Different climates can affect the availability of resources, which in turn affects the realized niche of Canada geese.

Therefore, choice E, All of these choices are correct, is the correct answer.