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Question 1

Spatial scale is important to consider?

Answer 1

Any study of species distribution.

Question 2

What information do species distribution maps lack?

Answer 2

Biotic interactions.

Question 3

In a niche, when you move from the optimum environment, then species abundance?

Answer 3

Decreases as physiological stress increase.

Question 4

Zone of intolerance in a niche?

Answer 4

When no individuals can be present.

Question 5

Fundamental niche?

Answer 5

Total range of abiotic environmental conditions in which a tax on can survive and reproduce.

Question 6

Realized niche?

Answer 6

Subset of fundamental niche comprising of both biotic and abiotic conditions.

Question 7

Ecological release?

Answer 7

Expansion of realized niche of a species due to a few competitors (e.g. removal of a species that competitively exclude the other species).

Question 8

Congeners?

Answer 8

Members of the same genus.

Question 9

Competition is stronger with congeners or non-congeners?

Answer 9

Congeners since they share more similar traits and require more similar recourses.

Question 10

How do ecologists determine whether a specific factor limits the distribution of a species?

Answer 10

•Observations to formulate hypothesis
-which resources are in short supply?

•Experiments that make the factor/resource unlimited. Does population growth increase?
-Remove competitors
-Add extra nitrogen
-Remove predators
-Add extra light

•Experimentally move populations. Can population persist?