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Question 1

Why don’t populations increase indefinitely? 3•

Answer 1

•they run out of resources since they are limited
•Disturbances can greatly decrease their population size before competition is too intense
•Other species consume their resources.

Question 2

!!!!!Ecological roles?

Answer 2

Reintroducing important ecological functions that were once lost.

Question 3

Population regulation?

Answer 3

Density dependent factors causes a population to increase when density is low and decrease when density is high.

Question 4

In a density independent growth, the per capita population growth rate is?

Answer 4

Always constant with growth that goes on forever.

Question 5

In density dependent growth, the per capita population growth rate is?

Answer 5

Decreasing as a linear derivative.

Question 6

When a population expands and the same number of individuals are added, then the difference between N_t+1 and N_t •is/isnt significant overtime?

Answer 6

Isn’t

Question 7

Acceleration (per capita growth rate) of exponential growth rate is?

Answer 7

Constant (linear with slope 0).

Question 8

!!!!!!!Is per-capita growth rate the same as acceleration of population growth?

Question 9

Logistic growth includes both? 2•

Answer 9

•Density independent exponential phase & •density dependence

Question 10

All populations on earth are regulated by?

Answer 10

Density

Question 11

!!!!!How do we find r of logistic growth?

Answer 11

The first point of the per capita population growth rate

Question 12

How do we find K in a logistic growth?

Answer 12

The point on the per capita growth rate graph where N_t = 0.