2.2 Study Guide

Question 1

What does N stand for?

Answer 1

It stands for the population size.

Question 2

What is the definition of density independent?

Answer 2

The effect is not related to/is independent of the density of the population.

Question 3

What are some density dependent limiting factors?

Answer 3

Some are:
-intraspecific competation
- interspecific predation
- disease and parasites
- social behaviors

Question 4

What does dN/dt represent?

Answer 4

It represents the population growth rate.

Question 5

What makes a logistic growth model?

Answer 5

It is a model that describes how the population grows over time when limited by factors such as overcrowding and/or food.

Question 6

How do exponential growth model change when N changes and why?

Answer 6

When the population size changes the population’s growth rate becuase if a the population growth rate increases over time, the size will also increase due to them being proportional.

Question 7

How does logistic growth models change when K changes and why?

Answer 7

When the carrying capacity changes the growth rate will decrease. It is because a population’s per capita growth rate gets smaller and smaller as population size approaches a maximum.