**Essential knowledge and terms relating to population ecology**

Created March 2020, Offline version here
*Video by Paul Anderson, also on his website Bozeman Science.
*

1

1

Which of the following determines the size of a given population (N)?

2

1

The initial rabbit population is 20. There are 5 births and two deaths in the population. 0 rabbits immigrated but 3 rabbits emigrated from the population. What is ΔN?

3

1

The initial rabbit population is 30. There are 10 births and 4 deaths in the population. 10 rabbits immigrated while 7 rabbits emigrated from the population. What is the intrinsic growth rate?

4

1

In the following equation, Nt=N0ert, which variable is a constant?

5

1

The initial rabbit population size is 20. The intrinsic growth rate is 0.5. What will be the population at year 5? In other words, what is ‘N5’? Round answer to a whole number.

6

1

Which of the following is an example of a K-selected species?

7

1

An Oak tree falls under which type of survivorship curve?

8

1

Which of the following scenarios best illustrates a ‘density independent’ limiting factor?

9

1

Which of the following best explains why the Canada lynx and the Arctic hare have a ‘predator-prey’ relationship?

10

1

Which of the following scenarios will most likely produce a logistic growth model?

11

1

Which rabbit population has the highest intrinsic growth rate?

12

1

Dandelions and other plants have wind-dispersed seeds. What type of distribution do dandelions exhibit?

13

1

Which of the following is a characteristic of an r-selected species?

14

1

The overall chance of an elephant living into middle age and adulthood is greater compared to that of an ant. However, the mortality rate of an elephant increases as it grows older. Which type of survivorship curve do elephants fall under?

15

1

Which of the following are characteristics of distribution, density, and age ratio?

16

1

Which of the following best explains how a logistic growth model differs from an exponential growth model?