Free Printable Population Ecology

1.

Organize these options into the right categories for the TYPE of LIMITING FACTORS

Categorize the following

Food

Water

Space

Competition

Disease

Predation

Drought

Tornado

Hunting by humans

Volcanic eruption

Increase in temperature

Density-Dependent

Density-Independent

2.

Draw a sketch of graph that shows exponential growth

3.

Draw a sketch of graph that shows logistic growth

4.

Label the graph

a)

overshoot

b)

dieback

c)

carrying capacity

1

2

3

1)

2)

3)

5.

What could be reason for an overshoot in population growth?

a)

abundance of resources (food and water)

b)

Lack of predators

c)

Disease and parasites

d)

plenty of space

e)

Competition

6.

Why does a dieback typically follows an overshoot in population growth?

a)

depletion of resources (food and water)

b)

lack of predators

c)

Disease and parasites

d)

lack of space

e)

Competition

7.

Identify the time when this population FIRST reaches the carrying capacity (on the curve and on the axis)

A

B

C

D

E

F

8.

Calculate the growth rate for this scenario:

In a population of deer 20 new fawns are born, 7 deer of various ages die, 3 new does immigrate, and 2 young bucks emigrate from the group

(Show your work -- example: a + b - c = d

9.

REAL LIFE SCENARIO: Ken Lee is exposed to Staphylococcus sp. , which is the bacteria that causes staph infection in the skin. The infection first starts with 5 bacteria, which doubles every 30 minutes. Determine how many bacteria are expected to be in Ken Lee's infected spot after 30 minutes.

If initial = 5, then after 30 min --> (a)

10.

REAL LIFE SCENARIO: Ken Lee is exposed to Staphylococcus sp. , which is the bacteria that causes staph infection in the skin. The infection first starts with 5 bacteria, which doubles every 30 minutes. Determine how many bacteria are expected to be in Ken Lee's infected spot every 30 minutes until it reaches 2.5 hours.

11.

In 1850, the population of lynx decreased dramatically. Typically, when the population of predators decrease, the population of prey will (a)

12.

When observing the third graph you can conclude that this is an example of ...

a)

Intraspecific competition

b)

Interspecific competition

c)

Predator-prey relationship

d)

Symbiosis

Population Ecology

Total questions: 12

Worksheet time: 20mins

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