Population Ecology 1

Emigration is

• the movement out of an area

• the movement into an area

• movement in and out of an area

• migration

Why don't populations grow indefinitely?

• limiting factors

• only biotic factors

• only abiotic factors

• none of the above

What is an example of a density-independent (Abiotic) limiting factor?

• food

• parasites

• disease

• pollution

parasites, disease, predators, are examples of what type of limiting factors?

• density dependent

• density independent

• survivorship

• type 1 curve

What is the arrow pointing at?

• carrying capacity

• biotic potential

• density-independent

• density dependent

(Im)migration is ...

• the movement into an area

• The movement out of an area

• The migration process

• exponential graph

Why don't populations grow indefinitely?

• limiting factors

• only biotic factors

• only abiotic factors

• none of the above

Which of the following statements best defines population density?

• The total number of people living in an area

• Where people are living and how spread out or close together they are

• The average number of people living in a certain area

what tells how fast a given population grows?

• population growth rate

• exponential growth model

• logistic growth model

• carrying capacity

What is a population ?

• Disturbance has removed vegetation but left soil intact.

• The natural birth, growth and development of ecosystem.

• All organisms of a species that live in the same area.

• A community of interacting organisms and their environment.