EL Deer: Predation or Starvation

Posljednje ažuriranje about 2 years ago

The graph shows the population of deer and wolves on a remote island. The deer lived on the island without predators. Biologist feared that the deer population was growing too much and that deer would die of starvation and disease. In 1971, wolves were introduced (or brought to the island) in hopes of controlling the deer population.

What happened to the wolf population from 1978 to 1980?

increased

decreased

stayed the same

What is the carrying capacity?

A. the number of individuals that are born in a year

B. the maximum number of individuals an area can support

C. the number of individuals that die in a year

D. the maximum number of individuals that leave an area

What happens when a population reaches carrying capacity?

A. animals die due to starvation and competiton

B. animals increase because there is lots of food

EL Deer: Predation or Starvation

EL Deer: Predation or Starvation

What happened to the deer population (blue line) from 1971 to 1973?

Populations increase when

What happened to the deer population (blue line) from 1973 to 1977?

What happened to the deer population (blue line) from 1971 to 1973?

Populations increase when

What happened to the deer population (blue line) from 1973 to 1977?

What happened to the wolf population (orange line) from 1971 to 1975?

What happened to the wolf population from 1978 to 1980?

What is the carrying capacity?

What happens when a population reaches carrying capacity?

What happened to the deer population from 1977 to 1980?

What happened to the wolf population from 1978 to 1980?

What is the carrying capacity?

What happens when a population reaches carrying capacity?