Video Notes 3.4

Which is least likely to affect the carrying capacity of a habitat for a particular species?

• • limited food

• • a prolonged drought

• • an abundance of competing species

• • a balanced ratio of males to females in the population

Which of the following would NOT increase the carrying capacity of robins in a forest?

• Expansion of the forest into a previously open prairie

• An increase in the number of trees and nesting materials

• The migration of birds with similar food and habitat needs into the forest

• An increase in earthworms in the soil

As the size of a white-tailed deer population increases,

• • the carrying capacity of the environment for white-tailed deer will be reduced

• • a volcanic eruption will have a greater proportional effect than it would on a smaller population

• • the effect of limiting resources will decrease

• • the number of wolves, a natural predator of white-tailed deer, will increase