Which will reduce competition within a species' population?
a. fewer individuals
b. higher birthrate
c. fewer resources
d. higher population density
a. fewer individuals
Which of the following is NOT likely to be a limiting factor on the sea otter population?
a. disease
b. competition
c. drought
d. predation
c. drought
Which would be least likely to be affected by a density-dependent limiting factor?
a. a small, scattered population
b. a population with a high birthrate
c. a large, dense population
d. a population with a high immigration rate
a. a small, scattered population
Demographic transition is change from high birthrates and high death rates to
a. exponential growth.
b. a low birthrate and a low death rate.
c. a low birthrate and a high death rate.
d. indefinite growth.
b. a low birthrate and a low death rate.
Each of the following is a density-dependent limiting factor EXCEPT
a. competition.
b. seasonal cycles.
c. crowding.
d. disease.
b. seasonal cycles.
Which of the following is a density-independent limiting factor?
a. earthquake
b. disease
c. emigration
d. parasitism
a. earthquake
Which of the following would NOT be a limiting factor to the size of a large, dense population?
a. a struggle for food, water, space, or sunlight
b. predator/prey relationships
c. a struggle to find shelter from a natural disaster
d. parasitism and disease