Ecol 182 Ch 54
Terms in this set (20)
Which of these species typically has a mortality rate that remains fairly constant over an individual's life span?
Oyster populations are primarily, if not exclusively, composed of _____.
Which of these organisms has a survivorship curve similar to that of humans?
Which processes increase a population's size?
Births and immigration.
True or false? Factors that determine the per capita rate of increase of a population include the age of breeding and the number of offspring produced each year
True; The per capita rate of increase of a population is the difference between the per capita birth rate and the per capita death rate, and is determined by factors that include the age of breeding and the number of offspring produced each year.
Which factor does not affect a habitat's carrying capacity?
Maximum number of individuals in a population.
Which equation represents the logistic growth rate of a population?
Which of the following statements about density-independent growth is true?
Density-independent growth is also known as exponential growth
Under which of the following conditions would a population most likely experience exponential growth?
Young populations with few individuals are more likely to experience exponential growth because they have not used up the supply of resources.
Which of the following statements about a population experiencing logistic growth is true?
If N is greater than K, the population will shrink
What is rmax in a species like the giant panda?Giant pandas have a low rate of increase for the population
Giant pandas have a low rate of increase for the population
Which of the following statements are true of logistic growth?
- When the population reaches carrying capacity, it stops growing.
- As the population approaches carrying capacity, it grows more slowly
Which of the following statements are true of a population at carrying capacity?
The rate at which resources are used is equal to the rate at which they are supplied.
The birth rate equals the death rate.
As a population approaches carrying capacity, environmental resistance __________.
Which of the following factors does not contribute to environmental resistance?
What best explains hare and lynx population cycles?
The interaction of food availability and predation intensity
Predation limits hare population growth, but food availability is also important.
An example of an age-structure influence on human population size is that _____.
Populations dominated by juveniles should experience rapid growth
Which of the following is the most likely to go extinct?
A small single population of 5000; Because it cannot be replenished by other populations, this is the most at risk for extinction.
List four factors that define population growth.
Why have population biologists become particularly interested in the dynamics of metapopulations?
Because many populations are becoming restricted to small islands of habitat