Questions about Population Ecology


1. Which of the following applies to humans?

 

          a. K selection 

          b. r selection 

          c. iteroparous 

          d. a and c


2 . Which of these would be associated with rapid population growth?

 

          a. long generation time 

          b. high fecundity 

          c. high death rate 

          d. all of these


3. Which of the following r values would cause a population to grow fastest?

 

          a. -1.0 

          b. 0 

          c. 0.5 

          d. 1.0


4. A population ecologist might study ________________.

 

          a. how energy flows through an ecosystem 

          b. the carrying capacity of wolves in Wyoming

          c. how nitrogen moves through an ecosystem 

          d. predator and prey interactions in a community

 

5. Which of these would cause uniform spacing in a population?


          a. when an individual’s location is not affected by the other individuals around it

          b. territoriality

          c. all individuals needing to use a single resource

          d. all of these


6. Which of the following would decrease population?

 

          a. a decrease in fecundity 

          b. an increase in death rate

          c. an increase in generation time 

          d. all of these


7. Type II survivorship curves describe populations where _________.

 

          a. death rate of youngsters is high 

          b. death rate of old individuals is high

          c. death rate for both youngsters and old individuals is high

          d. death rate is constant throughout the lifespan


8. A ____________ is semalparous.

 

          a. mosquito 

          b. human 

          c. bluebird 

          d. both b and c


9. In the logistic growth model the term N refers to __________.

 

          a. the number of generations 

          b. population size

          c. the change in population size 

          d. the growth rate


10. Carrying capacity refers to ___________.

 

          a. the number of young a female can produce 

          b. the number of young produced each generation

          c. the maximum number of individuals the environment can support

          d. the maximum rate of growth of a population



11. Calculate how much a population would grow in 1 generation if K = 10000, N = 1000, and r = 0.1.