Eccb 403 exam 3 Questions AND Correct Answers
12. True / False: The essay in Ch. 15 on principles of effective resource management suggests that good
research usually leads to good management. - ✔✔
12. True or false: Additive mortality and compensatory mortality are two terms used to refer to the type
of factor (e.g., weather, inter-specific competition, predation) that is imposing mortality upon a
population. - ✔✔
12. True or false: Within the context of managing meta-populations, sink populations are a "drain" on
the meta-population and serve no useful purpose. - ✔✔
Among the different sources of stochasticity that put small populations at risk of local extinction, which
of the follow are described correctly? - ✔✔a) Demographic stochasticity refers to random variation in
birth and death rates.
b) Environmental stochasticity refers to variation in population growth rates due to randomly occurring
changes in weather and biotic factors.
c) Genetic stochasticity refers to genetic variation resulting from genetic drift.
d) All the above
e) A and B above
Chapter 14 - ✔✔
Chapter 15 - ✔✔
Chapter 17 - ✔✔
Dynamic pool models include estimates of: - ✔✔a. Growth
b. Recruitment
c. Mortality
d. All the above
, e. None of the above
Ecological systems exist along a continuum from stable to unstable. With this in mind, which of the
following statements are correct? - ✔✔a. Biotic instability may result from over-connectedness among
species.
b. Stochastic domination may result from large random events.
c. A stable equilibrium may result from biotic coupling and density-dependence.
d. All the above
e. A and B above
In a stable environment, one would expect that _____ limit population growth.
b. Density-dependent factors - ✔✔a. Density-independent factors
b. Density-dependent factors
c. Both density-independent and density-dependent factors
In an unstable environment, one would expect that _____ limit population growth.
a. Density-independent factors - ✔✔a. Density-independent factors
b. Density-dependent factors
c. Both density-independent and density-dependent factors
The essay in Ch. 15 on harvest strategies for a fishery defines three basic strategies. Which of the
following correctly describes these strategies? - ✔✔a) The constant quota strategy specifies a fixed
biomass of fish that can be caught.
b) The constant exploitation rate strategy specifies a constant proportion of the stock that can be
caught.
c) The constant escapement strategy specifies that the catch will rise one-to-one with the stock size
above some minimum stock size threshold.
d) All the above.
e) A and B above
12. True / False: The essay in Ch. 15 on principles of effective resource management suggests that good
research usually leads to good management. - ✔✔
12. True or false: Additive mortality and compensatory mortality are two terms used to refer to the type
of factor (e.g., weather, inter-specific competition, predation) that is imposing mortality upon a
population. - ✔✔
12. True or false: Within the context of managing meta-populations, sink populations are a "drain" on
the meta-population and serve no useful purpose. - ✔✔
Among the different sources of stochasticity that put small populations at risk of local extinction, which
of the follow are described correctly? - ✔✔a) Demographic stochasticity refers to random variation in
birth and death rates.
b) Environmental stochasticity refers to variation in population growth rates due to randomly occurring
changes in weather and biotic factors.
c) Genetic stochasticity refers to genetic variation resulting from genetic drift.
d) All the above
e) A and B above
Chapter 14 - ✔✔
Chapter 15 - ✔✔
Chapter 17 - ✔✔
Dynamic pool models include estimates of: - ✔✔a. Growth
b. Recruitment
c. Mortality
d. All the above
, e. None of the above
Ecological systems exist along a continuum from stable to unstable. With this in mind, which of the
following statements are correct? - ✔✔a. Biotic instability may result from over-connectedness among
species.
b. Stochastic domination may result from large random events.
c. A stable equilibrium may result from biotic coupling and density-dependence.
d. All the above
e. A and B above
In a stable environment, one would expect that _____ limit population growth.
b. Density-dependent factors - ✔✔a. Density-independent factors
b. Density-dependent factors
c. Both density-independent and density-dependent factors
In an unstable environment, one would expect that _____ limit population growth.
a. Density-independent factors - ✔✔a. Density-independent factors
b. Density-dependent factors
c. Both density-independent and density-dependent factors
The essay in Ch. 15 on harvest strategies for a fishery defines three basic strategies. Which of the
following correctly describes these strategies? - ✔✔a) The constant quota strategy specifies a fixed
biomass of fish that can be caught.
b) The constant exploitation rate strategy specifies a constant proportion of the stock that can be
caught.
c) The constant escapement strategy specifies that the catch will rise one-to-one with the stock size
above some minimum stock size threshold.
d) All the above.
e) A and B above
