Refer to the figure below showing projections of population trends for woodpeckers. Scenario 1 is no change (current conditions), Scenario 2 is enhanced adult survival, and Scenario 3 is enhanced juvenile survival.

-Based on this figure, which of the following conclusions is true?
A) Enhancing juvenile populations will lead to increased probability of low percent decline in abundance.
B) Maintaining the current trends will cause both juveniles and adults to increase in number.
C) The highest probability of decline is associated with enhancing adult survival.
D) The best approach for maintaining populations at their current, stable level is to make no changes.
E) Enhancing the survival of either juveniles or adults would come at great cost.

Question

Refer to the figure below showing projections of population trends for woodpeckers. Scenario 1 is no change (current conditions), Scenario 2 is enhanced adult survival, and Scenario 3 is enhanced juvenile survival.
 
-Based on this figure, which of the following conclusions is true?
A) Enhancing juvenile populations will lead to increased probability of low percent decline in abundance. 
B) Maintaining the current trends will cause both juveniles and adults to increase in number. 
C) The highest probability of decline is associated with enhancing adult survival. 
D) The best approach for maintaining populations at their current, stable level is to make no changes. 
E) Enhancing the survival of either juveniles or adults would come at great cost.

Quizplus · Accepted Answer

Enhancing juvenile populations is often a strategy to increase the probability of low percent decline in abundance because juveniles represent the future reproductive potential of the population.

Refer to the Figure Below Showing Projections of Population Trends