How Did Grayson and Wilbur (2009) Examine Factors That Affect

Question

How did Grayson and Wilbur (2009) examine factors that affect migratory movement in newts?
A) They manipulated food abundance in different patches.
B) They observed variation in migratory behavior in different populations.
C) They manipulated the density and sex ratio in experimental plots.
D) They characterized differences between resident and migratory individuals.
E) They examined hormone levels of resident and migratory individuals.

Accepted Answer

Grayson and Wilbur (2009) conducted experiments by manipulating the density and sex ratio in experimental plots to study factors affecting migratory movement in newts.