The main selective pressure in this scenario is the fish population. The decline in fish populations affects the long-legged birds that rely on fish for food, which could impact their survival and reproductive success. In contrast, short-legged birds that eat insects are not directly affected by this decline.
Consider the following scenario:
A significant decline in fish populations occurs in the habitat of a semi-aquatic bird population. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish, while short-legged birds eat insects. The insect population remains stable.
What is the main selective pressure in this scenario?
(1 point)
Responses
bird population
bird population
fish population
fish population
insect population
insect population
leg length
:)
1 answer