Consider the following scenario: A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat insects. the drought has little effect on the insect populations. What is the main selective pressure in this scenario? (1 point) Responses Leg length Leg length Fish population Fish population Drought Drought Insect population
1 answer
In this scenario, the main selective pressure would be the availability of food, specifically the decline in fish populations as a result of the drought. This would put pressure on the bird population to adapt their diet and feeding habits in order to survive.