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 fish, while short-legged birds eat insects. The drought has little effect on insect populations. What is the main selective pressure in this scenario? (1 point) Responses leg length leg length drought drought fish population fish population insect population
The main selective pressure in this scenario would be the availability and abundance of fish as a food source for the long-legged birds. The drought causing the ponds to dry up and the decline in fish populations would put pressure on the long-legged birds to find alternative food sources or adapt their feeding strategies to survive.
