Rita Covas and colleagues found evidence of stabilizing selection in African sociable weaver birds.Their field studies indicate that

Question

Quizplus · Accepted Answer

Stabilizing selection occurs when the average phenotype has higher fitness than either extreme phenotype. In the case of African sociable weaver birds studied by Rita Covas and colleagues, the evidence of stabilizing selection suggests that there is a fitness advantage to being of average body size, as both very lean and very fat birds are less likely to survive due to increased predation or starvation, respectively. This indicates that there may be a limited food supply or increased competition for resources, leading to this type of selection pressure.

Rita Covas and Colleagues Found Evidence of Stabilizing Selection in African