The wing shape of flying vertebrates influences both the energetic costs of flight and ecological and behavioural aspects, such as flight pattern, foraging behaviour, habitat selection, and size of food items (Norberg 1987). As flight is an expensive mode of locomotion (Norberg 1994), there should be strong selection for reduction of flight costs, favoring specific wing shapes. The wing morphology of bats is very diverse, and may be correlated to energetic, behavioural and ecological constraints (Norberg 1987, 1994)...
