Larger barnacle geese (Branta leucopsis) are more efficient feeders: a possible mechanism for observed body size-fitness relationships

摘要: Geese have to satisfy the high energy demands of flight with a low-energy and bulky food. When feeding on food items that are concentrated widespread, as is case in geese. an individual's instantaneous intake rate largely determined by its bite size. Inter-individual variation size was measured barnacle geese Brania leucopsis, hypotheses would scale (sward height)(a), where 0