The Cost of Phenotypic Mismatch in Avian Energy Intake: Limited Spare Capacity in Extreme Phenotypes Is Compensated by Energy-Saving Mechanisms.

Abstract excerpt

AbstractDaily energy intake in animals is flexible but takes days to adjust when needs surpass capacity. To buffer mismatches between intake and demand, individuals maintain immediate spare capacity for food consumption. The declining spare capacity model posits that this capacity declines as traits approach maximal values. In contrast, the high midrange capacity model suggests that animals may maintain higher...

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