In a songbird species, defending a territory saved the bird 584 calories a day in reduced foraging activity, but cost the bird 656 calories in defense of the territory. Is defending the territory consistent with the prediction from optimal foraging theory, and what can explain this?
A. Yes, because the bird will save 72 calories per day due to defending the territory.
B. No, so that demonstrates that optimal foraging theory is not useful.
C. No, but there may be non-nutritional benefits to defending territory.
D. Yes, because a bird of this species will minimize predation risk by defending the territory.
E. No, so it is likely that the researcher made a mistake in data collection.
C. No, but there may be non-nutritional benefits to defending territory.
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