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Table 1.

Predictions of the effects of [EtOH] on the marginal value of foods containing different sugars for Egyptian fruit bats

Ethanol-free foodEthanol-rich food
(MVFrc–MVScr(MVFrc–MVScr
(GUDFrc–GUDScr(GUDFrc–GUDScr
(MVFrc–MVGlc(MVFrc–MVGlc
(GUDFrc–GUDGlc(GUDFrc–GUDGlc
(MVScr–MVGlc(MVScr–MVGlc
(GUDScr–GUDGlc(GUDScr–GUDGlc
Ethanol-free foodEthanol-rich food
(MVFrc–MVScr(MVFrc–MVScr
(GUDFrc–GUDScr(GUDFrc–GUDScr
(MVFrc–MVGlc(MVFrc–MVGlc
(GUDFrc–GUDGlc(GUDFrc–GUDGlc
(MVScr–MVGlc(MVScr–MVGlc
(GUDScr–GUDGlc(GUDScr–GUDGlc

The marginal value of fructose-containing food (food+fructose) will increase with [EtOH] relative to that of sucrose- or glucose-containing food(food+sucrose, food+glucose). Also, the marginal value of food+sucrose will increase with [EtOH] relative to that of food+glucose. MVFrc and GUDFrc are the marginal value and giving-up density for food+fructose; MVScr and GUDScr are the marginal value and giving-up density for food+sucrose; MVGlc and GUDGlcare the marginal value and giving-up density for food+glucose

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