酒精是否會影響果蝠的判斷力,？答案是肯定的,。

據(jù)美國《科學(xué)》雜志在線新聞報(bào)道,，讓果蝠分別在含有蔗糖和酒精以及含有果糖和酒精的花蜜中進(jìn)行選擇，果蝠更喜歡前者,。研究人員相信這并不是一個明智的選擇,，因?yàn)楣悄軌驇椭鼈兏斓貙⒕凭x掉。他們將這一針對果蝠的呼氣測醉器測試結(jié)果發(fā)表在4月18日的《實(shí)驗(yàn)生物學(xué)雜志》網(wǎng)絡(luò)版上,。研究人員指出,，成熟的果實(shí)含有乙醇和其他許多糖分，因此會對果蝠所選擇的果實(shí)產(chǎn)生影響,，從而最終改變由其傳播到野外的種子的類型,。（來源：科學(xué)時(shí)報(bào) 群芳）

生物谷推薦原始出處：

（JEB），211, 1475-1481 (2008),，F(xiàn)rancisco Sánchez, Berry Pinshow

Sugars are complementary resources to ethanol in foods consumed by Egyptian fruit bats

Francisco Sánchez*, Burt P. Kotler, Carmi Korine and Berry Pinshow

Food resources are complementary for a forager if their contribution to fitness is higher when consumed together than when consumed independently, e.g. ingesting one may reduce the toxic effects of another. The concentration of potentially toxic ethanol, [EtOH], in fleshy fruit increases during ripening and affects food choices by Egyptian fruit bats, becoming deterrent at high concentrations (1%). However, ethanol toxicity is apparently reduced when ingested along with some sugars; more with fructose than with sucrose or glucose. We predicted (1) that ingested ethanol is eliminated faster by bats eating fructose than by bats eating sucrose or glucose, (2) that the marginal value of fructose-containing food (food+fructose) increases with increasing [EtOH] more than the marginal value of sucrose- or glucose-containing food (food+sucrose, food+glucose), and (3) that by increasing [EtOH] the marginal value of food+sucose is incremented more than that of food+glucose. Ethanol in bat breath declined faster after they ate fructose than after eating sucrose or glucose. When food [EtOH] increased, the marginal value of food+fructose increased relative to food+glucose. However, the marginal value of food+sucrose increased with increasing [EtOH] more than food+fructose or food+glucose. Although fructose enhanced the rate at which ethanol declined in Egyptian fruit bat breath more than the other sugars, the bats treated both fructose and sucrose as complementary to ethanol. This suggests that in the wild, the amount of ethanol-containing fruit consumed or rejected by Egyptian fruit bats may be related to the fruit's own sugar content and composition, and/or the near-by availability of other sucrose- and fructose-containing fruits.