ACTA THERIOLOGICA SINICA ›› 2016, Vol. 36 ›› Issue (4): 464-468.DOI: 10.16829/j.slxb.201604012

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Effects of ethanol on sucrose solution consumption in captive nectarivorous bats Eonycteris spelaea

PENG Xingwen,LIU Qi,HE Xiangyang,ZHANG Qin,LIU Hui,Liang Jie,SUN Yunxiao,LIU Zhixiao,ZHANG Libiao   

  1. College of Biology and Environmental Sciences
  • Online:2016-11-13 Published:2016-11-16
  • Contact: LIU Zhixiao E-mail:; ZHANG Libiao E-mail:


彭兴文 刘奇 何向阳 张琴 刘会 梁捷 孙云霄 刘志霄 张礼标   

  1. 吉首大学生物资源与环境科学学院
  • 通讯作者: 刘志霄 E-mail:; 张礼标 E-mail:
  • 基金资助:

Abstract: Nectarivorous bats,(Eonycteris spelaea) generally choose to eat nectar or ripe fruit in which ethanol concentration increases as the fruit and nectar ripen. Ethanol concentration may act as an odor cue, guiding frugivorous bats to the fruit or flower, and aiding them in assessing its quality. We wondered whether ethanol could act as an appetitive stimulant and influenced the quantity of food consumption by captive bats. We offered food (sucrose solution) containing 7 concentrations levels of ethanol (0.005%, 0.01%, 0.05%, 0.1%, 0.3%, 0.5% or 1%),to captive bats  to test whether the bats’ responses were positive or negative, i.e., they ate more or less when ethanol in the food increased comparing to control (ethanol free). The results showed that E. spelaea did not change consumption of food containing 0.005% ethanol, but significantly decreased consumption at higher levels of ethanol concentration (≥0.01%), When ethanol concentration in food was at 1%, food consumption was only 34% compared to that of ethanol free. Our results indicatethat ethanol in food has a negative influence on food intake when its concentration reached 0.01%, but the reasons for this remained to be further tested.

Key words: Eonycteris spelaea, Ethanol, Food consumption, Nectarivore animals

关键词: 长舌果蝠, 食蜜动物, 乙醇, 摄食量