关键词: 根田鼠, 气味源, 行为识别模式, 性别差异, 性二型

Abstract: The behavioral discrimination to fresh urine and feces of root voles (Microtus oeconomus) was investigated in a behavioral choice maze. The results showed that : (1) There were no signficant difference between odor discrimination to urine and feces in female root voles. There were significant differences between odor discrimination to urine and feces in males. (2) There was no signficant difference in odoral discrimination of root voles between urine and feces of strange opposite sex. (3) Except for sniff / lick time , there were no signficant difference on odor discrimination to feces between males and females. (4) By comparison of odor discrimination to urine between males and females found that , the visit frequency and counter-marking of males to urine were significantly more than females , and females spent more time sniffing / licking opposite-sex voles than males did , even there were no significant differences in other aspects. The results indicated that there was no sexual difference in odor discrimination to feces and there were sexual differences in odor discrimination to urine between males and females.

Key words: Root vole (Microtus oeconomus), Odorant, Behavior discrimination, Sexual difference, Sexual dimorphism