摘要:
为探讨不同地区的高山姬鼠(Apodemus chevrieri)消化道形态是否存在差异，本研究于2012年6月分别对捕自云南剑川和呈贡地区高山姬鼠的体重、消化道(胃、小肠、大肠和盲肠)的长度以及含内容物重、去内容物重进行了测量。结果显示：剑川地区高山姬鼠的小肠和盲肠去内容物重以及长度均显著大于呈贡地区；体重、胃和盲肠含内容物重以及盲肠长均显著小于呈贡地区。结果表明：剑川地区的高山姬鼠具有较小的体重以减少对能量的绝对需求来应对该地较低的气温和食物资源短缺，暗示消化道形态的大小和消化能力的调整在自然环境高山姬鼠消化对策中起着重要的作用。
Abstract: In order to investigate whether there are differences on digestive tract morphology in A. chevrieri from different areas, we measured weight and lengths of total digestive tract morphology including stomach, small intestine, large intestine and cecum of A. chevrieri from Jianchuan and Chenggong. The results showed that the length and weight without contents of the small intestine and cecum in A. chevrieri at Jianchuan were significantly greater than that of Chenggong; body mass, the stomach, the weight with content of stomach and cecal and lengths of cecum at Jianchuan were significantly less than that of Chenggong. The results indicated that A. chevrieri at Jianchuan might adjust the body mass and weight of digestive tract to maintain the normal physiological function in stressed condition, such as at cold environment and lack of food. This suggests that the adjustments in capacity and size of the gastrointestinal tract play an important role in their digestive strategies of A. chevrieri in natural environment.