ACTA THERIOLOGICA SINICA ›› 2018, Vol. 38 ›› Issue (5): 499-503.DOI: 10.16829/j.slxb.150168

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Differences of body composition and morphology of the gastrointestinal tract in Eothenomys miletus at different areas from the Hengduan Mountains in summer

ZHANG Haiji, HOU Dongmin, MEI Li, CHEN Lixin, WANG Zhengkun, ZHU Wanlong   

  1. Key Laboratory of Ecological Adaptive Evolution and Conservation on Animals-Plants in Southwest Mountain Ecosystem of Yunnan Province Higher Institutes College, School of Life Sciences of Yunnan Normal University
  • Online:2018-09-30 Published:2018-08-31


张海姬 侯东敏 梅丽 谌立新 王政昆 朱万龙   

  1. 云南省高校西南山地生态系统动植物生态适应进化及保护重点实验室,云南师范大学生命科学学院
  • 通讯作者: 朱万龙 E-mail:

Abstract: In order to explore differences of body compositions and digestive tract morphology in Eothenomys miletus from Hengduan Mountains at different areas. Samples wre collected from five sites from the north to the south: Deqin, Shangri-La, Lijiang, Jianchuan and Ailao Mountain. Body mass, wet and dry masses of body components (including heart, lung, liver, spleen and kidney), masses and lengths of stomach, small intestine, large intestine and cecum were measured in the present study. The results showed that body mass was significantly different among the five different areas (F=3.895, P<0.05); from lightest to heaviest:  Deqin, Shangri-La, Lijiang, Jianchuan and Ailao Mountain. There were significant differences in wet mass of liver among different sites (F=3.895, P<0.05), with heaviest coming from the Deqin population, and teh lightest fromthe Ailao Mountain population. Length of stomach showed significant differences among five areas (F=3.04, P<0.05), being significantly larger in Ailao Mountain in E. miletus. All of the above results showed that body mass, wet mass of liver and morphology of the gastrointestinal tract had significant differences that may be related to the gradual transition of environmental factors in Hengduan Mountains. In conclusion, E. miletus in different areas from Hengduan Mountains adapt to differing climate and environment conditions mainly by changing their body mass, organ masses and digestive tract morphology.

Key words: Body composition, Digestive tract morphology, Eothenomys miletus, Hengduan mountain region

关键词: 大绒鼠, 横断山地区, 身体组成, 消化道形态