不同地区北树鼩头骨几何形态特征差异分析  

Analysis of the Geometrical Characteristics of Skull of Northern Tree Shrews(Tupaia belangeri)from Various Regions

作　　者：李海军 贾婷 高文荣 张浩 朱万龙 刘璐[3] 彭鸿碧 王政昆 LI Haijun;JIA Ting;GAO Wenrong;ZHANG Hao;ZHU Wanlong;LIU Lu;PENG Hongbi;WANG Zhengkun(Key Laboratory of Ecological Adaptive Evolution and Conservation on Animals-Plants in Southwest Mountain Ecosystem of Yunnan,School of Life Sciences,Yunnan Normal University.Bioenergy Sustainable Development and Utilization of Engineering Research Center of the Ministry of Education.Key Laboratory of Biomass Energy and Environmental Biotechnology in Yunnan Province,Kunming,650500,China;Yunnan College of Business Management,Kunming,650106,China;Second Affiliated Hospital of Kunming Medical University,Kunming,650033,China)

机构地区：[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,生物能源持续开发利用教育部工程研究中心,云南省生物质能与环境生物技术重点实验室,昆明650500 [2]云南经济管理学院,昆明650106 [3]昆明医科大学第二附属医院,昆明650033

出　　处：《野生动物学报》2020年第3期589-598,共10页CHINESE JOURNAL OF WILDLIFE

基　　金：国家自然科学基金项目(31660121);云南省中青年学术和技术带头人后备人才项目(2019HB013)。

摘　　要：为了探讨不同地区北树鼩(Tupaia belangeri)头骨的形态特征,本研究选取12个采样地:三亚、大新、乐业、兴义、河口、昆明、西昌、勐腊、大理、片马、腾冲和禄劝,采用主成分分析、薄片样条分析和多维尺度分析研究各采样地北树鼩上颌骨的背面、侧面、腹面和下颌侧面的形态。结果表明:主成分分析显示采样地中北树鼩头骨背面、侧面、腹面和下颌侧面中8个地区(乐业、兴义、何口、昆明、西昌、大理、勐腊和禄劝)的头骨侧面聚集为一枝,三亚和大新各为一枝,片马和腾冲聚集为一枝。薄片样条分析显示不同地区北树鼩头骨背面中颧弓、鼻骨和眼眶为形变多发生的部位;头骨侧面中眼眶、鼻骨、颧骨和前臼齿为形变多发生的部位;头骨腹面中听泡、第一臼齿上颌骨外侧最内凹点和第一臼齿齿冠内侧缘点为形变多发生的部位;下颌侧面中角突前最上凹点、下颌中部最低点和臼齿齿槽为形变多发生的部位。多维尺度分析显示12个地区北树鼩头骨有一定差异,这可能与分布、海拔和地理阻隔有关。To investigate the morphological characteristics of the skull of Tupaia belangeri in different regions,we collected skulls of T.belangeri from twelve sites:Sanya,Daxin,Leye,Xingyi,Hekou,Kunming,Xichang,Mengla,Dali,Pianma,Tengchong and Luquan.Dorsal cranium,lateral cranium,ventral cranium,lateral mandible of skulls were measured and analyzed by principal component analysis,thin plate spline and multidimensional scaling analysis.The principal component analysis showed that the dorsal cranium,ventral cranium,lateral cranium,lateral mandible of the skull from eight regions(Leye,Xingyi,Hekou,Kunming,Xichang,Dali,Mengla and Luquan)were clustered in a branch,those from Sanya and Daxin were clustered in two independent branches,and those from Pianma and Tengchong were clustered together.The thin plate spline analysis showed that deformations in the dorsal cranium were mostly concentrated in the zygomatic arch,nasal and eye socket.The deformation in the lateral cranium were mostly concentrated in the eye socket,nasal,cheekbones and premolar teeth.The deformation in the ventral cranium were mostly concentrated in acoustic vesicle,the most concave point of the lateral maxilla of the first molar and the medial margin of the crown of the first molar.The deformation in the lateral mandible were mostly concentrated in the most concave point anterior of the of cornu,the lowest middle of the mandible,and the alveolus of the cheek tooth.Multidimensional scaling showed that there were differences in skull morphology among the twelve sampling locations.

关 键 词：北树鼩 头骨 几何形态差异 

分 类 号：Q954.3[生物学—动物学]