Morphological adaptations of incisors in the subterranean Gansu zokor, Myospalax cansus (Rodentia, Spalacidae)
文献类型：期刊论文
| 作者 | Lin, Gonghua ; Xie, Jiuxiang ; Ci, Haixin ; Tang, Lizhou ; Su, Jianping ; Zhang, Tongzuo |
| 刊名 | FOLIA ZOOLOGICA
 ; Lin, GH; Xie, JX; Ci, HX; Tang, LZ; Su, JP; Zhang, TZ.Morphological adaptations of incisors in the subterranean Gansu zokor, Myospalax cansus (Rodentia, Spalacidae),FOLIA ZOOLOGICA,2010,59(4):295-300
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| 出版日期 | 2010-12-01 |
| 英文摘要 | The incisor morphology of rodents varies a good deal among different genera and each structure may have a special evolutionary significance. Some basic and lateral profile measurements of upper and lower incisors which may reflect morphological adaptations of the Gansu zokor (Myospalax cansus, a typical subterranean rodent in northern Asia) and the brown rat (Rattus norvegicus, a typical aboveground rodent that has close body size to the Gansu zokor) were analyzed. GIS (Geographic Information System) software and nonlinear regression were used to analyze incisor lateral profile, allowing the incisors to be viewed as circular arcs with a high degree of accuracy. The results show that: i) zokors have more robust (i.e. larger anteroposterior diameter and transverse diameter values), heavier and longer upper as well as lower incisors than rats; ii) zokors show a significantly higher level of sexual dimorphism (male dominant) than rats on the incisor morphology (including basic and lateral profile measurements) and iii) the upper incisor is heavier than lower incisor in rats, as opposed to zokors, in which the lower incisor is heavier than the upper incisor, indicating that more resources must have been allocated to lower incisors of zokors.; The incisor morphology of rodents varies a good deal among different genera and each structure may have a special evolutionary significance. Some basic and lateral profile measurements of upper and lower incisors which may reflect morphological adaptations of the Gansu zokor (Myospalax cansus, a typical subterranean rodent in northern Asia) and the brown rat (Rattus norvegicus, a typical aboveground rodent that has close body size to the Gansu zokor) were analyzed. GIS (Geographic Information System) software and nonlinear regression were used to analyze incisor lateral profile, allowing the incisors to be viewed as circular arcs with a high degree of accuracy. The results show that: i) zokors have more robust (i.e. larger anteroposterior diameter and transverse diameter values), heavier and longer upper as well as lower incisors than rats; ii) zokors show a significantly higher level of sexual dimorphism (male dominant) than rats on the incisor morphology (including basic and lateral profile measurements) and iii) the upper incisor is heavier than lower incisor in rats, as opposed to zokors, in which the lower incisor is heavier than the upper incisor, indicating that more resources must have been allocated to lower incisors of zokors. |
| 源URL | [http://ir.nwipb.ac.cn//handle/363003/1618]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Lin, Gonghua,Xie, Jiuxiang,Ci, Haixin,et al. Morphological adaptations of incisors in the subterranean Gansu zokor, Myospalax cansus (Rodentia, Spalacidae)[J]. FOLIA ZOOLOGICA, Lin, GH; Xie, JX; Ci, HX; Tang, LZ; Su, JP; Zhang, TZ.Morphological adaptations of incisors in the subterranean Gansu zokor, Myospalax cansus (Rodentia, Spalacidae),FOLIA ZOOLOGICA,2010,59(4):295-300,2010. |
| APA | Lin, Gonghua,Xie, Jiuxiang,Ci, Haixin,Tang, Lizhou,Su, Jianping,&Zhang, Tongzuo.(2010).Morphological adaptations of incisors in the subterranean Gansu zokor, Myospalax cansus (Rodentia, Spalacidae).FOLIA ZOOLOGICA. |
| MLA | Lin, Gonghua,et al."Morphological adaptations of incisors in the subterranean Gansu zokor, Myospalax cansus (Rodentia, Spalacidae)".FOLIA ZOOLOGICA (2010). |
入库方式： OAI收割
来源：西北高原生物研究所
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