Differentiation in cranial variables among six species of Hylopetes(Sciurinae: Pteromyini)  

作　　者：Song LI Fa-Hong YU 

机构地区：[1]Kunming Natural History Museum of Zoology,Kunming Institute of Zoology, Chinese Academy of Sciences [2]State Key Laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology, Chinese Academy of Sciences [3]ICBR, University of Florida,Gainesville

出　　处：《Zoological Research》2013年第5期I0012-I0019,共8页动物学研究（英文）

基　　金：supported by the National Natural Science Foundation of China(30970332);Natural Science Found of Yunnan province(2007C099M)

摘　　要：There is some discrepancy in the classification of different species of Hylopetes, particularly regarding systematic status of H. electilis and H. phayrei and their relationship to other species. In the present study, for the first time we have brought together six of the nine Hylopetes species and performed statistical analysis of 14 measurable cranial variables, analyzing in total 89 specimens, including H. electilis, H. alboniger, H. phayrei, H. lepidus, H. spadiceus, and H. nigripes. Both univariate and multivariate analysis results indicate that H. electilis can not only be obviously distinguished from H. phayrei, but also clearly differs from the other four Hylopetes species. These results sustain the contention that H. electilis is neither a synonym nor subspecies ofH. phayrei, but should be considered a distinct and valid species. Subsequently, a straightforward discussion on the biogeography of Hylopetes in southeastem Asia gives further insight into the differentiation and variety of species belonging to this genus.There is some discrepancy in the classification of different species of Hylopetes, particularly regarding systematic status of H. electilis and H. phayrei and their relationship to other species. In the present study, for the first time we have brought together six of the nine Hylopetes species and performed statistical analysis of 14 measurable cranial variables, analyzing in total 89 specimens, including H. electilis, H. alboniger, H. phayrei, H. lepidus, H. spadiceus, and H. nigripes. Both univariate and multivariate analysis results indicate that H. electilis can not only be obviously distinguished from H. phayrei, but also clearly differs from the other four Hylopetes species. These results sustain the contention that H. electilis is neither a synonym nor subspecies ofH. phayrei, but should be considered a distinct and valid species. Subsequently, a straightforward discussion on the biogeography of Hylopetes in southeastem Asia gives further insight into the differentiation and variety of species belonging to this genus.

关 键 词：Hylopetes MORPHOLOGY Cranial variables Statistical analysis SPECIES 

分 类 号：Q959.848[生物学—动物学] Q254