关键词 鸟类 跗跖骨 形态结构 功能行为 多样性
Analyses of the Diversity of Shape Avian Tarsometararsus and Its Function
Zhang Yuguang Tian Xiaoyang
Abstract The avian tarsometatarsus distinguished from the tarsus and metatarsus of other quadruped by its unique characteristic of structure. There were distinct differences between ecological habit and the pattern of adaptation of birds of the different species，moreover, the diversity of shape and structure of corresponding tarsometatarsus had differentiated，so the choice of adaptability of avian tarsometatarsus and its corresponding functional behavior had come into being. Research on the diversity of shape and structure of avian tarsometatarsus, no only did it present evidences to realize the ecological habit of birds of different species，but made the knowledge of functional behavior of avian hindlimbs perfect progressively also. In particular it can base on the analyses of the diversity of shape and structure of tarsometatarsus of living birds and its corresponding function，to study the shape and habit of birds in the early stages，at the same time can discuss the evolutive law of functional behavior of birds in the different periods of the geologic history further too.
Key words Bird, Tarsometatarsus, Shape and structure, Functional behavior, Diversity