短耳鸮的骨骼系统解剖  

Morphological Study on the Skeletal System of Short-eared Owl

作　　者：齐赛飞[1] 袁施彬[1] 周材权[1] 张君[1] 王夕龙[1] 

机构地区：[1]西华师范大学生命科学学院珍稀动植物研究所西南野生动植物资源保护教育部重点实验室,四川南充637009

出　　处：《西华师范大学学报（自然科学版）》2010年第3期244-249,共6页Journal of China West Normal University(Natural Sciences)

基　　金：国家自然科学基金资助项目(30570275;30770256);四川省青年科技基金资助项目(06ZQ026-025);四川省教育厅预研资助项目(2005C1011)

摘　　要：采用解剖学方法对1只雌性短耳鸮(Asio fiammeus)骨骼系统进行了详细的观察、描述.结果表明,其头骨较轻,上喙粗长、前端近垂直下弯;龙骨突不发达;叉骨呈"V"形,与乌喙骨相连处较宽厚;前肢骨明显长于后肢骨;桡骨细而直,靠近肱骨端有一细长形裂缝;跗跖骨结构粗壮;趾尖具弯曲的利爪.这些特征与短耳鸮的取食方式、飞行和栖息特点密切相关.The skeletal system of a female Short-Eared Owl（Asio fiammeus） was described in detail.It＇s characterized by the following features： the skull is very light;bill is elongated and heavy,with the anterior end curing downward deeply;the keel is poorly developed;the clavicle is V-shaped and the part is thicker which linkes with coracoid;the forelimb bone is distinctively longer than that of the hindlimb;radius is exquisite and straight with a crack on the side of humeru;tarsometatarsus is coarse;there are bended and incisive claws on the tiptoe.Correlations between morphological characteristics and functional adaptation were discussed.

关 键 词：短耳鸮 骨骼 解剖 

分 类 号：Q954[生物学—动物学]