摘要
利用体视显微镜观察分析11目58种鸟类(非雀形目19种和雀形目39种)的绒羽羽小枝的显微结构,结果发现除鸮形目草鸮绒羽羽小枝无分节现象外,其余10目57种鸟类绒羽羽小枝具有膨大的节和长的节间等明显的显微结构;除黑翅鸢和草鸮两种鸟类的绒羽上没有色素分布外,其余56种绒羽羽小枝上均有色素分布.雀形目鸟类绒羽的节间长度、节直径、节间中部直径及节的膨大程度均要小于非雀形目鸟类,但是色素长度较为近似.综合这些特征差异可以作为鸟种的鉴别依据,这在野生鸟类刑侦、鸟类残骸鉴定等工作中具有良好的运用价值.
Morphological features of the bird feathers are important indicators in species identification. We can use a microscope to observe the microstructure of the feathers, and compare the microstructure to identify species. Most studies are focus on the microstructure of remiges; the microstructures of the semiplume are lack of study. Passerine is the most diversified taxa and also the most complicated category in Ayes. If we can find some stable characteristics on Passerine feathers then this work could shed some light on the classification and identification of Ayes class. Our work selected 39 Passeriformes species as the study targets, another 19 non-Passeriformes species selected as the comparasion. We examined the microstructure by stereomicroscope and measured four features of the semiplume, there are inter-length of knobs, diameter of knobs, diameters of sprigs and length of pigmentation. The results show that except the Strigiformes, all the other 57 species show obvious knobs on the sprigs of feathers. The pigmentation exists on all the species except Elanus caeruleus and two owls. The inter-length of the knobs, diameter of knobs and diameters of sprigs of Passeriformes species are shorter then non-Passeriformes species. We do not detect obvious difference of the pigmentation length between Passeriformes and non-Passeriformes species.
出处
《常熟理工学院学报》
2010年第8期47-51,共5页
Journal of Changshu Institute of Technology
基金
云南省重点学科野生动植物保护与利用建设资助项目(XKZ200904)
关键词
绒羽
羽小枝
显微结构
物种鉴定
semiplume
sprig
microstructure
species identification
