云南澜沧江中游地区的鸟类调查研究

A Survey of Birds in the Middle Reaches of the Lancan Jiang River

在调查区内包括采到和见到未做成标本的鸟类,共101种和亚种,分属于15个目,32个科。其中有一种为云南省新纪录。以上这些鸟类中,有食虫鸟类、猛禽以及杂食性鸟共91种,它们是对农、林业有益的鸟类,占90％;主食或兼食农作物、鱼类的鸟有10种,占10％左右。从区系组成上看,属东洋界的种类有79种,占78.2％;属古北界的种类有8种,占7.9％;广布东洋、古北两界的种类有14种,占13.9％。南北种类成分的混杂及垂直分布现象是该地区鸟类组成的特点。

We tecorded 101 species and subspecies including the birds collected,the birds seen snd recognized in the fieids.They belong to 15 orders,32 families,in which 1 species isnew record in Yunnan.There are 91 breeding birds accounting for 90.1% of the total number.On the avifaunnal affinities the oriental elements present 78.2%,the Palearctic elementa present7.9%, and the widespreadihg elements present 13.9%, It shows a hybirdized phenomenon of the elements between south-north,and some difference in vertical distribution in this area.Most of the birds about 91 apecies are insect-eating birds and benifit to the ag riculture and forestry, the others eat or sometimes eat agricultural products or rish.