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滇西北昆虫区系特点
引用本文:杨大荣.滇西北昆虫区系特点[J].动物学研究,1992,13(4):333-341.
作者姓名:杨大荣
作者单位:中国科学院昆明动物研究所 650107
摘    要:本文对滇西北昆虫区系特征进行了分析。滇西北昆虫区系具有以下特点:古北区与东洋区种类过渡与交混明显;新发现的种类及特有种和狭布种十分丰富;原始古老的种类多;垂直分布明显。如以江河分水岭为界,尚可分为怒江、澜沧江、金沙江3个小区。滇西北典型的东洋区系成份,一般在海拔3000m以下地区,海拔3000m以上则以古北区系成份为主。

关 键 词:昆虫区系  昆虫学

THE CHARACTERISTICS OF INSECT FAUNA IN NORTHWESTERN YUNNAN PROVINCE
Yang Darong.THE CHARACTERISTICS OF INSECT FAUNA IN NORTHWESTERN YUNNAN PROVINCE[J].Zoological Research,1992,13(4):333-341.
Authors:Yang Darong
Abstract:The present paper deals with the characteristics of insect fauna in northwestern Yunnan province. The insect fauna may be divided into the following natural regions. 1. Nujiang river district. The oriental species make up 47.9 per cent of the total, the palearctic orgion species 31.1 per cent and the endemic species 5.1 per cent. 2. Lancang river district, the element of oriental region species is 38.5 per cent of the total, the palearctic region species 37.1 per cent and the endemic species 8.4%. 3. Jinsha river district, the element of palearctic region predominates over that of oriental region. The oriental species occupy 33.7 per cent of the total, the palearctic region species 34.4% and the endemic species 16.6%. The insect fauna of the northwestern Yunnan region is abundant and strange, because the geomorphology and vegetation of this region are very complicated. The different climates, river system, soil and vegetation on different altitudes of the plateau exert strong influence on the insects in their breeding and multiplication. The insects of the northwestern Yunnan are distinctly distributed into 5 zones by vertical zonation.
Keywords:Northwestern Yunnan  Insect iauna  Oriental region  palearctic region  Endemic species
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