宁夏3大林区蝶类多样性及其区系特征

为了解掌握宁夏主要林区的蝶类资源，对宁夏贺兰山、罗山和六盘山3个林区的蝴蝶进行了系统的样线调查和统计。调查结果表明，贺兰山保护区已知蝴蝶7科39属55种，罗山保护区蝴蝶6科38属47种，六盘山保护区蝴蝶6科68属135种。罗山与贺兰山保护区共有种29种，相似性系数最高为0.3973。3大林区蝶类以广布种及典型的古北型种为主；在中国动物地理区划中，以蒙新区种类为主体，同时也表现出很强的华北区与东北区特征。 G-F指数分析结果表明，六盘山自然保护区蝶类的G、 F指数以及G-F指数均高于罗山与贺兰山，是宁夏蝶类丰富度最高的林区。

Species Diversity and Fauna Characteristics of Butterfly in 3 Major Forest Areas of Ningxia Province

To understanding the species diversity and fauna characteristics of butterfly in Ningxia , a systematic survey was carried out in 3 major forest areas of Helan Mountain , Luo Mountain and Liupan Mountain .The result showed that there were 55 butterfly species belonging to 7 families and 39 genera in Helan Mountain , 47 butterfly species belonging to 6 families and 38 genera in Luo Mountain , and 135 butterfly species belonging to 68 genera in 6 families in Liupan Mountain , and there were greatest number of species in these 3 major forest areas .The simi-larity coefficient between Helan Mountain and Luo Mountain is 0.397 3 with species number of 29.Based on the fauna analysis , the main fauna elements of butterfly are Palaearctic Region species and widely distributed species . In terms of Chinese fauna , besides the main component of Mengxin , the component of butterfly resources in these 3 areas belong to North China and North East .The G index , F index and G-F index in Liupan Mountain is higher than that of Helan Mountain and Luo Mountain , and it is the highest butterfly diversity forest area in Ningxia Prov-ince.