中国斑腿蝗科特有种的分布及特有分布区划分

Distribution and area of endemism of Catantopidae grasshopper species endemic to China

按照150km×150km对中国陆地部分进行栅格划分,收集整理了中国斑腿蝗科237个特有种在各栅格的分布信息,建立了物种(237)×栅格(168)数据矩阵,研究了中国斑腿蝗科特有种的分布规律并用PAE法进行特有分布区划分。结果表明:除天山山地分布的少数几个种外,中国斑腿蝗科特有种基本分布西南-东北走向。在该范围内南多北少。华南和西南是中国斑腿蝗科特有种最丰富的地区,在秦巴山区、藏东南和浙闽丘陵地带各有一个高密度的分布区。11个特有分布区中5个分布在东洋界部分,两个在中国东部古北和东洋界交界区,天山山地有一个分散的特有分布区,东北有2个特有分布区。特有分布区的分布和划分基本和中国动物地理区划及区系相一致,但台湾地区归入华中区;横断山和秦岭山地的栅格在支序图中多形成未决分类单元,特有分布区划分困难;华南和华中地区的特有分布区可以进一步划分成更小范围的特有分布区;从云南西北的腾冲。

China was divided into a geographic grids of 150km×150km cells and distribution information of 237 Chinese endemic Catantopidae grasshopper species was gathered to construct a data matrix of species×grids. Based on the data matrix, the distributions of Chinese endemic Catantopidae grasshopper species were analyzed. Parsimony analysis of endemicity （PAE） was used to identify areas of endemism. Except a few species in the Tianshan Mountains, most Catantopids endemic to China were distributed in the region of Southwest-Northeast China. In this region, density in the south is higher than in the north, Both South China and Southwest China hold high density of endemic grasshopper species. Qinling Mountains, the Southeast Tibet and the highland in Zhejiang-Fujian have areas of higher density endemic grasshopper species. Eleven areas of endemism were identified. Among them, five were located in the Oriental realm, two in the borderline between the Oriental realm and the Palaearctic realm, one scattered in the Tianshan Mountains and two in Northeast China. The regions and the distribution of these areas of endemism are mostly in congruence with the Chinese zoogeographical region division and fauna, except for several special areas. Taiwan is close to the Middle China region. Most grids of Qinling Mountains and Hengduanshan Mountains formed unresolved units in the cladogram so it was difficult to identify the area of endemism in these two regions. The clades of South and Middle China consisted of several small clades. They can be divided into small areas of endemism. A narrow area, which covers Tengchong, Baoshan, the South of Guizhou extending to Guilin, is an area of endemism which has not been identified in former studies [Acta Zoologica Sinica 51 （4）： 624-629, 2005].