拟裸蝗属昆虫生物地理研究

采用支序生物地理学的方法对拟裸蝗属昆虫生物地理进行了研究。研究表明各地区明显地分为两个类群,同时地区分化分4次完成,保山、个旧和昭通为较早分化地区。并推测拟裸蝗属的形成可能在第1次冰期,其起源地在云南、四川两省交界的横断山东部地区,种的分化在第3次冰期之后,主要集中在新仙女木降温事件前后。冰期和间冰期的交互出现所导致的气温剧烈变化是促使其分化成种的主要原因。并认为拟裸蝗属昆虫今后的分布区域将进一步缩小,并向更高海拔的山地迁移。

Biogeography Research of Conophymacris Willemse

Conophymacris Willemse lived only in Yunnan and Sichuan provinces in China.Using cladogram biogeography methods,the biogeography of Conophymacris Willems was researched.The results showed that areas separated two parts obviously;the time maybe in the interval iceage between the second and third iceage,and at the same time there had four separating events totally.Baosan,Gejiou and Zhaotong were earlier areas where separated from other areas.Basing on the areas cladogram,paleogeography,paleogeology,and paleoclimate,the analysis showed genus Conophymacris Willemse had come into being in the first iceage,and the origin area of the genus at the east of Hengduan Mountains,between Sichuan and Yunnan provinces.The species differentiation time was late for the third iceage,mainly before or the late for the Fairy event.The reason of the species differentiation was the temperature fluctuation because of the iceage alternating with the interval frequently.Basing on the biogeography history of Conophymacris Willemse,ecology,the distribution pattern and the development tendency of air temperature today,the conclusion could be inferred that Conophymacris Willemse will go from low height to higher mountain areas,and the distribution areas will narrow.Basing on this fact,the protection of Conophymacris Willemse is very important and urgent today.