钦州红火蚁分布特点及其传播趋势

Distribution characteristics and spreading trend of red imported fire ant in Qinzhou

广西于2005年发现了红火蚁,对生态和生产生活造成了严重影响,全区各地开始加强对红火蚁的防控。本研究基于OvitalMap和ArcGIS对钦州部分地区的红火蚁发生情况进行了调查。调查结果表明:红火蚁蚁巢密度在工厂附近最大,农田、商铺、工地、人工林地次之,公园、生活区、自然林最小;在调查区域内红火蚁以轻度发生为主;红火蚁有由港口向市区传播的趋势。这说明红火蚁已适应了钦州的生态环境,应加大防控力度阻止其进一步扩散。

Red imported fire ant,Solenopsis invicta Buren,was first discovered in Guangxi Autonomous Region,in 2005,which had a serious impact on ecological environment and human’s manufacture and life.The Guangxi government had taken measures to strengthen its prevention and control. Based on OvitalMap and ArcGIS,this study investigated the occurrence of red imported fire ant in some areas of Qinzhou. The results show that the nest density of Solenopsis invicta have the largest amount near the factory,followed by farmland,shop,construction site and artificial forest land,while the park,living area and natural forest have the least. In the investigated area,the red imported fire ant mainly occurs in a light degree. The red imported fire ant has a spreading trend from ports to urban areas. The red imported fire ant has adapted to the ecological environment of Qinzhou. Therefore,we should strengthen measures to prevent its further spread.