作　　者： ; ; ; ; ;

机构地区： 华南农业大学资源环境学院红火蚁研究中心

出　　处： 《华南农业大学学报》 2006年第1期34-36,共3页

摘　　要： 调查研究了红火蚁在特定的生态环境类型中的自然传播扩散规律.结果表明在局部区域传入8年后,红火蚁扩散面积约为226 hm2,扩散边界分别为:向河的上游扩散至262 m处,向河的下游扩散至3 770 m处.红火蚁在几种生境类型中的为害程度也不相同,大小依次为田埂>河堤>路边>房屋周围空地>河床.红火蚁在该区域的扩散速度为187.9 m/年,同时,红火蚁蚁巢在扩散过程中向源头有明显的聚集倾向. The location expansion of the red imported fire ant, Solenopsis invicta Buren, in a special ecology system were investigated and analyzed. The result showed the square area of the infestation was up to 226 hm^2 about 8 years after it was introduced to this area; Expansion distance were as follows： it spread to upper and lower reaches with the distance of 262 and 3 770 m respectively. Active mounds densities were different among different types of habitat, with field bank 〉 riverbank 〉 roadside 〉 village 〉 riverbed. Average expansion speed of red imported fire ant was 187.9 m/year in this area.

关 键 词： 红火蚁 局域扩散 生境

领　　域： [生物学]