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.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2006年第1期34-36,共3页
Journal of South China Agricultural University
基金
国家"973"项目(2002CB111400)子课题
广东省科技计划项目(2005A20401001)
农业部项目(农财发[2005]16号)
广东省红火蚁防控技术项目(粤农保[2005]26号)
关键词
红火蚁
局域扩散
生境
Solenopsis invicta
location expansion
habitat
作者简介
许益镌（1978-），男，博士研究生；
通迅作者：曾玲（1949-），女，教授，E-mail：zengling@scau．edu．cn
