【摘要】 2009年4月-2010年3月对深圳市某荒地红火蚁(Solenopsis invicta Buren)工蚁虫口密度以及蚁巢密度进行了自然消长动态规律的调查与分析。结果表明:深圳市红火蚁工蚁全年的活动表现为明显的多峰型,第1个高峰出现在4月下旬至7月上旬,第2个高峰出现在9月上旬至10月下旬,第3个高峰出现在次年2月下旬至3月下旬,且峰值依次降低;红火蚁活动蚁巢密度由2月下旬开始逐渐升高,5月上旬至8月下旬为高峰期,活动蚁巢密度9月上旬开始持续降低,直至次年2月中旬达到全年的最低值,2月下旬活动蚁巢密度又开始升高;新增蚁巢出现在4月至7月、11月以及次年2-3月,其中4月中旬新增蚁巢密度为全年最高;5-6月、8月以及次年2-3月未发现蚁巢消亡,而其他月份都有不同程度消亡,消亡蚁巢密度的最高值出现在9月上旬。红火蚁工蚁虫口密度与地表温度、活动蚁巢密度与旬平均气温之间均为正相关。更多还原

【Abstract】 The natural dynamics of the population density and mound density of imported fire ants Solenopsis invicta Buren has been studied from April 2009 to March 2010 in Shenzhen City.The results were as follows: the population density of workers appeared in curve with multiple peaks,the primary peak during late April to early July,the second peak during early September to late October,and the rest during mid February to late March in order.The mound density began to increase in late February,with the peak during early May to late August,and it started to decrease in early September until the bottom in mid February of the next year;afterwards,it began to rise in late February.New mounds appeared respectively during April to July,in November and in February and March of the following year,with the highest density in mid April.The disappearance of the mounds occurred throughout the year,except in May,June,August and next February,March,and the highest number of mound disappearance occurred in early September.The population density and surface temperature,active mound density and ten day average temperature there have a positive correlation.更多还原