入侵害虫西部喙缘蝽和红肩美姬缘蝽在中国的潜在分布

Potential distribution of Leptoglossus occidentalis and Jadera haematoloma in China

为阻止入侵害虫西部喙缘蝽和红肩美姬缘蝽在中国大陆地区建立种群,对这2个物种在中国的生态适宜空间进行分析.基于文献资料构建西部喙缘蝽和红肩美姬缘蝽的分布数据库,即分别在二者的本土分布地区构建Maxent生态位模型,然后将模型转移并投射至东亚地区,对模型进行检验,进而预测这2种缘蝽在中国的适宜空间.研究结果表明:西部喙缘蝽和红肩美姬缘蝽在中国占有的生态空间较大,潜在地理分布范围较广.西部喙缘蝽的潜在分布区包括中国的中部地区及西南地区;红肩美姬缘蝽的潜在分布区包括中国中部及南部的大部分地区,东南沿海也具有较大的分布可能性.由此认为,中国中部沿海地区应加强西部喙缘蝽检疫,东南沿海地区应加强红肩美姬缘蝽检疫,防止这2种缘蝽在中国大陆地区建立种群.

In order to prevent two invasive true bugs, i.e. Leptoglossus occidenta!is and Jadera haematoloma, to establish population in the mainland of China, their suitable ecological spaces in China were analyzed. The occurrence data of L. occi- dentalis and J. haematoloma were attained from literatures at first. Ecological niche models of Maxent were then calibrated in the native areas of L. occidentalis and J. haematoloma and transferred to East Asia to test the robustness of niche model pre- diction and predict their potential invasion in China. Many suitable ecological spaces were observed in the mainland of China for both L. oecidentalis and J. haematoloma. The suitable space for L. occidentalis mainly distributed in the middle and south- western China, whereas the suitable space for J. haematoloma existed in most areas in the middle and southern China. Based on this analysis, special quarantine inspection of L. occidenta!is should be paid in the coastal areas of middle China and the quarantine inspection of J. haematoloma should be paid in southeastern coastal areas of China.