《环境昆虫学报》

为探明河南南阳的空中昆虫群落结构，于2021-2023年利用探照灯诱虫器监测了夜间昆虫的种类和动态。3年共诱到昆虫10目42科112种，鳞翅目（13科71种）种类最多，其次为鞘翅目（10科17种）、半翅目（8科12种）；42科中，以夜蛾科（31种）为主，其次是天蛾科（10种）、螟蛾科（6种）。昆虫的群落结构存在年际差异，2021年恒有种为棉铃虫Helicoverpa armigera、劳氏粘虫Leucania loreyi、小地老虎Agrotis ipsilon和甘薯天蛾Agrius convolvuli；2022和2023年恒有种均为棉铃虫和劳氏粘虫；亚洲玉米螟Ostrinia furnacalis、甜菜夜蛾Spodoptera exigua、雀纹天蛾Theretra japonica、铜绿丽金龟Anomala corpulenta、暗黑鳃金龟Holotrichia parallela、东方蝼蛄Gryllotalpa orientalis和油葫芦Cryllus testaceus为常见种；2021年的物种多样性、均匀度最高，Shannon-Wiener指数为2.0709，均匀度指数0.4406，2023年次之，Shannon-Wiener指数为0.7169，均匀度指数0.1544，2022年最低，Shannon-Wiener指数和均匀度指数分别为0.6507、0.1419。3年间，共诱到昆虫149 606头，2022年诱到昆虫60 737头，分别是2021和2023年诱虫量的1.3倍、1.4倍；棉铃虫为当地第1大种群，3年虫量占总虫量的37.79%；其次为暗黑鳃金龟（20.58%）、铜绿丽金龟（10.91%）、甜菜夜蛾（7.82%）和亚洲玉米螟（3.55%），构成了当地的优势种群。本研究初步阐明了南阳地区的昆虫群落结构及种群发生动态，对指导当地害虫测报和防控工作提供了依据。

英文摘要:

In order to explore the community structure characteristics of airborne insects species in Nanyang City of Henan Province, the insect samples were collected by searchlight trapping from 2021 to 2023. A total of 112 species of insects, belong to 42 families, 10 orders,were found, with the most species belonging to the order Lepidoptera (13 families, 71 species), followed by Coleoptera (10 families, 17 species) and Hemiptera (8 families, 12 species). Among the 42 families, the dominant families were Noctuidae (31 species) and Sphindidae (10 species). There were significant inter-annual differences in the composition of the insect community, with the consistent species being Helicoverpa armigera, Laodelphax striatellus, Agrotis segetum and Manduca sexta in 2021, Helicoverpa armigera and Laodelphax striatellus in both 2022 and 2023. The Shannon-Wiener index and evenness index were highest in 2021 (Shannon-Wiener index = 2.0709, evenness index = 0.4406), followed by 2023 (Shannon-Wiener index = 0.7169, evenness index = 0.1544), and lowest in 2022 (Shannon-Wiener index = 0.6507, evenness index = 0.1419). A total of 149 606 insects were trapped over the three years, with the highest trap catch in 2022 (60 737 individuals), which was 1.3 and 1.4 times higher than in 2021 and 2023, respectively. Helicoverpa armigera was the dominant species, accounting for 37.79% of the total trap catch on average. Other dominant species included Callosobruchus Maculatus (20.58%), Anomala corpulenta (10.91%), Spodoptera Frugiperda (7.82%), and Ostrinia Nubilalis (3.55%). This study provides a useful contribution to understanding the insect community structure and population dynamics in Nanyang and may provide guidance for local pest monitoring and control efforts.

查看全文查看/发表评论下载PDF阅读器

关闭