摘要
为保护新宾县生态环境,2006-2021年5-9月调查并分析该县东北部林区的鳞翅目蛾类昆虫,得出该县蛾类昆虫年际资源变化及发生动态情况。结果表明,2014-2017年捕捉的蛾类个体数最多,占总调查个体数的31.22%;而2018-2021年捕捉的蛾类个体数最少,占总调查个体数的18.62%。天蛾科、尺蛾科和夜蛾科的物种数在该县蛾类中处于优势地位,分别为20、19、22种,分别占总种数的16.81%、15.97%和18.49%。2016年调查的个体数最多,为11 186只,优势度系数极高,多样性指数和均匀度极低。在这16年中,有6年是大蚕蛾科的银杏大蚕蛾种群数量占据优势,说明银杏大蚕蛾是栖息在该县的特有优势种群。蛾类多样性年际动态结果显示,2014年后种内竞争动态平衡,种群数量保持稳定无明显变化,2020年夜蛾科和天蛾科蛾类受到环境因素干扰致使种群数量减少。不同年份蛾类群落相似性结果显示,林区蛾类群落结构稳定,相邻两年的相似性数值较高。
A statistical analysis on the Lepidoptera moth insects in the northeast forest area of Xinbin County was conducted from May to September in 2006-2021,in order to protect the ecological environment of Xinbin County,and the annual resource changes and occurrence dynamics of local moth insects were obtained.The results showed that from 2014 to 2017,the number of moths captured was the highest,accounting for 31.22% of the total surveyed individuals,while the number of moths captured from 2018 to 2021 was the lowest,accounting for 18.62% of the total surveyed individuals.The number of species in the Sphingidae,Geometridae and Noctuidae was 20,19,and 22,respectively,which have dominant position among local moths,accounting for 16.81%,15.97%,and 18.49% of the total,respectively.The highest number of individuals was surveyed in 2016(11186),while the dominance coefficient was extremely high,and the diversity index and evenness were extremely low.The number of Dictyoploca japonica has been dominant for 6 yeas,indicating that D.japonica is a unique dominant population in the county.The results of interannual dynamics of moth diversity showed that after 2014,the intraspecific competition was dynamically balanced,and the population remained stable without significant change.In 2020,the number of population of Noctuidae and Sphingidae decreased because of the environmental factors.The results of moth community similarity in different years showed that the community structure of moth was stable,and the similarity value of adjacent two years was higher.
作者
房钢
FANG Gang(Liaoning Forestry Development Service Center,Shenyang 110036,China)
出处
《辽宁林业科技》
2024年第1期16-21,共6页
Liaoning Forestry Science and Technology
关键词
鳞翅目蛾类
物种多样性
年际动态变化
辽宁新宾
Lepidoptera moth
species diversity
interannual dynamic change
Xinbin Liaoning
