Variations and interannual dynamic analysis of Lepidoptera moth insect resources in Xinbin County
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.
万方数据
维普
