Changes of Insect Community Diversity in Gangcha County,Qinghai Province
In order to understand the current situation of insect community diversity in Gangcha County,Qinghai Province,the local insects were collected by using the transect method in August 2021 and August 2022.In 2021,more than 5 000 insect specimens were collected and identified,belonging to 7 orders,40 families,52 genera,and 57 species.In 2022,more than 600 insect specimens were collected and identified,belonging to 7 orders,32 fami-lies,42 genera and 48 species.The results showed that during 2021 to 2022,the diversity index of Hemiptera was the highest in Gangcha county,Qinghai Province,followed by Diptera and Hymenoptera.The diversity index of Lepidoptera increased significantly in 2022.During 2021 to 2022,Diptera,Coleoptera and Hemiptera were the dominant groups in Gangcha County.According to meteorological data,the spring and autumn of 2021 was rainy,with an average annual precipitation of 398.8 mm,4.6%more than in previous years;In 2022,there was high tem-perature,low precipitation,frequent extreme weather in Qinghai Province,and a 4.2%decrease in rainfall com-pared with previous years,which made the dry land in Gangcha County increase seasonally and the water area de-crease,it might be one of the main reasons for the general decrease in insect diversity indicators.
NETL
NSTL
万方数据
