江西官山半翅目和鞘翅目昆虫群落结构及区系分析OA

[Objective]This study aimed to study the species composition and zoogeographic characteristics of Hemiptera and Coleoptera insects in Jiangxi Guanshan National Nature Reserve,and to clarify the community structure,faunal composition and geographical transitional attributes.[Method]From 2024 to 2025,systematic investigations were conducted by using transect and light-trapping methods.Combined with morphological classification and historical data,the family,genus and species composition,dominant groups,genus-species ratio coefficients and distribution patterns in the world and Chinese zoogeographic regions of the two groups were analyzed.[Result]A total of 47 families,218 genera and 337 species of Hemiptera and 45 families,208 genera and 300 species of Coleoptera were recorded.Hemiptera was dominated by the family Pentatomidae(54 species)and Cicadellidae(52 species),with a relatively concentrated species composition;Coleoptera was dominated by the family Cerambycidae(57 species),with a more balanced distribution.The genus-species ratio coefficients of the two groups were 0.65 and 0.69,respectively,showing"broad base"structures,with over 50%of the families being monogeneric and over 40%being monospecific.In terms of world zoogeographic regions,the Oriental component of Hemiptera accounted for 67.65%,with significant regional characteristics;for Coleoptera,the Oriental-Palaearctic shared component was dominant(54.00%),indicating strong cross-regional distribution ability.In the Chinese zoogeographic regions,Hemiptera was mainly of the"Central China+South China"type(47.77%),while Coleoptera was mainly of the"Central China+South China+Southwest China"widespread type(39.00%),with a relatively high proportion of national widespread species(2.67%).[Conclusion]Guanshan Nature Reserve is an important conservation area for Oriental characteristic insect resources and a key transitional zone between the Oriental and Palaearctic components.The research results can provide a scientific basis for insect diversity conservation and ecosystem management in this region.