Insect species faunal composition in Mulan Paddock National Forest Park,Hebei Province
This study is based on our field investigation of insect resources in Mulan Paddock National Forest Park since 2015.Through species identification,relevant literature records,species collection and data analysis,we had obtained the preliminary results of insect species diversity and fauna composition in this area:① 1 240 species of 820 genera,159 families,25 orders,4 classes had been obtained,of which 98.23%was class Insecta;The total number of species of Protura,Collembola and Diplura accounted for 1.77%;② Lepidoptera and Coleoptera were the main parts of the insect species diversity in this area.The former 482 species,accounting for 38.87%,and the latter 421 species,accounting for 33.95%.The number of both species accounts for 72.82%of the total known species,while the sum of other species accounts for 27.18%;③ Based on the analysis of the insect fauna composition in this region by taking the genus level rank element as an example,it was shown that in the world zoogeographical region,the insect fauna composition in this region was the most significant in the Palaearctic and Sino Japanese.The former was 767 genera,accounting for 93.54%,and the latter was 724 genera,accounting for 88.29%;④Among the zoogeographical regions of China,the insect distribution types in this region were the most widespread genera across 7 regions,with a total of 153 genera,accounting for 18.66%,followed by the Northeast+Mengxin+North China,with a total of 120 genera,accounting for 14.63%,while the common genera with northeast+Mengxin+North China+central China+South China+southwest were 112 genera,accounting for 13.66%;Including the common genera,all insect genera in the region were most closely related to North China,with 820 genera,accounting for 100%,followed by Mongolia Xinjiang region and northeast region,with 691 species,accounting for 84.27%and 663 species,accounting for 80.85%,respectively;⑤ According to the ecological function,the insect resource types in this area were preliminarily divided into 7 categories,and their proportions were in the order from high to low:348 pollinators(28.06%)>254 natural enemies(20.48%)>217 environmental monitoring insects(17.50%)>207 ornamental insects(16.69%)>112 medicinal insects(9.03%)>90 cleaning insects(7.26%)>45 edible(including feeding)insects(3.63%).The paper also discusses some problems existing in the research results of insect diversity in Mulan Paddock National Forest Park.