Bird Diversity and Fauna Composition in Longmen Mountain Area
Bird diversity is an important monitoring indicator of ecosystems,in order to grasp the bird resources in Longmen Mountain area,a survey was conducted from March 2021 to May 2021 using the sample line method,and combined with the relevant literature search,the statistics showed that there are 580 species of birds in 20 orders and 77 families and 280 genera distributed in Longmen Mountain area,of which there are 350 species of birds in 43 families of the order of the order of birds of the order of birds of the order of Passeriformes,accounting for 60.3%of the total number of all birds,and 230 species in 34 families of the order of non-Passeri-formes(39.7%).60.3%,and 230 species(39.7%)from 34 families of non-finch-like orders.There are 129 species of wild birds un-der national key protection;2,5 and 19 species are evaluated as critically endangered,endangered and vulnerable in the IUCN Red List of Species;64 species are listed in the Appendix of CITES;and 38 species of endemic birds are found in China.The composition of birds in Longmen mountain area is characterized by both the Toyozoic and Palaearctic components,with 295 Toyozoic species(50.9%)accounting for more than 230 Palaearctic species(39.7%),and 55 widespread species(9.5%)