Biodiversity and Fauna Study of Odonata in Tianjin
In order to investigate the biodiversity and fauna of Odonata in Tianjin,different types of habitat locations were selected from 2019 to 2021.On the basis of netting,2259 adult samples were obtained after morphological classification and identification.In 2022 and 2023,a new distribution of dragonfly was found by tracking some sampling points.The investigation suggest that there are 56 native species(including 1 pending species)of dragonflies and damselflies belonging to 35 genera,9 families and 2 suborders.Anisopetera species are dominant,with 6 families,28 genera and 43 species,occupies 76.78％of the total respectively.Zygoptera,with 3 families,7 genera and 13 species,occupies 23.22％of the total respectively.In the discussion of zoogeographical distribution and fauna,the species can be divided in two distribution types:Palaearctic type and Palaearctic-Oriental type.Correspondingly,the species can be divided into 16 floristic types.The Palaearctic-Oriental type is dominant,which contains 44 species and occupies 78.56％of the total species.The Palaearctic type contains 12 species and occupies 21.44％of the total species.Human disturbance acts as a dominant factor which affects the diversity of dragonflies and damselflies.In conclusion,the diversity of dragonflies and dam-selflies in cities and surrounding areas is easily affected by human activities,and the protection measures should be strengthened ac-cordingly.
万方数据
维普
