STUDY ON SPECIES COMPOSITION OF INSECTS AT VAN LONG WETLAND NATURAL RESERVE, NINH BINH PROVINCE

Abstract

The study aimed to determine the species composition of beetles and their distribution in 3 habitats in Van Long wetland nature reserve, Ninh Binh. Direct investigation method of beetles at 3 habitats have been used. The results show that there are 54 species of beetles belonging to 12 families, 42 varieties. Chrysomelidae family has the highest number of species and varieties with 10 species, accounting for 18.52% and 7 varieties, accounting for 16.67%. The Tenebrionidae family have the lowest number of species and variety with only one, accounting for 1.85% and 2.38% respectively. The Chrysomelidae species of beetles appear in natural and planted forests, colonial habitats and mountainside shrubland, agricultural and fruit tree habitats. Species of the family Coccinellidae, Carabidae and Staphilinidae appear in colonial habitats and shrubs growing along the mountainside, agricultural and fruit tree habitats. In conclusion,the beetles in Van Long wetland nature reserve, Ninh Binh is quite diverse and the family Chrysomelidae species distribute in all habitats in the study area.