PurposesTo reveal the relationship between the species diversity and community characteristics of sphecid wasps and the different habitats in Xishuangbanna Dai Autonomous Prefecture.
MethodsThe species and community of sphecid wasps in the different succession stages of five habitats (naturally restored forest, artificially restored forest, forest platform area, ornamental agroforest and tropical rain forest) were investigated systematically by using Malaise trap.
ResultsThere were 395 sphecid wasp individuals in 5 sample plots belonging to 2 families, 19 genera and 72 species. The genus with the largest number of species was Trypoxylon, accounting for 22.22% of all species; the genus with the largest number of individuals was Psenulus, accounting for 29.87% of the total number of individuals. The Shannon-Wiener diversity and Margalef richness indexes of sphecid wasps were as follows: ornamental agroforest>naturally restored forest>tropical rain forest>artificially restored forest>forest platform, while the Pielou evenness index of tropical rain forest and Berger-Parker dominance index of ornamental agroforest were the highest; the similarity index of communities between different habitats was between 0.0833 and 0.3617, which was dissimilar or very dissimilar, indicating that different habitat types determined the distribution of sphecid wasps.
ConclusionsThe species diversity and community characteristics of sphecid wasps were closely related to the environment change. With the complication of the ecological environment, the dominant group replacement trend of sphecid wasp community was obvious, the dominant group increased and the relative abundance decreased. This study are of great significance for further research on the coevolution of sphecid wasps and the ecological environment, sphecid wasps as indicators of the restoration degree of the ecological environment, and the protection and utilization of sphecid wasps.
DownLoad: