Biodiv Sci ›› 2022, Vol. 30 ›› Issue (3): 21448.  DOI: 10.17520/biods.2021448

• Original Papers: Animal Diversity • Previous Articles     Next Articles

Diversity and influencing factors of flower-visiting insects in the Yanshan area

Yiru Han1,2, Qiqi Xue1,2, Houjuan Song1, Jingyu Qi1,2, Ruihe Gao1,2, Shaopeng Cui1,2, Lina Men1,2,*(), Zhiwei Zhang1,2,*()   

  1. 1 College of Forestry, Shanxi Agricultural University, Taigu, Shanxi 030801
    2 Shanxi Forestry Dangerous Pest Inspection and Identification Center, Taigu, Shanxi 030801
  • Received:2021-11-09 Accepted:2022-01-29 Online:2022-04-07 Published:2022-03-02
  • Contact: Lina Men,Zhiwei Zhang

Abstract:

Aim Our aim is to clarify the relationship between diversity and community structure of flower-visiting insects and their habitat type, disturbance degree, and altitude in the Yanshan area.

Methods Throughout July-August of 2019 and 2020, we collected flower-visiting insects in five habitats, including wetland, forest, shrub, grassland and farmland, with different gradients of 0-1,200 m above the sea level by using the method of transects and light lures.

Result A total of 1,306 flower-visiting insects were collected, belonging to 153 species, 44 families, and 7 orders, among which Lepidoptera had the largest number of species and Hemiptera had the largest number of individuals. The diversity of flower-visiting insects is highest in the shrub cluster. The Shannon-Wiener, Margalef, and Simpson indices are the highest in the middle and low altitudes of 200-400 m. The results of bivariate regression indicate that the Shannon-Wiener and Margalef indices are positively correlated with precipitation in the warmest season and annual precipitation respectively (P< 0.05). Redundancy analysis (RDA) demonstrated that environmental factors significantly affected the diversity of flower-visiting insects, but there was some variation among different measures. Temperature and humidity are positively correlated with the Pielou index and negatively correlated with the Shannon-Wiener, Margalef, and Simpson indices. The results further indicate that scientific management of husbandry activities is the key to protecting the diversity of flower-visiting insects.

Conclusion Scientific management of husbandry activities is the key to protecting the diversity of flower-visiting insects.

Key words: flower-visiting insects, diversity, disturbance degree, redundancy analysis, Yanshan area