With the increasing of various environmental pressures,the diversity of pollinators and their conservation research has gradually been emphasized.In order to investigate the basic situation of pollinating insects in the Sanjiangyuan area,this study observed the pollination activities of 14 species of pollinating insects by random sampling method and fixed-point observation method from July to September 2021.A total of 7 247 records of pollination activities were obtained,and 37 species of 13 families,31 genera and 13 genera were observed.The results showed that the flower visiting frequency of pollinator groups was bumblebee(70.13％),other diptera(11.19％),grey butterfly(10.49％)and Nymphalidae(3.08％).The frequency of visiting flowers of other pollinating insect groups was less than 1％,and the pollination effect was weak.Bumblebees showed different peak of flower visiting activities in different plants,for example,there were two peak of flower visiting activities in Pedicularis kansuensis(11:00-12:00 and 18:00-19:00),and there was only one peak period(11:00-12:00)on Gentiana pseudoaquatica.This study showed that bumblebees were the most important pollinating insect group in the Sanjiangyuan area,and the daily activities of bumblebees visiting flowers showed different peak times depending on their own characteristics,the characteristics of the surveyed plants and the external environment.The ecological balance of Sanjiangyuan region cannot be separated from the role of pollinators.Strengthening the protection of pollinators is helpful to the ecological restoration of Sanjiangyuan region.This study is expected to provide reference for future research on pollination biology of pollinating insects in the Sanjiangyuan area,and also provide theoretical data for biodiversity conservation in the Sanjiangyuan area.
关键词
传粉昆虫/传粉活力/熊蜂/三江源地区
Key words
Pollinating insects/pollination activity/bumblebees/Sanjiangyuan area
维普
万方数据