Research on Pollinators in North Slope of Changbai Mountain (IV)——The pollinators′ behavior of pollination

We observed the behavior of pollination in the north slope of Changbai mountain during the florescence from 2004 to 2005.After the preliminary appraisal,38 species of pollinators were caught on 22 kinds of nectar source plants,diptera and hymenoptera were the main pollinators.After observation analysis,Apis mellifera Linnaeus and Bombus ussurensis Radoszkowski were determined to be the most effective and stable pollinators,with an extremely high pollination frequency and obvious date rhythm.In addition,temperature drops,cloudy days,and rains and so on all caused the reduction of frequency of pollination.