【作者】 王志英； 岳书奎； 张国财；

【Author】 Zhi-ying Wang Shu-kui Yue Guo-cai Zhang (Forestry Department of Northeast Forestry University,Harbin 150040)

【机构】 东北林业大学林学系；

【摘要】 分布于哈尔滨地区的兴安落叶松鞘蛾幼虫过冷却点最低为-41.09℃,分布于红花尔基地区的红松实小卷蛾,松梢小卷蛾、广肩小蛾幼虫的过冷却点最低分别为-49.22℃、-42.50℃和-42.23℃;栖息于同一地区的红松实小卷蛾、曲姬蜂和广肩小蜂幼虫,由于各自的越冬场所不同,过冷却点也有差异;红松实小卷蛾的幼龄幼虫,老龄幼虫和蛹的过冷却点分别为-45℃以下、-36.2℃和-17.17℃,说明同种昆虫的不同发育时期对低温的忍耐能力具有明显差异;曲姬蜂和广肩小蜂幼虫由于外界温度变化,其过冷却点也随之变化;樟子松球果象甲成虫越冬前补充营养与冬季死亡率和过冷却点有直接关系。更多还原

【Abstract】 The relationships between geographical distributions,overwintering places and natural temperatures and under-cooling points of insects,as well as the relationship between compensation nutrition and cold tolerance,were analyzed in this paper.There were differences between Coleophora dahurica in Harbin and Petrove resinella in Honghuarji.The under-cooling points of insects in different overwintering places were different.The cold tolerance of matured and young larvae had great difference,too.There was close relation between cold tolerance of Scambus sp.,Eurytoma sp.and natural temperature.更多还原