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作 者 ：任顺祥,郭振中,熊继文

期 刊 ：生态学报 1991年 11卷 3期 页码：237~241

关键词：二双斑唇瓢虫；发育速率；内禀增长率；过冷却点；

Keywords:Chilocorus bijugus Mulsant, developmental rate, innate capacity of increase （rm）, supercooling point.,

摘 要 ：本文研究了温度对二双斑唇瓢虫发育和种群增长的影响,结果表明,二双斑唇瓢虫发育的最适温度为18—23℃,临界最低温度为5℃左右,临界最高温度为38—41℃。在17—31℃温度范围内,以25℃的存活率最高,以31℃的存活率最低。越冬成虫的抗寒性较强,1985年越冬期间的过冷点温度平均为-4.26—-5.6℃。测得在室温下二双斑唇瓢虫的内禀增长率(r)为0.0402,周限增长率(λ)为1.0410,净增殖率(R_o)为89.63,世代平均时间为111.76天。

Abstract:The present paper deals with effects of temperature on development and growth of Chilocorus bijugus Mulsant population. The results show that the most favourable temperature of development falls in the range of from 18℃ to 23℃. The lowest and highest threshold temperatures are about 5℃ and from 38℃ to 41℃, respectively. The highest and lowest survival rates occur at 25℃ and 31℃, respectively. The supercooling point is measured to be in the range of -4.26℃ through -5.60℃ during the hibernating period. The in...

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