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应用生态学报 ›› 2005, Vol. 16 ›› Issue (12): 2369-2372.

• 研究论文 • 上一篇    下一篇

温度对椰心叶甲实验种群生长的影响

钟义海1, 李洪2, 刘奎1, 温海波1, 金启安1, 彭正强1   

  1. 1. 中国热带农业科学院环境与植物保护研究所, 儋州 571737;
    2. 海南省林业局, 海口 570203
  • 收稿日期:2004-09-14 修回日期:2004-12-23 出版日期:2005-12-15 发布日期:2005-12-15
  • 通讯作者: 彭正强
  • 基金资助:
    国家"十五"科技攻关项目(2004BA509B17)、社会公益研究专项(2004DIA4J02)、海南省重点科技项目(04112)和海南省教育厅资助项目(2004-2006hjkj200417).

Effects of temperature on Brontispa longissima population growth

ZHONG Yihai1, LI Hong2, LIU Kui1, WEN Haibo1, JIN Qi'an1, PENG Zhengqiang 1   

  1. 1. Institute of Environment and Plant Protection, Chinese Academy of Tropical Agriculture Sciences, Danzhou 571737, China;
    2. Forestry Bureau of Hainan Province, Haikou 570203, China
  • Received:2004-09-14 Revised:2004-12-23 Online:2005-12-15 Published:2005-12-15

摘要: 在不同温度(16、20、2、28和32 ℃)条件下观察椰心叶甲的发育、存活及繁殖情况.结果表明,椰心叶甲在32 ℃恒温下不能存活,在16~28 ℃世代发育起点温度为11.08 ℃,有效积温为966.22日·度,在海南省儋州市1年可发生4~5代.椰心叶甲世代存活率在28 ℃时最高,达92.5%.净增殖率、内禀增长率及周限增长率均在28 ℃时最高,分别为54.1、0.0260和1.0263.平均世代历期和种群加倍时间分别以20 ℃和28 ℃时最短,前者为123.1 d,后者为26.7 d.种群趋势指数以28 ℃时最高,为50.8,表明24~28 ℃为椰心叶甲种群生长的适合温度.

关键词: 椰心叶甲, 实验种群, 温度, 生命表, 种群参数

Abstract: The study on the development,survival and reproduction of Brontispa longissima at 5 different temperature (16,20,24,28,32 ℃) showed that the threshold temperature and effective accumulative temperature for the whole generations of Brontispa longissima were 11.08 ℃ and 966.22 ℃,respectively,and 4~5 generations could occur in a year in Danzhou,Hainan Province.One generation had the highest survival rate (92.5%) at 28 ℃,but failed to survive at 32 ℃.Brontispa longissima reared at 28 ℃ had the greatest intrinsic increasing rate (rm=0.0260),finite increasing capacity (λ=1.0263),and population trend index (I=50.8).The shortest mean generation time (123.1 d) and population doubling time (26.7 d) were obtained at 20 ℃ and 28 ℃,respectively.The temperature from 24 ℃ to 28 ℃ was suitable for the development and reproduction of Brontispa longissima.

Key words: Brontispa longissima, Experimental population, Temperature, Life table, Population parameter

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