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应用生态学报 ›› 2004, Vol. ›› Issue (4): 731-733.

• 研究论文 • 上一篇    下一篇

小黑瓢虫与其竞争种作用系统研究:种间竞争

荆英1, 黄建2, 马瑞燕1, 韩巨才1   

  1. 1. 山西农业大学农学院, 太谷 030801;
    2. 福建农林大学植保学院, 福州 350002
  • 收稿日期:2003-05-20 修回日期:2003-11-04
  • 基金资助:
    国家自然科学基金资助项目(30270904);山西省青年科学基金(20031045);山西省自然科学基金资助项目(20031068)

Interactive system of Delphastus catalinae and its competitor:interspecies competition

JING Ying1, HUANG Jian2, MA Ruiyan1, HAN Jucai 1   

  1. 1. Collegeof Agriculture, Shanxi Agriculture University, Taigu 030801, China;
    2. College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2003-05-20 Revised:2003-11-04

Abstract: Delphastus catalinae and Serangium japonicum are the important natural enemies of Bemisia tabaci,of which,the former is exotic,and the latter is indigenous.In this paper,the influence of interspecies competition on the population growth of D.catalinae and S.japonicum was studied under conditions of single and mixed rearing,and Lotka-Volterra equation was used to simulate the competition when more and less preys provided for the two ladybirds.The results showed that the population growth of D.catalinae was greater than that of S.japonicum when single rearing,and the population growth of S.japonicum was greater than that of D.catalinae when mixed rearing.In the competition system of the two ladybirds,S.japonicum was dominant,while D.catalinae could exist simultaneously.

Key words: Delphastus catalinae, Serangium japonicum, Interactive system, Interspecies competition

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