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中国生物防治学报 ›› 2019, Vol. 35 ›› Issue (3): 382-389.DOI: 10.16409/j.cnki.2095-039x.2019.03.021

• 研究论文 • 上一篇    下一篇

温度对加州新小绥螨捕食东方真叶螨功能反应的影响

贾静静1,2, 符悦冠2, 张方平2, 梁敏1, 陈俊谕2   

  1. 1. 海南大学热带农林学院, 海口 570228;
    2. 中国热带农业科学院环境与植物保护研究所, 海口 571101
  • 收稿日期:2018-06-19 出版日期:2019-06-08 发布日期:2019-06-17
  • 通讯作者: 陈俊谕,硕士,E-mail:jychencn@163.com
  • 作者简介:贾静静,硕士研究生,E-mail:1353346233@qq.com
  • 基金资助:
    海南省自然科学基金(318QN27);天然橡胶产业技术体系(CARS-33-BC2);中央级公益性科研院所基本科研业务费专项(1630042017009);国家重点研发计划(2017YFD0202100)

Effects of Temperature on Predatory Functional Responses of Neoseiuius californicus to Eutetranychus orientalis

JIA Jingjing1,2, FU Yueguan2, ZHANG fangping2, LIANG Ming1, CHEN Junyu2   

  1. 1. Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China;
    2. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Science, Haikou 571101, China
  • Received:2018-06-19 Online:2019-06-08 Published:2019-06-17

摘要: 为明确加州新小绥螨对橡胶重要害螨东方真叶螨的控害潜能,系统研究了21、24、27、30、33、36℃六个不同温度条件下加州新小绥螨对东方真叶螨各螨态的捕食作用。结果表明:不同温度条件下加州新小绥螨对东方真叶螨各螨态的功能反应均能很好的拟合Holling-Ⅱ型圆盘方程。在21~36℃条件下,加州新小绥螨对东方真叶螨成螨和卵的日均捕食量与捕食效能(a/Th)均在33℃时最强,但对若螨和幼螨的日均捕食量与捕食效能在30℃最强。在27℃条件下加州新小绥螨对东方真叶螨若螨、幼螨和卵的选择系数分别为0.62、1.40和1.01。在相同的猎物密度条件下,加州新小绥螨的平均捕食量随其自身密度的增加而逐渐降低,说明加州新小绥螨存在种内竞争和自我干扰作用,捕食作用率与其自身密度关系为E=0.1631P-0.395

关键词: 加州新小绥螨, 东方真叶螨, 功能反应, 寻找效应

Abstract: To explore the control potential of Neoseiulus californicus (McGregor) on Eutetranychus orientalis (Klein), an important harmful mite occurring in rubber, the predation N.californicus upon different stages of E. orientalis was investigated at six temperatures, i.e., 21, 24, 27, 30, 33and 36℃. The functional responses of N. californicus to E. orientalis at all the temperatures fitted well with the Holling-Ⅱ equation. At 21-36℃, the daily average predation and predation capability (a/Th) of N. californicus towards E. orientalis adults and eggs peaked at 33℃, while peaked at 30℃ when the preys were E. orientalis nymphs and larvae. The selective coefficient of N. californicus for E. orientalis nymphs, larvae and eggs at 27℃ were 0.62, 1.40 and 1.01, respectively. At a certain prey density, the average predation of N. californicus decreased gradually with the increase in its density, indicating an obvious competition and self-interference in N. californicus. The relationship between predation and predator density was established as the equation E=0.1631P-0.395.

Key words: Neoseiulus californicus, Eutetranychus orientalis, functional response, search effect

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