| 王建梅1, 2, 刘长仲1*, 刘爱萍2 *, 高书晶2, 徐林波2, 康爱国3, 张玉慧3.伞裙追寄蝇对黏虫幼虫的寄生功能反应[J].植物保护,2015,41(1):45-48. |
| 伞裙追寄蝇对黏虫幼虫的寄生功能反应 |
| Functional response of Exorista civilis to Mythimna separata larvae |
| 投稿时间：2013-12-11 修订日期：2014-03-25 |
| DOI： |
| 中文关键词: 伞裙追寄蝇 黏虫 功能反应 |
| 英文关键词:Exorista civilis Mythimna separata functional response |
| 基金项目:公益性行业（农业）科研专项（201103002）; 内蒙古应用技术研发项目; “十二五”国家科技支撑计划项目（2012BAD13B07）; 农业部“948”项目（2011-G4） |
| 作者 | 单位 | | 王建梅1, 2, 刘长仲1*, 刘爱萍2 *, 高书晶2, 徐林波2, 康爱国3, 张玉慧3 | 1.甘肃农业大学草业学院, 兰州 730070
2. 中国农业科学院草原研究所, 呼和浩特 010010
3. 河北省康保县植保植检站, 康保 076650 |
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| 中文摘要: |
| 室内条件下研究了伞裙追寄蝇(Exorista civilis Rondani)对黏虫［Mythimna separata (Walker)］幼虫的寄生功能反应。结果表明, 伞裙追寄蝇功能反应曲线在15~35 ℃内为HollingⅡ型, 随着寄主黏虫数量的增加, 伞裙追寄蝇寄生量呈上升趋势, 当寄主数量增加到一定数量时, 其寄生量趋于稳定。23 ℃时拟合方程为Na=0.803 3 N/(1+0.803 3×0.015 4 N), 1头伞裙追寄蝇雌蝇寄生1头黏虫幼虫所需时间为0.803 3 h。伞裙追寄蝇的自身密度对寄生有干扰作用, 可用Hassell-Varley模型E=0.553 3 P-1.565 5表示, 由此公式可以得出, 伞裙追寄蝇的发现域与其自身密度成反比增加, 寄生蝇相互之间的干扰效应降低了寄生效能。 |
| 英文摘要: |
| The parasitic functional response of Exorista civilis Rondani to Mythimna separata (Walker) larvae was observed in the laboratory. The results showed that the functional response belonged to Holling type Ⅱ in a certain temperature range (15-35 ℃). The number of parasitized larvae increased with the increase of the larvae density, but the searching efficiency decreased with the increase of E. civilis and M. separata density. At 23 ℃, the functional response could be expressed as Na=0.803 3 N/(1+0.803 3×0.015 4 N). The time spent in one host parasitized by single E. civilis was 0.803 3 h．The density of E. civilis affected the parasitism to some extent and the interference fitted Hassell-Varley model, which could be well simulated as E=0.553 3 P-1.565 5, indicating that the discovery domain of E. civilis decreased with increasing density of itself．The interference between parasites weakened the parasitic function. |
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