| ,2014,蝇蛹金小蜂对桔小实蝇蛹的寄生功能反应[J].环境昆虫学报,(1):122-126 |
| 蝇蛹金小蜂对桔小实蝇蛹的寄生功能反应 |
| Parasitical efficiency of Pachycrepoideus vindemmiae Rondani on the pupae of Bactrocera dorsalis (Hendel) |
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| DOI： |
| 中文关键词: 桔小实蝇蛹 蝇蛹金小蜂 功能反应 干扰反应 |
| 英文关键词:Bactrocera dorsalis Pachycrepoideus vindemmiae functional response disturbance hypothesis |
| 基金项目:公益性行业（农业）科研专项经费项目（200903047） |
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| 中文摘要: |
| 在温度25±1℃、相对湿度70±5%、光照周期（L∶D）14 h∶10 h条件下，研究了蝇蛹金小蜂对桔小实蝇蛹的寄生功能反应及干扰效应。结果表明，寄主密度、寄主日龄均影响寄生蜂的寄生效能。蝇蛹金小蜂对桔小实蝇2日龄（N=2）、4日龄（N=4）蛹的寄生功能反应均符合HollingⅡ模型，其方程分别为Na= 0.4494N2/ (1+ 0.0294N2)、Na= 0.5586N4/ (1+ 0.0253N4)。24h内单头雌成蜂最多可寄生2日龄、4日龄蝇蛹数量分别为15.29、22.08头。自身密度对蝇蛹金小蜂寄生产生一定的干扰效应，其干扰效应符合Hassell－Varley模型（a= 0.0719P－0.2526），表明蝇蛹金小蜂雌蜂的发现域随着自身密度的增加而逐渐变小，雌蜂个体间干扰效应降低了寄生效能。 |
| 英文摘要: |
| The functional response and interference of Pachycrepoideus vindemmiae to pupae of Bactrocera dorsalis (Hendel) were observed at 25±1℃, RH with 70±5 % and photoperiod with (L∶D)14 h ∶10 h. Results showed that the pupa density of B. dorsalissignificantly affected parasitism of P. vindemmiae. At different pupal ages, the parasitic functional response of P. vindemmiae to B. dorsalisfitted Holling Ⅱ type without exception，but the functional response parameter at the varity of pupal age were significantly different. The functional response can be expressed as Na= 0.4494N2/ (1+ 0.0294N2) (2 days-old) and Na= 0.5586N4/ (1+ 0.0253N4) (4 days-old) by the HollingⅡequation. The numbers of pupa parasitized by single femaleP. vindemmiaein 24h were 15.29 and 22.08 for 2 day old and 4 day old pupae, respectively. In addition, the density of P. vindemmiae affected the parasitism to some extent and the interference fitted Hassell-Varley model, which could be well simulated as a= 0.0719P－0.2526, and the equation indicated that the discovery domain of female P. vindemmiae decreased with increasing density of itself. The interference between female wasps weaken the parasitic function． |
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