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圆盘方程
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  disc equation
     Improvement of Holling's Disc Equation
     Holling圆盘方程的改进
短句来源
     Simulating Holling′s disc equation with LR I is better than with LR Ⅱ method.
     而对HollingⅡ型圆盘方程的拟合,用LRⅠ法比LRⅡ法为优。
短句来源
     the fitted Holling disc equation was Na=1.1576Nt/(1+0.00348Nt), χ 2 test showed that the theoretical expectation calculated by the fitted Holling disc equation fitted well with the observed value. The predation selectivity experiment revealed that adult C.
     七星瓢虫成虫对烟蚜的功能反应属HollingⅡ型反应 ,拟合的圆盘方程为Na =1 .1 5 76Nt ( 1 +0 .0 0 3 48Nt) ,χ2 检验表明圆盘方程理论值与实测值相符。
短句来源
     The results showed that, the functional response was described well by Holling's disc equation at temperatures range of 18~34℃.
     结果表明 ,在试验温度范围内 ,各温度下的功能反应实验数据均能用 Holling圆盘方程较好地拟合。
短句来源
     preoviposition stage 17.6±0.04℃,34.1 day-degrees; one generation 18.2±0.10℃,170.3 day-degrees。 According to calculation byusing Holling's disc equation(1959),the maximum of preying cotton aphids of 1-4 instarlarva and adult were 6.7,36.4,77.5,81.3 and 68.0 per day,respectively.
     据Holing圆盘方程测定,1─4龄幼虫和产卵前期成虫日最大捕食棉蚜量依次力6.7头、36.4头、77.5头、81.3头和68.0头。
短句来源
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  disk equation
     REVIEW OF METHODS FITTING HOLLING DISK EQUATION
     HOLLING圆盘方程拟合方法概述
短句来源
     Method for Estimating Parameters of Holling Disk Equation
     Holling圆盘方程参数估计方法的研究
短句来源
     A NEW FITTING METHOD OF HOLLING DISK EQUATION
     Holling圆盘方程拟合的一种新方法
短句来源
     The present paper proposed a new fitting method, weighted least square method, for estimat-ing parameters of Holling disk equation and the formula for estimating the parameters were ob-tained in the form of: Comparing results showed that the fitting results of the weighted least square method wasbetter than those of other methods, with good stability and easiness.
     本文直接对Holling圆盘方程用最小二乘法,提出一种新的拟合方法——加权最小二乘法,并由此得到了Holling圆盘方程参数T_h,a′的估计式。 比较结果表明:加权最小二乘法拟合结果较好,且拟合效果稳定,方便实用。
短句来源
     This paper put forward the weighted method for error of disk equation's parameters estimation, applying the weighted method for linearization after the Ho-lling disk equation had heen linearized.
     本文将Holling圆盘方程线性化后,运用线性化中的加权处理办法,提出了圆盘方程参数估计的误差加权方法。
短句来源
  “圆盘方程”译为未确定词的双语例句
     The functional responses of %Pardosa astrigera% to the vegetable aphides was able to be simulated by Holling-Ⅱ equation.
     用Holling圆盘方程进行模拟, 其功能反应属于HollingⅡ型;
短句来源
     The results showed that the equation-II of Holling could describe the functional responses of the adults and 4th-instar larva of Hippodamia (Adonia) variegata ( Goeze) to the density of Aphis citricola.
     结果表明,多异瓢虫成虫及4龄幼虫对绣线菊蚜密度的功能反应能用Holling-Ⅱ型圆盘方程较好地拟合;
短句来源
     Functional response models of Delphastus cataline to eggs of Bemisia tabaci belonged to Holling Ⅱ.
     小黑瓢虫对烟粉虱卵的功能反应符合Holling Ⅱ型圆盘方程
短句来源
     Ha=a(bHt/1+bHt)~x(C≥1)where a is the maximum eating number, and (c-1)/b is the optimum prey density for searching by predator.
     当c>1时,模型描述Ⅲ型曲线。 当c=1时模型即为圆盘方程
短句来源
     1.The functional response of different instars and stages of chrysoperla sinica (Tjeder) or Orius minutus ( L) to different instars and stages of the glasshouse whitefly Trialeurodes vaporariorum (Westw) is fit to HollingⅡtype.
     1中华草蛉和微小花蝽的捕食功能反应都属HollingⅡ型,捕食量随猎物密度的增加而增大,都可以用圆盘方程进行拟合;
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  disc equation
This result supports the use of Holling's disc equation to specify the rate of energy intake in foraging models.
      
Parasitization and host feeding by the parasitoid population were modelled by means of a modified disc equation.
      
The number of spider mites eaten as a function of initial density was fitted to the disc equation.
      
Data for each size class were fitted to Holling's disc equation.
      
  disk equation
The Holling Disk Equation was introduced to build up the models of functional responses.
      


The predatory rate of Leis axyridis rises monotonically to a maximumattack rate with the increase of Rhopalsiphum padi's density,if the aphis'density was within the range of 20—55 individuals.The survey data were(?)ted in with the Holling's disc equation.

当小米蚜在20—55头密度范围内,异色瓢虫日捕食量随猎物密度增大而趋于一个最大值。用 Holling 圆盘方程对观察结果进行拟配,其相关程度达极显著水准。

With three structural models,this paper proceeds the analysis of field data on the interaction of the parasite Elaehertus sp.and its host,the citrus leaf-miner (Phylloenistis citrella Stainton). The functional response of Elaehertus sp.to the citrus leaf-miner is described by using Holling(1959)'s“disc equation”while the functional response of the parasite to its density is calculated by employing Hassell and Varley (1969)'s model.The parameters of the two models are as follows. Instantaneous attack rate: α=0.1242...

With three structural models,this paper proceeds the analysis of field data on the interaction of the parasite Elaehertus sp.and its host,the citrus leaf-miner (Phylloenistis citrella Stainton). The functional response of Elaehertus sp.to the citrus leaf-miner is described by using Holling(1959)'s“disc equation”while the functional response of the parasite to its density is calculated by employing Hassell and Varley (1969)'s model.The parameters of the two models are as follows. Instantaneous attack rate: α=0.1242 Handling time.T_h=0.1316 Maximum number of the host attacked per parasite: N′_a=7.6 Quest constant:Q=0.5226 Mutual interference constant:M=0.8126 Thus,by taking the two functional responses into consideration,we use Hassell and Roger (1972)'s model to simulate the functional response and test its correctitude according to the field data for the following year.

根据田间调查材料,分别以 Holling 圆盘方程、Hassell 和 Varley 模型及 Hassell 和 Roger 模型分析了桔潜蛾姬小蜂对寄主密度的功能反应,对自身密度的功能反应以及对寄主密度,自身密度的共同反应.模拟结果,各参数如下:瞬时攻击率 a=0.1242处理时间 Th=0.1316寄生上限 Na’(∞)=7.6搜索常数 Q=0.5226相互干扰常数 m=0.8126与国内外报导的资料比较,上述参数基本上符合天敌的理想属性,从理论上证明桔潜蛾姬小蜂是有保护利用前途的寄生昆虫。

The parasitizing effect of Snellenius manilae(Ashmead),a Braconid endoparasite of Spodoptera litura (Fabr.), was studied in the laboratory. The functional response of the wasp to different host density belonged to Holling's type Ⅱ (1959). The wasp reacted markedly to the presence of other hunting individuals nearby. The net effect of this mutual interference was that the searching and attacking efficiency beeame an inverse function of the wasp density on Watt's model (1959), the number of the host parasitized...

The parasitizing effect of Snellenius manilae(Ashmead),a Braconid endoparasite of Spodoptera litura (Fabr.), was studied in the laboratory. The functional response of the wasp to different host density belonged to Holling's type Ⅱ (1959). The wasp reacted markedly to the presence of other hunting individuals nearby. The net effect of this mutual interference was that the searching and attacking efficiency beeame an inverse function of the wasp density on Watt's model (1959), the number of the host parasitized per female wasp decreasing with increased wasp density. When the number of parasites was constant and the host density was varied, the number of parasitized host increased with the increase in host density, gradually approaching the theoretical limit, while the percentage of parasitism decreased. When the host density was constant and the number of waspa was varied, the percentage of parasitism and the number of parasitized host both increased with the increase in parasite density tracing a curve of logarithmic function.

马尼拉陡胸茧蜂对斜纹夜蛾幼虫不同密度的功能反应属于Holling第Ⅱ型,按Holling(1959)圆盘方程测定了雌蜂攻击力,其攻击(寄生)的理论上限为171头。陡胸茧蜂间存在相互干扰作用,其寄生效应随自身密度的增加按Watt(1959)模型下降。当蜂密度不变、奇主密度变动时,被寄生的奇主数随着寄主密度的增加而增加,逐渐趋向其寄生数量的理论上限,但寄生率随之而逐渐下降;当寄主密度不变、蜂密度变动时,被寄生的奇主数和寄生率随蜂密度的增加而呈对数函数曲线增长。

 
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