Volume 14 Issue 3
May  1993
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KUANG Rong-ping, Sandy M.Smith. Application of Wyatt-White Method to Calculating Intrinsic Rates of Increase For Hymenopterous Parasitoids. Zoological Research, 1993, 14(3): 208-214.
Citation: KUANG Rong-ping, Sandy M.Smith. Application of Wyatt-White Method to Calculating Intrinsic Rates of Increase For Hymenopterous Parasitoids. Zoological Research, 1993, 14(3): 208-214.

Application of Wyatt-White Method to Calculating Intrinsic Rates of Increase For Hymenopterous Parasitoids

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 1993-08-22
  • Th method developed by Wyatt and White (1977) was applied to calculate the intrinsic rates of increase for parasitoids based on 23 fecundity data sets from the literature.The studies showed that there existed the linear relationship between the accurate values of r[m] and ln (M[d])/d or ln (M[d/2])/d,that is,1) r[m]=0.845 ln (M[d])/d or 2)r[m]=0.880 ln (M[d/2])/d.Where d is the prereproductive time,M[d] is the number of female offspring produced per original femlae from the first to the dthday of reproduction,and M[d/2] is the number of female offspring produced per original female from the first to the (d/2) [th] day of reproduction.These equations can provide the accurate estimates of r[m] for parasitoids in this study.The approach is advantageous because it does not require the construction of detailed fecundity tables for estimating parasitoid rates of increase.Of course,whether these equations are appropriate for the other taxa will need to be further studied.
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Application of Wyatt-White Method to Calculating Intrinsic Rates of Increase For Hymenopterous Parasitoids

Abstract: Th method developed by Wyatt and White (1977) was applied to calculate the intrinsic rates of increase for parasitoids based on 23 fecundity data sets from the literature.The studies showed that there existed the linear relationship between the accurate values of r[m] and ln (M[d])/d or ln (M[d/2])/d,that is,1) r[m]=0.845 ln (M[d])/d or 2)r[m]=0.880 ln (M[d/2])/d.Where d is the prereproductive time,M[d] is the number of female offspring produced per original femlae from the first to the dthday of reproduction,and M[d/2] is the number of female offspring produced per original female from the first to the (d/2) [th] day of reproduction.These equations can provide the accurate estimates of r[m] for parasitoids in this study.The approach is advantageous because it does not require the construction of detailed fecundity tables for estimating parasitoid rates of increase.Of course,whether these equations are appropriate for the other taxa will need to be further studied.

KUANG Rong-ping, Sandy M.Smith. Application of Wyatt-White Method to Calculating Intrinsic Rates of Increase For Hymenopterous Parasitoids. Zoological Research, 1993, 14(3): 208-214.
Citation: KUANG Rong-ping, Sandy M.Smith. Application of Wyatt-White Method to Calculating Intrinsic Rates of Increase For Hymenopterous Parasitoids. Zoological Research, 1993, 14(3): 208-214.

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