Helicoverpa armigera: Population traits

at T = 25 °C with background hazards for embryo, larva, pupa, imago: 0 0, 0, 0 1/d

Ln survival probability as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
Ln survivor function of the stable age distribution as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
model hex f_minf f_max date: 2024/07/17
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 1 1 1 1 1 1 scaled functional response
r 1/d 0 0 0.218393 NaN 0.218393 NaN spec pop growth rate
t2 d NaN NaN 3.17386 NaN 3.17386 NaN population doubling time
a_b d 2.62621 2.62621 2.62621 NaN 2.62621 NaN age at birth
t_j d 16.0458 16.0458 16.0458 NaN 16.0458 NaN time since birth at metam
t_e d 16.804 16.804 16.804 NaN 16.804 NaN time since birth at emergence
S_b - 0.979009 0.979009 0.979009 NaN 0.979009 NaN survival probability at birth
S_j - 0.723056 0.000139035 0.723056 NaN 0.723056 NaN survival probability at metam
S_e - 0.712775 0.000137064 0.712775 NaN 0.712775 NaN survival probability at emergence
theta_0b - 0.134226 0.594998 0.46251 NaN 0.46251 NaN frac of ind that is embryo
theta_bj - 0.698202 0.40486 0.529652 NaN 0.529652 NaN frac of ind between b and j
theta_je - 0.0280437 2.39046e-05 0.00198066 NaN 0.00198066 NaN frac of ind that is pupa
theta_ei - 0.139528 0.000118934 0.00585711 NaN 0.00585711 NaN frac of ind that is imago
L_bi cm 0.0874615 0.0228504 0.0399441 NaN 0.0399441 NaN mean structural length of post-natals
L2_bi cm^2 0.0114428 0.000650679 0.00294668 NaN 0.00294668 NaN mean squared structural length of post-natals
L3_bi cm^3 0.00189053 2.90002e-05 0.000369436 NaN 0.000369436 NaN mean cubed structural length of post-natals
Ww_bi g 0.00352265 5.40366e-05 0.000688377 NaN 0.000688377 NaN mean wet weight of post-natals
L_ei cm 0.0961596 0.0961596 0.0961596 NaN 0.0961596 NaN mean structural length of imagos
L2_ei cm^2 0.00924667 0.00924667 0.00924667 NaN 0.00924667 NaN mean squared structural length of imagos
L3_ei cm^3 0.000889157 0.000889157 0.000889157 NaN 0.000889157 NaN mean cubed structural length of imagos
Ww_ei g 0.00165678 0.00165678 0.00165678 NaN 0.00165678 NaN mean wet weight of imagos
R 1/d 0.160491 0.160491 0.160491 NaN 0.160491 NaN mean reproduction rate of adults
J_X g/d 0.00328548 4.65485e-05 0.000571838 NaN 0.000571838 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 0 0.339581 NaN 0.339581 NaN yield of living structure on food
Y_VX_d mol/mol 0.0115736 0.338355 0.0115736 NaN 0.0115736 NaN yield of dead structure on food
Y_EX mol/mol 0 0 0.293166 NaN 0.293166 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00999168 0.292108 0.00999168 NaN 0.00999168 NaN yield of dead reserve on food
Y_CX mol/mol 0.706111 0.211381 0.192004 NaN 0.192004 NaN yield of CO2 on food
Y_HX mol/mol 0.757048 0.226629 0.205854 NaN 0.205854 NaN yield of H2O on food
Y_OX mol/mol -0.896218 -0.268291 -0.243697 NaN -0.243697 NaN yield of O2 on food
Y_NX mol/mol 0.162949 0.0487802 0.0443086 NaN 0.0443086 NaN yield of N-waste on food
mu_TX J/mol 453266 140282 128024 NaN 128024 NaN yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female are the same.
  • Buffer handling rule: imago deposits eggs at constant rate during lifetime as imago
  • Weights of adults do not include reproduction buffer