Linepithema humile: Population traits

at T = 28 °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: 2025/05/23
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 1 1 1 1 1 1 scaled functional response
r 1/d 0 0 0.0233682 NaN 0.0233682 NaN spec pop growth rate
t2 d NaN NaN 29.662 NaN 29.662 NaN population doubling time
a_b d 1.69952 1.69952 1.69952 NaN 1.69952 NaN age at birth
t_j d 45.6078 45.6078 45.6078 NaN 45.6078 NaN time since birth at metam
t_e d 46.9502 46.9502 46.9502 NaN 46.9502 NaN time since birth at emergence
S_b - 1 1 1 NaN 1 NaN survival probability at birth
S_j - 0.999994 0.00351341 0.999994 NaN 0.999994 NaN survival probability at metam
S_e - 0.999994 0.00351335 0.999994 NaN 0.999994 NaN survival probability at emergence
theta_0b - 0.00285615 0.145062 0.0387333 NaN 0.0387333 NaN frac of ind that is embryo
theta_bj - 0.07713 0.690767 0.630602 NaN 0.630602 NaN frac of ind between b and j
theta_je - 0.00227025 0.000405108 0.0102334 NaN 0.0102334 NaN frac of ind that is pupa
theta_ei - 0.917744 0.163765 0.320432 NaN 0.320432 NaN frac of ind that is imago
L_bi cm 0.111222 0.0478773 0.0757816 NaN 0.0757816 NaN mean structural length of post-natals
L2_bi cm^2 0.0126491 0.00351751 0.00725056 NaN 0.00725056 NaN mean squared structural length of post-natals
L3_bi cm^3 0.00145057 0.000340378 0.000778871 NaN 0.000778871 NaN mean cubed structural length of post-natals
Ww_bi g 0.00155572 0.000365051 0.000835331 NaN 0.000835331 NaN mean wet weight of post-natals
L_ei cm 0.115069 0.115069 0.115069 NaN 0.115069 NaN mean structural length of imagos
L2_ei cm^2 0.0132408 0.0132408 0.0132408 NaN 0.0132408 NaN mean squared structural length of imagos
L3_ei cm^3 0.0015236 0.0015236 0.0015236 NaN 0.0015236 NaN mean cubed structural length of imagos
Ww_ei g 0.00163405 0.00163405 0.00163405 NaN 0.00163405 NaN mean wet weight of imagos
R 1/d 1.54549e-05 1.54549e-05 1.54549e-05 NaN 1.54549e-05 NaN mean reproduction rate of adults
J_X g/d 0.000168229 1.90093e-05 0.000115331 NaN 0.000115331 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 0.308709 NaN 0.308709 NaN yield of living structure on food
Y_VX_d mol/mol 3.69263e-07 0.37688 3.69263e-07 NaN 3.69263e-07 NaN yield of dead structure on food
Y_EX mol/mol 0 0 0.0223781 NaN 0.0223781 NaN yield of living reserve on food
Y_EX_d mol/mol 2.67676e-08 0.0273197 2.67676e-08 NaN 2.67676e-08 NaN yield of dead reserve on food
Y_CX mol/mol 0.723632 0.39522 0.454624 NaN 0.454624 NaN yield of CO2 on food
Y_HX mol/mol 0.775833 0.42373 0.487419 NaN 0.487419 NaN yield of H2O on food
Y_OX mol/mol -0.918457 -0.501626 -0.577023 NaN -0.577023 NaN yield of O2 on food
Y_NX mol/mol 0.166992 0.0912047 0.104913 NaN 0.104913 NaN yield of N-waste on food
mu_TX J/mol 464351 264583 300718 NaN 300718 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