Varanus bengalensis: Population traits

at T = 25 °C with background hazards for embryo, juv, adult: 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 std f_minf f_max date: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.282333 0.29441 0.647205 0.647205 1 1 scaled functional response
r 1/d 0 0 0.00107908 0.00056453 0.00193932 0.000949564 spec pop growth rate
t2 d NaN NaN 642.352 1227.83 357.418 729.963 population doubling time
a_b d 86.5878 86.0762 76.5924 76.5924 71.511 71.511 age at birth
t_p d 7407.9 6205.28 1323.44 1323.44 770.085 770.085 time since birth at puberty
S_b - 0.999992 0.999992 0.999994 0.999994 0.999995 0.999995 survival probability at birth
S_p - 0.999948 0.980744 0.999963 0.918934 0.999969 0.871104 survival probability at puberty
theta_0b - 0.00864916 0.013521 0.0792488 0.090158 0.1292 0.14426 frac of ind that is embryo
theta_bp - 0.0087386 0.0135241 0.0733437 0.0832253 0.112883 0.126355 fraction of individuals that is juvenile
theta_pi - 0.982612 0.972955 0.847407 0.826617 0.757917 0.729385 frac of ind that is adult
L_bi cm 4.8033 4.87429 5.50304 5.5685 5.65202 5.72194 mean structural length of post-natals
L2_bi cm^2 23.211 23.9744 32.041 33.3108 34.4074 36.1049 mean squared structural length of post-natals
L3_bi cm^3 112.786 118.906 198.101 215.42 227.63 255.627 mean cubed structural length of post-natals
Ww_bi g 117.676 124.282 217.791 236.832 262.589 294.885 mean wet weight of post-natals
L_pi cm 4.81146 4.88799 5.63662 5.73055 5.89566 6.0177 mean structural length of adults
L2_pi cm^2 23.2832 24.0975 33.457 35.0863 37.1287 39.5663 mean squared structural length of adults
L3_pi cm^3 113.267 119.741 209.871 230.858 251.873 288.687 mean cubed structural length of adults
Ww_pi g 118.178 125.155 230.731 253.805 290.556 333.023 mean wet weight of adults
R 1/d 0.000132977 0.000211309 0.00233123 0.00248878 0.00444837 0.00480291 mean reproduction rate of adults
J_X g/d 0.407007 0.438376 1.28794 1.33898 2.13696 2.24239 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0.165976 0.090824 0.206577 0.108248 yield of living structure on food
Y_VX_d mol/mol 0.0332968 0.0448904 0.00133258 0.0771232 0.000423424 0.0993115 yield of dead structure on food
Y_EX mol/mol 0 0 0.0164974 0.0090276 0.0317257 0.0166245 yield of living reserve on food
Y_EX_d mol/mol 0.00144376 0.00202972 0.000132454 0.00766579 6.50288e-05 0.0152521 yield of dead reserve on food
Y_CX mol/mol 0.695406 0.68551 0.574183 0.573612 0.529615 0.529091 yield of CO2 on food
Y_HX mol/mol 0.739389 0.728867 0.610499 0.609892 0.563112 0.562555 yield of H2O on food
Y_OX mol/mol -0.882631 -0.870071 -0.728771 -0.728046 -0.672204 -0.671539 yield of O2 on food
Y_NX mol/mol 0.160478 0.158195 0.132504 0.132372 0.122219 0.122098 yield of N-waste on food
mu_TX J/mol 447226 441219 373233 372885 345551 345230 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: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer