Tyrannosaurus rex: Population traits

at T = 37 °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 - 0.795392 0.801241 0.90062 0.90062 1 1 scaled functional response
r 1/d 0 0 0.000611097 0.000186879 0.000780197 0.000250107 spec pop growth rate
t2 d NaN NaN 1134.27 3709.06 888.426 2771.41 population doubling time
a_b d 277.01 276.94 275.889 275.889 275.041 275.041 age at birth
t_p d 27751.5 16252.6 7911.06 7911.06 6426.58 6426.58 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 0.999997 0.302355 0.999997 0.296446 0.999998 0.291733 survival probability at puberty
theta_0b - 0.0096212 0.331505 0.155181 0.472441 0.193133 0.496303 frac of ind that is embryo
theta_bp - 0.00962233 0.180818 0.131118 0.243767 0.15585 0.250301 fraction of individuals that is juvenile
theta_pi - 0.980756 0.487677 0.7137 0.283792 0.651016 0.253395 frac of ind that is adult
L_bi cm 49.4185 28.7964 22.6082 15.3114 20.4015 13.9809 mean structural length of post-natals
L2_bi cm^2 2554.96 1249.87 676.477 407.821 562.571 337.325 mean squared structural length of post-natals
L3_bi cm^3 134657 62175.3 24167 15754.8 19039.3 12391.9 mean cubed structural length of post-natals
Ww_bi g 2.6647e+06 1.23897e+06 538310 350933 468789 305115 mean wet weight of post-natals
L_pi cm 49.8347 37.0272 25.478 22.7831 23.6075 21.2387 mean structural length of adults
L2_pi cm^2 2579.53 1696.66 791.525 719.391 685.131 625.675 mean squared structural length of adults
L3_pi cm^3 135974 85112 28538.7 29015.5 23507.3 24315.7 mean cubed structural length of adults
Ww_pi g 2.69077e+06 1.69603e+06 635687 646308 578801 598706 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 3520.43 1734.83 1055.42 636.272 974.559 584.359 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 0.0139929 0.00462735 0.0152422 0.00530375 yield of living structure on food
Y_VX_d mol/mol 0.00166192 0.00394823 2.08425e-05 0.00840687 1.116e-05 0.00934012 yield of dead structure on food
Y_EX mol/mol 0 0 0.297693 0.098445 0.360053 0.125286 yield of living reserve on food
Y_EX_d mol/mol 0.0312257 0.0747283 0.000443417 0.178853 0.000263622 0.220634 yield of dead reserve on food
Y_CX mol/mol 0.696912 0.659708 0.470011 0.487738 0.418482 0.430675 yield of CO2 on food
Y_HX mol/mol 0.74099 0.701433 0.499738 0.518586 0.44495 0.457914 yield of H2O on food
Y_OX mol/mol -0.884542 -0.837322 -0.596552 -0.619052 -0.53115 -0.546625 yield of O2 on food
Y_NX mol/mol 0.160826 0.15224 0.108464 0.112555 0.0965727 0.0993864 yield of N-waste on food
mu_TX J/mol 446647 421996 296225 307976 261986 270072 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