Loxodonta africana: Population traits

at T = 36.2 °C with background hazards for embryo, baby, juv, adult: 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 stx f_min f_max date: 2023/04/11
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.816067 0.816067 0.938161 0.938161 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000178624 0.000178624 1.15444e-05 1.15444e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 3880.48 3880.48 60041.7 60041.7 population doubling time
a_b d 742.274 742.274 742.274 742.274 742.274 742.274 742.274 742.274 age at birth
t_x d 9160.92 5023.83 4616.08 3738.88 4030.94 3413.22 4030.94 3413.22 time since birth at weaning
t_p d 1265.79 1158.36 1132.21 1055.59 1084.7 1018.02 1084.7 1018.02 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_x - 0.999994 0.999995 0.427113 0.406679 0.999994 0.999995 0.414705 0.395813 survival probability at weaning
S_p - 0.996778 0.999621 0.125035 0.1226 0.999787 0.999886 0.123549 0.121327 survival probability at puberty
theta_0b - 0.0192491 0.0181751 0.150352 0.165608 0.125077 0.124894 0.190468 0.208323 frac of ind that is embryo
theta_bx - 0.019247 0.0181733 0.0964151 0.103703 0.109535 0.109375 0.11945 0.127745 fraction of individuals that is baby
theta_xp - 0.218116 0.104815 0.158361 0.135763 0.343193 0.292689 0.166602 0.147953 fraction of individuals that is juvenile
theta_pi - 0.743388 0.858837 0.594872 0.594925 0.422194 0.473042 0.52348 0.515979 frac of ind that is adult
L_bi cm 60.4462 67.0641 62.3485 67.6735 58.2834 62.6823 62.909 67.6768 mean structural length of post-natals
L2_bi cm^2 3700.65 4564.44 4135.42 4947.47 3666.65 4294.65 4306.57 5085.07 mean squared structural length of post-natals
L3_bi cm^3 228286 313286 283469 376099 242542 311556 308518 403197 mean cubed structural length of post-natals
Ww_bi g 1.83192e+06 2.76495e+06 2.57267e+06 3.75965e+06 2.33033e+06 3.2992e+06 2.96422e+06 4.26963e+06 mean wet weight of post-natals
L_pi cm 63.0056 69.7141 71.5606 78.9151 72.477 77.9684 75.4533 82.8918 mean structural length of adults
L2_pi cm^2 3969.74 4861.84 5124.77 6241.44 5270.01 6122.8 5703.68 6900.46 mean squared structural length of adults
L3_pi cm^3 250120 339181 367265 494607 384392 484062 431874 576568 mean cubed structural length of adults
Ww_pi g 2.00713e+06 2.99348e+06 3.33316e+06 4.94431e+06 3.69321e+06 5.12595e+06 4.14942e+06 6.10553e+06 mean wet weight of adults
R 1/d 3.48564e-05 0.000272148 0.000340327 0.000624269 0.000373184 0.000578923 0.000487893 0.000786145 mean reproduction rate of adults
J_X g/d 245501 337331 315389 420342 298070 388930 350091 460511 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.984375 0.984375 0.984375 0.984375 0.984375 0.984375 0.984375 0.984375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.000145347 0.000143089 1.01735e-05 1.01077e-05 yield of living structure on food
Y_VX_d mol/mol 2.70216e-05 2.56405e-05 6.50045e-05 6.2547e-05 2.19013e-06 1.82519e-06 7.13649e-05 6.8732e-05 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.00125114 0.00137214 8.75733e-05 9.69267e-05 yield of living reserve on food
Y_EX_d mol/mol 0.000189818 0.000200653 0.000524953 0.0005627 1.88525e-05 1.75026e-05 0.000614305 0.000659102 yield of dead reserve on food
Y_CX mol/mol 0.0142525 0.0142438 0.0139074 0.0138748 0.0131419 0.0130337 0.0137285 0.0136809 yield of CO2 on food
Y_HX mol/mol 0.0121553 0.0121479 0.011861 0.0118331 0.0112081 0.0111158 0.0117084 0.0116678 yield of H2O on food
Y_OX mol/mol -0.0167564 -0.0167461 -0.0163506 -0.0163122 -0.0154506 -0.0153234 -0.0161402 -0.0160843 yield of O2 on food
Y_NX mol/mol 0.00115561 0.0011549 0.00112763 0.00112498 0.00106556 0.00105678 0.00111312 0.00110926 yield of N-waste on food
mu_TX J/mol 52241.1 52235.9 52041.2 52022 51597.7 51534.3 51937.4 51909.4 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer