Testudo hermanni: Population traits

at T = 24 °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 - 0.578985 0.626154 0.813077 0.813077 1 1 scaled functional response
r 1/d 0 0 0.000532954 0.000178152 0.000788469 0.000278209 spec pop growth rate
t2 d NaN NaN 1300.58 3890.76 879.106 2491.46 population doubling time
a_b d 209.683 206.914 197.958 197.958 191.205 191.205 age at birth
t_p d 15581.4 10285.9 5430.84 5430.84 3911.77 3911.77 time since birth at puberty
S_b - 0.999978 0.999978 0.999981 0.999981 0.999983 0.999983 survival probability at birth
S_p - 0.999864 0.759765 0.999888 0.704761 0.999901 0.661156 survival probability at puberty
theta_0b - 0.0148091 0.0900631 0.100916 0.182038 0.140265 0.233307 frac of ind that is embryo
theta_bp - 0.014833 0.0785261 0.0909171 0.14764 0.120752 0.1801 fraction of individuals that is juvenile
theta_pi - 0.970358 0.831411 0.808166 0.670321 0.738983 0.586593 frac of ind that is adult
L_bi cm 5.77441 4.9816 4.58585 4.34878 4.47873 4.21891 mean structural length of post-natals
L2_bi cm^2 35.0082 28.34 24.2498 23.2477 23.6225 22.579 mean squared structural length of post-natals
L3_bi cm^3 218.82 175.753 144.063 147.275 143.664 149.956 mean cubed structural length of post-natals
Ww_bi g 270.548 220.685 191.889 196.167 202.321 211.182 mean wet weight of post-natals
L_pi cm 5.82919 5.24454 4.84862 4.81303 4.83633 4.81487 mean structural length of adults
L2_pi cm^2 35.4699 30.5597 26.4068 27.2591 26.6223 27.9126 mean squared structural length of adults
L3_pi cm^3 222.003 191.345 158.979 177.215 165.155 192.329 mean cubed structural length of adults
Ww_pi g 274.484 240.263 211.755 236.046 232.586 270.856 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.51617 0.451894 0.502106 0.481357 0.601563 0.574989 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 0.152914 0.0545071 0.1883 0.0725564 yield of living structure on food
Y_VX_d mol/mol 0.043095 0.079219 0.00399423 0.0980822 0.00189571 0.113034 yield of dead structure on food
Y_EX mol/mol 0 0 0.0507636 0.018095 0.0768817 0.0296243 yield of living reserve on food
Y_EX_d mol/mol 0.0101875 0.0202527 0.00132598 0.0325608 0.000774008 0.0461512 yield of dead reserve on food
Y_CX mol/mol 0.680341 0.642812 0.553822 0.558496 0.506004 0.511273 yield of CO2 on food
Y_HX mol/mol 0.723371 0.683468 0.58885 0.59382 0.538007 0.54361 yield of H2O on food
Y_OX mol/mol -0.863509 -0.815877 -0.702928 -0.708861 -0.642235 -0.648923 yield of O2 on food
Y_NX mol/mol 0.157002 0.148341 0.127805 0.128884 0.11677 0.117986 yield of N-waste on food
mu_TX J/mol 437688 414512 359160 362055 328993 332270 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