Testudo graeca: 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 - 0.791808 0.795854 0.897927 0.897927 1 1 scaled functional response
r 1/d 0 0 0.000548039 0.000186479 0.000792044 0.000278416 spec pop growth rate
t2 d NaN NaN 1264.78 3717.02 875.138 2489.61 population doubling time
a_b d 114.043 113.945 111.657 111.657 109.67 109.67 age at birth
t_p d 20587.5 13713.6 5919.9 5919.9 4441.04 4441.04 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.702976 1 0.677355 1 0.654638 survival probability at puberty
theta_0b - 0.00231502 0.0404282 0.0593028 0.162026 0.0831237 0.199372 frac of ind that is embryo
theta_bp - 0.00231795 0.0338865 0.0558449 0.130624 0.0762851 0.156521 fraction of individuals that is juvenile
theta_pi - 0.995367 0.925685 0.884852 0.70735 0.840591 0.644107 frac of ind that is adult
L_bi cm 9.30229 8.39934 6.07869 5.45154 5.69748 5.03432 mean structural length of post-natals
L2_bi cm^2 87.6812 76.1541 43.0487 38.449 38.7149 33.7408 mean squared structural length of post-natals
L3_bi cm^3 831.819 711.973 338.186 320.58 299.229 279.304 mean cubed structural length of post-natals
Ww_bi g 1097.79 940.785 460.811 436.821 420.062 392.091 mean wet weight of post-natals
L_pi cm 9.31873 8.62502 6.31917 6.04174 6.00671 5.70481 mean structural length of adults
L2_pi cm^2 87.8736 78.7586 45.4399 44.6068 41.7507 40.6774 mean squared structural length of adults
L3_pi cm^3 833.729 737.624 358.786 377.641 325.283 344.281 mean cubed structural length of adults
Ww_pi g 1100.31 974.68 488.88 514.572 456.637 483.308 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 3.01768 2.63434 1.68015 1.50063 1.68277 1.46657 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 0.110311 0.0398377 0.140841 0.0530236 yield of living structure on food
Y_VX_d mol/mol 0.00603372 0.0146927 3.78069e-05 0.060649 1.77755e-05 0.0800061 yield of dead structure on food
Y_EX mol/mol 0 0 0.0399984 0.014445 0.0568737 0.0214117 yield of living reserve on food
Y_EX_d mol/mol 0.00192925 0.00472192 1.37086e-05 0.0219911 7.17801e-06 0.0323077 yield of dead reserve on food
Y_CX mol/mol 0.717163 0.707858 0.601465 0.612383 0.562969 0.571899 yield of CO2 on food
Y_HX mol/mol 0.762522 0.752629 0.639506 0.651115 0.598576 0.608071 yield of H2O on food
Y_OX mol/mol -0.910245 -0.898436 -0.763397 -0.777255 -0.714538 -0.725872 yield of O2 on food
Y_NX mol/mol 0.165499 0.163352 0.1388 0.141319 0.129916 0.131977 yield of N-waste on food
mu_TX J/mol 460346 454585 388546 395320 364446 369999 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