Eretmochelys imbricata: Population traits

at T = 18 °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: 2025/06/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.919893 0.938458 0.969229 0.969229 1 1 scaled functional response
r 1/d 0 0 0.00048026 4.64297e-05 0.000579668 7.39763e-05 spec pop growth rate
t2 d NaN NaN 1443.28 14929 1195.77 9369.86 population doubling time
a_b d 120.132 120.01 119.818 119.818 119.636 119.636 age at birth
t_p d 22618.6 10191.1 8001.26 8001.26 6989.05 6989.05 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.309693 1 0.30785 1 0.306117 survival probability at puberty
theta_0b - 0.00360969 0.321275 0.055932 0.381285 0.067 0.403583 frac of ind that is embryo
theta_bp - 0.0036106 0.178018 0.052817 0.209606 0.0625258 0.220605 fraction of individuals that is juvenile
theta_pi - 0.99278 0.500707 0.891251 0.409109 0.870474 0.375812 frac of ind that is adult
L_bi cm 22.6541 11.9826 12.1746 8.76937 11.2334 7.61206 mean structural length of post-natals
L2_bi cm^2 530.14 244.046 193.146 156.272 168.659 125.601 mean squared structural length of post-natals
L3_bi cm^3 12564.2 5633.5 3502.38 3475.59 2949.56 2741.51 mean cubed structural length of post-natals
Ww_bi g 78225.9 35668.8 22787.7 22613.5 19706.5 18316.5 mean wet weight of post-natals
L_pi cm 22.7296 15.6001 12.7828 12.3351 11.9028 11.0168 mean structural length of adults
L2_pi cm^2 532.054 329.617 204.37 234.611 180.503 197.346 mean squared structural length of adults
L3_pi cm^3 12609.9 7634.12 3709.48 5252.99 3160.88 4346.99 mean cubed structural length of adults
Ww_pi g 78510.2 48335.8 24135.3 34177.9 21118.4 29043 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 131.629 61.8175 50.5286 40.8821 45.5233 33.9015 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 0.033289 0.00394721 0.037558 0.00598222 yield of living structure on food
Y_VX_d mol/mol 0.00331429 0.00853697 5.45449e-05 0.0115843 3.5681e-05 0.0139315 yield of dead structure on food
Y_EX mol/mol 0 0 0.183302 0.0217348 0.213374 0.0339861 yield of living reserve on food
Y_EX_d mol/mol 0.0173207 0.0455153 0.000300344 0.0637871 0.00020271 0.0791476 yield of dead reserve on food
Y_CX mol/mol 0.706867 0.679715 0.547365 0.641527 0.519557 0.615532 yield of CO2 on food
Y_HX mol/mol 0.751575 0.722706 0.581984 0.682102 0.552418 0.654463 yield of H2O on food
Y_OX mol/mol -0.897177 -0.862716 -0.694732 -0.814246 -0.659438 -0.781252 yield of O2 on food
Y_NX mol/mol 0.163123 0.156857 0.126315 0.148045 0.119898 0.142046 yield of N-waste on food
mu_TX J/mol 453356 435543 348683 410473 330385 393388 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