Delphinapterus leucas: Population traits

at T = 35.5 °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: 2025/02/12
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.825015 0.825015 0.861708 0.861708 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000338384 0.000338384 8.59832e-05 8.59832e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 2048.4 2048.4 8061.43 8061.43 population doubling time
a_b d 411.397 411.397 411.397 411.397 411.397 411.397 411.397 411.397 age at birth
t_x d 4538.75 2299.18 2873.12 1991.85 1660.82 1437.77 1660.82 1437.77 time since birth at weaning
t_p d 936.973 731.526 859.375 687.856 680.177 577.387 680.177 577.387 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 0.999999 0.999999 0.55783 0.513226 0.999999 0.999999 0.510789 0.473265 survival probability at weaning
S_p - 0.999633 0.999965 0.23109 0.212262 0.999983 0.999991 0.230209 0.211548 survival probability at puberty
theta_0b - 0.0140264 0.0128212 0.0622255 0.0727078 0.130195 0.130127 0.17274 0.199754 frac of ind that is embryo
theta_bx - 0.0140226 0.0128173 0.0457212 0.0512173 0.113247 0.113184 0.117409 0.130716 fraction of individuals that is baby
theta_xp - 0.140669 0.0588142 0.116797 0.0849326 0.261406 0.222337 0.153578 0.137731 fraction of individuals that is juvenile
theta_pi - 0.831282 0.915547 0.775256 0.791142 0.495152 0.534351 0.556272 0.531799 frac of ind that is adult
L_bi cm 47.0518 53.9879 47.7524 54.1968 46.9888 51.9214 49.3564 54.1884 mean structural length of post-natals
L2_bi cm^2 2225.97 2934.96 2316.85 3006.39 2318.39 2870.51 2569.03 3165.92 mean squared structural length of post-natals
L3_bi cm^3 105691 160247 113537 169027 118501 165801 138369 193671 mean cubed structural length of post-natals
Ww_bi g 441735 746587 490583 814998 575189 901135 671624 1.05261e+06 mean wet weight of post-natals
L_pi cm 48.0688 55.0898 50.0946 57.3543 54.8948 61.1233 56.6906 64.1019 mean structural length of adults
L2_pi cm^2 2310.61 3035.57 2509.64 3291.28 3023.41 3763.05 3220.83 4130.17 mean squared structural length of adults
L3_pi cm^3 111069 167301 125737 188962 167042 233225 183352 267303 mean cubed structural length of adults
Ww_pi g 464212 779452 543295 911119 810801 1.26758e+06 889964 1.4528e+06 mean wet weight of adults
R 1/d 4.09387e-05 0.000456842 0.00019487 0.000655351 0.000595515 0.00101875 0.000741143 0.00130024 mean reproduction rate of adults
J_X g/d 1545.12 2344.49 1679.74 2508.36 1950.61 2779.35 2161.49 3065.37 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0205571 0.0201862 0.00550427 0.00543244 yield of living structure on food
Y_VX_d mol/mol 0.00248919 0.00228248 0.00526723 0.00507009 6.32766e-05 4.44937e-05 0.00870533 0.00879518 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0792243 0.0895265 0.0212127 0.024093 yield of living reserve on food
Y_EX_d mol/mol 0.00791437 0.00835151 0.017492 0.0193764 0.000243859 0.000197331 0.0335491 0.0390069 yield of dead reserve on food
Y_CX mol/mol 0.814205 0.813992 0.802776 0.801215 0.731246 0.72212 0.76003 0.7523 yield of CO2 on food
Y_HX mol/mol 0.694397 0.694215 0.68465 0.683319 0.623645 0.615862 0.648193 0.641601 yield of H2O on food
Y_OX mol/mol -0.957241 -0.95699 -0.943804 -0.941969 -0.859708 -0.848979 -0.893548 -0.884461 yield of O2 on food
Y_NX mol/mol 0.0660166 0.0659993 0.0650899 0.0649634 0.0592902 0.0585503 0.061624 0.0609973 yield of N-waste on food
mu_TX J/mol 458848 458714 452305 451382 411249 405893 427758 423240 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