Phoebastria immutabilis: Population traits

at T = 39.4 °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_min f_max date: 2023/10/02
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.89168 0.89168 0.90334 0.90334 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00101367 0.00101367 0.000215002 0.000215002 spec pop growth rate
t2 d NaN NaN NaN NaN 683.798 683.798 3223.91 3223.91 population doubling time
a_b d 48.1793 47.9991 48.1278 47.95 47.7477 47.5876 47.7477 47.5876 age at birth
t_p d 523.15 266.887 368.868 246.755 195.134 170.552 195.134 170.552 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.47578 0.462722 1 1 0.448217 0.436991 survival probability at puberty
theta_0b - 0.00168037 0.00163377 0.00814195 0.00864807 0.0472681 0.0471131 0.0553795 0.0597062 frac of ind that is embryo
theta_bp - 0.00167971 0.00163313 0.00545557 0.00571618 0.0450175 0.0448772 0.0356979 0.03802 fraction of individuals that is juvenile
theta_pi - 0.99664 0.996733 0.986402 0.985636 0.907714 0.90801 0.908923 0.902274 frac of ind that is adult
L_bi cm 4.91973 5.15198 4.97192 5.20486 5.1928 5.41357 5.34584 5.57641 mean structural length of post-natals
L2_bi cm^2 24.2163 26.558 24.7569 27.1373 27.4283 29.8638 28.9299 31.5426 mean squared structural length of post-natals
L3_bi cm^3 119.239 136.953 123.382 141.63 146.47 166.714 157.658 179.84 mean cubed structural length of post-natals
Ww_bi g 1715.06 2056.58 1796.24 2152.77 2344.87 2787.36 2523.98 3006.83 mean wet weight of post-natals
L_pi cm 4.92329 5.15578 4.98421 5.21898 5.30818 5.53825 5.44604 5.69281 mean structural length of adults
L2_pi cm^2 24.2437 26.5882 24.8515 27.2496 28.3759 30.9211 29.7552 32.5333 mean squared structural length of adults
L3_pi cm^3 119.401 137.139 123.945 142.323 152.522 173.711 162.958 186.439 mean cubed structural length of adults
Ww_pi g 1717.39 2059.37 1804.44 2163.31 2441.75 2904.35 2608.83 3117.15 mean wet weight of adults
R 1/d 5.0542e-05 0.00106327 0.000315991 0.00134811 0.00187077 0.00293326 0.00242905 0.00359312 mean reproduction rate of adults
J_X g/d 107.316 123.263 111.146 127.599 136.316 155.444 143.779 164.182 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 0.00108918 0.00108716 0.000235757 0.000235507 yield of living structure on food
Y_VX_d mol/mol 3.89735e-05 3.80396e-05 8.22217e-05 8.17461e-05 8.13405e-08 7.69539e-08 0.000281507 0.000289291 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0163477 0.0170896 0.00353852 0.00370204 yield of living reserve on food
Y_EX_d mol/mol 0.000521597 0.000533191 0.00111479 0.0011608 1.22085e-06 1.20967e-06 0.0042252 0.0045475 yield of dead reserve on food
Y_CX mol/mol 0.723177 0.723169 0.72266 0.722623 0.709464 0.708863 0.716905 0.716504 yield of CO2 on food
Y_HX mol/mol 0.769906 0.769897 0.769355 0.769316 0.755307 0.754667 0.763228 0.762801 yield of H2O on food
Y_OX mol/mol -0.917879 -0.917868 -0.917223 -0.917176 -0.900474 -0.899711 -0.909917 -0.909408 yield of O2 on food
Y_NX mol/mol 0.166887 0.166885 0.166768 0.166759 0.163723 0.163584 0.16544 0.165347 yield of N-waste on food
mu_TX J/mol 464050 464044 463707 463683 454974 454574 459898 459631 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