Pygoscelis antarcticus: Population traits

at T = 38.2 °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: 2023/10/03
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.878536 0.938787 0.969394 0.969394 1 1 scaled functional response
r 1/d 0 0 0.00138574 7.81753e-05 0.0017168 0.000139043 spec pop growth rate
t2 d NaN NaN 500.199 8866.58 403.744 4985.12 population doubling time
a_b d 30.708 30.5852 30.5287 30.5287 30.4756 30.4756 age at birth
t_p d 418.895 227.693 200.992 200.992 182.905 182.905 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.394803 1 0.389394 1 0.384369 survival probability at puberty
theta_0b - 0.00391805 0.03827 0.0415161 0.0537764 0.0510375 0.0683137 frac of ind that is embryo
theta_bp - 0.0039171 0.0234713 0.0397868 0.0326958 0.0484241 0.0412117 fraction of individuals that is juvenile
theta_pi - 0.992165 0.938259 0.918697 0.913528 0.900538 0.890475 frac of ind that is adult
L_bi cm 5.52356 5.78661 5.61733 5.90131 5.66006 6.01242 mean structural length of post-natals
L2_bi cm^2 30.5889 33.9142 32.4775 35.4831 33.217 37.0564 mean squared structural length of post-natals
L3_bi cm^3 169.645 199.963 190.907 215.224 199.056 231.026 mean cubed structural length of post-natals
Ww_bi g 2353.74 2950.95 2902.93 3272.7 3116.13 3616.61 mean wet weight of post-natals
L_pi cm 5.53584 5.87256 5.75477 6.02808 5.83248 6.18112 mean structural length of adults
L2_pi cm^2 30.6864 34.6218 33.6209 36.5501 34.6737 38.507 mean squared structural length of adults
L3_pi cm^3 170.256 204.622 198.51 222.43 208.923 241.069 mean cubed structural length of adults
Ww_pi g 2362.23 3019.71 3018.54 3382.28 3270.59 3773.82 mean wet weight of adults
R 1/d 0.000113693 0.00243805 0.0020086 0.00355911 0.0026449 0.00468107 mean reproduction rate of adults
J_X g/d 102.073 120.931 119.583 130.65 126.168 140.751 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 0.00221225 0.000128781 0.00270861 0.000228224 yield of living structure on food
Y_VX_d mol/mol 0.000216489 0.000524693 5.67126e-06 0.000589814 3.6053e-06 0.000663022 yield of dead structure on food
Y_EX mol/mol 0 0 0.0314273 0.00182946 0.0396934 0.00334451 yield of living reserve on food
Y_EX_d mol/mol 0.00278719 0.00721846 8.0566e-05 0.00837891 5.2834e-05 0.00971627 yield of dead reserve on food
Y_CX mol/mol 0.721192 0.717341 0.696231 0.714755 0.689135 0.712297 yield of CO2 on food
Y_HX mol/mol 0.767792 0.763693 0.741218 0.760939 0.733664 0.758322 yield of H2O on food
Y_OX mol/mol -0.915359 -0.910472 -0.883677 -0.907189 -0.874672 -0.904069 yield of O2 on food
Y_NX mol/mol 0.166429 0.16554 0.160669 0.164943 0.159031 0.164376 yield of N-waste on food
mu_TX J/mol 462737 460189 446221 458477 441523 456849 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