Mareca penelope: Population traits

at T = 40.2 °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_min f_max date: 2025/10/16
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.801321 0.801321 0.811289 0.811289 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00572461 0.00572461 0.00142941 0.00142941 spec pop growth rate
t2 d NaN NaN NaN NaN 121.082 121.082 484.918 484.918 population doubling time
a_b d 22.402 22.3772 22.3889 NaN 22.1888 22.1686 22.1888 22.1686 age at birth
t_p d 422.261 270.493 308.488 NaN 134.231 128.869 134.231 128.869 time since birth at puberty
S_b - 1 1 1 NaN 1 1 1 1 survival probability at birth
S_p - 1 1 0.464477 NaN 1 1 0.415757 0.411108 survival probability at puberty
theta_0b - 0.00327704 0.00324624 0.0165018 NaN 0.119276 0.119175 0.168804 0.17365 frac of ind that is embryo
theta_bp - 0.00327764 0.00324682 0.010929 NaN 0.105063 0.104985 0.102904 0.105299 fraction of individuals that is juvenile
theta_pi - 0.993445 0.993507 0.972569 NaN 0.775661 0.77584 0.728292 0.721051 frac of ind that is adult
L_bi cm 2.38112 2.43756 2.39838 NaN 2.49683 2.5417 2.63023 2.67556 mean structural length of post-natals
L2_bi cm^2 5.67592 5.94852 5.7706 NaN 6.52956 6.78005 7.25092 7.5266 mean squared structural length of post-natals
L3_bi cm^3 13.5392 14.5269 13.9102 NaN 17.6129 18.6767 20.5383 21.7885 mean cubed structural length of post-natals
Ww_bi g 239.448 262.695 248.898 NaN 384.359 416.842 448.201 486.296 mean wet weight of post-natals
L_pi cm 2.3846 2.44117 2.41073 NaN 2.64774 2.69772 2.81195 2.86931 mean structural length of adults
L2_pi cm^2 5.68877 5.96208 5.81626 NaN 7.15105 7.43246 8.01605 8.35565 mean squared structural length of adults
L3_pi cm^3 13.5759 14.5664 14.041 NaN 19.6241 20.8246 23.0804 24.594 mean cubed structural length of adults
Ww_pi g 240.097 263.408 251.238 NaN 428.249 464.781 503.675 548.912 mean wet weight of adults
R 1/d 0.00010134 0.00254297 0.00125971 NaN 0.0130263 0.0152745 0.0202067 0.0229596 mean reproduction rate of adults
J_X g/d 19.6697 21.1057 20.2466 NaN 28.2384 30.0204 31.358 33.326 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 NaN 0.00357057 0.00356146 0.000936212 0.000934549 yield of living structure on food
Y_VX_d mol/mol 0.000101956 0.000101126 0.000214914 NaN 2.5469e-07 2.48038e-07 0.00117101 0.0011833 yield of dead structure on food
Y_EX mol/mol 0 0 0 NaN 0.0743486 0.0759263 0.0194944 0.0199235 yield of living reserve on food
Y_EX_d mol/mol 0.00170119 0.00172756 0.00363058 NaN 5.30332e-06 5.28789e-06 0.0243835 0.0252267 yield of dead reserve on food
Y_CX mol/mol 0.722168 0.722147 0.720508 NaN 0.660319 0.659045 0.68627 0.685227 yield of CO2 on food
Y_HX mol/mol 0.768831 0.768809 0.767064 NaN 0.702986 0.701629 0.730613 0.729504 yield of H2O on food
Y_OX mol/mol -0.916598 -0.916571 -0.914491 NaN -0.838097 -0.83648 -0.871035 -0.869712 yield of O2 on food
Y_NX mol/mol 0.166654 0.166649 0.166271 NaN 0.152381 0.152087 0.15837 0.158129 yield of N-waste on food
mu_TX J/mol 463381 463367 462282 NaN 422384 421535 439585 438892 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