Larus argentatus: Population traits

at T = 40.9 °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 - 0.93215 0.93215 0.9365 0.9365 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00271094 0.00271094 0.000586889 0.000586889 spec pop growth rate
t2 d NaN NaN NaN NaN 255.685 255.685 1181.05 1181.05 population doubling time
a_b d 18.739 18.7069 18.732 18.7 18.6365 18.6064 18.6365 18.6064 age at birth
t_p d 289.494 154.499 213.688 146.716 108.592 98.8546 108.592 98.8546 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.468163 0.462431 1 1 0.451222 0.445995 survival probability at puberty
theta_0b - 0.00101301 0.00100248 0.00559064 0.00576565 0.0492749 0.0491974 0.0613287 0.0634918 frac of ind that is embryo
theta_bp - 0.00101288 0.00100234 0.00372673 0.00382022 0.0468407 0.0467708 0.0397426 0.0409127 fraction of individuals that is juvenile
theta_pi - 0.997974 0.997995 0.990683 0.990414 0.903884 0.904032 0.898929 0.895596 frac of ind that is adult
L_bi cm 4.46173 4.55866 4.47397 4.57062 4.46174 4.54842 4.60492 4.69525 mean structural length of post-natals
L2_bi cm^2 19.915 20.79 20.0408 20.9177 20.3049 21.1205 21.5257 22.4023 mean squared structural length of post-natals
L3_bi cm^3 88.9132 94.8384 89.8328 95.8004 93.5792 99.3658 101.475 107.847 mean cubed structural length of post-natals
Ww_bi g 800.103 869.929 811.732 882.408 896.574 970.569 972.225 1053.41 mean wet weight of post-natals
L_pi cm 4.46386 4.56085 4.48209 4.57928 4.56868 4.65917 4.70509 4.80253 mean structural length of adults
L2_pi cm^2 19.9295 20.8052 20.0958 20.9773 21.0554 21.9094 22.2322 23.1706 mean squared structural length of adults
L3_pi cm^3 88.9895 94.9196 90.1223 96.1197 97.6871 103.757 105.373 112.159 mean cubed structural length of adults
Ww_pi g 800.79 870.674 814.348 885.348 935.932 1013.46 1009.57 1095.53 mean wet weight of adults
R 1/d 3.13488e-05 0.00237715 0.000485985 0.00284471 0.00350966 0.0057593 0.00635545 0.00882741 mean reproduction rate of adults
J_X g/d 71.5214 76.2885 72.3089 77.1151 78.2294 83.1425 82.9327 88.1883 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 0.00324286 0.00323991 0.000718108 0.000717718 yield of living structure on food
Y_VX_d mol/mol 6.74755e-05 6.68912e-05 0.000145101 0.000145003 8.25748e-08 8.0698e-08 0.000859681 0.000870838 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0278268 0.0284064 0.00616202 0.00629269 yield of living reserve on food
Y_EX_d mol/mol 0.000539716 0.000546685 0.00116604 0.0011906 7.08568e-07 7.07531e-07 0.00737685 0.00763519 yield of dead reserve on food
Y_CX mol/mol 0.723139 0.723134 0.722568 0.722548 0.698388 0.69792 0.711351 0.711026 yield of CO2 on food
Y_HX mol/mol 0.769865 0.76986 0.769256 0.769235 0.743515 0.743016 0.757315 0.756969 yield of H2O on food
Y_OX mol/mol -0.917831 -0.917824 -0.917105 -0.91708 -0.886416 -0.885821 -0.902868 -0.902456 yield of O2 on food
Y_NX mol/mol 0.166878 0.166877 0.166746 0.166742 0.161166 0.161058 0.164158 0.164083 yield of N-waste on food
mu_TX J/mol 464026 464022 463649 463636 447708 447396 456254 456038 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