Xanthocephalus xanthocephalus: Population traits

at T = 41.6 °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: 2023/10/03
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.918356 0.918356 0.925729 0.925729 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00438184 0.00438184 0.00100912 0.00100912 spec pop growth rate
t2 d NaN NaN NaN NaN 158.186 158.186 686.885 686.885 population doubling time
a_b d 7.28971 7.21299 7.28432 7.20815 7.23429 7.16317 7.23429 7.16317 age at birth
t_p d 90.3963 31.3511 66.8905 30.5644 35.6217 25.11 35.6217 25.11 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.512691 0.476809 1 1 0.488879 0.456619 survival probability at puberty
theta_0b - 0.000965743 0.000880102 0.0042821 0.0049067 0.0312034 0.0309018 0.0350677 0.0429004 frac of ind that is embryo
theta_bp - 0.000965731 0.000880076 0.00299143 0.00330608 0.030229 0.0299457 0.0237591 0.0281061 fraction of individuals that is juvenile
theta_pi - 0.998069 0.99824 0.992726 0.991787 0.938568 0.939152 0.941173 0.928994 frac of ind that is adult
L_bi cm 1.64275 1.85139 1.65382 1.86297 1.72011 1.92355 1.75283 1.96152 mean structural length of post-natals
L2_bi cm^2 2.69942 3.42885 2.73724 3.47448 2.99041 3.75148 3.09514 3.88995 mean squared structural length of post-natals
L3_bi cm^3 4.43662 6.35179 4.53258 6.48405 5.23499 7.37954 5.48929 7.76117 mean cubed structural length of post-natals
Ww_bi g 27.1614 43.023 27.9352 44.2193 34.4329 53.7719 36.1056 56.5528 mean wet weight of post-natals
L_pi cm 1.64342 1.85215 1.65597 1.86598 1.74419 1.95312 1.77303 1.99146 mean structural length of adults
L2_pi cm^2 2.70114 3.43102 2.7428 3.48296 3.05596 3.83908 3.15011 3.9787 mean squared structural length of adults
L3_pi cm^3 4.44004 6.35654 4.54367 6.50261 5.37308 7.58219 5.60532 7.96714 mean cubed structural length of adults
Ww_pi g 27.1823 43.0551 28.0036 44.3459 35.3412 55.2486 36.8687 58.0535 mean wet weight of adults
R 1/d 0.000202813 0.0155976 0.00109669 0.0166889 0.00799904 0.0242709 0.00981643 0.0270747 mean reproduction rate of adults
J_X g/d 6.78272 9.71098 6.93296 9.91923 8.18188 11.5693 8.46841 11.9963 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 0.00280362 0.00279499 0.000654118 0.000652861 yield of living structure on food
Y_VX_d mol/mol 8.69633e-05 8.01019e-05 0.000180048 0.000174156 3.24675e-08 2.77377e-08 0.000729504 0.000789549 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0156371 0.017571 0.00364831 0.00410429 yield of living reserve on food
Y_EX_d mol/mol 0.000445433 0.000462457 0.000929624 0.00101354 1.81086e-07 1.74376e-07 0.00406877 0.0049636 yield of dead reserve on food
Y_CX mol/mol 0.7232 0.723192 0.722731 0.722668 0.70865 0.707085 0.716238 0.715093 yield of CO2 on food
Y_HX mol/mol 0.76993 0.769921 0.769431 0.769363 0.754439 0.752774 0.762519 0.761299 yield of H2O on food
Y_OX mol/mol -0.917908 -0.917898 -0.917313 -0.917232 -0.89944 -0.897454 -0.909072 -0.907618 yield of O2 on food
Y_NX mol/mol 0.166892 0.16689 0.166784 0.166769 0.163535 0.163174 0.165286 0.165022 yield of N-waste on food
mu_TX J/mol 464067 464061 463760 463717 454517 453475 459498 458738 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