Ardea herodias: Population traits

at T = 40.6 °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: 2025/02/11
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.93941 0.93941 0.945446 0.945446 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00430363 0.00430363 0.000756808 0.000756808 spec pop growth rate
t2 d NaN NaN NaN NaN 161.061 161.061 915.882 915.882 population doubling time
a_b d 18.5763 18.5366 18.5695 18.5302 18.5123 18.4751 18.5123 18.4751 age at birth
t_p d 426.633 187.211 284.353 179.03 161.642 138.007 161.642 138.007 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.389921 0.38374 1 1 0.380966 0.375226 survival probability at puberty
theta_0b - 0.00190503 0.00185813 0.0199894 0.0209632 0.0765958 0.0764477 0.127262 0.134104 frac of ind that is embryo
theta_bp - 0.00190459 0.00185769 0.0121881 0.0126863 0.0707142 0.0705887 0.0757707 0.0792836 fraction of individuals that is juvenile
theta_pi - 0.99619 0.996284 0.967822 0.96635 0.85269 0.852964 0.796967 0.786612 frac of ind that is adult
L_bi cm 4.71563 4.89899 4.69899 4.87764 4.26287 4.39407 4.53462 4.67063 mean structural length of post-natals
L2_bi cm^2 22.2704 24.0377 22.2306 23.9682 19.1345 20.3947 21.5901 23.0207 mean squared structural length of post-natals
L3_bi cm^3 105.261 118.043 105.497 118.166 88.5778 97.778 105.231 116.383 mean cubed structural length of post-natals
Ww_bi g 1693.42 1968.54 1707.45 1982.49 1511.22 1729.46 1795.35 2058.54 mean wet weight of post-natals
L_pi cm 4.721 4.90456 4.73504 4.91746 4.45767 4.59849 4.79018 4.95452 mean structural length of adults
L2_pi cm^2 22.306 24.0756 22.4673 24.2373 20.412 21.7703 23.3122 24.9875 mean squared structural length of adults
L3_pi cm^3 105.449 118.249 106.744 119.63 95.3103 105.247 114.602 127.432 mean cubed structural length of adults
Ww_pi g 1696.44 1971.98 1727.62 2007.06 1626.08 1861.57 1955.21 2253.97 mean wet weight of adults
R 1/d 0 0.0122477 0.000761658 0.0135752 0 0 0.00862753 0.0206317 mean reproduction rate of adults
J_X g/d 757.123 849.088 760.626 852.072 692.469 766.869 781.336 865.613 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.546875 0.546875 0.546875 0.546875 0.546875 0.546875 0.546875 0.546875 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.000550503 0.000548725 0.000101928 0.000101754 yield of living structure on food
Y_VX_d mol/mol 1.44137e-05 1.40907e-05 3.44942e-05 3.40264e-05 8.13466e-09 7.76483e-09 0.000144519 0.000146323 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0088416 0.0091569 0.00163706 0.00169804 yield of living reserve on food
Y_EX_d mol/mol 0.000217471 0.000220893 0.000523786 0.000536841 1.3065e-07 1.29576e-07 0.00232111 0.00244177 yield of dead reserve on food
Y_CX mol/mol 0.367976 0.367973 0.36771 0.3677 0.360533 0.360278 0.364748 0.364599 yield of CO2 on food
Y_HX mol/mol 0.391753 0.39175 0.39147 0.391459 0.383829 0.383558 0.388316 0.388158 yield of H2O on food
Y_OX mol/mol -0.467046 -0.467043 -0.466709 -0.466696 -0.457599 -0.457276 -0.462949 -0.46276 yield of O2 on food
Y_NX mol/mol 0.0849175 0.0849169 0.0848563 0.0848539 0.0831999 0.0831411 0.0841726 0.0841382 yield of N-waste on food
mu_TX J/mol 258229 258228 258054 258047 253302 253132 256092 255993 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