Gyps africanus: Population traits

at T = 40 °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 - 0.966927 NaN 0.983464 NaN 1 1 scaled functional response
r 1/d 0 0 0.000533691 NaN 0.000880859 NaN spec pop growth rate
t2 d NaN NaN 1298.78 NaN 786.899 NaN population doubling time
a_b d 38.4174 NaN 38.3779 NaN 38.3398 NaN age at birth
t_p d 610.727 NaN 427.481 NaN 364.695 NaN time since birth at puberty
S_b - 1 NaN 1 NaN 1 NaN survival probability at birth
S_p - 1 NaN 1 NaN 1 NaN survival probability at puberty
theta_0b - 0.00511535 NaN 0.0210913 NaN 0.0335283 NaN frac of ind that is embryo
theta_bp - 0.00511374 NaN 0.0206573 NaN 0.0324049 NaN fraction of individuals that is juvenile
theta_pi - 0.989771 NaN 0.958251 NaN 0.934067 NaN frac of ind that is adult
L_bi cm 7.03235 NaN 6.91857 NaN 6.85279 NaN mean structural length of post-natals
L2_bi cm^2 49.6337 NaN 48.5661 NaN 48.0427 NaN mean squared structural length of post-natals
L3_bi cm^3 351.013 NaN 343.714 NaN 341.223 NaN mean cubed structural length of post-natals
Ww_bi g 5520.75 NaN 5492.52 NaN 5538.66 NaN mean wet weight of post-natals
L_pi cm 7.05328 NaN 7.00332 NaN 6.98668 NaN mean structural length of adults
L2_pi cm^2 49.8434 NaN 49.4174 NaN 49.3932 NaN mean squared structural length of adults
L3_pi cm^3 352.683 NaN 350.52 NaN 352.083 NaN mean cubed structural length of adults
Ww_pi g 5547.01 NaN 5601.28 NaN 5714.93 NaN mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 NaN mean reproduction rate of adults
J_X g/d 185.295 NaN 184.41 NaN 185.49 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0.000994725 NaN 0.00162041 NaN yield of living structure on food
Y_VX_d mol/mol 0.000259441 NaN 4.47171e-05 NaN 1.82293e-05 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0.0149009 NaN 0.0246817 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00382105 NaN 0.000669858 NaN 0.000277665 NaN yield of dead reserve on food
Y_CX mol/mol 0.720317 NaN 0.710137 NaN 0.702022 NaN yield of CO2 on food
Y_HX mol/mol 0.766861 NaN 0.756023 NaN 0.747383 NaN yield of H2O on food
Y_OX mol/mol -0.914249 NaN -0.901328 NaN -0.891028 NaN yield of O2 on food
Y_NX mol/mol 0.166227 NaN 0.163878 NaN 0.162005 NaN yield of N-waste on food
mu_TX J/mol 462157 NaN 455419 NaN 450047 NaN 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