Equus hemionus: Population traits

at T = 38.3 °C with background hazards for embryo, baby, juv, adult: 0, 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 stx f_min f_max date: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.973034 0.973034 0.979168 0.979168 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000583008 0.000583008 0.000211379 0.000211379 spec pop growth rate
t2 d NaN NaN NaN NaN 1188.92 1188.92 3279.16 3279.16 population doubling time
a_b d 168.209 NaN 168.209 168.209 168.209 168.209 168.209 168.209 age at birth
t_x d 1907.09 NaN 1478.63 2173.26 1090.45 1190.02 1090.45 1190.02 time since birth at weaning
t_p d 484.99 NaN 477.966 477.966 456.588 456.588 456.588 456.588 time since birth at puberty
S_b - 1 NaN 1 1 1 1 1 1 survival probability at birth
S_x - 1 NaN 0.528015 0.528015 1 1 0.520295 0.520295 survival probability at weaning
S_p - 0.999986 NaN 0.264344 0.261548 0.999998 0.999998 0.26121 0.258422 survival probability at puberty
theta_0b - 0.0132358 NaN 0.0474405 0.0474405 0.0935559 0.0935559 0.122973 0.122973 frac of ind that is embryo
theta_bx - 0.013235 NaN 0.033575 0.033575 0.0848115 0.0848115 0.0835312 0.0835312 fraction of individuals that is baby
theta_xp - 0.136818 NaN 0.115404 0.166825 0.34233 0.369446 0.188761 0.203356 fraction of individuals that is juvenile
theta_pi - 0.836711 NaN 0.803581 0.752159 0.479302 0.452187 0.604735 0.59014 frac of ind that is adult
L_bi cm 14.1378 NaN 14.0546 14.0546 13.4905 13.4905 13.7338 13.7338 mean structural length of post-natals
L2_bi cm^2 200.488 NaN 198.948 198.948 185.415 185.415 192.198 192.198 mean squared structural length of post-natals
L3_bi cm^3 2849.09 NaN 2829.47 2829.47 2583.2 2583.2 2724.52 2724.52 mean cubed structural length of post-natals
Ww_bi g 203374 NaN 203228 203228 189433 189433 199796 199796 mean wet weight of post-natals
L_pi cm 14.3227 NaN 14.411 14.4134 14.6688 14.6817 14.6966 14.7026 mean structural length of adults
L2_pi cm^2 205.14 NaN 207.678 207.745 215.179 215.557 215.992 216.168 mean squared structural length of adults
L3_pi cm^3 2938.17 NaN 2992.85 2994.31 3156.58 3164.85 3174.43 3178.28 mean cubed structural length of adults
Ww_pi g 209732 NaN 214964 215068 231480 232087 232789 233072 mean wet weight of adults
R 1/d 9.38826e-05 NaN 0.000350772 4.49408e-05 0.00110536 0.000835423 0.00118747 0.000897205 mean reproduction rate of adults
J_X g/d 9709.98 NaN 9696.16 9696.16 9228.85 9228.85 9566.43 9566.43 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.65625 NaN 0.65625 0.65625 0.65625 0.65625 0.65625 0.65625 yield of faeces on food
Y_VX mol/mol 0 NaN 0 0 0.000163187 0.000163187 6.02008e-05 6.02008e-05 yield of living structure on food
Y_VX_d mol/mol 2.41315e-05 NaN 4.72297e-05 4.72297e-05 3.30259e-07 3.30259e-07 6.95225e-05 6.95225e-05 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 0 0.0118037 0.0118037 0.00435448 0.00435448 yield of living reserve on food
Y_EX_d mol/mol 0.00169843 NaN 0.00334507 0.00334507 2.38885e-05 2.38885e-05 0.00502874 0.00502874 yield of dead reserve on food
Y_CX mol/mol 0.316375 NaN 0.314831 0.314831 0.306877 0.306877 0.309169 0.309169 yield of CO2 on food
Y_HX mol/mol 0.269822 NaN 0.268504 0.268504 0.261721 0.261721 0.263676 0.263676 yield of H2O on food
Y_OX mol/mol -0.371955 NaN -0.370139 -0.370139 -0.360788 -0.360788 -0.363483 -0.363483 yield of O2 on food
Y_NX mol/mol 0.0256521 NaN 0.0255268 0.0255268 0.0248819 0.0248819 0.0250678 0.0250678 yield of N-waste on food
mu_TX J/mol 205924 NaN 205022 205022 200377 200377 201716 201716 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