Bison bonasus: Population traits

at T = 38.4 °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: 2023/04/13
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.798154 0.798154 0.819801 0.819801 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000980591 0.000980591 0.000309424 0.000309424 spec pop growth rate
t2 d NaN NaN NaN NaN 706.866 706.866 2240.12 2240.12 population doubling time
a_b d 160.263 160.263 160.263 160.263 160.263 160.263 160.263 160.263 age at birth
t_x d 2233.03 1036.63 1513.5 934.313 691.579 581.012 691.579 581.012 time since birth at weaning
t_p d 283.352 244.987 270.558 235.763 205.344 186.326 205.344 186.326 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 1 1 0.615256 0.583247 1 1 0.548171 0.52184 survival probability at weaning
S_p - 0.999729 0.999978 0.246523 0.244082 0.999992 0.999996 0.241507 0.239642 survival probability at puberty
theta_0b - 0.0110869 0.0104363 0.0448651 0.0497248 0.145484 0.145472 0.192742 0.211151 frac of ind that is embryo
theta_bx - 0.0110857 0.0104352 0.0347746 0.0375037 0.124315 0.124306 0.134381 0.143632 fraction of individuals that is baby
theta_xp - 0.143368 0.0570628 0.124699 0.0825624 0.296646 0.246942 0.190021 0.165159 fraction of individuals that is juvenile
theta_pi - 0.834459 0.922066 0.795661 0.830209 0.433554 0.48328 0.482857 0.480059 frac of ind that is adult
L_bi cm 39.6976 43.3716 39.9042 43.368 39.0768 41.543 40.901 43.1628 mean structural length of post-natals
L2_bi cm^2 1583.21 1891.33 1611.85 1910.52 1612.17 1839.45 1782.48 2016.06 mean squared structural length of post-natals
L3_bi cm^3 63339.8 82766.9 65619.5 84974.9 69301 85381.1 81115.3 99236.7 mean cubed structural length of post-natals
Ww_bi g 184403 255863 194441 267509 235255 309102 275361 359262 mean wet weight of post-natals
L_pi cm 40.4546 44.1236 41.5044 45.2446 46.891 49.7121 48.6766 52.2268 mean structural length of adults
L2_pi cm^2 1636.58 1947.17 1722.66 2047.65 2207.91 2490.74 2377.1 2745.42 mean squared structural length of adults
L3_pi cm^3 66207.4 85940.7 71501.1 92694.8 104377 125720 116429 145150 mean cubed structural length of adults
Ww_pi g 192751 265674 211869 291811 354326 455140 395240 525481 mean wet weight of adults
R 1/d 8.28303e-05 0.00105162 0.000351401 0.00136642 0.0019334 0.00282621 0.00242884 0.00359464 mean reproduction rate of adults
J_X g/d 1481.04 1935.93 1548.72 2008.62 1889.51 2358.98 2089.12 2585.47 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 0.0359649 0.0354916 0.0120142 0.0118765 yield of living structure on food
Y_VX_d mol/mol 0.00313012 0.00295105 0.00639434 0.00625336 2.4521e-05 1.91805e-05 0.0149725 0.0153679 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0861244 0.0929972 0.0287701 0.0311194 yield of living reserve on food
Y_EX_d mol/mol 0.00598267 0.00617174 0.0125531 0.0134328 5.87199e-05 5.02578e-05 0.0358544 0.0402678 yield of dead reserve on food
Y_CX mol/mol 0.815399 0.81539 0.806302 0.805618 0.710819 0.704912 0.739088 0.732594 yield of CO2 on food
Y_HX mol/mol 0.695415 0.695407 0.687657 0.687074 0.606224 0.601186 0.630333 0.624795 yield of H2O on food
Y_OX mol/mol -0.958645 -0.958634 -0.947949 -0.947146 -0.835692 -0.828748 -0.868928 -0.861293 yield of O2 on food
Y_NX mol/mol 0.0661134 0.0661127 0.0653758 0.0653204 0.0576339 0.057155 0.059926 0.0593995 yield of N-waste on food
mu_TX J/mol 459579 459564 454423 454016 400073 396596 416152 412368 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