Vulpes lagopus: Population traits

at T = 38.6 °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: 2023/04/12
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.945527 0.945527 0.948967 0.948967 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00453397 0.00453397 0.00133422 0.00133422 spec pop growth rate
t2 d NaN NaN NaN NaN 152.879 152.879 519.515 519.515 population doubling time
a_b d 13.8613 13.8613 13.8613 13.8613 13.8613 13.8613 13.8613 13.8613 age at birth
t_x d 797.403 341.667 564.005 333.126 306.237 258.469 306.237 258.469 time since birth at weaning
t_p d 53.841 52.2541 53.6853 52.1108 51.5698 50.1587 51.5698 50.1587 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 1 1 0.461323 0.452934 1 1 0.44997 0.442037 survival probability at weaning
S_p - 1 1 0.0879885 0.0821222 1 1 0.080252 0.0756563 survival probability at puberty
theta_0b - 0.00191725 0.00185565 0.0203406 0.0209706 0.060913 0.060913 0.151925 0.159609 frac of ind that is embryo
theta_bx - 0.00191724 0.00185564 0.0136204 0.0139151 0.0572023 0.0572023 0.0987629 0.102853 fraction of individuals that is baby
theta_xp - 0.108376 0.0438839 0.0880888 0.056829 0.647624 0.590974 0.32055 0.292224 fraction of individuals that is juvenile
theta_pi - 0.887789 0.952405 0.87795 0.908285 0.234261 0.29091 0.428762 0.445313 frac of ind that is adult
L_bi cm 8.08293 8.39893 8.00259 8.30976 7.19524 7.42173 7.21319 7.40082 mean structural length of post-natals
L2_bi cm^2 65.472 70.6955 64.6495 69.7497 54.6962 58.3736 56.2239 59.6128 mean squared structural length of post-natals
L3_bi cm^3 530.925 595.741 524.51 588.055 429.658 475.145 455.856 500.973 mean cubed structural length of post-natals
Ww_bi g 2512.89 2906.79 2489.65 2877.58 2126 2424.55 2255.63 2556.35 mean wet weight of post-natals
L_pi cm 8.13219 8.45048 8.16177 8.48119 8.58813 8.90586 8.59627 8.92627 mean structural length of adults
L2_pi cm^2 66.1325 71.4106 66.6145 71.9306 73.7562 79.3158 73.8959 79.679 mean squared structural length of adults
L3_pi cm^3 537.803 603.454 543.693 610.057 633.432 706.401 635.231 711.248 mean cubed structural length of adults
Ww_pi g 2545.45 2944.42 2580.71 2985.25 3134.29 3604.6 3143.19 3629.33 mean wet weight of adults
R 1/d 0.000162409 0.0173024 0.00173508 0.018982 0.0249003 0.0427355 0.0253274 0.0438611 mean reproduction rate of adults
J_X g/d 167.691 188.163 166.187 186.321 148.163 164.318 152.301 167.806 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 0.0131481 0.0131105 0.00399349 0.00398321 yield of living structure on food
Y_VX_d mol/mol 0.000444443 0.000430174 0.0010376 0.00100137 4.06068e-14 1.77524e-14 0.00560561 0.00567411 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0519102 0.0537894 0.0157668 0.0163422 yield of living reserve on food
Y_EX_d mol/mol 0.00165913 0.00166877 0.0038875 0.00389871 1.6032e-13 7.28341e-14 0.0221316 0.0232795 yield of dead reserve on food
Y_CX mol/mol 0.821882 0.821887 0.819272 0.819296 0.763649 0.761946 0.779893 0.778245 yield of CO2 on food
Y_HX mol/mol 0.700945 0.700948 0.698719 0.698739 0.65128 0.649828 0.665134 0.663728 yield of H2O on food
Y_OX mol/mol -0.966267 -0.966272 -0.963199 -0.963226 -0.897804 -0.895801 -0.916901 -0.914964 yield of O2 on food
Y_NX mol/mol 0.0666391 0.0666395 0.0664275 0.0664294 0.0619175 0.0617794 0.0632346 0.0631009 yield of N-waste on food
mu_TX J/mol 463235 463237 461739 461751 429821 428823 439142 438181 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