Dicrostonyx unalascensis: 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: 2025/07/25
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.572728 0.572728 0.574874 0.574874 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0264502 0.0264502 0.0077533 0.0077533 spec pop growth rate
t2 d NaN NaN NaN NaN 26.2057 26.2057 89.4002 89.4002 population doubling time
a_b d 4.74789 NaN 4.74789 NaN 4.74789 4.74789 4.74789 4.74789 age at birth
t_x d 492.234 NaN 404.419 NaN 39.84 41.2316 39.84 41.2316 time since birth at weaning
t_p d 39.9232 NaN 39.5743 NaN 18.1033 18.4593 18.1033 18.4593 time since birth at puberty
S_b - 1 NaN 1 NaN 1 1 1 1 survival probability at birth
S_x - 1 NaN 0.672854 NaN 1 1 0.468205 0.474082 survival probability at weaning
S_p - 1 NaN 0.404644 NaN 1 1 0.147347 0.15206 survival probability at puberty
theta_0b - 0.000870786 NaN 0.0020949 NaN 0.118018 0.118018 0.177085 0.172134 frac of ind that is embryo
theta_bx - 0.00087078 NaN 0.00169139 NaN 0.104089 0.104089 0.114813 0.112291 fraction of individuals that is baby
theta_xp - 0.0894068 NaN 0.0723114 NaN 0.470418 0.481529 0.239587 0.244728 fraction of individuals that is juvenile
theta_pi - 0.908852 NaN 0.923902 NaN 0.307476 0.296364 0.468515 0.470846 frac of ind that is adult
L_bi cm 1.41217 NaN 1.41696 NaN 2.01534 1.98155 2.10111 2.06888 mean structural length of post-natals
L2_bi cm^2 1.99446 NaN 2.00819 NaN 4.27067 4.12 4.67144 4.51362 mean squared structural length of post-natals
L3_bi cm^3 2.81711 NaN 2.84657 NaN 9.36843 8.85669 10.7482 10.172 mean cubed structural length of post-natals
Ww_bi g 13.1988 NaN 13.3761 NaN 69.6496 64.554 79.9073 74.1409 mean wet weight of post-natals
L_pi cm 1.41309 NaN 1.41839 NaN 2.43357 2.3836 2.45436 2.40083 mean structural length of adults
L2_pi cm^2 1.99683 NaN 2.01182 NaN 5.92343 5.68235 6.02452 5.76444 mean squared structural length of adults
L3_pi cm^3 2.8217 NaN 2.85354 NaN 14.4207 13.5483 14.7894 13.8415 mean cubed structural length of adults
Ww_pi g 13.2203 NaN 13.4088 NaN 107.211 98.7496 109.952 100.887 mean wet weight of adults
R 1/d 0.000203659 NaN 0.000495995 NaN 0.0758702 0.0712601 0.0781515 0.0731008 mean reproduction rate of adults
J_X g/d 5.48725 NaN 5.54572 NaN 20.5152 19.343 22.4404 21.1911 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.0120787 0.0121109 0.00371356 0.00372169 yield of living structure on food
Y_VX_d mol/mol 9.43935e-05 NaN 0.000159058 NaN 1.42393e-14 1.69003e-14 0.00451521 0.0044641 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.0777203 0.0761621 0.0238949 0.0234047 yield of living reserve on food
Y_EX_d mol/mol 0.000347861 NaN 0.000588358 NaN 9.16226e-14 1.06281e-13 0.0290532 0.0280735 yield of dead reserve on food
Y_CX mol/mol 0.823419 NaN 0.823137 NaN 0.740764 0.742176 0.76724 0.768639 yield of CO2 on food
Y_HX mol/mol 0.702255 NaN 0.702015 NaN 0.631763 0.632967 0.654342 0.655536 yield of H2O on food
Y_OX mol/mol -0.968074 NaN -0.967742 NaN -0.870898 -0.872558 -0.902025 -0.90367 yield of O2 on food
Y_NX mol/mol 0.0667637 NaN 0.0667408 NaN 0.0600619 0.0601764 0.0622086 0.0623221 yield of N-waste on food
mu_TX J/mol 464116 NaN 463954 NaN 416387 417214 431675 432491 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