Spermophilus citellus: Population traits

at T = 37.5 °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: 2025/05/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.942236 0.942236 0.96061 0.96061 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0048623 0.0048623 0.000805303 0.000805303 spec pop growth rate
t2 d NaN NaN NaN NaN 142.555 142.555 860.728 860.728 population doubling time
a_b d 12.9904 12.9904 12.9904 12.9904 12.9904 12.9904 12.9904 12.9904 age at birth
t_x d 677.617 353.959 405.235 310.189 298.164 257.837 298.164 257.837 time since birth at weaning
t_p d 34.9674 34.4489 34.6603 34.16 34.0553 33.5902 34.0553 33.5902 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_x - 1 1 0.377315 0.372561 1 1 0.371555 0.367038 survival probability at weaning
S_p - 0.992522 0.999255 0.0661706 0.0622678 0.999587 0.999768 0.0614782 0.0581161 survival probability at puberty
theta_0b - 0.00501715 0.00494593 0.0658125 0.0687605 0.0612833 0.0612797 0.142912 0.149058 frac of ind that is embryo
theta_bx - 0.00501711 0.0049459 0.0396366 0.0411654 0.0575318 0.0575285 0.084633 0.0877677 fraction of individuals that is baby
theta_xp - 0.256249 0.129796 0.171606 0.139493 0.661812 0.614021 0.252092 0.230728 fraction of individuals that is juvenile
theta_pi - 0.733717 0.860312 0.722945 0.750581 0.219373 0.26717 0.520363 0.532446 frac of ind that is adult
L_bi cm 2.18724 2.25967 2.13937 2.2037 1.98152 2.03409 2.05444 2.10469 mean structural length of post-natals
L2_bi cm^2 4.80997 5.13495 4.71042 5.00921 4.15764 4.39344 4.51802 4.76767 mean squared structural length of post-natals
L3_bi cm^3 10.6072 11.7024 10.4987 11.5342 9.00981 9.81366 10.2414 11.1538 mean cubed structural length of post-natals
Ww_bi g 263.963 300.601 266.152 301.833 237.404 266.936 269.857 303.388 mean wet weight of post-natals
L_pi cm 2.22028 2.29476 2.26356 2.33942 2.35473 2.43121 2.35598 2.43442 mean structural length of adults
L2_pi cm^2 4.92966 5.26592 5.12371 5.4729 5.54478 5.9108 5.55065 5.92642 mean squared structural length of adults
L3_pi cm^3 10.9452 12.084 11.5978 12.8034 13.0565 14.3705 13.0772 14.4275 mean cubed structural length of adults
Ww_pi g 272.375 310.402 294.017 335.045 344.032 390.885 344.579 392.434 mean wet weight of adults
R 1/d 0.000526677 0.0117154 0.00700976 0.0185012 0.0208343 0.0326051 0.0210309 0.033131 mean reproduction rate of adults
J_X g/d 20.2363 22.3288 20.204 22.2068 18.5642 20.2756 20.1733 22.0026 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 0.00235983 0.00235342 0.00040883 0.000408232 yield of living structure on food
Y_VX_d mol/mol 0.000209941 0.000207082 0.000512261 0.000508272 4.31318e-06 4.14684e-06 0.000810431 0.000811649 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0598207 0.0616608 0.0103636 0.0106959 yield of living reserve on food
Y_EX_d mol/mol 0.0050145 0.00511223 0.0124741 0.0127924 0.000109337 0.000108649 0.020544 0.0212656 yield of dead reserve on food
Y_CX mol/mol 0.818996 0.818908 0.811816 0.811525 0.766206 0.764511 0.794111 0.793135 yield of CO2 on food
Y_HX mol/mol 0.698483 0.698408 0.692359 0.692111 0.653461 0.652015 0.67726 0.676428 yield of H2O on food
Y_OX mol/mol -0.962873 -0.96277 -0.954432 -0.95409 -0.90081 -0.898817 -0.933617 -0.93247 yield of O2 on food
Y_NX mol/mol 0.066405 0.0663979 0.0658229 0.0657993 0.0621248 0.0619873 0.0643874 0.0643083 yield of N-waste on food
mu_TX J/mol 461536 461484 457353 457183 430777 429786 447036 446466 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