Arvicola amphibius: 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_minf f_max date: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.607188 0.615505 0.807753 0.807753 1 1 scaled functional response
r 1/d 0 0 0.00968066 0.00301156 0.0184434 0.00458402 spec pop growth rate
t2 d NaN NaN 71.6012 230.162 37.5825 151.209 population doubling time
a_b d 3.24002 3.24002 3.24002 3.24002 3.24002 3.24002 age at birth
t_x d 441.22 321.646 80.3703 80.3703 50.9626 50.9626 time since birth at weaning
t_p d 28.7015 28.0543 19.1031 19.1031 15.1293 15.1293 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_x - 1 0.778923 1 0.68518 1 0.618847 survival probability at weaning
S_p - 1 0.31475 1 0.185971 1 0.134308 survival probability at puberty
theta_0b - 0.00091278 0.00287275 0.0308789 0.0459143 0.0580067 0.0908363 frac of ind that is embryo
theta_bx - 0.000912777 0.00252558 0.0299253 0.0374489 0.0546417 0.0700138 fraction of individuals that is baby
theta_xp - 0.123388 0.0938359 0.494072 0.249935 0.519354 0.269147 fraction of individuals that is juvenile
theta_pi - 0.874787 0.900766 0.445123 0.666701 0.367998 0.570003 frac of ind that is adult
L_bi cm 2.40916 2.438 2.92369 2.99661 3.24961 3.42764 mean structural length of post-natals
L2_bi cm^2 5.80668 5.94969 8.75229 9.19006 11.1311 12.4282 mean squared structural length of post-natals
L3_bi cm^3 14 14.5294 26.6218 28.5865 39.4957 46.5399 mean cubed structural length of post-natals
Ww_bi g 21.9785 22.923 46.8046 50.2588 76.5651 90.2206 mean wet weight of post-natals
L_pi cm 2.41424 2.44731 3.20734 3.21016 3.91201 3.95453 mean structural length of adults
L2_pi cm^2 5.82856 5.98933 10.2871 10.3051 15.3083 15.6405 mean squared structural length of adults
L3_pi cm^3 14.0716 14.6578 32.9944 33.0812 59.9206 61.8679 mean cubed structural length of adults
Ww_pi g 22.0908 23.1254 58.0085 58.1611 116.16 119.935 mean wet weight of adults
R 1/d 0.000323076 0.00102322 0.0210772 0.0211533 0.0472119 0.0488325 mean reproduction rate of adults
J_X g/d 5.50903 5.72203 11.0465 11.599 17.3925 19.4193 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 yield of faeces on food
Y_VX mol/mol 0 0 0.0233302 0.00742218 0.0418821 0.010986 yield of living structure on food
Y_VX_d mol/mol 0.000720245 0.00134637 4.14259e-09 0.00840319 2.24099e-09 0.0142609 yield of dead structure on food
Y_EX mol/mol 0 0 0.0176873 0.00562697 0.0393091 0.0103111 yield of living reserve on food
Y_EX_d mol/mol 0.000410458 0.000777788 3.14062e-09 0.00637071 2.10332e-09 0.0133848 yield of dead reserve on food
Y_CX mol/mol 0.822782 0.821863 0.785887 0.798092 0.748726 0.778556 yield of CO2 on food
Y_HX mol/mol 0.701712 0.700928 0.670246 0.680655 0.638553 0.663994 yield of H2O on food
Y_OX mol/mol -0.967325 -0.966245 -0.923948 -0.938297 -0.880259 -0.91533 yield of O2 on food
Y_NX mol/mol 0.0667121 0.0666376 0.0637206 0.0647101 0.0607075 0.0631262 yield of N-waste on food
mu_TX J/mol 463775 463269 443333 450094 422533 439142 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female are the same.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer