Microtus arvalis: Population traits

at T = 37 °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 - 0.435888 0.637762 0.818881 0.818881 1 1 scaled functional response
r 1/d 0 0 0.0154842 0.00178575 0.0207177 0.00285049 spec pop growth rate
t2 d NaN NaN 44.7649 388.155 33.4567 243.168 population doubling time
a_b d 6.55817 6.55817 6.55817 6.55817 6.55817 6.55817 age at birth
t_x d 34.5227 20.4328 16.249 16.249 14.0707 14.0707 time since birth at weaning
t_p d 5.44292 4.10624 3.55238 3.55238 3.22249 3.22249 time since birth at puberty
S_b - 0.999991 0.999991 0.999991 0.999991 0.999991 0.999991 survival probability at birth
S_x - 0.999921 0.642763 0.999937 0.558434 0.999941 0.503324 survival probability at weaning
S_p - 0.997486 0.392588 0.999711 0.340231 0.9998 0.313239 survival probability at puberty
theta_0b - 0.0246655 0.0699436 0.0985979 0.11614 0.127963 0.161655 frac of ind that is embryo
theta_bx - 0.0246646 0.0555275 0.0890742 0.0848731 0.111703 0.111382 fraction of individuals that is baby
theta_xp - 0.105079 0.0726452 0.116107 0.0719062 0.11062 0.0701463 fraction of individuals that is juvenile
theta_pi - 0.845591 0.801884 0.696221 0.72708 0.649714 0.656817 frac of ind that is adult
L_bi cm 1.07551 1.49681 1.66711 1.80044 1.82335 2.04113 mean structural length of post-natals
L2_bi cm^2 1.16 2.2853 2.92216 3.39818 3.5959 4.52208 mean squared structural length of post-natals
L3_bi cm^3 1.2541 3.53623 5.30793 6.60074 7.49558 10.4978 mean cubed structural length of post-natals
Ww_bi g 2.46416 8.52851 14.9295 18.5658 24.0879 33.7359 mean wet weight of post-natals
L_pi cm 1.09499 1.57412 1.8404 1.96466 2.07086 2.31419 mean structural length of adults
L2_pi cm^2 1.19913 2.48351 3.43248 3.8925 4.40144 5.4566 mean squared structural length of adults
L3_pi cm^3 1.3133 3.92608 6.47709 7.76429 9.56924 13.0483 mean cubed structural length of adults
Ww_pi g 2.58049 9.46873 18.218 21.8385 30.7518 41.9321 mean wet weight of adults
R 1/d 0.00440091 0.0132555 0.0205045 0.0241808 0.0280288 0.0371516 mean reproduction rate of adults
J_X g/d 1.10274 3.17864 5.21873 6.06886 7.84236 9.8623 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 0.0157488 0.00194225 0.0198016 0.00303417 yield of living structure on food
Y_VX_d mol/mol 0.00464592 0.00721702 0.00056098 0.00701183 0.0002855 0.00705015 yield of dead structure on food
Y_EX mol/mol 0 0 0.0285476 0.00352068 0.043833 0.00671647 yield of living reserve on food
Y_EX_d mol/mol 0.00448277 0.0101887 0.00101688 0.0127102 0.000631984 0.0156063 yield of dead reserve on food
Y_CX mol/mol 0.815384 0.807728 0.781394 0.800532 0.764117 0.793852 yield of CO2 on food
Y_HX mol/mol 0.695403 0.688873 0.666414 0.682736 0.65168 0.677039 yield of H2O on food
Y_OX mol/mol -0.958627 -0.949626 -0.918666 -0.941166 -0.898354 -0.933312 yield of O2 on food
Y_NX mol/mol 0.0661122 0.0654914 0.0633563 0.064908 0.0619555 0.0643663 yield of N-waste on food
mu_TX J/mol 459646 455298 440355 451177 430442 447328 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