Didelphis virginiana: Population traits

at T = 35 °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: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.434698 0.434698 NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00720173 0.00720173 NaN NaN spec pop growth rate
t2 d NaN NaN NaN NaN 96.2473 96.2473 NaN NaN population doubling time
a_b d 6.59215 6.59215 NaN NaN 6.59215 6.59215 NaN NaN age at birth
t_x d 936.392 407.559 NaN NaN 199.662 179.058 NaN NaN time since birth at weaning
t_p d 199.691 165.521 NaN NaN 107.272 98.746 NaN NaN time since birth at puberty
S_b - 1 1 NaN NaN 1 1 NaN NaN survival probability at birth
S_x - 1 1 NaN NaN 1 1 NaN NaN survival probability at weaning
S_p - 0.995355 0.999794 NaN NaN 0.999974 0.999984 NaN NaN survival probability at puberty
theta_0b - 0.00163722 0.00152734 NaN NaN 0.0463721 0.0463906 NaN NaN frac of ind that is embryo
theta_bx - 0.00163707 0.00152653 NaN NaN 0.0442181 0.0442166 NaN NaN fraction of individuals that is baby
theta_xp - 0.230663 0.092846 NaN NaN 0.683036 0.646796 NaN NaN fraction of individuals that is juvenile
theta_pi - 0.766063 0.9041 NaN NaN 0.226374 0.262597 NaN NaN frac of ind that is adult
L_bi cm 4.00911 4.81367 NaN NaN 3.51629 3.86173 NaN NaN mean structural length of post-natals
L2_bi cm^2 16.3437 23.5838 NaN NaN 17.2745 21.3535 NaN NaN mean squared structural length of post-natals
L3_bi cm^3 67.0737 116.344 NaN NaN 101.053 142.502 NaN NaN mean cubed structural length of post-natals
Ww_bi g 139.372 267.149 NaN NaN 351.627 567.421 NaN NaN mean wet weight of post-natals
L_pi cm 4.16278 4.98491 NaN NaN 6.72002 7.28254 NaN NaN mean structural length of adults
L2_pi cm^2 17.3288 24.854 NaN NaN 46.2495 55.0056 NaN NaN mean squared structural length of adults
L3_pi cm^3 72.1358 123.94 NaN NaN 326.064 431.019 NaN NaN mean cubed structural length of adults
Ww_pi g 149.89 284.592 NaN NaN 1134.58 1716.25 NaN NaN mean wet weight of adults
R 1/d 0.000323639 0.00823601 NaN NaN 0.0303399 0.0379705 NaN NaN mean reproduction rate of adults
J_X g/d 3.6392 6.31492 NaN NaN 8.84861 13.1533 NaN NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 NaN NaN 0.109375 0.109375 NaN NaN yield of faeces on food
Y_VX mol/mol 0 0 NaN NaN 0.0822453 0.0780234 NaN NaN yield of living structure on food
Y_VX_d mol/mol 0.00493127 0.00460751 NaN NaN 2.07441e-05 1.57722e-05 NaN NaN yield of dead structure on food
Y_EX mol/mol 0 0 NaN NaN 0.203938 0.232653 NaN NaN yield of living reserve on food
Y_EX_d mol/mol 0.00531536 0.00597225 NaN NaN 5.14376e-05 4.703e-05 NaN NaN yield of dead reserve on food
Y_CX mol/mol 0.81435 0.814042 NaN NaN 0.559042 0.536394 NaN NaN yield of CO2 on food
Y_HX mol/mol 0.694521 0.694258 NaN NaN 0.47678 0.457466 NaN NaN yield of H2O on food
Y_OX mol/mol -0.957411 -0.957049 NaN NaN -0.657252 -0.630626 NaN NaN yield of O2 on food
Y_NX mol/mol 0.0660284 0.0660034 NaN NaN 0.0453277 0.0434914 NaN NaN yield of N-waste on food
mu_TX J/mol 459055 458859 NaN NaN 313643 300189 NaN NaN 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