Lontra canadensis: 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: 2023/04/12
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.965675 0.965675 0.971428 0.971428 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00194434 0.00194434 0.000312639 0.000312639 spec pop growth rate
t2 d NaN NaN NaN NaN 356.496 356.496 2217.08 2217.08 population doubling time
a_b d 29.3159 NaN 29.3159 NaN 29.3159 NaN 29.3159 NaN age at birth
t_x d 1084.74 NaN 745.061 NaN 523.734 NaN 523.734 NaN time since birth at weaning
t_p d 137.494 NaN 136.815 NaN 133.654 NaN 133.654 NaN time since birth at puberty
S_b - 1 NaN 1 NaN 1 NaN 1 NaN survival probability at birth
S_x - 1 NaN 0.394115 NaN 1 NaN 0.38946 NaN survival probability at weaning
S_p - 1 NaN 0.070119 NaN 1 NaN 0.067491 NaN survival probability at puberty
theta_0b - 0.00197172 NaN 0.02586 NaN 0.0554064 NaN 0.108397 NaN frac of ind that is embryo
theta_bx - 0.0019717 NaN 0.0159383 NaN 0.0523361 NaN 0.0658703 NaN fraction of individuals that is baby
theta_xp - 0.070985 NaN 0.0609904 NaN 0.551068 NaN 0.177801 NaN fraction of individuals that is juvenile
theta_pi - 0.925072 NaN 0.897211 NaN 0.34119 NaN 0.647932 NaN frac of ind that is adult
L_bi cm 8.09317 NaN 8.01422 NaN 7.20158 NaN 7.61214 NaN mean structural length of post-natals
L2_bi cm^2 65.6435 NaN 64.951 NaN 54.623 NaN 60.9668 NaN mean squared structural length of post-natals
L3_bi cm^3 533.034 NaN 528.864 NaN 426.652 NaN 499.389 NaN mean cubed structural length of post-natals
Ww_bi g 6842.98 NaN 6826.75 NaN 5656.8 NaN 6621.2 NaN mean wet weight of post-natals
L_pi cm 8.14218 NaN 8.19058 NaN 8.41258 NaN 8.42783 NaN mean structural length of adults
L2_pi cm^2 66.2951 NaN 67.0856 NaN 70.7722 NaN 71.0285 NaN mean squared structural length of adults
L3_pi cm^3 539.786 NaN 549.47 NaN 595.388 NaN 598.619 NaN mean cubed structural length of adults
Ww_pi g 6929.68 NaN 7092.75 NaN 7894.01 NaN 7936.84 NaN mean wet weight of adults
R 1/d 7.11236e-05 NaN 0.00101562 NaN 0.00538548 NaN 0.00568443 NaN mean reproduction rate of adults
J_X g/d 225.48 NaN 224.43 NaN 194.295 NaN 216.86 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.00426957 NaN 0.000719953 NaN yield of living structure on food
Y_VX_d mol/mol 0.000161328 NaN 0.000382902 NaN 6.74802e-14 NaN 0.00108765 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.0523389 NaN 0.0088256 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00190977 NaN 0.00455973 NaN 8.27212e-13 NaN 0.0133331 NaN yield of dead reserve on food
Y_CX mol/mol 0.821912 NaN 0.819256 NaN 0.771465 NaN 0.801659 NaN yield of CO2 on food
Y_HX mol/mol 0.70097 NaN 0.698705 NaN 0.657946 NaN 0.683697 NaN yield of H2O on food
Y_OX mol/mol -0.966302 NaN -0.96318 NaN -0.906993 NaN -0.942491 NaN yield of O2 on food
Y_NX mol/mol 0.0666415 NaN 0.0664262 NaN 0.0625512 NaN 0.0649994 NaN yield of N-waste on food
mu_TX J/mol 463239 NaN 461697 NaN 433948 NaN 451479 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