Melursus ursinus: Population traits

at T = 38.1 °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: 2024/07/13
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.99547 0.99547 NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000614258 0.000614258 NaN NaN spec pop growth rate
t2 d NaN NaN NaN NaN 1128.43 1128.43 NaN NaN population doubling time
a_b d 26.5515 26.5515 NaN NaN 26.5515 26.5515 NaN NaN age at birth
t_x d 1880.81 659.668 NaN NaN 1280.41 649.521 NaN NaN time since birth at weaning
t_p d 76.0747 72.999 NaN NaN 75.9039 72.8491 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 - 1 1 NaN NaN 1 1 NaN NaN survival probability at puberty
theta_0b - 0.0020874 0.00192936 NaN NaN 0.0161854 0.0161818 NaN NaN frac of ind that is embryo
theta_bx - 0.00208738 0.00192934 NaN NaN 0.0159234 0.0159198 NaN NaN fraction of individuals that is baby
theta_xp - 0.145775 0.0460047 NaN NaN 0.520098 0.307837 NaN NaN fraction of individuals that is juvenile
theta_pi - 0.85005 0.950137 NaN NaN 0.447793 0.660061 NaN NaN frac of ind that is adult
L_bi cm 28.0773 30.6275 NaN NaN 25.6891 27.7816 NaN NaN mean structural length of post-natals
L2_bi cm^2 793.267 944.015 NaN NaN 689.08 809.223 NaN NaN mean squared structural length of post-natals
L3_bi cm^3 22474.3 29177.5 NaN NaN 18860.8 24088.9 NaN NaN mean cubed structural length of post-natals
Ww_bi g 99527.8 138302 NaN NaN 83819.8 114592 NaN NaN mean wet weight of post-natals
L_pi cm 28.5033 31.0617 NaN NaN 28.6229 31.0002 NaN NaN mean structural length of adults
L2_pi cm^2 812.437 964.853 NaN NaN 819.268 961.186 NaN NaN mean squared structural length of adults
L3_pi cm^3 23157.1 29971.5 NaN NaN 23449.8 29807.5 NaN NaN mean cubed structural length of adults
Ww_pi g 102552 142066 NaN NaN 104214 141796 NaN NaN mean wet weight of adults
R 1/d 9.79586e-05 0.0274523 NaN NaN 0.00134977 0.0268862 NaN NaN mean reproduction rate of adults
J_X g/d 1814.35 2355.32 NaN NaN 1583.22 2028.2 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 0.0073176 0.00729555 NaN NaN yield of living structure on food
Y_VX_d mol/mol 0.00100552 0.00092919 NaN NaN 4.60744e-06 2.54384e-06 NaN NaN yield of dead structure on food
Y_EX mol/mol 0 0 NaN NaN 0.0252027 0.0274098 NaN NaN yield of living reserve on food
Y_EX_d mol/mol 0.00344743 0.00347521 NaN NaN 1.58686e-05 9.55734e-06 NaN NaN yield of dead reserve on food
Y_CX mol/mol 0.819709 0.819754 NaN NaN 0.793728 0.791714 NaN NaN yield of CO2 on food
Y_HX mol/mol 0.699091 0.69913 NaN NaN 0.676933 0.675216 NaN NaN yield of H2O on food
Y_OX mol/mol -0.963712 -0.963765 NaN NaN -0.933167 -0.930799 NaN NaN yield of O2 on food
Y_NX mol/mol 0.0664629 0.0664665 NaN NaN 0.0643563 0.0641931 NaN NaN yield of N-waste on food
mu_TX J/mol 461993 462015 NaN NaN 447117 445939 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