Thamnophis butleri: Population traits

at T = 15 °C with background hazards for embryo, juv, adult: 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 std f_min f_max date: 2022/12/25
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.626876 0.626876 0.644124 0.644124 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00290765 0.00290765 0.00113346 0.00113346 spec pop growth rate
t2 d NaN NaN NaN NaN 238.388 238.388 611.534 611.534 population doubling time
a_b d 105.065 103.779 104.701 103.433 99.4899 98.506 99.4899 98.506 age at birth
t_p d 3280.69 4869.8 2329.04 2618.55 720.174 779.579 720.174 779.579 time since birth at puberty
S_b - 0.999996 0.999996 0.999996 0.999997 0.999997 0.999997 0.999997 0.999997 survival probability at birth
S_p - 0.999972 0.999976 0.596116 0.565061 0.999979 0.999982 0.475688 0.455043 survival probability at puberty
theta_0b - 0.0188763 0.0179547 0.0760648 0.0847183 0.251272 0.249113 0.354017 0.3705 frac of ind that is embryo
theta_bp - 0.0188842 0.0179616 0.0580544 0.0629215 0.188199 0.187113 0.216904 0.222374 fraction of individuals that is juvenile
theta_pi - 0.962239 0.964084 0.865881 0.85236 0.560529 0.563774 0.42908 0.407126 frac of ind that is adult
L_bi cm 2.05854 2.262 2.03451 2.21328 2.01272 2.12133 2.00313 2.07135 mean structural length of post-natals
L2_bi cm^2 4.27604 5.17136 4.23507 5.0456 4.46532 5.02388 4.59824 5.02372 mean squared structural length of post-natals
L3_bi cm^3 8.9362 11.9038 8.94662 11.7123 10.7282 13.0021 11.7561 13.7986 mean cubed structural length of post-natals
Ww_bi g 20.9367 29.5277 21.2917 29.53 33.7105 43.7101 36.9403 46.3875 mean wet weight of post-natals
L_pi cm 2.07658 2.28251 2.09498 2.29166 2.27561 2.41093 2.40485 2.53418 mean structural length of adults
L2_pi cm^2 4.33436 5.24243 4.43254 5.31952 5.45107 6.16718 6.17594 6.93879 mean squared structural length of adults
L3_pi cm^3 9.08213 12.0958 9.44742 12.4619 13.6847 16.6466 16.7756 20.2944 mean cubed structural length of adults
Ww_pi g 21.2786 30.0041 22.4835 31.4199 43.0003 55.962 52.7128 68.2251 mean wet weight of adults
R 1/d 0 0 0.000222788 0 0.00681496 0.00635755 0.00991655 0.00983879 mean reproduction rate of adults
J_X g/d 0.271359 0.361809 0.276154 0.362723 0.452037 0.560702 0.465493 0.560685 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0690073 0.0674254 0.0286256 0.0278946 yield of living structure on food
Y_VX_d mol/mol 0.0065705 0.00635222 0.0128859 0.0128767 0.000106253 9.40868e-05 0.0357352 0.036206 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.147829 0.159243 0.0613226 0.0658805 yield of living reserve on food
Y_EX_d mol/mol 0.00882359 0.00940469 0.0177808 0.0195889 0.000227617 0.000222211 0.076553 0.0855101 yield of dead reserve on food
Y_CX mol/mol 0.711125 0.71083 0.698716 0.697255 0.547182 0.539208 0.559316 0.548546 yield of CO2 on food
Y_HX mol/mol 0.756102 0.755789 0.742908 0.741354 0.58179 0.573311 0.594691 0.583241 yield of H2O on food
Y_OX mol/mol -0.902582 -0.902208 -0.886832 -0.884977 -0.6945 -0.684379 -0.709901 -0.696232 yield of O2 on food
Y_NX mol/mol 0.164106 0.164038 0.161242 0.160905 0.126273 0.124433 0.129073 0.126588 yield of N-waste on food
mu_TX J/mol 456353 456146 448409 447436 350350 344962 358189 351007 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