Heterodon platirhinos: Population traits

at T = 25 °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: 2023/04/09
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.613564 0.613564 0.703371 0.703371 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00241239 0.00241239 0.000433466 0.000433466 spec pop growth rate
t2 d NaN NaN NaN NaN 287.328 287.328 1599.08 1599.08 population doubling time
a_b d 54.3911 52.6339 53.1347 51.4424 50.1133 48.6012 50.1133 48.6012 age at birth
t_p d 3077.01 1261.24 1469.36 945.531 730.621 568.148 730.621 568.148 time since birth at puberty
S_b - 0.999995 0.999996 0.999995 0.999996 0.999996 0.999997 0.999996 0.999997 survival probability at birth
S_p - 0.999969 0.999977 0.665679 0.623005 0.999977 0.999983 0.58894 0.549783 survival probability at puberty
theta_0b - 0.0105121 0.00948186 0.104982 0.125226 0.113973 0.110702 0.216258 0.243571 frac of ind that is embryo
theta_bp - 0.0105251 0.00949185 0.0855549 0.0986946 0.101072 0.0985208 0.162268 0.176679 fraction of individuals that is juvenile
theta_pi - 0.978963 0.981026 0.809463 0.776079 0.784956 0.790777 0.621474 0.57975 frac of ind that is adult
L_bi cm 4.06301 4.90885 3.65282 4.15655 3.20324 3.62244 3.30775 3.54222 mean structural length of post-natals
L2_bi cm^2 17.1239 25.0929 15.5736 21.098 12.3686 16.2701 14.9128 18.3067 mean squared structural length of post-natals
L3_bi cm^3 73.6638 131.026 71.9848 117.866 54.9453 85.3014 81.8708 119.416 mean cubed structural length of post-natals
Ww_bi g 94.8023 176.604 95.665 164.867 80.6428 133.663 120.161 187.119 mean wet weight of post-natals
L_pi cm 4.09288 4.94368 3.90229 4.51801 3.44253 3.90282 3.82357 4.20878 mean structural length of adults
L2_pi cm^2 17.2903 25.3191 17.0424 23.5603 13.727 18.0609 18.3404 23.322 mean squared structural length of adults
L3_pi cm^3 74.4328 132.272 79.3626 132.562 61.7015 95.6 102.619 155.033 mean cubed structural length of adults
Ww_pi g 95.792 178.284 105.47 185.424 90.5588 149.8 150.613 242.929 mean wet weight of adults
R 1/d 0 0.0108182 0 0.0120751 0.000132029 0.010421 0.00780841 0.0207638 mean reproduction rate of adults
J_X g/d 0.62094 1.10301 0.647379 1.06315 0.730984 1.16563 0.881341 1.31153 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 0.181331 0.176541 0.0402661 0.0394674 yield of living structure on food
Y_VX_d mol/mol 0.0294011 0.027495 0.0616809 0.0592708 0.000968803 0.000780604 0.0850106 0.0837725 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0848069 0.100089 0.0188321 0.022376 yield of living reserve on food
Y_EX_d mol/mol 0.00843692 0.00956438 0.0202906 0.0236357 0.000453102 0.000442562 0.0397588 0.0474947 yield of dead reserve on food
Y_CX mol/mol 0.692889 0.693522 0.657031 0.656271 0.506241 0.497877 0.57424 0.566731 yield of CO2 on food
Y_HX mol/mol 0.736713 0.737386 0.698587 0.697779 0.53826 0.529367 0.61056 0.602575 yield of H2O on food
Y_OX mol/mol -0.879437 -0.88024 -0.833924 -0.83296 -0.642536 -0.631921 -0.728844 -0.719312 yield of O2 on food
Y_NX mol/mol 0.159898 0.160044 0.151623 0.151447 0.116825 0.114895 0.132517 0.130784 yield of N-waste on food
mu_TX J/mol 445356 445682 423101 422474 328756 322940 371170 366069 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