Nerodia sipedon: Population traits

at T = 20 °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: 2023/01/02
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.484907 0.484907 0.508744 0.508744 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00202951 0.00202951 0.000936737 0.000936737 spec pop growth rate
t2 d NaN NaN NaN NaN 341.534 341.534 739.959 739.959 population doubling time
a_b d 227.223 239.235 225.333 237.225 201.172 211.085 201.172 211.085 age at birth
t_p d 5514.02 4.92936e+22 4076.15 4.92936e+22 1037.35 1558.91 1037.35 1558.91 time since birth at puberty
S_b - 0.999888 0.999827 0.999891 0.999831 0.99992 0.999878 0.99992 0.999878 survival probability at birth
S_p - 0.999262 0.998791 0.772161 0.856105 0.999541 0.999257 0.596095 0.668549 survival probability at puberty
theta_0b - 0.035123 0.0435979 0.0988699 0.0807875 0.335722 0.349301 0.379888 0.346789 frac of ind that is embryo
theta_bp - 0.0351604 0.0436596 0.0867651 0.0747599 0.223263 0.227675 0.244054 0.233574 fraction of individuals that is juvenile
theta_pi - 0.929717 0.912742 0.814365 0.844453 0.441015 0.423024 0.376058 0.419637 frac of ind that is adult
L_bi cm 2.70342 2.0924 2.59855 2.10504 2.45942 2.18471 2.44935 2.25407 mean structural length of post-natals
L2_bi cm^2 7.49104 4.42675 7.0641 4.50907 6.6404 5.06297 6.78035 5.50434 mean squared structural length of post-natals
L3_bi cm^3 21.1536 9.45586 19.8995 9.80738 19.736 12.4902 21.4052 14.6381 mean cubed structural length of post-natals
Ww_bi g 39.7538 15.653 38.257 16.5508 55.5235 29.3711 60.2195 34.4221 mean wet weight of post-natals
L_pi cm 2.74457 2.11753 2.70288 2.15215 2.82374 2.45464 2.91704 2.57452 mean structural length of adults
L2_pi cm^2 7.67554 4.521 7.53697 4.68911 8.46123 6.258 9.23043 6.99495 mean squared structural length of adults
L3_pi cm^3 21.7936 9.72392 21.5653 10.3306 27.0168 16.6201 31.8876 20.1277 mean cubed structural length of adults
Ww_pi g 40.9566 16.0967 41.4597 17.4338 76.0068 39.0828 89.71 47.3311 mean wet weight of adults
R 1/d 0 0 0 0 0.00477065 0 0.0060216 0.000765917 mean reproduction rate of adults
J_X g/d 0.267246 0.117709 0.264403 0.125792 0.488545 0.277633 0.498841 0.301835 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.0546875 0.0546875 0.0546875 0.0546875 0.0546875 0.0546875 0.0546875 0.0546875 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0819872 0.0913041 0.0401951 0.045429 yield of living structure on food
Y_VX_d mol/mol 0.0167719 0.0188729 0.0274938 0.0275312 0.000498719 0.000755823 0.0436347 0.0419236 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.148669 0.123401 0.0728865 0.0613989 yield of living reserve on food
Y_EX_d mol/mol 0.0147473 0.0123687 0.0253634 0.0189301 0.000904335 0.00102152 0.0791235 0.0566613 yield of dead reserve on food
Y_CX mol/mol 0.742457 0.742683 0.72512 0.730317 0.579519 0.592175 0.576447 0.601169 yield of CO2 on food
Y_HX mol/mol 0.789416 0.789656 0.770982 0.776508 0.616172 0.629628 0.612906 0.639191 yield of H2O on food
Y_OX mol/mol -0.942349 -0.942636 -0.920345 -0.92694 -0.735543 -0.751606 -0.731644 -0.763022 yield of O2 on food
Y_NX mol/mol 0.171336 0.171388 0.167335 0.168535 0.133735 0.136656 0.133026 0.138731 yield of N-waste on food
mu_TX J/mol 473892 474147 462887 466348 368716 377619 366738 383371 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