Thamnophis radix: Population traits

at T = 18 °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 - 0.464897 0.464897 0.503103 0.503103 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0032001 0.0032001 0.0010101 0.0010101 spec pop growth rate
t2 d NaN NaN NaN NaN 216.602 216.602 686.213 686.213 population doubling time
a_b d 144.158 148.252 142.687 146.625 132.365 134.994 132.365 134.994 age at birth
t_p d 2441.39 NaN 1620.46 NaN 581.194 698.79 581.194 698.79 time since birth at puberty
S_b - 0.99995 0.999933 0.999952 0.999935 0.999961 0.99995 0.999961 0.99995 survival probability at birth
S_p - 0.999658 0.99951 0.56607 0.633309 0.999781 0.999704 0.412572 0.448594 survival probability at puberty
theta_0b - 0.0392029 0.0441964 0.151756 0.128243 0.345716 0.351357 0.434743 0.407627 frac of ind that is embryo
theta_bp - 0.0392136 0.0442095 0.112887 0.101022 0.226358 0.228123 0.24396 0.237578 fraction of individuals that is juvenile
theta_pi - 0.921583 0.911594 0.735357 0.770735 0.427926 0.42052 0.321296 0.354794 frac of ind that is adult
L_bi cm 2.03629 1.68522 2.00052 1.71279 2.00793 1.84328 2.01954 1.91363 mean structural length of post-natals
L2_bi cm^2 4.23261 2.87973 4.21965 3.02732 4.63183 3.80015 5.017 4.30967 mean squared structural length of post-natals
L3_bi cm^3 8.92273 4.97237 9.22431 5.47577 12.0773 8.66619 14.8985 11.1588 mean cubed structural length of post-natals
Ww_bi g 23.765 11.7122 25.8292 13.5079 55.2905 33.9334 68.2061 43.6935 mean wet weight of post-natals
L_pi cm 2.07529 1.71477 2.1355 1.79527 2.40925 2.18428 2.62499 2.39525 mean structural length of adults
L2_pi cm^2 4.35905 2.96305 4.67311 3.26957 6.24319 5.05068 7.67361 6.22742 mean squared structural length of adults
L3_pi cm^3 9.24165 5.15248 10.4196 6.02458 17.3848 12.3566 24.7556 17.4435 mean cubed structural length of adults
Ww_pi g 24.6144 12.1365 29.1761 14.8617 79.5884 48.3835 113.332 68.302 mean wet weight of adults
R 1/d 0 0 0.00127518 0 0.0135014 0.00674064 0.0219096 0.0131854 mean reproduction rate of adults
J_X g/d 0.236133 0.130913 0.254756 0.148933 0.555834 0.371601 0.602056 0.421424 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 0.0695326 0.0746303 0.0249961 0.0267463 yield of living structure on food
Y_VX_d mol/mol 0.0130232 0.0140339 0.0242777 0.0245782 0.00039159 0.000515251 0.0374051 0.0382254 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.248791 0.217593 0.0894374 0.0779819 yield of living reserve on food
Y_EX_d mol/mol 0.0216631 0.0190223 0.043703 0.0360526 0.00140113 0.00150227 0.133837 0.11145 yield of dead reserve on food
Y_CX mol/mol 0.69545 0.696775 0.668399 0.67437 0.463538 0.484562 0.491521 0.516929 yield of CO2 on food
Y_HX mol/mol 0.739436 0.740844 0.710673 0.717023 0.492856 0.51521 0.522609 0.549624 yield of H2O on food
Y_OX mol/mol -0.882687 -0.884368 -0.848352 -0.855931 -0.588337 -0.615021 -0.623854 -0.656103 yield of O2 on food
Y_NX mol/mol 0.160488 0.160794 0.154246 0.155624 0.10697 0.111822 0.113428 0.119291 yield of N-waste on food
mu_TX J/mol 446242 447174 428797 432787 294712 308968 312963 330005 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