Thamnophis gigas: 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: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.735647 0.735647 0.76061 0.76061 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0018429 0.0018429 0.000712295 0.000712295 spec pop growth rate
t2 d NaN NaN NaN NaN 376.118 376.118 973.119 973.119 population doubling time
a_b d 193.107 199.413 192.475 198.647 187.81 192.94 187.81 192.94 age at birth
t_p d 4232.13 9.02939e+21 2939.03 9.02939e+21 1430.42 3656.55 1430.42 3656.55 time since birth at puberty
S_b - 0.999969 0.999954 0.99997 0.999955 0.999972 0.999959 0.999972 0.999959 survival probability at birth
S_p - 0.9998 0.999672 0.46927 0.54881 0.999829 0.999731 0.415178 0.47491 survival probability at puberty
theta_0b - 0.036237 0.0425566 0.1946 0.153925 0.293246 0.300321 0.422347 0.376261 frac of ind that is embryo
theta_bp - 0.0362428 0.0425644 0.131302 0.11235 0.20747 0.210475 0.236979 0.224485 fraction of individuals that is juvenile
theta_pi - 0.92752 0.914879 0.674099 0.733725 0.499284 0.489205 0.340674 0.399254 frac of ind that is adult
L_bi cm 4.32232 3.27897 3.89906 3.14429 3.39492 2.92838 3.25814 2.95629 mean structural length of post-natals
L2_bi cm^2 19.2208 10.9518 16.5124 10.3183 13.0072 9.31225 12.6091 9.76029 mean squared structural length of post-natals
L3_bi cm^3 86.9745 37.0455 73.5317 34.8642 55.0392 31.7713 56.2268 35.2978 mean cubed structural length of post-natals
Ww_bi g 406.713 138.111 353.024 133.206 330.085 149.595 337.208 166.2 mean wet weight of post-natals
L_pi cm 4.41436 3.34506 4.28218 3.3435 3.95749 3.34989 4.13888 3.54055 mean structural length of adults
L2_pi cm^2 19.819 11.2996 18.9928 11.374 16.6538 11.6665 18.5752 13.1575 mean squared structural length of adults
L3_pi cm^3 90.066 38.4644 86.3984 39.2219 74.2096 42.1486 89.5699 51.0432 mean cubed structural length of adults
Ww_pi g 421.169 143.401 414.797 149.856 445.056 198.456 537.176 240.337 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 2.6968 1.14032 2.39541 1.11081 2.4808 1.31804 2.40488 1.38145 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 0.0408867 0.0444231 0.0166537 0.0182 yield of living structure on food
Y_VX_d mol/mol 0.00779897 0.00866425 0.0154474 0.0160848 0.000374487 0.000542824 0.0239956 0.0239871 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.204322 0.164743 0.0832231 0.0674947 yield of living reserve on food
Y_EX_d mol/mol 0.0286708 0.0236373 0.0587153 0.0453709 0.00187141 0.00201306 0.119913 0.0889561 yield of dead reserve on food
Y_CX mol/mol 0.694001 0.697388 0.663376 0.6737 0.522576 0.551609 0.525557 0.562239 yield of CO2 on food
Y_HX mol/mol 0.737895 0.741496 0.705333 0.71631 0.555628 0.586497 0.558798 0.5978 yield of H2O on food
Y_OX mol/mol -0.880848 -0.885146 -0.841977 -0.855081 -0.66327 -0.700119 -0.667053 -0.713612 yield of O2 on food
Y_NX mol/mol 0.160154 0.160936 0.153087 0.155469 0.120594 0.127294 0.121282 0.129748 yield of N-waste on food
mu_TX J/mol 445016 447314 425012 431917 332578 352089 334532 359027 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