Natrix natrix: Population traits

at T = 26 °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 - 0.496977 0.496977 0.533012 0.533012 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00370981 0.00370981 0.001076 0.001076 spec pop growth rate
t2 d NaN NaN NaN NaN 186.842 186.842 644.188 644.188 population doubling time
a_b d 97.2463 217.317 96.1873 214.467 88.0734 191.72 88.0734 191.72 age at birth
t_p d 2954.04 NaN 1755.49 NaN 576.059 NaN 576.059 NaN time since birth at puberty
S_b - 0.999976 0.999728 0.999977 0.999738 0.999982 0.999813 0.999982 0.999813 survival probability at birth
S_p - 0.999856 0.99744 0.578862 0.992414 0.999904 0.998654 0.447614 0.694097 survival probability at puberty
theta_0b - 0.0230201 0.078527 0.148437 0.0763682 0.278877 0.509946 0.393378 0.322871 frac of ind that is embryo
theta_bp - 0.0230324 0.078619 0.112324 0.0762235 0.201196 0.250374 0.239507 0.218639 fraction of individuals that is juvenile
theta_pi - 0.953947 0.842854 0.739239 0.847408 0.519927 0.23968 0.367115 0.45849 frac of ind that is adult
L_bi cm 2.93911 1.84014 2.6234 1.94298 2.26751 2.40966 2.224 2.68138 mean structural length of post-natals
L2_bi cm^2 8.94703 3.38692 7.69283 3.77518 6.14238 5.92473 6.54797 7.42898 mean squared structural length of post-natals
L3_bi cm^3 27.8168 6.23543 24.1023 7.33517 19.4367 14.8787 24.6083 21.2373 mean cubed structural length of post-natals
Ww_bi g 52.8246 9.28904 47.3417 11.1878 54.5972 29.5402 69.124 42.1645 mean wet weight of post-natals
L_pi cm 2.98203 1.83376 2.84607 1.94393 2.65875 2.69467 2.8707 2.93894 mean structural length of adults
L2_pi cm^2 9.13029 3.3631 8.6567 3.77887 7.90025 7.33101 9.81506 8.77913 mean squared structural length of adults
L3_pi cm^3 28.45 6.16866 27.5241 7.34589 26.1599 20.1453 39.3906 26.6441 mean cubed structural length of adults
Ww_pi g 54.027 9.18957 54.063 11.2041 73.4823 39.9963 110.647 52.899 mean wet weight of adults
R 1/d 0 0 0 0 0.00367111 0 0.0158412 0 mean reproduction rate of adults
J_X g/d 0.438455 0.090413 0.404328 0.108085 0.605685 0.318242 0.645679 0.399042 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 0.11905 0.173444 0.0410089 0.0572656 yield of living structure on food
Y_VX_d mol/mol 0.0198062 0.0262256 0.0391999 0.0263237 0.000366536 0.00110652 0.0644198 0.0452174 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.215357 0.170911 0.0741838 0.0564292 yield of living reserve on food
Y_EX_d mol/mol 0.0178061 0.0128432 0.0377966 0.0138259 0.000663051 0.00109036 0.116533 0.044557 yield of dead reserve on food
Y_CX mol/mol 0.693073 0.691889 0.661073 0.691011 0.451091 0.442059 0.483014 0.558314 yield of CO2 on food
Y_HX mol/mol 0.736908 0.73565 0.702885 0.734716 0.479621 0.470019 0.513564 0.593626 yield of H2O on food
Y_OX mol/mol -0.879669 -0.878167 -0.839054 -0.877053 -0.572538 -0.561075 -0.613057 -0.708629 yield of O2 on food
Y_NX mol/mol 0.15994 0.159667 0.152555 0.159464 0.104098 0.102014 0.111465 0.128842 yield of N-waste on food
mu_TX J/mol 444998 444532 424667 443952 288901 285646 309452 359429 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