Anaxyrus fowleri: Population traits

at T = 15 °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: 2025/06/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.751152 NaN 0.752056 0.752056 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00641891 0.00641891 0.00195796 0.00195796 spec pop growth rate
t2 d NaN NaN NaN NaN 107.985 107.985 354.014 354.014 population doubling time
a_b d 14.5269 NaN 14.5261 NaN 14.3414 14.4207 14.3414 14.4207 age at birth
t_p d 8770.49 NaN 5148.44 NaN 1137.39 1481.37 1137.39 1481.37 time since birth at puberty
S_b - 1 NaN 1 NaN 1 1 1 1 survival probability at birth
S_p - 1 NaN 0.3114 NaN 1 1 0.296548 0.302871 survival probability at puberty
theta_0b - 0.00106588 NaN 0.197438 NaN 0.0879231 0.0883883 0.465157 0.456635 frac of ind that is embryo
theta_bp - 0.00106623 NaN 0.10972 NaN 0.080214 0.0805959 0.246162 0.244073 fraction of individuals that is juvenile
theta_pi - 0.997868 NaN 0.692842 NaN 0.831863 0.831016 0.288681 0.299292 frac of ind that is adult
L_bi cm 1.28354 NaN 0.956952 NaN 0.546325 0.518822 0.260073 0.260502 mean structural length of post-natals
L2_bi cm^2 1.66426 NaN 1.17846 NaN 0.424291 0.375438 0.156633 0.150291 mean squared structural length of post-natals
L3_bi cm^3 2.16613 NaN 1.51439 NaN 0.402301 0.327902 0.159324 0.14056 mean cubed structural length of post-natals
Ww_bi g 18.8947 NaN 13.2238 NaN 4.53846 3.28588 1.79738 1.40854 mean wet weight of post-natals
L_pi cm 1.28481 NaN 1.09352 NaN 0.589239 0.559389 0.40032 0.395388 mean structural length of adults
L2_pi cm^2 1.66603 NaN 1.36363 NaN 0.464186 0.410842 0.282161 0.265256 mean squared structural length of adults
L3_pi cm^3 2.16844 NaN 1.75407 NaN 0.440984 0.359597 0.294365 0.254421 mean cubed structural length of adults
Ww_pi g 18.9149 NaN 15.3167 NaN 4.97487 3.60349 3.32082 2.54953 mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.264835 NaN 0.187755 NaN 0.0898857 0.0697861 0.0331827 0.0279359 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.0287291 0.0301604 0.00940102 0.00985152 yield of living structure on food
Y_VX_d mol/mol 0.000626367 NaN 0.001751 NaN 2.33541e-07 2.79436e-07 0.0174829 0.018201 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.295372 0.272075 0.0966545 0.0888698 yield of living reserve on food
Y_EX_d mol/mol 0.00483731 NaN 0.0135389 NaN 2.40111e-06 2.52077e-06 0.179746 0.16419 yield of dead reserve on food
Y_CX mol/mol 0.818774 NaN 0.809685 NaN 0.524032 0.544258 0.54329 0.563799 yield of CO2 on food
Y_HX mol/mol 0.699277 NaN 0.691515 NaN 0.447552 0.464826 0.463999 0.481515 yield of H2O on food
Y_OX mol/mol -0.962613 NaN -0.951927 NaN -0.616092 -0.639871 -0.638732 -0.662845 yield of O2 on food
Y_NX mol/mol 0.0663871 NaN 0.0656501 NaN 0.0424891 0.044129 0.0440505 0.0457134 yield of N-waste on food
mu_TX J/mol 461427 NaN 456169 NaN 290496 302394 301663 313714 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