Cryptobranchus alleganiensis: 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 - 0.518022 0.518022 0.568564 0.568564 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0020074 0.0020074 0.00027539 0.00027539 spec pop growth rate
t2 d NaN NaN NaN NaN 345.296 345.296 2516.97 2516.97 population doubling time
a_b d 63.3819 63.3819 62.533 62.533 58.0594 58.0594 58.0594 58.0594 age at birth
t_p d 12349 2487.44 4936.61 2153.95 1911.71 1198.55 1911.71 1198.55 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_p - 0.999996 0.999996 0.487535 0.487535 0.999997 0.999997 0.405458 0.405458 survival probability at puberty
theta_0b - 0.0047259 0.0047259 0.233396 0.233396 0.109967 0.109967 0.367397 0.367397 frac of ind that is embryo
theta_bp - 0.00472952 0.00472952 0.16281 0.16281 0.0979329 0.0979329 0.230281 0.230281 fraction of individuals that is juvenile
theta_pi - 0.990545 0.990545 0.603794 0.603794 0.7921 0.7921 0.402322 0.402322 frac of ind that is adult
L_bi cm 4.63375 4.63375 2.31824 2.31824 1.98167 1.98167 1.44942 1.44942 mean structural length of post-natals
L2_bi cm^2 22.7716 22.7716 9.65607 9.65607 5.77294 5.77294 5.09985 5.09985 mean squared structural length of post-natals
L3_bi cm^3 114.712 114.712 48.8508 48.8508 21.7885 21.7885 30.6674 30.6674 mean cubed structural length of post-natals
Ww_bi g 185.639 185.639 82.0026 82.0026 47.7952 47.7952 67.2717 67.2717 mean wet weight of post-natals
L_pi cm 4.65366 4.65366 2.81991 2.81991 2.1658 2.1658 2.00556 2.00556 mean structural length of adults
L2_pi cm^2 22.8793 22.8793 12.2027 12.2027 6.45622 6.45622 7.88598 7.88598 mean squared structural length of adults
L3_pi cm^3 115.259 115.259 61.9964 61.9964 24.4669 24.4669 48.155 48.155 mean cubed structural length of adults
Ww_pi g 186.525 186.525 104.069 104.069 53.6704 53.6704 105.632 105.632 mean wet weight of adults
R 1/d 0 0.0414872 0 0.00714163 0 0 0 0.00387281 mean reproduction rate of adults
J_X g/d 0.433987 0.433987 0.201983 0.201983 0.212389 0.212389 0.187625 0.187625 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 0.205935 0.205935 0.0450125 0.0450125 yield of living structure on food
Y_VX_d mol/mol 0.026031 0.026031 0.0595544 0.0595544 0.000154048 0.000154048 0.0936011 0.0936011 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.245803 0.245803 0.0537266 0.0537266 yield of living reserve on food
Y_EX_d mol/mol 0.0160952 0.0160952 0.0404156 0.0404156 0.00018387 0.00018387 0.111722 0.111722 yield of dead reserve on food
Y_CX mol/mol 0.784861 0.784861 0.731356 0.731356 0.405658 0.405658 0.542571 0.542571 yield of CO2 on food
Y_HX mol/mol 0.670314 0.670314 0.624617 0.624617 0.346454 0.346454 0.463385 0.463385 yield of H2O on food
Y_OX mol/mol -0.922742 -0.922742 -0.859837 -0.859837 -0.476922 -0.476922 -0.637888 -0.637888 yield of O2 on food
Y_NX mol/mol 0.0636374 0.0636374 0.0592991 0.0592991 0.0328912 0.0328912 0.0439922 0.0439922 yield of N-waste on food
mu_TX J/mol 442868 442868 413260 413260 230150 230150 306830 306830 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