Tandanus tandanus: Population traits

at T = 18 °C with background hazards for embryo, larva, juv, adult: 0, 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 abj f_minf f_max date: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.398344 0.426794 0.713397 0.713397 1 1 scaled functional response
r 1/d 0 0 0.00647457 0.00105462 0.00905503 0.00145858 spec pop growth rate
t2 d NaN NaN 107.057 657.251 76.5483 475.22 population doubling time
a_b d 10.4451 10.3326 9.57839 9.57839 9.16647 9.16647 age at birth
t_j d 4.63183 4.39825 3.09468 3.09468 2.54364 2.54364 time since birth at metam
t_p d 3839.67 2635.68 1062.95 1062.95 773.416 773.416 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 1 1 survival probability at birth
S_j - 0.999998 0.631089 0.999999 0.629565 0.999999 0.628957 survival probability at metam
S_p - 0.999997 0.43366 0.999998 0.360135 0.999998 0.320276 survival probability at puberty
theta_0b - 0.00276383 0.295216 0.0600697 0.395187 0.0795638 0.437967 frac of ind that is embryo
theta_bj - 0.00122777 0.100887 0.0186527 0.101701 0.0209615 0.0965725 frac of ind between b and j
theta_jp - 0.00154093 0.0888349 0.0378884 0.126085 0.0523651 0.140107 frac of ind between j and p
theta_pi - 0.994467 0.515062 0.883389 0.377027 0.84711 0.325354 frac of ind that is adult
L_bi cm 4.57733 1.08153 1.47541 0.658979 1.36547 0.625881 mean structural length of post-natals
L2_bi cm^2 23.081 3.65406 3.5079 1.47643 3.08673 1.36026 mean squared structural length of post-natals
L3_bi cm^3 121.051 17.8437 11.1792 7.17431 9.65634 7.17562 mean cubed structural length of post-natals
Ww_bi g 173.612 26.1449 19.8724 12.7532 20.182 14.9972 mean wet weight of post-natals
L_pi cm 4.58952 1.40808 1.55635 0.934193 1.46478 0.929198 mean structural length of adults
L2_pi cm^2 23.1451 4.98587 3.72953 2.34301 3.34971 2.31737 mean squared structural length of adults
L3_pi cm^3 121.388 24.4136 11.8941 11.5034 10.4913 12.3885 mean cubed structural length of adults
Ww_pi g 174.096 35.7712 21.1432 20.4487 21.927 25.8922 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 1.00318 0.170171 0.27331 0.115002 0.33722 0.148564 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 yield of faeces on food
Y_VX mol/mol 0 0 0.26483 0.0657912 0.259292 0.0704494 yield of living structure on food
Y_VX_d mol/mol 0.0486742 0.101596 0.000422651 0.141553 0.000186956 0.143589 yield of dead structure on food
Y_EX mol/mol 0 0 0.205938 0.0511606 0.282635 0.0767917 yield of living reserve on food
Y_EX_d mol/mol 0.0211346 0.0472641 0.000328662 0.110075 0.000203786 0.156516 yield of dead reserve on food
Y_CX mol/mol 0.820816 0.741765 0.419106 0.522046 0.348307 0.443279 yield of CO2 on food
Y_HX mol/mol 0.590532 0.533659 0.301523 0.375583 0.250588 0.318915 yield of H2O on food
Y_OX mol/mol -0.892638 -0.806669 -0.455778 -0.567725 -0.378784 -0.482066 yield of O2 on food
Y_NX mol/mol 0.123122 0.111265 0.0628659 0.0783068 0.0522461 0.0664918 yield of N-waste on food
mu_TX J/mol 436539 395707 226427 280149 187199 237162 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female are the same.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer