Melanosuchus niger: Population traits

at T = 22 °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: 2025/02/09
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.976433 0.976433 0.980485 0.980485 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000499106 0.000499106 0.000105279 0.000105279 spec pop growth rate
t2 d NaN NaN NaN NaN 1388.78 1388.78 6583.92 6583.92 population doubling time
a_b d 90.6427 82.6179 90.5844 82.5753 90.3085 82.3739 90.3085 82.3739 age at birth
t_p d 16809.1 470.061 9756.89 468.72 6661.24 462.442 6661.24 462.442 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 0.999999 1 0.530816 0.422789 0.999999 1 0.527089 0.420099 survival probability at puberty
theta_0b - 0.00296403 0.00214798 0.12362 0.219439 0.0440755 0.0402729 0.213768 0.316036 frac of ind that is embryo
theta_bp - 0.00296605 0.00214904 0.0898919 0.142402 0.0421605 0.0386693 0.153507 0.202796 fraction of individuals that is juvenile
theta_pi - 0.99407 0.995703 0.786488 0.638158 0.913764 0.921058 0.632724 0.481167 frac of ind that is adult
L_bi cm 31.3277 60.1623 23.6004 34.994 19.4974 31.8202 16.1131 19.0064 mean structural length of post-natals
L2_bi cm^2 1003.94 3717.35 694.06 1910.5 457.348 1306.39 387.416 744.889 mean squared structural length of post-natals
L3_bi cm^3 32486.6 232089 21831.4 115402 11875.9 61053.3 11098 39083.3 mean cubed structural length of post-natals
Ww_bi g 81429.9 907400 54858.5 452580 30199.7 242988 28221.4 155549 mean wet weight of post-natals
L_pi cm 31.4076 60.2816 25.7873 41.7515 20.1873 32.9521 18.9372 25.0291 mean structural length of adults
L2_pi cm^2 1006.87 3725.32 771.089 2331.79 477.489 1360.23 476.513 1049.31 mean squared structural length of adults
L3_pi cm^3 32583.2 232590 24316.2 141129 12419.4 63611.4 13768.2 55509.4 mean cubed structural length of adults
Ww_pi g 81672.2 909357 61102.3 553476 31581.8 253169 35011.7 220924 mean wet weight of adults
R 1/d 0 3.05728 0 1.8706 0 0.95641 0 0.769702 mean reproduction rate of adults
J_X g/d 330.092 2360.58 229.151 1218.23 154.004 849.603 130.455 484.434 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 0.0384884 0.0358663 0.0089562 0.00849372 yield of living structure on food
Y_VX_d mol/mol 0.00359293 0.00287449 0.00913825 0.00754813 7.17488e-05 3.48025e-05 0.0177016 0.0170123 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0593852 0.106879 0.0138188 0.0253107 yield of living reserve on food
Y_EX_d mol/mol 0.00541302 0.00836392 0.0138246 0.022054 0.000110704 0.000103709 0.0273124 0.0506957 yield of dead reserve on food
Y_CX mol/mol 0.716315 0.714502 0.704976 0.699581 0.643962 0.60754 0.668554 0.641154 yield of CO2 on food
Y_HX mol/mol 0.761621 0.759692 0.749564 0.743828 0.684692 0.645965 0.710839 0.681706 yield of H2O on food
Y_OX mol/mol -0.90917 -0.906867 -0.894777 -0.88793 -0.817337 -0.771108 -0.84855 -0.813772 yield of O2 on food
Y_NX mol/mol 0.165304 0.164885 0.162687 0.161442 0.148607 0.140201 0.154282 0.147959 yield of N-waste on food
mu_TX J/mol 459660 458416 452388 448718 413245 388867 429020 410723 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