Eunectes murinus: Population traits

at T = 29 °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_minf f_max date: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.290705 0.29415 0.647075 0.647075 1 1 scaled functional response
r 1/d 0 0 0.00265773 0.00109569 0.00347761 0.00132485 spec pop growth rate
t2 d NaN NaN 260.804 632.611 199.317 523.191 population doubling time
a_b d 214.881 214.52 194.733 194.733 187.269 187.269 age at birth
t_p d 8038.96 5849.33 1156.56 1156.56 869.134 869.134 time since birth at puberty
S_b - 0.999994 0.999994 0.999996 0.999996 0.999996 0.999996 survival probability at birth
S_p - 0.999964 0.579208 0.999977 0.413955 0.999981 0.359103 survival probability at puberty
theta_0b - 0.0173602 0.102259 0.403992 0.496356 0.478577 0.552252 frac of ind that is embryo
theta_bp - 0.0173691 0.0772242 0.240822 0.259976 0.249567 0.261938 fraction of individuals that is juvenile
theta_pi - 0.965271 0.820517 0.355186 0.243668 0.271856 0.185809 frac of ind that is adult
L_bi cm 8.40346 7.78639 6.1599 5.85419 6.25262 5.93685 mean structural length of post-natals
L2_bi cm^2 71.9313 64.071 44.1072 42.1391 46.5361 44.9823 mean squared structural length of post-natals
L3_bi cm^3 622.616 544.439 365.059 376.477 412.971 449.09 mean cubed structural length of post-natals
Ww_bi g 2012.96 1774.62 2179.6 2247.77 3585.23 3898.8 mean wet weight of post-natals
L_pi cm 8.48898 8.17924 7.61445 7.90662 8.15936 8.57295 mean structural length of adults
L2_pi cm^2 72.9844 68.8654 62.9102 70.3473 72.9056 84.5669 mean squared structural length of adults
L3_pi cm^3 632.929 591.161 566.587 710.155 720.883 980.985 mean cubed structural length of adults
Ww_pi g 2046.3 1926.91 3382.83 4240.01 6258.39 8516.48 mean wet weight of adults
R 1/d 0 0 0.00381635 0.00817223 0.0106762 0.0173186 mean reproduction rate of adults
J_X g/d 12.0009 10.8162 16.3798 15.6489 26.7076 25.8159 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 0.0592332 0.0263598 0.0537731 0.0230469 yield of living structure on food
Y_VX_d mol/mol 0.00490609 0.0101502 1.67457e-05 0.0340016 7.59729e-06 0.0313472 yield of dead structure on food
Y_EX mol/mol 0 0 0.294421 0.131023 0.413062 0.177036 yield of living reserve on food
Y_EX_d mol/mol 0.0109556 0.0229348 8.32354e-05 0.169006 5.8359e-05 0.240795 yield of dead reserve on food
Y_CX mol/mol 0.710745 0.696751 0.436207 0.430816 0.344276 0.33995 yield of CO2 on food
Y_HX mol/mol 0.755698 0.740819 0.463797 0.458064 0.366051 0.361451 yield of H2O on food
Y_OX mol/mol -0.9021 -0.884338 -0.553648 -0.546804 -0.436966 -0.431475 yield of O2 on food
Y_NX mol/mol 0.164018 0.160789 0.100663 0.099419 0.0794483 0.07845 yield of N-waste on food
mu_TX J/mol 456017 446964 275985 272452 214517 211668 yield of heat on food

Remarks

  • Reprod-code Apf 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