Eunectes notaeus: 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_min f_max date: 2022/12/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.533803 0.533803 0.542882 0.542882 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00270512 0.00270512 0.000987634 0.000987634 spec pop growth rate
t2 d NaN NaN NaN NaN 256.235 256.235 701.826 701.826 population doubling time
a_b d 193.818 198.223 193.381 197.741 180.445 183.338 180.445 183.338 age at birth
t_p d 4921.05 1882.18 3271.92 1736.76 805.898 596.302 805.898 596.302 time since birth at puberty
S_b - 0.999994 0.999993 0.999994 0.999993 0.999995 0.999994 0.999995 0.999994 survival probability at birth
S_p - 0.999964 0.999953 0.510996 0.55468 0.999974 0.999968 0.393714 0.418362 survival probability at puberty
theta_0b - 0.019736 0.0215019 0.126332 0.107543 0.386238 0.39103 0.482711 0.465255 frac of ind that is embryo
theta_bp - 0.0197412 0.0215086 0.0892539 0.0791872 0.237085 0.238158 0.25425 0.251568 fraction of individuals that is juvenile
theta_pi - 0.960523 0.95699 0.784414 0.81327 0.376677 0.370812 0.263039 0.283177 frac of ind that is adult
L_bi cm 8.47408 7.26267 7.82826 6.88953 6.09032 5.74832 5.91724 5.74223 mean structural length of post-natals
L2_bi cm^2 73.1761 53.5621 65.1288 49.5347 43.0943 37.6079 43.6115 39.8312 mean squared structural length of post-natals
L3_bi cm^3 638.973 398.855 560.716 365.502 349.822 277.418 395.877 329.73 mean cubed structural length of post-natals
Ww_bi g 1981.84 1112.49 1759.16 1030.58 1727.09 1207.27 1954.47 1434.92 mean wet weight of post-natals
L_pi cm 8.57391 7.3467 8.31399 7.22119 7.48867 7.00139 7.98639 7.53742 mean structural length of adults
L2_pi cm^2 74.4088 54.4849 71.0843 53.1679 60.6307 52.3566 71.7288 62.7172 mean squared structural length of adults
L3_pi cm^3 651.107 406.816 619.239 396.886 531.605 418.773 723.575 574.653 mean cubed structural length of adults
Ww_pi g 2019.48 1134.69 1942.77 1119.07 2624.56 1822.42 3572.33 2500.78 mean wet weight of adults
R 1/d 0 0.00180924 0 0.00154234 0 0.00493853 0.00392646 0.00939479 mean reproduction rate of adults
J_X g/d 11.449 7.13454 10.3633 6.71031 12.631 9.38441 12.7826 9.9392 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 0.0749195 0.0799675 0.030587 0.0327645 yield of living structure on food
Y_VX_d mol/mol 0.00664919 0.00702942 0.0140095 0.0142337 3.45576e-05 4.34723e-05 0.0411295 0.0420477 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.294962 0.268036 0.120423 0.10982 yield of living reserve on food
Y_EX_d mol/mol 0.013974 0.0125771 0.0299433 0.0259002 0.000136055 0.000145711 0.161929 0.140936 yield of dead reserve on food
Y_CX mol/mol 0.706876 0.707703 0.687921 0.691024 0.422966 0.440726 0.435953 0.459109 yield of CO2 on food
Y_HX mol/mol 0.751585 0.752463 0.731431 0.73473 0.449717 0.468601 0.463526 0.488146 yield of H2O on food
Y_OX mol/mol -0.897189 -0.898238 -0.873131 -0.877069 -0.536841 -0.559383 -0.553325 -0.582715 yield of O2 on food
Y_NX mol/mol 0.163125 0.163316 0.158751 0.159467 0.0976075 0.101706 0.100604 0.105948 yield of N-waste on food
mu_TX J/mol 453529 454098 441279 443356 267956 280031 276439 292008 yield of heat on food

Remarks

  • Reprod-code Apf 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