Dugong dugon: Population traits

at T = 33 °C with background hazards for embryo, baby, 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 stx f_min f_max date: 2023/04/11
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.943355 0.943355 0.967464 0.967464 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000215239 0.000215239 4.29312e-05 4.29312e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 3220.36 3220.36 16145.5 16145.5 population doubling time
a_b d 403.711 NaN 403.711 NaN 403.711 NaN 403.711 NaN age at birth
t_x d 6761.86 NaN 4340.4 NaN 3418.33 NaN 3418.33 NaN time since birth at weaning
t_p d 587.846 NaN 569.625 NaN 547.754 NaN 547.754 NaN time since birth at puberty
S_b - 1 NaN 1 NaN 1 NaN 1 NaN survival probability at birth
S_x - 1 NaN 0.519096 NaN 1 NaN 0.509619 NaN survival probability at weaning
S_p - 0.99972 NaN 0.160308 NaN 0.999975 NaN 0.160089 NaN survival probability at puberty
theta_0b - 0.0127023 NaN 0.0733861 NaN 0.0835505 NaN 0.125682 NaN frac of ind that is embryo
theta_bx - 0.0126994 NaN 0.0520545 NaN 0.0765803 NaN 0.0868938 NaN fraction of individuals that is baby
theta_xp - 0.199994 NaN 0.163339 NaN 0.402684 NaN 0.206738 NaN fraction of individuals that is juvenile
theta_pi - 0.774604 NaN 0.71122 NaN 0.437185 NaN 0.580686 NaN frac of ind that is adult
L_bi cm 44.3357 NaN 43.6186 NaN 41.0604 NaN 42.6605 NaN mean structural length of post-natals
L2_bi cm^2 1980.89 NaN 1950.8 NaN 1757.39 NaN 1901.69 NaN mean squared structural length of post-natals
L3_bi cm^3 88927.1 NaN 88510.7 NaN 77350.3 NaN 87018.6 NaN mean cubed structural length of post-natals
Ww_bi g 386704 NaN 392468 NaN 351915 NaN 395902 NaN mean wet weight of post-natals
L_pi cm 45.5442 NaN 46.644 NaN 47.5938 NaN 48.0169 NaN mean structural length of adults
L2_pi cm^2 2074.28 NaN 2175.71 NaN 2265.83 NaN 2305.97 NaN mean squared structural length of adults
L3_pi cm^3 94471.6 NaN 101488 NaN 107902 NaN 110758 NaN mean cubed structural length of adults
Ww_pi g 410815 NaN 450011 NaN 490914 NaN 503906 NaN mean wet weight of adults
R 1/d 4.06375e-05 NaN 0.000255391 NaN 0.000453001 NaN 0.000531198 NaN mean reproduction rate of adults
J_X g/d 4689.65 NaN 4736.45 NaN 4410.35 NaN 4772.49 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.765625 NaN 0.765625 NaN 0.765625 NaN 0.765625 NaN yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.00377494 NaN 0.000782779 NaN yield of living structure on food
Y_VX_d mol/mol 0.000642346 NaN 0.0014185 NaN 2.21224e-05 NaN 0.00173532 NaN yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.0133996 NaN 0.00277857 NaN yield of living reserve on food
Y_EX_d mol/mol 0.00215093 NaN 0.00487132 NaN 7.85263e-05 NaN 0.00615975 NaN yield of dead reserve on food
Y_CX mol/mol 0.214213 NaN 0.210979 NaN 0.200817 NaN 0.2062 NaN yield of CO2 on food
Y_HX mol/mol 0.182692 NaN 0.179934 NaN 0.171268 NaN 0.175858 NaN yield of H2O on food
Y_OX mol/mol -0.251845 NaN -0.248043 NaN -0.236096 NaN -0.242424 NaN yield of O2 on food
Y_NX mol/mol 0.0173686 NaN 0.0171064 NaN 0.0162825 NaN 0.0167189 NaN yield of N-waste on food
mu_TX J/mol 153877 NaN 152025 NaN 146202 NaN 149285 NaN 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