Trichechus inunguis: Population traits

at T = 36.4 °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 - 0.810799 0.810799 0.846316 0.846316 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000471278 0.000471278 9.30638e-05 9.30638e-05 spec pop growth rate
t2 d NaN NaN NaN NaN 1470.78 1470.78 7448.09 7448.09 population doubling time
a_b d 273.659 NaN 273.659 273.659 273.659 273.659 273.659 273.659 age at birth
t_x d 4355.4 NaN 2581.77 3162.53 1464.8 1544.26 1464.8 1544.26 time since birth at weaning
t_p d 449.379 NaN 427.994 439.806 365.16 372.753 365.16 372.753 time since birth at puberty
S_b - 1 NaN 1 1 1 1 1 1 survival probability at birth
S_x - 1 NaN 0.493317 0.499919 1 1 0.452711 0.458168 survival probability at weaning
S_p - 0.999886 NaN 0.145603 0.145911 0.999997 0.999996 0.143715 0.143967 survival probability at puberty
theta_0b - 0.00838172 NaN 0.0586724 0.0571112 0.121037 0.12104 0.182634 0.177976 frac of ind that is embryo
theta_bx - 0.0083804 NaN 0.0405395 0.039724 0.106376 0.106378 0.118073 0.115742 fraction of individuals that is baby
theta_xp - 0.124994 NaN 0.107257 0.125562 0.331956 0.348164 0.169277 0.175083 fraction of individuals that is juvenile
theta_pi - 0.858244 NaN 0.793532 0.777603 0.44063 0.424419 0.530015 0.531199 frac of ind that is adult
L_bi cm 34.2297 NaN 34.5031 33.7399 32.7062 32.1539 35.1342 34.5694 mean structural length of post-natals
L2_bi cm^2 1178.15 NaN 1215.91 1161.34 1148.93 1107.54 1337.32 1289.11 mean squared structural length of post-natals
L3_bi cm^3 40684.9 NaN 43340.6 40412.2 42348.1 39968.5 53233.6 50172.6 mean cubed structural length of post-natals
Ww_bi g 189208 NaN 208489 190697 233018 215594 292914 270636 mean wet weight of post-natals
L_pi cm 34.8591 NaN 36.3318 35.487 40.2109 39.5542 41.9545 41.0764 mean structural length of adults
L2_pi cm^2 1215.16 NaN 1320.05 1259.34 1622.74 1568.99 1763.8 1689.96 mean squared structural length of adults
L3_pi cm^3 42359.5 NaN 47963.2 44691.1 65711.9 62406.7 74289.3 69629.7 mean cubed structural length of adults
Ww_pi g 196996 NaN 230726 210888 361575 336627 408772 375589 mean wet weight of adults
R 1/d 3.56557e-05 NaN 0.000270083 0.000134701 0.000940295 0.000824987 0.00124292 0.00108341 mean reproduction rate of adults
J_X g/d 3270.84 NaN 3523.54 3284.4 3934.02 3701.07 4579.08 4307.82 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.765625 NaN 0.765625 0.765625 0.765625 0.765625 0.765625 0.765625 yield of faeces on food
Y_VX mol/mol 0 NaN 0 0 0.00507312 0.00508942 0.0010819 0.0010839 yield of living structure on food
Y_VX_d mol/mol 0.000400204 NaN 0.00093742 0.00094624 1.9591e-06 2.09944e-06 0.00182266 0.00182285 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 0 0.0228414 0.0223634 0.0048712 0.00476277 yield of living reserve on food
Y_EX_d mol/mol 0.00146097 NaN 0.00357202 0.00351887 8.82072e-06 9.22513e-06 0.00820642 0.00800975 yield of dead reserve on food
Y_CX mol/mol 0.215075 NaN 0.212626 0.212667 0.190966 0.191393 0.202013 0.202294 yield of CO2 on food
Y_HX mol/mol 0.183428 NaN 0.181338 0.181373 0.162866 0.16323 0.172288 0.172527 yield of H2O on food
Y_OX mol/mol -0.252859 NaN -0.249979 -0.250027 -0.224514 -0.225016 -0.237502 -0.237832 yield of O2 on food
Y_NX mol/mol 0.0174385 NaN 0.0172399 0.0172432 0.0154837 0.0155183 0.0163795 0.0164022 yield of N-waste on food
mu_TX J/mol 154369 NaN 152963 152988 140506 140756 146857 147021 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