Graptemys pseudogeographica: Population traits

at T = 27 °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: 2025/05/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.689491 0.689491 0.72936 0.72936 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000914819 0.000914819 0.000250988 0.000250988 spec pop growth rate
t2 d NaN NaN NaN NaN 757.687 757.687 2761.68 2761.68 population doubling time
a_b d 102.208 107.107 101.239 106.091 95.9983 100.563 95.9983 100.563 age at birth
t_p d 12384.4 2776.69 7242.79 2492.58 3140.24 1523.99 3140.24 1523.99 time since birth at puberty
S_b - 0.999998 0.999997 0.999998 0.999997 0.999998 0.999997 0.999998 0.999997 survival probability at birth
S_p - 0.999988 0.999981 0.730089 0.786278 0.99999 0.999985 0.66482 0.721923 survival probability at puberty
theta_0b - 0.00677368 0.00784785 0.0761316 0.0571875 0.0840947 0.0879399 0.185787 0.15277 frac of ind that is embryo
theta_bp - 0.0067838 0.0078624 0.0650604 0.0507455 0.0771065 0.0803158 0.147941 0.12666 fraction of individuals that is juvenile
theta_pi - 0.986443 0.98429 0.858808 0.892067 0.838799 0.831744 0.666272 0.720571 frac of ind that is adult
L_bi cm 6.92488 5.27518 5.82711 4.75626 4.94653 4.10782 4.62476 4.15268 mean structural length of post-natals
L2_bi cm^2 49.7095 28.691 39.4682 24.9887 29.4005 19.4728 28.919 21.4582 mean squared structural length of post-natals
L3_bi cm^3 363.791 158.901 288.408 139.035 200.351 103.535 223.862 130.369 mean cubed structural length of post-natals
Ww_bi g 451.942 188.118 362.334 166.077 270.762 131.145 302.535 165.135 mean wet weight of post-natals
L_pi cm 6.95915 5.30214 6.12142 4.91851 5.21729 4.31579 5.20992 4.54035 mean structural length of adults
L2_pi cm^2 50.0254 28.8913 42.1719 26.2037 31.7337 20.9836 34.4585 24.5621 mean squared structural length of adults
L3_pi cm^3 366.242 160.116 309.698 146.55 218.024 112.808 271.802 151.979 mean cubed structural length of adults
Ww_pi g 454.988 189.555 389.082 175.053 294.647 142.89 367.324 192.507 mean wet weight of adults
R 1/d 0 0.0058485 0 0.00535299 0 0.005626 0 0.00747292 mean reproduction rate of adults
J_X g/d 1.31576 0.576244 1.10509 0.530906 1.12866 0.567231 1.11018 0.625065 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 0.162392 0.166979 0.0506104 0.0523484 yield of living structure on food
Y_VX_d mol/mol 0.0230357 0.0253655 0.0494164 0.0516131 0.00063492 0.000857223 0.0866469 0.0848591 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0570708 0.0445282 0.0177865 0.0139597 yield of living reserve on food
Y_EX_d mol/mol 0.00558185 0.00466385 0.0126667 0.0100386 0.000223135 0.000228595 0.0304511 0.0226293 yield of dead reserve on food
Y_CX mol/mol 0.700381 0.699234 0.67319 0.673541 0.544622 0.550901 0.572918 0.582423 yield of CO2 on food
Y_HX mol/mol 0.744679 0.743459 0.715768 0.716141 0.579068 0.585744 0.609154 0.61926 yield of H2O on food
Y_OX mol/mol -0.888945 -0.887489 -0.854434 -0.854879 -0.691251 -0.69922 -0.727166 -0.739229 yield of O2 on food
Y_NX mol/mol 0.161626 0.161362 0.155352 0.155432 0.125682 0.127131 0.132212 0.134405 yield of N-waste on food
mu_TX J/mol 450025 449378 433244 433587 353342 357761 370889 377213 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