Varanus indicus: Population traits

at T = 28 °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: 2025/07/16
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.44555 0.532385 0.766193 0.766193 1 1 scaled functional response
r 1/d 0 0 0.00117282 0.0002099 0.00157793 0.000294046 spec pop growth rate
t2 d NaN NaN 591.007 3302.27 439.275 2357.28 population doubling time
a_b d 210.035 204.157 193.812 193.812 187.583 187.583 age at birth
t_p d 2749.13 1370.02 753.725 753.725 578.025 578.025 time since birth at puberty
S_b - 0.999975 0.999977 0.99998 0.99998 0.999982 0.999982 survival probability at birth
S_p - 0.999837 0.553876 0.999886 0.469103 0.999901 0.421295 survival probability at puberty
theta_0b - 0.0282911 0.14712 0.204033 0.287807 0.256525 0.355597 frac of ind that is embryo
theta_bp - 0.028303 0.108536 0.162576 0.188038 0.190822 0.217398 fraction of individuals that is juvenile
theta_pi - 0.943406 0.744344 0.633391 0.524155 0.552653 0.427005 frac of ind that is adult
L_bi cm 3.11765 3.23818 3.12004 3.3692 3.19833 3.44398 mean structural length of post-natals
L2_bi cm^2 9.93468 11.3297 11.0922 13.7106 12.0863 15.5184 mean squared structural length of post-natals
L3_bi cm^3 32.1137 41.5661 43.6431 63.1909 52.3036 84.2972 mean cubed structural length of post-natals
Ww_bi g 59.6632 84.1741 108.027 156.413 153.01 246.605 mean wet weight of post-natals
L_pi cm 3.16479 3.48225 3.4956 3.99406 3.71348 4.34785 mean structural length of adults
L2_pi cm^2 10.1606 12.6223 13.2264 17.6676 15.2388 21.9794 mean squared structural length of adults
L3_pi cm^3 32.9646 47.0565 53.6367 84.2578 68.5689 124.737 mean cubed structural length of adults
Ww_pi g 61.2439 95.2926 132.764 208.559 200.593 364.908 mean wet weight of adults
R 1/d 0 0.00154437 0.00273035 0.00531692 0.00424204 0.00858237 mean reproduction rate of adults
J_X g/d 0.280935 0.382826 0.539401 0.666729 0.767093 0.984924 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 0.0948936 0.0198938 0.10759 0.0251667 yield of living structure on food
Y_VX_d mol/mol 0.0191571 0.0377997 0.00114972 0.0464619 0.000591241 0.0507247 yield of dead structure on food
Y_EX mol/mol 0 0 0.139991 0.0293482 0.207156 0.0484564 yield of living reserve on food
Y_EX_d mol/mol 0.0164344 0.0387472 0.00169612 0.0685427 0.00113839 0.0976664 yield of dead reserve on food
Y_CX mol/mol 0.694715 0.661439 0.530477 0.590182 0.466496 0.543246 yield of CO2 on food
Y_HX mol/mol 0.738654 0.703273 0.564028 0.62751 0.496001 0.577605 yield of H2O on food
Y_OX mol/mol -0.881753 -0.839518 -0.673297 -0.749078 -0.592091 -0.689505 yield of O2 on food
Y_NX mol/mol 0.160319 0.15264 0.122418 0.136196 0.107653 0.125365 yield of N-waste on food
mu_TX J/mol 446059 424840 340576 378836 298594 348069 yield of heat on food

Remarks

  • Reprod-code O 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