Crotalus lepidus: Population traits

at T = 26 °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: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.596509 0.635474 0.817737 0.817737 1 1 scaled functional response
r 1/d 0 0 0.000518276 0.000149048 0.000818381 0.000229373 spec pop growth rate
t2 d NaN NaN 1337.41 4650.49 846.974 3021.93 population doubling time
a_b d 195.792 193.598 185.218 185.218 178.969 178.969 age at birth
t_p d 4338.04 2762.07 1307.83 1307.83 919.265 919.265 time since birth at puberty
S_b - 0.999998 0.999998 0.999998 0.999998 0.999998 0.999998 survival probability at birth
S_p - 0.999986 0.77308 0.999989 0.70049 0.99999 0.646199 survival probability at puberty
theta_0b - 0.0104719 0.0374973 0.0917471 0.121854 0.136254 0.181501 frac of ind that is embryo
theta_bp - 0.0104875 0.0329169 0.0834299 0.0990198 0.117779 0.139766 fraction of individuals that is juvenile
theta_pi - 0.979041 0.929586 0.824823 0.779126 0.745967 0.678733 frac of ind that is adult
L_bi cm 3.05979 3.14419 3.17738 3.36282 3.26842 3.50453 mean structural length of post-natals
L2_bi cm^2 9.43692 10.0849 10.7446 12.1833 11.7006 13.8857 mean squared structural length of post-natals
L3_bi cm^3 29.2689 32.7844 38.1386 46.4876 45.1015 60.083 mean cubed structural length of post-natals
Ww_bi g 37.862 43.0383 53.4883 65.1975 67.2995 89.6545 mean wet weight of post-natals
L_pi cm 3.07388 3.19347 3.31608 3.56165 3.49282 3.8481 mean structural length of adults
L2_pi cm^2 9.50535 10.3331 11.5006 13.3196 13.0071 16.0481 mean squared structural length of adults
L3_pi cm^3 29.5254 33.754 41.3957 51.6507 51.2156 71.1655 mean cubed structural length of adults
Ww_pi g 38.1937 44.3111 58.0563 72.4386 76.4228 106.192 mean wet weight of adults
R 1/d 2.95214e-05 0.000317493 0.0011002 0.00160353 0.00199536 0.00298021 mean reproduction rate of adults
J_X g/d 0.140382 0.15982 0.219112 0.248452 0.29179 0.346282 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.0546875 0.0546875 0.0546875 0.0546875 0.0546875 0.0546875 yield of faeces on food
Y_VX mol/mol 0 0 0.090211 0.0278882 0.126496 0.0397981 yield of living structure on food
Y_VX_d mol/mol 0.0123033 0.0232915 0.000598479 0.038966 0.000240773 0.0532871 yield of dead structure on food
Y_EX mol/mol 0 0 0.0363074 0.0112242 0.0622585 0.0195878 yield of living reserve on food
Y_EX_d mol/mol 0.0036121 0.00728478 0.000240871 0.0156827 0.000118503 0.0262267 yield of dead reserve on food
Y_CX mol/mol 0.755135 0.743223 0.664588 0.691885 0.614411 0.65521 yield of CO2 on food
Y_HX mol/mol 0.802896 0.79023 0.706622 0.735646 0.653272 0.696651 yield of H2O on food
Y_OX mol/mol -0.958441 -0.943322 -0.843516 -0.878162 -0.77983 -0.831613 yield of O2 on food
Y_NX mol/mol 0.174262 0.171513 0.153367 0.159666 0.141787 0.151202 yield of N-waste on food
mu_TX J/mol 482108 474728 425759 442732 394155 419631 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