Phrynosoma ditmarsi: Population traits

at T = 25 °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: 2025/02/13
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.820407 0.820407 0.859874 0.859874 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0023741 0.0023741 0.000603142 0.000603142 spec pop growth rate
t2 d NaN NaN NaN NaN 291.962 291.962 1149.23 1149.23 population doubling time
a_b d 60.0575 60.0575 59.7319 59.7319 58.745 58.745 58.745 58.745 age at birth
t_p d 1712.87 488.855 1076.27 449.747 659.353 361.731 659.353 361.731 time since birth at puberty
S_b - 0.999998 0.999998 0.999998 0.999998 0.999998 0.999998 0.999998 0.999998 survival probability at birth
S_p - 0.999986 0.999986 0.509675 0.509675 0.999988 0.999988 0.474141 0.474141 survival probability at puberty
theta_0b - 0.0150054 0.0150054 0.10005 0.10005 0.130543 0.130543 0.227059 0.227059 frac of ind that is embryo
theta_bp - 0.0150105 0.0150105 0.0705534 0.0705534 0.113579 0.113579 0.149383 0.149383 fraction of individuals that is juvenile
theta_pi - 0.969984 0.969984 0.829397 0.829397 0.755879 0.755879 0.623558 0.623558 frac of ind that is adult
L_bi cm 1.82372 1.82372 1.77722 1.77722 1.64992 1.64992 1.69826 1.69826 mean structural length of post-natals
L2_bi cm^2 3.36922 3.36922 3.30641 3.30641 2.96582 2.96582 3.2369 3.2369 mean squared structural length of post-natals
L3_bi cm^3 6.27236 6.27236 6.30684 6.30684 5.65657 5.65657 6.61446 6.61446 mean cubed structural length of post-natals
Ww_bi g 16.5433 16.5433 17.1311 17.1311 16.9468 16.9468 19.8166 19.8166 mean wet weight of post-natals
L_pi cm 1.83952 1.83952 1.86083 1.86083 1.77362 1.77362 1.91095 1.91095 mean structural length of adults
L2_pi cm^2 3.4113 3.4113 3.53348 3.53348 3.30761 3.30761 3.85316 3.85316 mean squared structural length of adults
L3_pi cm^3 6.36122 6.36122 6.79947 6.79947 6.41874 6.41874 8.06703 8.06703 mean cubed structural length of adults
Ww_pi g 16.7777 16.7777 18.4692 18.4692 19.2303 19.2303 24.1685 24.1685 mean wet weight of adults
R 1/d 0 0.0179917 0.000912148 0.0201024 0.000940987 0.0187145 0.00803943 0.025813 mean reproduction rate of adults
J_X g/d 0.295273 0.295273 0.303708 0.303708 0.316819 0.316819 0.345776 0.345776 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 0.0423879 0.0423879 0.0115377 0.0115377 yield of living structure on food
Y_VX_d mol/mol 0.00592514 0.00592514 0.0127841 0.0127841 0.000290787 0.000290787 0.019888 0.019888 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0846043 0.0846043 0.0230287 0.0230287 yield of living reserve on food
Y_EX_d mol/mol 0.00970239 0.00970239 0.0219409 0.0219409 0.000580397 0.000580397 0.0396956 0.0396956 yield of dead reserve on food
Y_CX mol/mol 0.710935 0.710935 0.695419 0.695419 0.619744 0.619744 0.647136 0.647136 yield of CO2 on food
Y_HX mol/mol 0.755901 0.755901 0.739403 0.739403 0.658941 0.658941 0.688066 0.688066 yield of H2O on food
Y_OX mol/mol -0.902341 -0.902341 -0.882647 -0.882647 -0.786598 -0.786598 -0.821365 -0.821365 yield of O2 on food
Y_NX mol/mol 0.164062 0.164062 0.160481 0.160481 0.143018 0.143018 0.149339 0.149339 yield of N-waste on food
mu_TX J/mol 456195 456195 446209 446209 397330 397330 415001 415001 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