Gopherus agassizii: Population traits

at T = 24 °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: 2023/04/09
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.629985 0.629985 0.669113 0.669113 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000449967 0.000449967 0.000155532 0.000155532 spec pop growth rate
t2 d NaN NaN NaN NaN 1540.44 1540.44 4456.62 4456.62 population doubling time
a_b d 233.528 229.894 231.174 227.568 215.987 212.604 215.987 212.604 age at birth
t_p d 23664.3 10636.8 15378.4 9080.51 5775.69 4438.55 5775.69 4438.55 time since birth at puberty
S_b - 0.999995 0.999996 0.999995 0.999996 0.999996 0.999997 0.999996 0.999997 survival probability at birth
S_p - 0.99997 0.999974 0.819075 0.801564 0.999976 0.99998 0.741454 0.722824 survival probability at puberty
theta_0b - 0.00871602 0.00827539 0.0525694 0.0577995 0.0926889 0.0912906 0.160889 0.171087 frac of ind that is embryo
theta_bp - 0.00873515 0.00829224 0.0476379 0.0518032 0.0842256 0.0830731 0.134127 0.140885 fraction of individuals that is juvenile
theta_pi - 0.982549 0.983432 0.899793 0.890397 0.823085 0.825636 0.704984 0.688029 frac of ind that is adult
L_bi cm 7.0708 7.74471 6.43683 6.89516 5.77872 6.13497 5.59559 5.79236 mean structural length of post-natals
L2_bi cm^2 51.6447 62.1137 45.4593 52.9879 38.4674 43.9748 38.5671 42.3669 mean squared structural length of post-natals
L3_bi cm^3 384.927 508.743 340.091 434.322 288.255 357.911 316.221 375.492 mean cubed structural length of post-natals
Ww_bi g 464.017 623.488 414.308 538.365 382.268 486.049 419.355 509.925 mean wet weight of post-natals
L_pi cm 7.10883 7.78631 6.62939 7.13248 6.07508 6.4601 6.11336 6.38598 mean structural length of adults
L2_pi cm^2 52.0344 62.5708 47.4507 55.6089 41.5518 47.5492 44.3301 49.3242 mean squared structural length of adults
L3_pi cm^3 388.155 512.845 356.931 458.287 315.287 391.443 371.841 447.388 mean cubed structural length of adults
Ww_pi g 467.908 628.515 434.824 568.071 418.116 531.587 493.115 607.56 mean wet weight of adults
R 1/d 0 0.00211515 0 0.00163446 0.000228857 0.00306641 0.000747646 0.0034594 mean reproduction rate of adults
J_X g/d 0.81966 1.08215 0.766302 0.980497 0.969104 1.21611 0.971616 1.17165 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 0.13384 0.132429 0.0506192 0.0498453 yield of living structure on food
Y_VX_d mol/mol 0.0227104 0.0219721 0.0441169 0.0435947 0.000835794 0.000754385 0.0752252 0.0760505 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0436514 0.0474117 0.0165092 0.0178455 yield of living reserve on food
Y_EX_d mol/mol 0.00466624 0.00495571 0.00962754 0.0104433 0.00027259 0.000270083 0.0245344 0.0272274 yield of dead reserve on food
Y_CX mol/mol 0.701389 0.701754 0.679965 0.679727 0.57852 0.57668 0.588036 0.584721 yield of CO2 on food
Y_HX mol/mol 0.745751 0.746138 0.722972 0.722718 0.61511 0.613154 0.625228 0.621703 yield of H2O on food
Y_OX mol/mol -0.890225 -0.890688 -0.863033 -0.86273 -0.734276 -0.73194 -0.746354 -0.742146 yield of O2 on food
Y_NX mol/mol 0.161859 0.161943 0.156915 0.15686 0.133505 0.13308 0.135701 0.134936 yield of N-waste on food
mu_TX J/mol 450680 450885 437489 437304 374489 373189 380382 378177 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