Spatula clypeata: Population traits

at T = 40.2 °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: 2025/10/16
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.876584 0.876584 0.882575 0.882575 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00599609 0.00599609 0.00143343 0.00143343 spec pop growth rate
t2 d NaN NaN NaN NaN 115.6 115.6 483.559 483.559 population doubling time
a_b d 13.3623 13.3537 13.3593 NaN 13.3065 13.2988 13.3065 13.2988 age at birth
t_p d 434.29 248.513 310.667 NaN 134.595 127.439 134.595 127.439 time since birth at puberty
S_b - 1 1 1 NaN 1 1 1 1 survival probability at birth
S_p - 1 1 0.431805 NaN 1 1 0.40575 0.402121 survival probability at puberty
theta_0b - 0.00159807 0.00158571 0.0097244 NaN 0.076703 0.0766609 0.117418 0.12065 frac of ind that is embryo
theta_bp - 0.00159775 0.00158538 0.00620069 NaN 0.0708063 0.0707705 0.0714213 0.07308 fraction of individuals that is juvenile
theta_pi - 0.996804 0.996829 0.984075 NaN 0.852491 0.852569 0.811161 0.80627 frac of ind that is adult
L_bi cm 1.65277 1.68486 1.65861 NaN 1.67907 1.70617 1.74358 1.77117 mean structural length of post-natals
L2_bi cm^2 2.73341 2.84068 2.75677 NaN 2.91496 3.01355 3.13839 3.24447 mean squared structural length of post-natals
L3_bi cm^3 4.5224 4.79132 4.58733 NaN 5.16842 5.43982 5.74796 6.05249 mean cubed structural length of post-natals
Ww_bi g 347.39 375.121 354.755 NaN 452.183 485.091 502.888 539.725 mean wet weight of post-natals
L_pi cm 1.65404 1.68618 1.6638 NaN 1.74571 1.77477 1.82229 1.85448 mean structural length of adults
L2_pi cm^2 2.7366 2.844 2.7697 NaN 3.09221 3.19841 3.35006 3.47159 mean squared structural length of adults
L3_pi cm^3 4.5286 4.79788 4.61242 NaN 5.53905 5.8321 6.19726 6.54205 mean cubed structural length of adults
Ww_pi g 347.866 375.635 356.695 NaN 484.61 520.072 542.196 583.382 mean wet weight of adults
R 1/d 3.2523e-05 0.00369321 0.00118434 NaN 0.0125766 0.0159399 0.0206875 0.0245466 mean reproduction rate of adults
J_X g/d 44.6199 47.274 45.3089 NaN 54.2828 57.2118 58.4436 61.5957 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 NaN 0.000570904 0.000570122 0.000140979 0.000140851 yield of living structure on food
Y_VX_d mol/mol 1.21978e-05 1.21121e-05 2.67089e-05 NaN 1.73679e-08 1.70069e-08 0.000178783 0.00018041 yield of dead structure on food
Y_EX mol/mol 0 0 0 NaN 0.0493773 0.05027 0.0121932 0.0124194 yield of living reserve on food
Y_EX_d mol/mol 0.00092478 0.000936165 0.00203879 NaN 1.50215e-06 1.49956e-06 0.0154629 0.0159075 yield of dead reserve on food
Y_CX mol/mol 0.722872 0.722862 0.721955 NaN 0.683049 0.682324 0.700902 0.700356 yield of CO2 on food
Y_HX mol/mol 0.76958 0.76957 0.768604 NaN 0.727184 0.726413 0.746191 0.74561 yield of H2O on food
Y_OX mol/mol -0.917491 -0.917479 -0.916327 NaN -0.866946 -0.866027 -0.889607 -0.888914 yield of O2 on food
Y_NX mol/mol 0.166817 0.166814 0.166605 NaN 0.157627 0.157459 0.161747 0.161621 yield of N-waste on food
mu_TX J/mol 463845 463839 463235 NaN 437364 436882 449236 448873 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