Megaceryle alcyon: Population traits

at T = 40 °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: 2025/06/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.920606 NaN 0.928461 0.928461 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0050293 0.0050293 0.0012665 0.0012665 spec pop growth rate
t2 d NaN NaN NaN NaN 137.822 137.822 547.293 547.293 population doubling time
a_b d 15.0299 NaN 15.0186 NaN 14.9229 14.9421 14.9229 14.9421 age at birth
t_p d 214.3 NaN 154.805 NaN 84.8407 90.9841 84.8407 90.9841 time since birth at puberty
S_b - 1 NaN 1 NaN 1 1 1 1 survival probability at birth
S_p - 1 NaN 0.489585 NaN 1 1 0.469131 0.473178 survival probability at puberty
theta_0b - 0.00283743 NaN 0.0146414 NaN 0.0723088 0.0723983 0.0946797 0.0925911 frac of ind that is embryo
theta_bp - 0.00283745 NaN 0.0100038 NaN 0.0670801 0.0671568 0.0622252 0.0611089 fraction of individuals that is juvenile
theta_pi - 0.994325 NaN 0.975355 NaN 0.860611 0.860445 0.843095 0.8463 frac of ind that is adult
L_bi cm 2.59877 NaN 2.60743 NaN 2.55479 2.52166 2.65199 2.6177 mean structural length of post-natals
L2_bi cm^2 6.76098 NaN 6.82059 NaN 6.70526 6.52695 7.20075 7.00805 mean squared structural length of post-natals
L3_bi cm^3 17.6015 NaN 17.8748 NaN 17.9162 17.191 19.8245 19.0133 mean cubed structural length of post-natals
Ww_bi g 110.095 NaN 112.606 NaN 120.182 113.829 132.983 125.895 mean wet weight of post-natals
L_pi cm 2.60217 NaN 2.62001 NaN 2.64258 2.6073 2.74458 2.70606 mean structural length of adults
L2_pi cm^2 6.77456 NaN 6.87077 NaN 7.06702 6.87627 7.58632 7.3721 mean squared structural length of adults
L3_pi cm^3 17.6435 NaN 18.0302 NaN 19.0777 18.2997 21.0788 20.1836 mean cubed structural length of adults
Ww_pi g 110.358 NaN 113.585 NaN 127.974 121.17 141.398 133.644 mean wet weight of adults
R 1/d 0 NaN 0.00142585 NaN 0.00560231 0.00287338 0.0122816 0.00921807 mean reproduction rate of adults
J_X g/d 12.2155 NaN 12.4283 NaN 13.1596 12.6153 14.132 13.5451 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.00684716 0.00685349 0.00177665 0.00177778 yield of living structure on food
Y_VX_d mol/mol 0.000275243 NaN 0.000587093 NaN 4.81939e-07 4.91571e-07 0.00209929 0.00208017 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.0390838 0.0385264 0.0101412 0.00999368 yield of living reserve on food
Y_EX_d mol/mol 0.00144636 NaN 0.00311141 NaN 2.75092e-06 2.76333e-06 0.0119828 0.0116935 yield of dead reserve on food
Y_CX mol/mol 0.722234 NaN 0.720628 NaN 0.686311 0.686759 0.702508 0.702877 yield of CO2 on food
Y_HX mol/mol 0.768901 NaN 0.767191 NaN 0.730658 0.731134 0.747901 0.748294 yield of H2O on food
Y_OX mol/mol -0.916682 NaN -0.914643 NaN -0.871087 -0.871656 -0.891645 -0.892114 yield of O2 on food
Y_NX mol/mol 0.166669 NaN 0.166299 NaN 0.15838 0.158483 0.162117 0.162202 yield of N-waste on food
mu_TX J/mol 463433 NaN 462380 NaN 439850 440148 450482 450728 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