Aythya americana: Population traits

at T = 41.2 °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: 2023/10/02
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.971852 0.971852 0.973928 0.973928 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0050365 0.0050365 0.0010964 0.0010964 spec pop growth rate
t2 d NaN NaN NaN NaN 137.625 137.625 632.2 632.2 population doubling time
a_b d 17.1422 17.1525 17.1402 17.1504 17.1153 17.1252 17.1153 17.1252 age at birth
t_p d 462.096 NaN 327.512 NaN 190.924 215.25 190.924 215.25 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.387462 0.389208 1 1 0.38324 0.384926 survival probability at puberty
theta_0b - 0.00196598 0.00198352 0.0210059 0.0207679 0.0826085 0.0826545 0.153174 0.151085 frac of ind that is embryo
theta_bp - 0.00196549 0.00198302 0.0127681 0.0126501 0.0757676 0.0758061 0.091041 0.0899828 fraction of individuals that is juvenile
theta_pi - 0.996069 0.996033 0.966226 0.966582 0.841624 0.841539 0.755785 0.758932 frac of ind that is adult
L_bi cm 3.92298 3.88149 3.89031 3.84999 3.40382 3.37543 3.55887 3.53109 mean structural length of post-natals
L2_bi cm^2 15.4142 15.0896 15.2439 14.9271 12.2158 12.0021 13.4231 13.1936 mean squared structural length of post-natals
L3_bi cm^3 60.6173 58.712 59.9273 58.0614 45.2682 44.046 52.1169 50.7132 mean cubed structural length of post-natals
Ww_bi g 1250.49 1198.97 1238.77 1188.09 959.587 924.246 1104.76 1064.15 mean wet weight of post-natals
L_pi cm 3.92764 3.88611 3.92181 3.88069 3.5695 3.53885 3.80576 3.77101 mean structural length of adults
L2_pi cm^2 15.4397 15.1148 15.4148 15.0923 13.0914 12.8597 14.7603 14.4833 mean squared structural length of adults
L3_pi cm^3 60.729 58.8209 60.6714 58.7742 48.9807 47.6525 57.9563 56.2961 mean cubed structural length of adults
Ww_pi g 1252.8 1201.19 1254.15 1202.68 1038.28 999.922 1228.55 1181.3 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 88.944 86.1477 88.1489 85.402 72.5295 70.5051 79.6979 77.5048 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 0.00314346 0.00314641 0.000716972 0.000717404 yield of living structure on food
Y_VX_d mol/mol 7.90581e-05 7.9714e-05 0.000189075 0.000190152 2.9457e-09 2.98924e-09 0.00099675 0.00099305 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.063491 0.0628766 0.0144813 0.0143363 yield of living reserve on food
Y_EX_d mol/mol 0.00155185 0.00154814 0.00371933 0.00370085 5.94967e-08 5.97359e-08 0.0201322 0.0198447 yield of dead reserve on food
Y_CX mol/mol 0.722308 0.72231 0.720457 0.720471 0.669492 0.669989 0.694117 0.694471 yield of CO2 on food
Y_HX mol/mol 0.76898 0.768983 0.76701 0.767025 0.712752 0.713281 0.738968 0.739344 yield of H2O on food
Y_OX mol/mol -0.916775 -0.916778 -0.914426 -0.914444 -0.84974 -0.850371 -0.880995 -0.881444 yield of O2 on food
Y_NX mol/mol 0.166686 0.166687 0.166259 0.166263 0.154498 0.154613 0.160181 0.160263 yield of N-waste on food
mu_TX J/mol 463473 463474 462246 462256 428469 428799 444789 445024 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