Oxyura jamaicensis: Population traits

at T = 40.7 °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_minf f_max date: 2023/10/02
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.970127 0.97264 0.98632 0.98632 1 1 scaled functional response
r 1/d 0 0 0.0031543 0.000882005 0.00474121 0.00147491 spec pop growth rate
t2 d NaN NaN 219.747 785.876 146.196 469.958 population doubling time
a_b d 13.3732 13.369 13.3459 13.3459 13.3234 13.3234 age at birth
t_p d 324.041 250.597 177.355 177.355 152.252 152.252 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.554637 1 0.550265 1 0.546014 survival probability at puberty
theta_0b - 0.00254341 0.0132775 0.0412177 0.0575847 0.061202 0.0895784 frac of ind that is embryo
theta_bp - 0.00254414 0.0097462 0.0395294 0.0416315 0.0574707 0.0640272 fraction of individuals that is juvenile
theta_pi - 0.994912 0.976976 0.919253 0.900784 0.881327 0.846394 frac of ind that is adult
L_bi cm 5.23666 5.21775 4.97116 5.09042 4.87186 5.00648 mean structural length of post-natals
L2_bi cm^2 27.4594 27.3316 25.188 26.3591 24.381 25.7468 mean squared structural length of post-natals
L3_bi cm^3 144.109 143.492 129.242 137.893 124.256 134.603 mean cubed structural length of post-natals
Ww_bi g 488.088 486.883 442.884 472.527 429.978 465.783 mean wet weight of post-natals
L_pi cm 5.24317 5.24335 5.06905 5.20289 5.01346 5.18379 mean structural length of adults
L2_pi cm^2 27.511 27.5336 25.9567 27.2486 25.4919 27.1541 mean squared structural length of adults
L3_pi cm^3 144.427 144.733 133.94 143.379 131.046 143.324 mean cubed structural length of adults
Ww_pi g 489.164 491.095 458.983 491.328 453.474 495.962 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 53.8683 53.7564 50.2373 52.573 49.3021 52.064 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 yield of faeces on food
Y_VX mol/mol 0 0 0.00811487 0.0023134 0.0119492 0.00381314 yield of living structure on food
Y_VX_d mol/mol 0.00051579 0.00109671 1.27363e-06 0.00270429 4.79137e-07 0.00432145 yield of dead structure on food
Y_EX mol/mol 0 0 0.0196929 0.00561409 0.0294002 0.00938194 yield of living reserve on food
Y_EX_d mol/mol 0.00123115 0.00262454 3.09081e-06 0.00656268 1.17888e-06 0.0106326 yield of dead reserve on food
Y_CX mol/mol 0.722213 0.720609 0.701035 0.709662 0.690035 0.700762 yield of CO2 on food
Y_HX mol/mol 0.76888 0.767172 0.746333 0.755517 0.734622 0.746042 yield of H2O on food
Y_OX mol/mol -0.916655 -0.914619 -0.889776 -0.900725 -0.875814 -0.889428 yield of O2 on food
Y_NX mol/mol 0.166665 0.166294 0.161777 0.163768 0.159239 0.161714 yield of N-waste on food
mu_TX J/mol 463432 462393 449714 455302 442584 449533 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female are the same.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer