Spheniscus humboldti: Population traits

at T = 38.2 °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_minf f_max date: 2023/10/02
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.845808 0.906263 0.953131 0.953131 1 1 scaled functional response
r 1/d 0 0 0.00125684 7.85657e-05 0.00164258 0.000134126 spec pop growth rate
t2 d NaN NaN 551.502 8822.52 421.987 5167.87 population doubling time
a_b d 34.0789 33.9481 33.8581 33.8581 33.7767 33.7767 age at birth
t_p d 493.83 261.665 218.978 218.978 194 194 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.381499 1 0.373877 1 0.367082 survival probability at puberty
theta_0b - 0.00303105 0.0336188 0.0417108 0.0547437 0.0540061 0.0742011 frac of ind that is embryo
theta_bp - 0.00302998 0.0202693 0.0399592 0.0326175 0.0510737 0.0437615 fraction of individuals that is juvenile
theta_pi - 0.993939 0.946112 0.91833 0.912639 0.89492 0.882037 frac of ind that is adult
L_bi cm 5.09518 5.36238 5.23882 5.54354 5.3104 5.71634 mean structural length of post-natals
L2_bi cm^2 26.0181 29.0939 28.3542 31.3632 29.4594 33.65 mean squared structural length of post-natals
L3_bi cm^3 133.019 158.688 156.29 179.053 167.509 200.643 mean cubed structural length of post-natals
Ww_bi g 2536.4 3230.8 3338.46 3824.68 3745.79 4486.73 mean wet weight of post-natals
L_pi cm 5.10423 5.43298 5.37283 5.66741 5.48955 5.89638 mean structural length of adults
L2_pi cm^2 26.0833 29.6238 29.3813 32.3266 30.8664 35.0987 mean squared structural length of adults
L3_pi cm^3 133.393 161.888 162.628 185.112 176.45 210.117 mean cubed structural length of adults
Ww_pi g 2543.54 3295.93 3473.84 3954.1 3945.74 4698.59 mean wet weight of adults
R 1/d 8.81501e-05 0.00194109 0.00193313 0.00332232 0.00270362 0.00470775 mean reproduction rate of adults
J_X g/d 94.9539 113.768 116.61 128.985 127.113 145.195 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 0.00168452 0.000109063 0.00216458 0.000185347 yield of living structure on food
Y_VX_d mol/mol 0.000126678 0.000313352 1.84957e-06 0.000378118 1.04679e-06 0.000447596 yield of dead structure on food
Y_EX mol/mol 0 0 0.0342978 0.00222058 0.0462392 0.00395935 yield of living reserve on food
Y_EX_d mol/mol 0.00228882 0.00606631 3.76584e-05 0.00769871 2.23612e-05 0.00956145 yield of dead reserve on food
Y_CX mol/mol 0.72167 0.718449 0.694365 0.715178 0.684286 0.712133 yield of CO2 on food
Y_HX mol/mol 0.768301 0.764872 0.739232 0.761389 0.728501 0.758148 yield of H2O on food
Y_OX mol/mol -0.915966 -0.911878 -0.88131 -0.907725 -0.868516 -0.903861 yield of O2 on food
Y_NX mol/mol 0.166539 0.165796 0.160238 0.165041 0.157912 0.164338 yield of N-waste on food
mu_TX J/mol 463051 460916 444953 458747 438267 456727 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