Molothrus ater: Population traits

at T = 41.6 °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: 2025/05/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.818793 0.818793 0.819935 0.819935 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0221771 0.0221771 0.00708392 0.00708392 spec pop growth rate
t2 d NaN NaN NaN NaN 31.2551 31.2551 97.848 97.848 population doubling time
a_b d 6.75982 6.71539 6.75878 6.71441 6.62263 6.5847 6.62263 6.5847 age at birth
t_p d 109.122 38.4544 89.2606 38.1583 24.0758 21.2654 24.0758 21.2654 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_p - 1 1 0.564673 0.542501 1 1 0.498918 0.481767 survival probability at puberty
theta_0b - 0.000689235 0.000650529 0.00255954 0.00271693 0.136584 0.135859 0.172882 0.185289 frac of ind that is embryo
theta_bp - 0.000689333 0.000650611 0.00188401 0.00195948 0.117938 0.117409 0.114364 0.120501 fraction of individuals that is juvenile
theta_pi - 0.998621 0.998699 0.995556 0.995324 0.745478 0.746732 0.712754 0.694211 frac of ind that is adult
L_bi cm 1.60265 1.70403 1.60375 1.70498 1.64259 1.72025 1.71547 1.7914 mean structural length of post-natals
L2_bi cm^2 2.56894 2.9043 2.57311 2.90846 2.80426 3.09145 3.06354 3.36666 mean squared structural length of post-natals
L3_bi cm^3 4.11834 4.95068 4.12952 4.96299 4.92453 5.73282 5.61782 6.52555 mean cubed structural length of post-natals
Ww_bi g 17.6135 22.2002 17.6802 22.2795 24.6327 30.1281 28.1005 34.2942 mean wet weight of post-natals
L_pi cm 1.60307 1.70449 1.60496 1.70641 1.74109 1.8284 1.82985 1.92654 mean structural length of adults
L2_pi cm^2 2.57004 2.90555 2.5762 2.91228 3.08172 3.40814 3.39217 3.77098 mean squared structural length of adults
L3_pi cm^3 4.12052 4.95325 4.13559 4.97086 5.53083 6.45562 6.35256 7.4718 mean cubed structural length of adults
Ww_pi g 17.6228 22.2117 17.7061 22.3149 27.6654 33.9267 31.7757 39.2671 mean wet weight of adults
R 1/d 5.5808e-05 0.026237 0.00055008 0.0267773 0.0447022 0.0697719 0.0670461 0.0965189 mean reproduction rate of adults
J_X g/d 4.86168 5.8443 4.87637 5.86081 6.48153 7.59764 7.08081 8.27401 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 0.0168497 0.0167338 0.00562028 0.00558695 yield of living structure on food
Y_VX_d mol/mol 8.65964e-05 8.22744e-05 0.000170283 0.000166666 1.04555e-11 9.70383e-12 0.00609763 0.00632731 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.0674329 0.0712086 0.0224926 0.0237746 yield of living reserve on food
Y_EX_d mol/mol 0.000283762 0.000286667 0.000558767 0.000581521 4.18434e-11 4.12935e-11 0.0244029 0.0269251 yield of dead reserve on food
Y_CX mol/mol 0.723332 0.723333 0.72304 0.723025 0.655153 0.65218 0.676009 0.672759 yield of CO2 on food
Y_HX mol/mol 0.77007 0.770071 0.76976 0.769743 0.697486 0.694321 0.71969 0.71623 yield of H2O on food
Y_OX mol/mol -0.918075 -0.918077 -0.917705 -0.917685 -0.831541 -0.827767 -0.858012 -0.853886 yield of O2 on food
Y_NX mol/mol 0.166923 0.166923 0.166855 0.166852 0.151189 0.150503 0.156002 0.155252 yield of N-waste on food
mu_TX J/mol 464155 464155 463965 463954 419609 417624 433236 431082 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