Sula dactylatra: Population traits

at T = 40.6 °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_minf f_max date: 2025/02/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.982169 0.99148 0.99574 0.99574 1 1 scaled functional response
r 1/d 0 0 0.00116504 6.68574e-05 0.00139648 0.000122933 spec pop growth rate
t2 d NaN NaN 594.956 10367.5 496.352 5638.39 population doubling time
a_b d 28.4507 28.4368 28.4305 28.4305 28.4243 28.4243 age at birth
t_p d 695.994 443.111 409.231 409.231 384.58 384.58 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 1 0.374314 1 0.373693 1 0.373078 survival probability at puberty
theta_0b - 0.00299722 0.036468 0.0326701 0.0495955 0.0389812 0.0616798 frac of ind that is embryo
theta_bp - 0.00299645 0.0218113 0.0315978 0.0295881 0.0374548 0.0367156 fraction of individuals that is juvenile
theta_pi - 0.994006 0.941721 0.935732 0.920816 0.923564 0.901605 frac of ind that is adult
L_bi cm 4.6491 4.60073 4.37993 4.57186 4.33237 4.54537 mean structural length of post-natals
L2_bi cm^2 21.6742 21.461 19.7204 21.3031 19.3876 21.1608 mean squared structural length of post-natals
L3_bi cm^3 101.193 100.71 90.1453 100.091 88.3329 99.5539 mean cubed structural length of post-natals
Ww_bi g 1852.43 1860.11 1671.75 1856.2 1644.77 1853.71 mean wet weight of post-natals
L_pi cm 4.65788 4.66858 4.46915 4.66505 4.43757 4.66236 mean structural length of adults
L2_pi cm^2 21.7303 21.8921 20.2825 21.896 20.049 21.9062 mean squared structural length of adults
L3_pi cm^3 101.481 102.928 93.002 103.148 91.6901 103.406 mean cubed structural length of adults
Ww_pi g 1857.7 1901.08 1724.73 1912.89 1707.28 1925.43 mean wet weight of adults
R 1/d 0 0.000330396 0 0.00054566 0 0.000792876 mean reproduction rate of adults
J_X g/d 116.387 116.335 107.359 115.975 105.998 115.693 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 0.00097824 5.77008e-05 0.00116375 0.000105784 yield of living structure on food
Y_VX_d mol/mol 9.33599e-05 0.000225758 3.02433e-06 0.000254086 2.10513e-06 0.000287792 yield of dead structure on food
Y_EX mol/mol 0 0 0.0171633 0.00101236 0.0205054 0.00186394 yield of living reserve on food
Y_EX_d mol/mol 0.00161568 0.00394399 5.30621e-05 0.00445796 3.70927e-05 0.00507093 yield of dead reserve on food
Y_CX mol/mol 0.722244 0.720245 0.708847 0.718935 0.705995 0.717678 yield of CO2 on food
Y_HX mol/mol 0.768912 0.766784 0.75465 0.765389 0.751613 0.764052 yield of H2O on food
Y_OX mol/mol -0.916695 -0.914157 -0.899691 -0.912494 -0.89607 -0.9109 yield of O2 on food
Y_NX mol/mol 0.166672 0.16621 0.16358 0.165908 0.162922 0.165618 yield of N-waste on food
mu_TX J/mol 463431 462107 454558 461239 452668 460407 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