Harpagifer bispinis: Population traits

at T = 7.1 °C with background hazards for embryo, larva, juv, adult: 0, 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 abj f_minf f_max date: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.393826 0.853681 0.926841 0.926841 1 1 scaled functional response
r 1/d 0 0 0.00241548 2.82356e-05 0.00275042 6.00704e-05 spec pop growth rate
t2 d NaN NaN 286.96 24548.7 252.015 11538.9 population doubling time
a_b d 89.4241 79.4968 78.607 78.607 77.8145 77.8145 age at birth
t_j d 147.471 78.8235 74.6003 74.6003 71.0326 71.0326 time since birth at metam
t_p d 4674.43 1209.32 1118.04 1118.04 1044.5 1044.5 time since birth at puberty
S_b - 0.999967 0.999976 0.999977 0.999977 0.999978 0.999978 survival probability at birth
S_j - 0.999814 0.270814 0.999895 0.269578 0.999903 0.268547 survival probability at metam
S_p - 0.999659 0.268811 0.999889 0.257372 0.999894 0.247452 survival probability at puberty
theta_0b - 0.0187117 0.421276 0.173247 0.4404 0.192897 0.457787 frac of ind that is embryo
theta_bj - 0.0187271 0.233299 0.136684 0.232557 0.143506 0.231683 frac of ind between b and j
theta_jp - 0.0121542 0.000963296 0.00666691 0.00589677 0.012291 0.0102206 frac of ind between j and p
theta_pi - 0.950407 0.344462 0.683403 0.321146 0.651306 0.300309 frac of ind that is adult
L_bi cm 0.81004 0.632241 0.640666 0.623864 0.618412 0.611857 mean structural length of post-natals
L2_bi cm^2 0.707029 0.783118 0.569753 0.79715 0.535899 0.797803 mean squared structural length of post-natals
L3_bi cm^3 0.640689 1.31093 0.632383 1.41525 0.587276 1.48801 mean cubed structural length of post-natals
Ww_bi g 0.862967 2.2968 1.14872 2.57079 1.10463 2.79885 mean wet weight of post-natals
L_pi cm 0.829878 0.929861 0.732045 0.941511 0.716814 0.945719 mean structural length of adults
L2_pi cm^2 0.728691 1.28954 0.680291 1.36001 0.653638 1.40848 mean squared structural length of adults
L3_pi cm^3 0.661237 2.19721 0.763127 2.4602 0.725509 2.68007 mean cubed structural length of adults
Ww_pi g 0.890645 3.84961 1.38621 4.46893 1.36464 5.04105 mean wet weight of adults
R 1/d 0 0.0295571 0.0076918 0.0340681 0.0075116 0.0376784 mean reproduction rate of adults
J_X g/d 0.00376185 0.0092325 0.00731806 0.0102182 0.00743376 0.0110464 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 0.208732 0.00391073 0.217286 0.00809175 yield of living structure on food
Y_VX_d mol/mol 0.0537947 0.105331 0.00210087 0.105106 0.00158248 0.105046 yield of dead structure on food
Y_EX mol/mol 0 0 0.170427 0.00319308 0.191416 0.00712834 yield of living reserve on food
Y_EX_d mol/mol 0.0186634 0.0792129 0.00171534 0.0858179 0.00139407 0.0925388 yield of dead reserve on food
Y_CX mol/mol 0.818167 0.706082 0.50765 0.692598 0.478946 0.677821 yield of CO2 on food
Y_HX mol/mol 0.588626 0.507986 0.365226 0.498285 0.344575 0.487654 yield of H2O on food
Y_OX mol/mol -0.889757 -0.767864 -0.552069 -0.7532 -0.520854 -0.73713 yield of O2 on food
Y_NX mol/mol 0.122725 0.105912 0.0761475 0.10389 0.0718419 0.101673 yield of N-waste on food
mu_TX J/mol 435338 376268 272405 369036 257020 361114 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