Patella vulgata: Population traits

at T = 14 °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 - 0.161436 0.161436 0.580718 0.580718 1 1 scaled functional response
r 1/d 0 0 0.0206735 0.00616627 0.0302977 0.00859834 spec pop growth rate
t2 d NaN NaN 33.5282 112.409 22.8779 80.6141 population doubling time
a_b d 4.58087 4.58087 3.7293 3.7293 3.47292 3.47292 age at birth
t_j d 0.00511836 0.00511836 0.00188371 0.00188371 0.00136552 0.00136552 time since birth at metam
t_p d 2980.37 2980.37 442.137 442.137 300.241 300.241 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.999341 1 0.999331 1 0.99933 survival probability at metam
S_p - 1 0.698993 1 0.481682 1 0.406828 survival probability at puberty
theta_0b - 0.000846547 0.133577 0.0739954 0.336402 0.099529 0.397121 frac of ind that is embryo
theta_bj - 9.49511e-07 0.000149775 3.6061e-05 0.000168436 3.72537e-05 0.000154389 frac of ind between b and j
theta_jp - 0.000848851 0.111924 0.0686746 0.228942 0.0898976 0.247145 frac of ind between j and p
theta_pi - 0.998304 0.754349 0.857294 0.434487 0.810536 0.35558 frac of ind that is adult
L_bi cm 0.235508 0.070723 0.0547493 0.0253689 0.0531117 0.0251877 mean structural length of post-natals
L2_bi cm^2 0.05883 0.0130771 0.00494168 0.00157346 0.00470824 0.00157128 mean squared structural length of post-natals
L3_bi cm^3 0.0150346 0.00307972 0.000631806 0.000232599 0.000601856 0.000244738 mean cubed structural length of post-natals
Ww_bi g 0.0190914 0.00391072 0.00124506 0.000458368 0.00160782 0.000653804 mean wet weight of post-natals
L_pi cm 0.2357 0.0798544 0.0583092 0.0334083 0.0578004 0.0353839 mean structural length of adults
L2_pi cm^2 0.05888 0.0150072 0.0053291 0.00234853 0.00521736 0.00258569 mean squared structural length of adults
L3_pi cm^3 0.0150474 0.00353715 0.000682353 0.000354686 0.000668487 0.000414096 mean cubed structural length of adults
Ww_pi g 0.0191077 0.00449158 0.00134467 0.000698957 0.00178582 0.00110623 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.00040007 8.893e-05 0.000120887 3.8491e-05 0.000198334 6.61901e-05 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.00632975 0.00632975 0.00632975 0.00632975 0.00632975 0.00632975 yield of faeces on food
Y_VX mol/mol 0 0 0.108049 0.0372625 0.0919401 0.0317924 yield of living structure on food
Y_VX_d mol/mol 0.00899133 0.0215142 3.03239e-06 0.0702702 1.1297e-06 0.0601291 yield of dead structure on food
Y_EX mol/mol 0 0 0.104876 0.0361682 0.153672 0.0531391 yield of living reserve on food
Y_EX_d mol/mol 0.00242613 0.00580517 2.94334e-06 0.0682067 1.88823e-06 0.100502 yield of dead reserve on food
Y_CX mol/mol 0.982253 0.966351 0.78074 0.781763 0.748055 0.748107 yield of CO2 on food
Y_HX mol/mol 0.709405 0.69792 0.563868 0.564606 0.540262 0.5403 yield of H2O on food
Y_OX mol/mol -1.0682 -1.05091 -0.849055 -0.850167 -0.81351 -0.813567 yield of O2 on food
Y_NX mol/mol 0.147338 0.144953 0.117111 0.117264 0.112208 0.112216 yield of N-waste on food
mu_TX J/mol 516132 508012 410253 410789 391470 391498 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