Ancylus fluviatilis: Population traits

at T = 18 °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: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.31315 0.693744 0.846872 0.846872 1 1 scaled functional response
r 1/d 0 0 0.0163255 0.00072187 0.0205371 0.00140961 spec pop growth rate
t2 d NaN NaN 42.458 960.211 33.751 491.731 population doubling time
a_b d 10.5793 9.27187 8.97989 8.97989 8.74885 8.74885 age at birth
t_j d 7.96222 3.72857 3.15623 3.15623 2.76727 2.76727 time since birth at metam
t_p d 190.885 61.6566 50.216 50.216 42.9426 42.9426 time since birth at puberty
S_b - 0.999943 0.999961 0.999964 0.999964 0.999967 0.999967 survival probability at birth
S_j - 0.999736 0.752744 0.999922 0.744019 0.999933 0.738259 survival probability at metam
S_p - 0.999628 0.581597 0.9998 0.536308 0.999819 0.501021 survival probability at puberty
theta_0b - 0.0251882 0.163122 0.137442 0.207966 0.165107 0.247567 frac of ind that is embryo
theta_bj - 0.0189859 0.0571562 0.0437501 0.06306 0.0463734 0.067051 frac of ind between b and j
theta_jp - 0.0062393 0.0645259 0.0750332 0.0845281 0.0916647 0.101442 frac of ind between j and p
theta_pi - 0.949587 0.715196 0.743775 0.644446 0.696855 0.58394 frac of ind that is adult
L_bi cm 0.0655157 0.101939 0.0924051 0.10726 0.09322 0.109639 mean structural length of post-natals
L2_bi cm^2 0.00438984 0.012492 0.0100713 0.0147514 0.0104733 0.0163356 mean squared structural length of post-natals
L3_bi cm^3 0.000299257 0.00171302 0.00124989 0.00236073 0.00136896 0.00294401 mean cubed structural length of post-natals
Ww_bi g 0.00034361 0.00227547 0.00175086 0.00330694 0.00201687 0.00433735 mean wet weight of post-natals
L_pi cm 0.0662191 0.112128 0.100237 0.121997 0.10293 0.128682 mean structural length of adults
L2_pi cm^2 0.00446595 0.0143152 0.0113777 0.0177055 0.0121581 0.0204955 mean squared structural length of adults
L3_pi cm^3 0.000305624 0.00199165 0.00143625 0.00288296 0.00162265 0.00376896 mean cubed structural length of adults
Ww_pi g 0.00035092 0.00264559 0.00201192 0.00403847 0.00239063 0.00555274 mean wet weight of adults
R 1/d 0.00350008 0.027199 0.0237279 0.0392101 0.0279614 0.0508438 mean reproduction rate of adults
J_X g/d 1.84534e-05 0.000119868 0.000118435 0.000173463 0.000145805 0.000227411 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.21875 0.21875 0.21875 0.21875 0.21875 0.21875 yield of faeces on food
Y_VX mol/mol 0 0 0.17229 0.00982423 0.192823 0.0182484 yield of living structure on food
Y_VX_d mol/mol 0.0514939 0.0957879 0.00477002 0.097612 0.0030557 0.0995892 yield of dead structure on food
Y_EX mol/mol 0 0 0.0690552 0.00393763 0.0912594 0.00863662 yield of living reserve on food
Y_EX_d mol/mol 0.00763179 0.0314506 0.00191186 0.0391237 0.0014462 0.0471336 yield of dead reserve on food
Y_CX mol/mol 0.722124 0.654011 0.533223 0.630752 0.492666 0.607642 yield of CO2 on food
Y_HX mol/mol 0.521534 0.472342 0.385106 0.455543 0.355814 0.438853 yield of H2O on food
Y_OX mol/mol -0.78531 -0.711237 -0.57988 -0.685943 -0.535774 -0.660811 yield of O2 on food
Y_NX mol/mol 0.108319 0.0981017 0.0799835 0.0946129 0.0738999 0.0911463 yield of N-waste on food
mu_TX J/mol 390056 354808 292438 342598 271073 330408 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