Eisenia fetida: Population traits

at T = 20 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.250582 0.252548 0.626274 0.626274 1 1 scaled functional response
r 1/d 0 0 0.0269085 0.0113505 0.0378272 0.0131612 spec pop growth rate
t2 d NaN NaN 25.7594 61.0677 18.324 52.666 population doubling time
a_b d 15.4154 15.4067 14.7022 14.7022 14.5096 14.5096 age at birth
t_p d 1508.2 1326.55 84.6806 84.6806 61.7175 61.7175 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 0.999999 0.69592 1 0.390192 1 0.332126 survival probability at puberty
theta_0b - 0.00832132 0.0154446 0.326752 0.440741 0.422412 0.522333 frac of ind that is embryo
theta_bp - 0.00832075 0.0125942 0.219976 0.230281 0.243969 0.248454 fraction of individuals that is juvenile
theta_pi - 0.983358 0.971961 0.453272 0.328978 0.333619 0.229213 frac of ind that is adult
L_bi cm 0.0857237 0.0862959 0.132836 0.131047 0.141635 0.139084 mean structural length of post-natals
L2_bi cm^2 0.00735137 0.00745145 0.0193102 0.0194591 0.0231924 0.0240304 mean squared structural length of post-natals
L3_bi cm^3 0.000630627 0.00064373 0.00302004 0.00318971 0.00431163 0.00502043 mean cubed structural length of post-natals
Ww_bi g 0.00884191 0.0090914 0.1013 0.106991 0.228354 0.265894 mean wet weight of post-natals
L_pi cm 0.085857 0.0865097 0.15516 0.163662 0.178252 0.193917 mean structural length of adults
L2_pi cm^2 0.00737204 0.00748471 0.0249565 0.0279945 0.0338706 0.0413714 mean squared structural length of adults
L3_pi cm^3 0.000633042 0.00064763 0.00415083 0.00497694 0.0068615 0.00965218 mean cubed structural length of adults
Ww_pi g 0.00887577 0.00914649 0.13923 0.16694 0.363402 0.511203 mean wet weight of adults
R 1/d 0.00200571 0.00298357 0.124074 0.152077 0.147158 0.210824 mean reproduction rate of adults
J_X g/d 0.0018514 0.00189133 0.0121544 0.0122481 0.0233093 0.0241515 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 0.00668603 0.00295593 0.00699707 0.00273585 yield of living structure on food
Y_VX_d mol/mol 0.000186829 0.000286709 2.49246e-07 0.00349877 9.47948e-08 0.00369187 yield of dead structure on food
Y_EX mol/mol 0 0 0.217581 0.096194 0.363585 0.142161 yield of living reserve on food
Y_EX_d mol/mol 0.00243266 0.00376249 8.11115e-06 0.113859 4.92577e-06 0.191839 yield of dead reserve on food
Y_CX mol/mol 0.821405 0.820083 0.616373 0.623558 0.481035 0.508932 yield of CO2 on food
Y_HX mol/mol 0.707444 0.706305 0.530858 0.537046 0.414297 0.438324 yield of H2O on food
Y_OX mol/mol -0.965706 -0.964151 -0.724655 -0.733102 -0.565542 -0.598339 yield of O2 on food
Y_NX mol/mol 0.0666004 0.0664932 0.0499762 0.0505588 0.0390029 0.0412648 yield of N-waste on food
mu_TX J/mol 462943 462175 343385 347575 264269 280552 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