Eriphia verrucosa: Population traits

at T = 20 °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 - 0.0748543 0.138144 0.569072 0.569072 1 1 scaled functional response
r 1/d 0 0 0.0139553 0.00218638 0.0249588 0.00376052 spec pop growth rate
t2 d NaN NaN 49.669 317.03 27.7716 184.322 population doubling time
a_b d 15.8664 14.4678 11.4718 11.4718 10.4393 10.4393 age at birth
t_j d 262.935 135.911 34.6187 34.6187 21.4286 21.4286 time since birth at metam
t_p d 3635.67 1435.31 316.782 316.782 192.988 192.988 time since birth at puberty
S_b - 0.999967 0.999974 0.999986 0.999986 0.999989 0.999989 survival probability at birth
S_j - 0.999805 0.832026 0.999925 0.556561 0.999945 0.421488 survival probability at metam
S_p - 0.984548 0.177259 0.999704 0.170607 0.999875 0.169747 survival probability at puberty
theta_0b - 0.00759431 0.119905 0.147593 0.333973 0.228865 0.429284 frac of ind that is embryo
theta_bj - 0.00766978 0.110303 0.12625 0.247815 0.176944 0.278176 frac of ind between b and j
theta_jp - 0.118695 0.429364 0.200702 0.208446 0.142594 0.116304 frac of ind between j and p
theta_pi - 0.866041 0.340428 0.525455 0.209766 0.451597 0.176237 frac of ind that is adult
L_bi cm 0.186355 0.107796 0.127726 0.0957345 0.12006 0.0943864 mean structural length of post-natals
L2_bi cm^2 0.0418497 0.0219975 0.0243919 0.0204859 0.0213564 0.0200609 mean squared structural length of post-natals
L3_bi cm^3 0.0104835 0.00724488 0.00657011 0.0103792 0.00539338 0.0107169 mean cubed structural length of post-natals
Ww_bi g 0.0107783 0.00762094 0.00797495 0.0125985 0.00741988 0.0147437 mean wet weight of post-natals
L_pi cm 0.205063 0.192741 0.171189 0.18587 0.164116 0.184062 mean structural length of adults
L2_pi cm^2 0.04745 0.0520888 0.0374239 0.0584588 0.0340344 0.0581788 mean squared structural length of adults
L3_pi cm^3 0.0119822 0.0184567 0.0105268 0.0325771 0.00906064 0.0343156 mean cubed structural length of adults
Ww_pi g 0.0123192 0.0194147 0.0127776 0.0395429 0.0124651 0.0472094 mean wet weight of adults
R 1/d 0 0.048993 0.25874 0.455999 0.379418 0.711784 mean reproduction rate of adults
J_X g/d 5.88765e-05 5.69504e-05 0.000266513 0.000220361 0.000409561 0.000379485 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 0.344029 0.10298 0.328675 0.1062 yield of living structure on food
Y_VX_d mol/mol 0.174252 0.252767 0.00122824 0.226888 0.000353736 0.216488 yield of dead structure on food
Y_EX mol/mol 0 0 0.0735615 0.0220196 0.123496 0.0399035 yield of living reserve on food
Y_EX_d mol/mol 0.00490097 0.0131202 0.000262627 0.048514 0.000132913 0.0813433 yield of dead reserve on food
Y_CX mol/mol 0.711472 0.624737 0.471544 0.490223 0.437967 0.44669 yield of CO2 on food
Y_HX mol/mol 0.51305 0.450505 0.340035 0.353505 0.315823 0.322113 yield of H2O on food
Y_OX mol/mol -0.773726 -0.679402 -0.512804 -0.533117 -0.476289 -0.485776 yield of O2 on food
Y_NX mol/mol 0.106721 0.0937106 0.0707315 0.0735334 0.0656951 0.0670036 yield of N-waste on food
mu_TX J/mol 382679 338900 259268 268772 239990 244470 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