Abra segmentum: Population traits

at T = 15 °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: 2025/05/17
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.338898 0.627281 0.81364 0.81364 1 1 scaled functional response
r 1/d 0 0 0.0171176 0.000824235 0.0236249 0.00158595 spec pop growth rate
t2 d NaN NaN 40.4933 840.958 29.3397 437.054 population doubling time
a_b d 5.63266 5.08935 4.87137 4.87137 4.70481 4.70481 age at birth
t_j d 65.934 35.1559 27.4312 27.4312 22.6963 22.6963 time since birth at metam
t_p d 1367.04 447.425 324.614 324.614 258.027 258.027 time since birth at puberty
S_b - 0.999986 0.999989 0.99999 0.99999 0.999991 0.999991 survival probability at birth
S_j - 0.999914 0.657825 0.999945 0.596817 0.999951 0.54652 survival probability at metam
S_p - 0.997044 0.0553844 0.999494 0.0546581 0.99965 0.0542181 survival probability at puberty
theta_0b - 0.00664274 0.269416 0.080065 0.318529 0.105161 0.357317 frac of ind that is embryo
theta_bj - 0.00666778 0.220687 0.0738141 0.248411 0.0942718 0.266819 frac of ind between b and j
theta_jp - 0.0712921 0.3885 0.271853 0.331331 0.277618 0.285828 frac of ind between j and p
theta_pi - 0.915397 0.121397 0.574268 0.101729 0.522949 0.0900362 frac of ind that is adult
L_bi cm 0.158132 0.0392976 0.078337 0.036643 0.0713778 0.035004 mean structural length of post-natals
L2_bi cm^2 0.0297572 0.0053862 0.010415 0.00496631 0.00879079 0.00461573 mean squared structural length of post-natals
L3_bi cm^3 0.00603859 0.00153686 0.0019099 0.00162234 0.0015346 0.00163916 mean cubed structural length of post-natals
Ww_bi g 0.00642893 0.00172074 0.0022063 0.00187412 0.00182731 0.00195182 mean wet weight of post-natals
L_pi cm 0.169479 0.134577 0.110846 0.129748 0.104898 0.125234 mean structural length of adults
L2_pi cm^2 0.0322348 0.0302064 0.0162995 0.0307611 0.0145908 0.0302466 mean squared structural length of adults
L3_pi cm^3 0.00655126 0.00919754 0.00304868 0.0108093 0.00261322 0.0116374 mean cubed structural length of adults
Ww_pi g 0.00697473 0.010298 0.00352181 0.0124869 0.00311166 0.0138571 mean wet weight of adults
R 1/d 0 0.421595 0 1.00049 0 1.44061 mean reproduction rate of adults
J_X g/d 9.70269e-05 3.21919e-05 8.2863e-05 3.855e-05 8.60143e-05 4.40274e-05 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 0.394541 0.0346873 0.421498 0.0590459 yield of living structure on food
Y_VX_d mol/mol 0.141331 0.243994 0.00467094 0.242547 0.00242871 0.244299 yield of dead structure on food
Y_EX mol/mol 0 0 0.0612297 0.00538319 0.0803957 0.0112623 yield of living reserve on food
Y_EX_d mol/mol 0.00913575 0.029193 0.000724894 0.0376414 0.000463247 0.0465972 yield of dead reserve on food
Y_CX mol/mol 0.740158 0.617438 0.429458 0.570366 0.38584 0.52942 yield of CO2 on food
Y_HX mol/mol 0.537026 0.447985 0.311596 0.413833 0.279948 0.384124 yield of H2O on food
Y_OX mol/mol -0.804922 -0.671464 -0.467036 -0.620274 -0.419601 -0.575744 yield of O2 on food
Y_NX mol/mol 0.111024 0.0926157 0.0644188 0.085555 0.0578759 0.079413 yield of N-waste on food
mu_TX J/mol 396810 334447 238819 310219 216064 289005 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