Septifer virgatus: Population traits

at T = 25 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.251091 0.257686 0.628843 0.628843 1 1 scaled functional response
r 1/d 0 0 0.0190215 0.00309302 0.0328755 0.00525947 spec pop growth rate
t2 d NaN NaN 36.4402 224.101 21.084 131.79 population doubling time
a_b d 1.33911 1.33397 1.16389 1.16389 1.08033 1.08033 age at birth
t_j d 23.1978 22.591 9.28826 9.28826 5.96038 5.96038 time since birth at metam
t_p d 4674.66 2807.66 415.212 415.212 242.4 242.4 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.886995 1 0.774832 1 0.691262 survival probability at metam
S_p - 0.999998 0.131232 1 0.130567 1 0.130402 survival probability at puberty
theta_0b - 0.000249892 0.0780091 0.0216269 0.172766 0.0344727 0.233657 frac of ind that is embryo
theta_bj - 0.00025407 0.0747258 0.0214223 0.153903 0.0336904 0.196793 frac of ind between b and j
theta_jp - 0.00414726 0.499757 0.137026 0.435594 0.138123 0.353089 frac of ind between j and p
theta_pi - 0.995349 0.347508 0.819925 0.237738 0.793714 0.216461 frac of ind that is adult
L_bi cm 0.366454 0.0592601 0.074485 0.0259772 0.0693716 0.0251698 mean structural length of post-natals
L2_bi cm^2 0.143222 0.0156956 0.0096229 0.0027324 0.00848661 0.00252791 mean squared structural length of post-natals
L3_bi cm^3 0.0573468 0.00589168 0.00175631 0.000867225 0.0015009 0.000838453 mean cubed structural length of post-natals
Ww_bi g 0.0587694 0.00604167 0.00186543 0.000921104 0.00164918 0.00092129 mean wet weight of post-natals
L_pi cm 0.368014 0.137055 0.0862702 0.0601636 0.0814684 0.0581424 mean structural length of adults
L2_pi cm^2 0.143855 0.0413878 0.0114459 0.00912614 0.0102828 0.00855875 mean squared structural length of adults
L3_pi cm^3 0.0576004 0.0156282 0.00209519 0.0030126 0.0018252 0.00296328 mean cubed structural length of adults
Ww_pi g 0.0590293 0.016026 0.00222536 0.00319977 0.00200553 0.00325604 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.000432015 4.85018e-05 7.27714e-05 2.04273e-05 0.000102083 3.00326e-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 0.459077 0.131312 0.48336 0.146835 yield of living structure on food
Y_VX_d mol/mol 0.0329923 0.0795068 1.89327e-05 0.263254 6.17351e-06 0.293879 yield of dead structure on food
Y_EX mol/mol 0 0 0.0285215 0.00815813 0.0477547 0.0145069 yield of living reserve on food
Y_EX_d mol/mol 0.000818443 0.00202414 1.17625e-06 0.0163554 6.09926e-07 0.0290344 yield of dead reserve on food
Y_CX mol/mol 0.856814 0.809094 0.403006 0.471546 0.359503 0.406371 yield of CO2 on food
Y_HX mol/mol 0.621666 0.587043 0.292403 0.342133 0.26084 0.294844 yield of H2O on food
Y_OX mol/mol -0.931786 -0.87989 -0.438269 -0.512806 -0.39096 -0.441928 yield of O2 on food
Y_NX mol/mol 0.128522 0.121364 0.0604509 0.0707319 0.0539255 0.0609556 yield of N-waste on food
mu_TX J/mol 455554 431633 227264 261735 204551 228196 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