Ballerus ballerus: Population traits

at T = 12 °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: 2025/04/03
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.481245 0.490862 0.745431 0.745431 1 1 scaled functional response
r 1/d 0 0 0.00300051 0.000760436 0.00407403 0.0010205 spec pop growth rate
t2 d NaN NaN 231.01 911.513 170.138 679.22 population doubling time
a_b d 29.4951 29.4201 28.0144 28.0144 27.2078 27.2078 age at birth
t_j d 14.1475 13.9864 11.2501 11.2501 9.91825 9.91825 time since birth at metam
t_p d 8360.9 7124.11 2896.39 2896.39 2210.52 2210.52 time since birth at puberty
S_b - 0.999999 0.999999 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_j - 0.999997 0.474495 0.999998 0.473181 0.999998 0.472571 survival probability at metam
S_p - 0.999995 0.292765 0.999996 0.251989 0.999996 0.229757 survival probability at puberty
theta_0b - 0.00397207 0.419601 0.0805636 0.505442 0.104837 0.535966 frac of ind that is embryo
theta_bj - 0.00190736 0.140769 0.0305316 0.141035 0.0354575 0.135137 frac of ind between b and j
theta_jp - 0.00206914 0.0821059 0.0436266 0.101961 0.0584853 0.108801 frac of ind between j and p
theta_pi - 0.992051 0.357524 0.845278 0.251562 0.80122 0.220096 frac of ind that is adult
L_bi cm 2.42414 0.470257 0.685794 0.254206 0.611555 0.240757 mean structural length of post-natals
L2_bi cm^2 6.51522 0.775684 0.76254 0.199615 0.621068 0.17418 mean squared structural length of post-natals
L3_bi cm^3 18.2569 1.91355 1.13695 0.359308 0.872869 0.310004 mean cubed structural length of post-natals
Ww_bi g 49.6958 5.27459 4.16961 1.31771 3.99625 1.41929 mean wet weight of post-natals
L_pi cm 2.43347 0.70638 0.73713 0.408562 0.671122 0.400896 mean structural length of adults
L2_pi cm^2 6.5413 1.25391 0.828527 0.38358 0.692592 0.356614 mean squared structural length of adults
L3_pi cm^3 18.3301 3.10591 1.2366 0.705496 0.97507 0.652498 mean cubed structural length of adults
Ww_pi g 49.895 8.56129 4.53507 2.58732 4.46415 2.98732 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.17331 0.021042 0.0314492 0.00822327 0.0343763 0.00962809 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 0.108474 0.0332265 0.103446 0.0328581 yield of living structure on food
Y_VX_d mol/mol 0.0221809 0.0456341 0.000211553 0.0673059 9.55878e-05 0.064872 yield of dead structure on food
Y_EX mol/mol 0 0 0.289341 0.0886273 0.37016 0.117576 yield of living reserve on food
Y_EX_d mol/mol 0.0381962 0.0801538 0.000564291 0.17953 0.000342041 0.232131 yield of dead reserve on food
Y_CX mol/mol 0.830248 0.764837 0.492034 0.521936 0.416581 0.443188 yield of CO2 on food
Y_HX mol/mol 0.597317 0.550258 0.353991 0.375504 0.299707 0.318849 yield of H2O on food
Y_OX mol/mol -0.902895 -0.83176 -0.535087 -0.567605 -0.453032 -0.481967 yield of O2 on food
Y_NX mol/mol 0.124537 0.114726 0.0738051 0.0782904 0.0624871 0.0664782 yield of N-waste on food
mu_TX J/mol 440402 405598 258709 274748 216953 231296 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