Ballerus sapa: 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 - 0.406797 0.406797 0.703399 0.703399 1 1 scaled functional response
r 1/d 0 0 0.00461797 0.00134647 0.00621206 0.00174212 spec pop growth rate
t2 d NaN NaN 150.098 514.787 111.581 397.876 population doubling time
a_b d 20.7505 20.7505 19.437 19.437 18.7937 18.7937 age at birth
t_j d 0.0122319 0.0122319 0.00917315 0.00917315 0.00793656 0.00793656 time since birth at metam
t_p d 5777.28 5777.28 1784.84 1784.84 1342.43 1342.43 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.999122 1 0.999114 1 0.99911 survival probability at metam
S_p - 0.999998 0.448915 0.999999 0.379875 0.999999 0.346393 survival probability at puberty
theta_0b - 0.00302897 0.284004 0.085783 0.408303 0.110089 0.442773 frac of ind that is embryo
theta_bj - 1.78753e-06 0.00016753 3.87314e-05 0.000190289 4.38764e-05 0.000184066 frac of ind between b and j
theta_jp - 0.00303062 0.190075 0.0784555 0.245425 0.0980218 0.252764 frac of ind between j and p
theta_pi - 0.993939 0.525754 0.835723 0.346082 0.791846 0.304279 frac of ind that is adult
L_bi cm 1.66331 0.508117 0.499323 0.227895 0.460368 0.218979 mean structural length of post-natals
L2_bi cm^2 2.96931 0.647459 0.391358 0.12905 0.340977 0.118749 mean squared structural length of post-natals
L3_bi cm^3 5.45194 1.07691 0.409288 0.153179 0.348166 0.144582 mean cubed structural length of post-natals
Ww_bi g 15.0935 2.9814 1.66084 0.621583 1.86175 0.773125 mean wet weight of post-natals
L_pi cm 1.66812 0.661032 0.537564 0.326546 0.505646 0.32554 mean structural length of adults
L2_pi cm^2 2.97834 0.879058 0.427303 0.214919 0.382068 0.21045 mean squared structural length of adults
L3_pi cm^3 5.46857 1.46635 0.447652 0.261362 0.391172 0.264106 mean cubed structural length of adults
Ww_pi g 15.1396 4.05956 1.81652 1.06058 2.09171 1.41226 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.086718 0.0189089 0.019763 0.00651684 0.0244795 0.00852524 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 0.0956372 0.031649 0.0883524 0.0295451 yield of living structure on food
Y_VX_d mol/mol 0.0125735 0.0286426 5.17659e-05 0.0601454 2.30816e-05 0.0559298 yield of dead structure on food
Y_EX mol/mol 0 0 0.292448 0.096779 0.384095 0.128442 yield of living reserve on food
Y_EX_d mol/mol 0.0222358 0.0506536 0.000158294 0.183918 0.000100343 0.243144 yield of dead reserve on food
Y_CX mol/mol 0.855816 0.811329 0.50233 0.518134 0.418054 0.433564 yield of CO2 on food
Y_HX mol/mol 0.615712 0.583706 0.361398 0.372768 0.300767 0.311925 yield of H2O on food
Y_OX mol/mol -0.9307 -0.88232 -0.546284 -0.56347 -0.454634 -0.471501 yield of O2 on food
Y_NX mol/mol 0.128372 0.121699 0.0753495 0.07772 0.0627081 0.0650346 yield of N-waste on food
mu_TX J/mol 453984 430319 263722 272219 217005 225390 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