Discus ruderatus: Population traits

at T = 21.5 °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: 2024/11/08
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.237323 0.334868 0.667434 0.667434 1 1 scaled functional response
r 1/d 0 0 0.0122043 0.00124854 0.0149762 0.00141893 spec pop growth rate
t2 d NaN NaN 56.7953 555.165 46.2833 488.501 population doubling time
a_b d 20.3521 19.724 18.8574 18.8574 18.5371 18.5371 age at birth
t_j d 0.0340891 0.0287881 0.0229985 0.0229985 0.0212141 0.0212141 time since birth at metam
t_p d 213.339 96.5372 49.2647 49.2647 41.0363 41.0363 time since birth at puberty
S_b - 0.999992 0.999993 0.999994 0.999994 0.999994 0.999994 survival probability at birth
S_j - 0.999992 0.998229 0.999994 0.997532 0.999994 0.997336 survival probability at metam
S_p - 0.999907 0.57456 0.999955 0.394535 0.999961 0.342231 survival probability at puberty
theta_0b - 0.0336056 0.0895599 0.206456 0.25455 0.242804 0.340982 frac of ind that is embryo
theta_bj - 5.63055e-05 0.000130637 0.000223936 0.000306484 0.000241074 0.000384655 frac of ind between b and j
theta_jp - 0.0335586 0.0662441 0.163815 0.152919 0.183727 0.191155 frac of ind between j and p
theta_pi - 0.932779 0.844065 0.629506 0.592225 0.573228 0.467479 frac of ind that is adult
L_bi cm 0.0351552 0.0477888 0.0670326 0.0756934 0.0773166 0.0891839 mean structural length of post-natals
L2_bi cm^2 0.0012377 0.0023113 0.00493731 0.0063798 0.0069805 0.00992415 mean squared structural length of post-natals
L3_bi cm^3 4.363e-05 0.000112748 0.000389235 0.000572135 0.0007055 0.00124687 mean cubed structural length of post-natals
Ww_bi g 0.000156288 0.000523535 0.00321577 0.00472686 0.00838145 0.014813 mean wet weight of post-natals
L_pi cm 0.0353693 0.0490321 0.0748355 0.0859448 0.0896073 0.110309 mean structural length of adults
L2_pi cm^2 0.0012515 0.00241213 0.00585924 0.00768768 0.00872091 0.0133963 mean squared structural length of adults
L3_pi cm^3 4.42992e-05 0.000118993 0.000476678 0.000707351 0.000911536 0.00173431 mean cubed structural length of adults
Ww_pi g 0.000158685 0.000552534 0.00393821 0.00584398 0.0108292 0.0206039 mean wet weight of adults
R 1/d 0.00173219 0.0052773 0.0150615 0.0221547 0.0213351 0.0398557 mean reproduction rate of adults
J_X g/d 2.08806e-05 5.50324e-05 0.000234363 0.000302835 0.000496484 0.000705849 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 0.0202692 0.00235883 0.0212811 0.0025065 yield of living structure on food
Y_VX_d mol/mol 0.00369768 0.00660288 0.000244035 0.0085318 0.000145029 0.00877732 yield of dead structure on food
Y_EX mol/mol 0 0 0.14719 0.0171293 0.231541 0.0272711 yield of living reserve on food
Y_EX_d mol/mol 0.00954785 0.024057 0.00177213 0.0619561 0.00157793 0.0954986 yield of dead reserve on food
Y_CX mol/mol 0.877379 0.859965 0.721149 0.800649 0.63608 0.756571 yield of CO2 on food
Y_HX mol/mol 0.633663 0.621086 0.52083 0.578246 0.459391 0.546413 yield of H2O on food
Y_OX mol/mol -0.95415 -0.935212 -0.78425 -0.870706 -0.691737 -0.822771 yield of O2 on food
Y_NX mol/mol 0.131607 0.128995 0.108172 0.120097 0.0954119 0.113486 yield of N-waste on food
mu_TX J/mol 465400 455967 380314 423558 333571 399335 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