Coccinella septempunctata: Population traits

at T = 25 °C with background hazards for embryo, juv, adult: 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 abp f_minf f_max date: 2025/07/04
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.0645923 0.0742956 0.537148 0.537148 1 1 scaled functional response
r 1/d 0 0 0.526805 0.0233037 0.576611 0.0214346 spec pop growth rate
t2 d NaN NaN 1.31576 29.7441 1.2021 32.3378 population doubling time
a_b d 4.45346 4.38358 3.87379 3.87379 3.82585 3.82585 age at birth
t_p d 263.051 93.2032 15.2392 15.2392 13.9513 13.9513 time since birth at puberty
S_b - 0.999872 0.999879 0.999924 0.999924 0.999927 0.999927 survival probability at birth
S_p - 0.998377 0.664309 0.999618 0.0792994 0.999654 0.0643014 survival probability at puberty
theta_0b - 0.0571521 0.292033 0.870082 0.733 0.889877 0.746438 frac of ind that is embryo
theta_bp - 0.0571333 0.239775 0.113043 0.247558 0.0979986 0.238451 fraction of individuals that is juvenile
theta_pi - 0.885715 0.468192 0.0168747 0.0194413 0.0121248 0.015111 frac of ind that is adult
L_bi cm 0.0337265 0.029745 0.0372114 0.0324949 0.0375364 0.032824 mean structural length of post-natals
L2_bi cm^2 0.00141391 0.0011502 0.00220443 0.0014648 0.00224982 0.00149964 mean squared structural length of post-natals
L3_bi cm^3 8.38134e-05 8.45787e-05 0.00033159 0.00018476 0.000344737 0.000192852 mean cubed structural length of post-natals
Ww_bi g 0.000267242 0.00029749 0.00636647 0.00354736 0.0120252 0.00672715 mean wet weight of post-natals
L_pi cm 0.034601 0.0340532 0.0858495 0.0778169 0.092754 0.084624 mean structural length of adults
L2_pi cm^2 0.00147886 0.00150583 0.0106215 0.00889822 0.0123109 0.0105642 mean squared structural length of adults
L3_pi cm^3 8.86902e-05 0.000122899 0.00233975 0.00217591 0.00284626 0.00274761 mean cubed structural length of adults
Ww_pi g 0.000282792 0.000432275 0.0449229 0.0417772 0.0992842 0.0958433 mean wet weight of adults
R 1/d 0 0 3.14218 2.68747 2.72863 2.56815 mean reproduction rate of adults
J_X g/d 0.00021565 0.000246915 0.00639608 0.00356385 0.0122868 0.00687346 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 0.0273109 0.00120813 0.0161783 0.000601401 yield of living structure on food
Y_VX_d mol/mol 0.0113678 0.0267296 1.64558e-05 0.0174995 1.11993e-05 0.01051 yield of dead structure on food
Y_EX mol/mol 0 0 0.497055 0.0219877 0.548159 0.0203769 yield of living reserve on food
Y_EX_d mol/mol 0.024879 0.0672866 0.000299493 0.318489 0.000379458 0.356102 yield of dead reserve on food
Y_CX mol/mol 0.694182 0.647245 0.297329 0.431796 0.264791 0.408715 yield of CO2 on food
Y_HX mol/mol 0.744258 0.693935 0.318777 0.462944 0.283892 0.438199 yield of H2O on food
Y_OX mol/mol -0.881078 -0.821503 -0.377379 -0.548048 -0.336081 -0.518754 yield of O2 on food
Y_NX mol/mol 0.160196 0.149364 0.0686143 0.0996452 0.0611056 0.0943189 yield of N-waste on food
mu_TX J/mol 445315 414839 181943 271021 159727 255278 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