Pomacea canaliculata: Population traits

at T = 23 °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 std f_min f_max date: 2025/05/23
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.0690266 0.0690266 0.0710068 0.0710068 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0435931 0.0435931 0.0100954 0.0100954 spec pop growth rate
t2 d NaN NaN NaN NaN 15.9004 15.9004 68.6594 68.6594 population doubling time
a_b d 16.8951 17.0666 16.8297 16.999 13.8244 13.8495 13.8244 13.8495 age at birth
t_p d 872.127 NaN 685.045 NaN 44.1432 44.6561 44.1432 44.6561 time since birth at puberty
S_b - 0.999998 0.999998 0.999998 0.999998 0.999999 0.999999 0.999999 0.999999 survival probability at birth
S_p - 0.999983 0.99998 0.703424 0.735598 0.999994 0.999994 0.28289 0.285363 survival probability at puberty
theta_0b - 0.0160848 0.016713 0.0411676 0.0377367 0.452597 0.4532 0.555358 0.55312 frac of ind that is embryo
theta_bp - 0.0161006 0.0167329 0.0342208 0.0321129 0.247781 0.247836 0.259564 0.259487 fraction of individuals that is juvenile
theta_pi - 0.967815 0.966554 0.924612 0.93015 0.299622 0.298963 0.185078 0.187393 frac of ind that is adult
L_bi cm 0.217193 0.202466 0.220645 0.20628 0.345274 0.342307 0.330603 0.329855 mean structural length of post-natals
L2_bi cm^2 0.0473294 0.0410991 0.0490079 0.042759 0.154643 0.151301 0.173414 0.171352 mean squared structural length of post-natals
L3_bi cm^3 0.0103398 0.00835993 0.0109387 0.00889666 0.0887951 0.0853618 0.148424 0.143528 mean cubed structural length of post-natals
Ww_bi g 0.0245284 0.019031 0.0263797 0.0205787 1.85401 1.6639 3.09903 2.79768 mean wet weight of post-natals
L_pi cm 0.218326 0.203432 0.223287 0.208324 0.463893 0.459253 0.522775 0.519153 mean structural length of adults
L2_pi cm^2 0.0477462 0.0414374 0.0499951 0.0434872 0.247747 0.242082 0.362302 0.355256 mean squared structural length of adults
L3_pi cm^3 0.0104564 0.00844972 0.0112195 0.00909336 0.154757 0.148714 0.345353 0.331277 mean cubed structural length of adults
Ww_pi g 0.0248048 0.0192354 0.0270569 0.0210336 3.23128 2.89877 7.21086 6.45734 mean wet weight of adults
R 1/d 0.00608057 0 0.0113507 0 0.231168 0.236277 0.46779 0.477674 mean reproduction rate of adults
J_X g/d 0.00439628 0.00355115 0.00468278 0.00380056 0.208098 0.189391 0.233358 0.21449 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.21875 0.21875 0.21875 0.21875 0.21875 0.21875 0.21875 0.21875 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0186012 0.0196482 0.00642105 0.00675544 yield of living structure on food
Y_VX_d mol/mol 0.00238526 0.00244698 0.00415036 0.00407017 1.36562e-06 1.55107e-06 0.0107116 0.0112238 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.369784 0.363339 0.127648 0.124923 yield of living reserve on food
Y_EX_d mol/mol 0.00327311 0.00312347 0.00585861 0.00534445 2.7148e-05 2.86828e-05 0.212942 0.207554 yield of dead reserve on food
Y_CX mol/mol 0.775592 0.77568 0.771241 0.771835 0.392836 0.398232 0.423527 0.430793 yield of CO2 on food
Y_HX mol/mol 0.56015 0.560213 0.557007 0.557437 0.283715 0.287612 0.305881 0.311128 yield of H2O on food
Y_OX mol/mol -0.843456 -0.843552 -0.838725 -0.839371 -0.427209 -0.433078 -0.460586 -0.468488 yield of O2 on food
Y_NX mol/mol 0.116339 0.116352 0.115686 0.115775 0.0589254 0.0597348 0.0635291 0.064619 yield of N-waste on food
mu_TX J/mol 417007 417059 414703 415025 207303 210323 224109 228148 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer