Pomacea urceus: Population traits

at T = 30.5 °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_minf f_max date: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.207568 0.278969 0.639485 0.639485 1 1 scaled functional response
r 1/d 0 0 0.0147174 0.00112843 0.0183264 0.00131328 spec pop growth rate
t2 d NaN NaN 47.0972 614.259 37.8223 527.797 population doubling time
a_b d 13.0136 12.6107 11.8274 11.8274 11.5732 11.5732 age at birth
t_p d 411.238 157.212 69.3781 69.3781 57.4556 57.4556 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_p - 0.999997 0.472834 0.999998 0.346519 0.999998 0.311483 survival probability at puberty
theta_0b - 0.00968222 0.0794264 0.159763 0.299701 0.191101 0.385312 frac of ind that is embryo
theta_bp - 0.00968637 0.0538756 0.134266 0.172544 0.154605 0.210535 fraction of individuals that is juvenile
theta_pi - 0.980631 0.866698 0.705971 0.527755 0.654294 0.404154 frac of ind that is adult
L_bi cm 0.640437 0.807461 0.976602 1.18231 1.06127 1.25251 mean structural length of post-natals
L2_bi cm^2 0.412606 0.676822 1.16266 1.86948 1.4772 2.61692 mean squared structural length of post-natals
L3_bi cm^3 0.266807 0.577932 1.57495 3.33714 2.47422 6.79444 mean cubed structural length of post-natals
Ww_bi g 0.643086 1.67337 8.41799 17.8368 19.2851 52.9588 mean wet weight of post-natals
L_pi cm 0.643634 0.837339 1.0917 1.45212 1.22107 1.71358 mean structural length of adults
L2_pi cm^2 0.415683 0.712177 1.35696 2.43802 1.79028 3.9078 mean squared structural length of adults
L3_pi cm^3 0.269121 0.61161 1.86408 4.41222 3.04427 10.3057 mean cubed structural length of adults
Ww_pi g 0.648665 1.77088 9.96339 23.583 23.7284 80.3274 mean wet weight of adults
R 1/d 0.00173177 0.0152782 0.0417125 0.0985162 0.0514579 0.167241 mean reproduction rate of adults
J_X g/d 0.0927197 0.204412 0.804931 1.29428 1.59925 2.83313 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 yield of faeces on food
Y_VX mol/mol 0 0 0.0287963 0.00290952 0.028353 0.00314953 yield of living structure on food
Y_VX_d mol/mol 0.00226774 0.00514117 2.02946e-05 0.00757591 1.06116e-05 0.00782323 yield of dead structure on food
Y_EX mol/mol 0 0 0.125118 0.0126417 0.192643 0.0213993 yield of living reserve on food
Y_EX_d mol/mol 0.00319821 0.00974478 8.81787e-05 0.0329168 7.21e-05 0.0531545 yield of dead reserve on food
Y_CX mol/mol 0.775784 0.766364 0.627227 0.725206 0.560171 0.695723 yield of CO2 on food
Y_HX mol/mol 0.560288 0.553485 0.452997 0.52376 0.404568 0.502467 yield of H2O on food
Y_OX mol/mol -0.843665 -0.833421 -0.682109 -0.788662 -0.609186 -0.756599 yield of O2 on food
Y_NX mol/mol 0.116368 0.114955 0.094084 0.108781 0.0840257 0.104359 yield of N-waste on food
mu_TX J/mol 417107 412070 336728 389700 299825 373509 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