Daphnia pulex: Population traits

at T = 20 °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: 2024/01/07
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.231864 0.234228 0.617114 0.617114 1 1 scaled functional response
r 1/d 0 0 0.178198 0.0921524 0.276839 0.125119 spec pop growth rate
t2 d NaN NaN 3.88976 7.52175 2.50379 5.5399 population doubling time
a_b d 3.02524 3.02033 2.6071 2.6071 2.45125 2.45125 age at birth
t_p d 53.5873 52.1301 10.063 10.063 6.62167 6.62167 time since birth at puberty
S_b - 0.999866 0.999867 0.999915 0.999915 0.999929 0.999929 survival probability at birth
S_p - 0.998858 0.966734 0.999459 0.595629 0.999596 0.478118 survival probability at puberty
theta_0b - 0.0558493 0.0611562 0.372376 0.401949 0.492898 0.508489 frac of ind that is embryo
theta_bp - 0.0558832 0.0601533 0.23404 0.244613 0.250078 0.261403 fraction of individuals that is juvenile
theta_pi - 0.888267 0.87869 0.393584 0.353439 0.257025 0.230108 frac of ind that is adult
L_bi cm 0.0327251 0.0329829 0.0484976 0.0488138 0.0519807 0.0523376 mean structural length of post-natals
L2_bi cm^2 0.00107112 0.00108815 0.00249309 0.00256412 0.00295846 0.00309444 mean squared structural length of post-natals
L3_bi cm^3 3.50644e-05 3.59082e-05 0.00013579 0.000144971 0.000185167 0.000208963 mean cubed structural length of post-natals
Ww_bi g 5.72035e-05 5.88112e-05 0.000363978 0.000388587 0.00068939 0.000777982 mean wet weight of post-natals
L_pi cm 0.032798 0.0330762 0.0553021 0.0571143 0.064075 0.0673658 mean structural length of adults
L2_pi cm^2 0.00107581 0.00109419 0.00315459 0.00339518 0.00429787 0.00485253 mean squared structural length of adults
L3_pi cm^3 3.52915e-05 3.62018e-05 0.000185778 0.000210174 0.00030309 0.000376057 mean cubed structural length of adults
Ww_pi g 5.75739e-05 5.92921e-05 0.000497967 0.000563358 0.00112842 0.00140009 mean wet weight of adults
R 1/d 0.114574 0.117864 0.673474 0.737048 1.04422 1.22029 mean reproduction rate of adults
J_X g/d 4.32975e-05 4.44344e-05 0.000268223 0.000275865 0.000515772 0.000539478 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 0.0902144 0.0484275 0.0993877 0.0484639 yield of living structure on food
Y_VX_d mol/mol 0.0162549 0.0178102 0.00065719 0.0437309 0.000233468 0.050849 yield of dead structure on food
Y_EX mol/mol 0 0 0.1516 0.0813798 0.27064 0.131971 yield of living reserve on food
Y_EX_d mol/mol 0.0102631 0.0113597 0.00110437 0.0734874 0.000635749 0.138465 yield of dead reserve on food
Y_CX mol/mol 0.864107 0.861455 0.647049 0.643599 0.519728 0.520876 yield of CO2 on food
Y_HX mol/mol 0.623117 0.621205 0.466594 0.464107 0.374782 0.37561 yield of H2O on food
Y_OX mol/mol -0.939716 -0.936832 -0.703666 -0.699914 -0.565205 -0.566453 yield of O2 on food
Y_NX mol/mol 0.129616 0.129218 0.0970573 0.0965399 0.0779593 0.0781314 yield of N-waste on food
mu_TX J/mol 458728 457347 343077 341244 273488 274104 yield of heat on food

Remarks

  • Reprod-code A applies. Data concerns population of females only.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer