Daphnia galatea: Population traits

at T = 17.5 °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: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.213994 0.217416 0.608708 0.608708 1 1 scaled functional response
r 1/d 0 0 0.175327 0.0814761 0.265582 0.106446 spec pop growth rate
t2 d NaN NaN 3.95345 8.50736 2.60992 6.51173 population doubling time
a_b d 2.94191 2.93454 2.52413 2.52413 2.38196 2.38196 age at birth
t_p d 57.8583 55.3945 9.81149 9.81149 6.59439 6.59439 time since birth at puberty
S_b - 0.99992 0.999921 0.99995 0.99995 0.999958 0.999958 survival probability at birth
S_p - 0.999309 0.949096 0.999689 0.554347 0.999765 0.444418 survival probability at puberty
theta_0b - 0.048272 0.0555162 0.358094 0.397479 0.468935 0.497764 frac of ind that is embryo
theta_bp - 0.0483056 0.0540673 0.230088 0.241177 0.249129 0.259525 fraction of individuals that is juvenile
theta_pi - 0.903422 0.890416 0.411818 0.361344 0.281936 0.242711 frac of ind that is adult
L_bi cm 0.0116982 0.0118483 0.0181546 0.0183533 0.0195407 0.0197496 mean structural length of post-natals
L2_bi cm^2 0.000136889 0.000140448 0.000353847 0.000369663 0.000425912 0.000455196 mean squared structural length of post-natals
L3_bi cm^3 1.60232e-06 1.66561e-06 7.38431e-06 8.14226e-06 1.03717e-05 1.2333e-05 mean cubed structural length of post-natals
Ww_bi g 2.44632e-06 2.55699e-06 1.84483e-05 2.03419e-05 3.59013e-05 4.26902e-05 mean wet weight of post-natals
L_pi cm 0.0117309 0.0118927 0.0208755 0.0218129 0.0242572 0.0259002 mean structural length of adults
L2_pi cm^2 0.000137638 0.000141471 0.000452235 0.000499786 0.00062159 0.000729548 mean squared structural length of adults
L3_pi cm^3 1.61515e-06 1.6833e-06 1.01718e-05 1.20187e-05 1.6901e-05 2.24656e-05 mean cubed structural length of adults
Ww_pi g 2.46591e-06 2.58414e-06 2.54123e-05 3.00266e-05 5.85023e-05 7.77638e-05 mean wet weight of adults
R 1/d 0.0928947 0.0970913 0.597028 0.676837 0.892777 1.10436 mean reproduction rate of adults
J_X g/d 1.62373e-06 1.69259e-06 1.1939e-05 1.24727e-05 2.36082e-05 2.52315e-05 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 0.10844 0.0531883 0.116677 0.0520302 yield of living structure on food
Y_VX_d mol/mol 0.0175484 0.0200628 0.00057048 0.0541168 0.000206532 0.0610205 yield of dead structure on food
Y_EX mol/mol 0 0 0.162477 0.0796928 0.287197 0.12807 yield of living reserve on food
Y_EX_d mol/mol 0.00924344 0.0107368 0.000854758 0.081084 0.000508371 0.1502 yield of dead reserve on food
Y_CX mol/mol 0.863833 0.859825 0.618282 0.622543 0.486036 0.499304 yield of CO2 on food
Y_HX mol/mol 0.62292 0.62003 0.44585 0.448923 0.350486 0.360054 yield of H2O on food
Y_OX mol/mol -0.939419 -0.93506 -0.672382 -0.677016 -0.528565 -0.542993 yield of O2 on food
Y_NX mol/mol 0.129575 0.128974 0.0927423 0.0933815 0.0729055 0.0748956 yield of N-waste on food
mu_TX J/mol 458642 456563 328162 330420 255820 262926 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