Viviparus viviparus: Population traits

at T = 18 °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 - 0.477619 0.587478 0.793739 0.793739 1 1 scaled functional response
r 1/d 0 0 0.00215173 0.000319663 0.00309478 0.000517062 spec pop growth rate
t2 d NaN NaN 322.135 2168.37 223.973 1340.55 population doubling time
a_b d 30.3906 29.3487 27.8868 27.8868 26.813 26.813 age at birth
t_p d 3866.92 1714.6 983.325 983.325 714.216 714.216 time since birth at puberty
S_b - 0.999997 0.999997 0.999997 0.999997 0.999998 0.999998 survival probability at birth
S_p - 0.999979 0.788965 0.999984 0.736216 0.999986 0.693762 survival probability at puberty
theta_0b - 0.00620156 0.0733699 0.0583342 0.129348 0.0796225 0.167628 frac of ind that is embryo
theta_bp - 0.00621844 0.0652841 0.055034 0.110153 0.0733901 0.137867 fraction of individuals that is juvenile
theta_pi - 0.98758 0.861346 0.886632 0.7605 0.846987 0.694505 frac of ind that is adult
L_bi cm 0.793451 0.67918 0.615585 0.622733 0.605005 0.603719 mean structural length of post-natals
L2_bi cm^2 0.663879 0.580308 0.467832 0.556748 0.465285 0.564421 mean squared structural length of post-natals
L3_bi cm^3 0.572077 0.560119 0.415423 0.62382 0.431457 0.711615 mean cubed structural length of post-natals
Ww_bi g 0.631075 0.63117 0.486621 0.730734 0.524618 0.865269 mean wet weight of post-natals
L_pi cm 0.797065 0.713869 0.639758 0.680282 0.637516 0.67815 mean structural length of adults
L2_pi cm^2 0.667756 0.620568 0.493691 0.630015 0.501013 0.666047 mean squared structural length of adults
L3_pi cm^3 0.575613 0.601745 0.440487 0.712507 0.467782 0.850483 mean cubed structural length of adults
Ww_pi g 0.634975 0.678076 0.51598 0.834621 0.568786 1.03412 mean wet weight of adults
R 1/d 0 0 0 0.00477843 0.00357791 0.0121371 mean reproduction rate of adults
J_X g/d 0.00519167 0.00558196 0.00608002 0.00723558 0.00761826 0.00924146 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 0.147019 0.0275599 0.175272 0.039815 yield of living structure on food
Y_VX_d mol/mol 0.0314069 0.0630373 0.00157886 0.0750161 0.000763863 0.085257 yield of dead structure on food
Y_EX mol/mol 0 0 0.025197 0.00472338 0.037845 0.00859696 yield of living reserve on food
Y_EX_d mol/mol 0.00323895 0.00799625 0.000270594 0.0128567 0.000164935 0.0184089 yield of dead reserve on food
Y_CX mol/mol 0.746604 0.710216 0.607185 0.661094 0.567205 0.629172 yield of CO2 on food
Y_HX mol/mol 0.539214 0.512934 0.438522 0.477457 0.409648 0.454402 yield of H2O on food
Y_OX mol/mol -0.811932 -0.77236 -0.660313 -0.71894 -0.616835 -0.684225 yield of O2 on food
Y_NX mol/mol 0.111991 0.106532 0.0910777 0.0991641 0.0850807 0.0943758 yield of N-waste on food
mu_TX J/mol 402515 384083 331694 359043 311077 342611 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