Valvata utahensis: Population traits

at T = 19 °C with background hazards for embryo, larva, juv, adult: 0, 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 abj f_minf f_max date: 2025/05/23
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.241338 0.307161 0.65358 0.65358 1 1 scaled functional response
r 1/d 0 0 0.0285901 0.00458943 0.0446907 0.00637469 spec pop growth rate
t2 d NaN NaN 24.2443 151.031 15.5099 108.734 population doubling time
a_b d 6.84466 6.59841 5.96092 5.96092 5.69566 5.69566 age at birth
t_j d 0.474053 0.390531 0.237085 0.237085 0.192498 0.192498 time since birth at metam
t_p d 257.569 131.785 42.9091 42.9091 30.6678 30.6678 time since birth at puberty
S_b - 0.999995 0.999996 0.999997 0.999997 0.999997 0.999997 survival probability at birth
S_j - 0.999994 0.959516 0.999996 0.944994 0.999997 0.941193 survival probability at metam
S_p - 0.999965 0.668068 0.999982 0.464817 0.999985 0.392314 survival probability at puberty
theta_0b - 0.0171745 0.0617001 0.15686 0.24727 0.224751 0.347501 frac of ind that is embryo
theta_bj - 0.00119044 0.00357973 0.00570488 0.00942985 0.00664316 0.0111864 frac of ind between b and j
theta_jp - 0.0159976 0.0462277 0.12662 0.152111 0.16764 0.195723 frac of ind between j and p
theta_pi - 0.965638 0.888492 0.710815 0.591189 0.600965 0.445589 frac of ind that is adult
L_bi cm 0.0505546 0.0614568 0.0817702 0.090422 0.0868305 0.0978751 mean structural length of post-natals
L2_bi cm^2 0.00256968 0.0038623 0.00762221 0.00981362 0.00916637 0.0133493 mean squared structural length of post-natals
L3_bi cm^3 0.000131155 0.000246363 0.000780995 0.00118315 0.00112444 0.00221721 mean cubed structural length of post-natals
Ww_bi g 0.00019059 0.000388456 0.00173947 0.00263517 0.00323583 0.00638052 mean wet weight of post-natals
L_pi cm 0.0508603 0.0629626 0.0897024 0.104629 0.100028 0.12464 mean structural length of adults
L2_pi cm^2 0.00259556 0.0040115 0.00875242 0.0120869 0.011321 0.0187829 mean squared structural length of adults
L3_pi cm^3 0.000132825 0.00025783 0.000914822 0.00149038 0.00142902 0.0032149 mean cubed structural length of adults
Ww_pi g 0.000193017 0.000406538 0.00203754 0.00331945 0.00411234 0.00925161 mean wet weight of adults
R 1/d 0.00629712 0.0148924 0.0537901 0.0812544 0.0746041 0.146617 mean reproduction rate of adults
J_X g/d 3.45362e-05 6.62619e-05 0.000279666 0.00036007 0.000515276 0.000750409 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 0.0798407 0.0150804 0.0975242 0.0188351 yield of living structure on food
Y_VX_d mol/mol 0.0104452 0.019982 0.000328085 0.0317198 0.000116831 0.0368078 yield of dead structure on food
Y_EX mol/mol 0 0 0.0979843 0.0185073 0.183124 0.0353672 yield of living reserve on food
Y_EX_d mol/mol 0.00473343 0.0115249 0.000402642 0.0389281 0.000219377 0.0691152 yield of dead reserve on food
Y_CX mol/mol 0.766071 0.749743 0.602694 0.677014 0.500265 0.621125 yield of CO2 on food
Y_HX mol/mol 0.553274 0.541481 0.435279 0.488955 0.361303 0.44859 yield of H2O on food
Y_OX mol/mol -0.833103 -0.815346 -0.65543 -0.736253 -0.544039 -0.675473 yield of O2 on food
Y_NX mol/mol 0.114911 0.112461 0.0904041 0.101552 0.0750398 0.0931687 yield of N-waste on food
mu_TX J/mol 412174 403670 325803 365010 270340 334713 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