Onthophagus taurus (Bull headed dung beetle):  

Parameter values for this entry

Model:  hex  

Primary parameters at reference temperature (20 deg. C)
symbol value units description
p_Am 975.391 J/d.cm^2{p_Am}, spec assimilation flux
F_m 6.5 l/d.cm^2{F_m}, max spec searching rate
kap_X 0.5 -digestion efficiency of food to reserve
kap_P 0.3 -faecation efficiency of food to faeces
v 0.010142 cm/denergy conductance
kap 0.56143 -allocation fraction to soma
kap_R 0.95 -reproduction efficiency
kap_V 0.146 -conversion efficient E -> V -> E
p_M 419.403 J/d.cm^3[p_M], vol-spec somatic maint
p_T 0 J/d.cm^2{p_T}, surf-spec somatic maint
k_J 0.002 1/dmaturity maint rate coefficient
E_G 4444.73 J/cm^3[E_G], spec cost for structure
E_Hb 20.81 Jmaturity at birth
s_j 0.98148 -reprod buffer/structure at pupation as fraction of max
E_He 3.075e-07 Jmaturity at emergence
h_a 0.01738 1/d^2Weibull aging acceleration
s_G 1 -Gompertz stress coefficient
Parameters specific for this entry at reference temperature (20 deg. C)
symbol value units description
E_Rj 24317.3 J/cm^3reproduction buffer density at emergence
T_AH 45000 KHigh Boundary Arrhenius temperature
T_AL 40000 KLow Boundary Arrhenius temperature
T_H 321.05 KCTmax for Arrhenius temperature_Hemmings PhD data
T_L 275.65 KCTmin for Arrhenius temperature_Dodgy data
del_M 0.71896 -shape coefficient for head capsule of larva
f 1 -scaled functional response for 0-var data
f_4 0.23924 -scaled functional response for instar 4 data
f_tW 1 -scaled functional response for tW data
s_1 1.4506 -stress at instar 1: L_1^2/ L_b^2
s_2 2.3141 -stress at instar 2: L_2^2/ L_1^2
s_3 2.1945 -stress at instar 3: L_3^2/ L_2^2
Temperature parameters
symbol value units description
T_A 8000 KArrhenius temperature
T_ref 293.15 KReference temperature
Chemical parameters
Food Structure Reserve Faeces
Chemical potentials (J/C-mol) 525000 500000 550000480000
Specific density for dry weight (g/cm^3) 0.17 0.17 0.170.17
Food Structure Reserve Faeces
Chemical indices for organicsCarbon 1 111
Hydrogen 1.8
Oxygen 0.5
Nitrogen 0.15
Chemical indices for mineralsCarbon 1 000
Hydrogen 0 203
Oxygen 2 120
Nitrogen 0 001