Arctocephalus pusillus

COMPLETE = 2.5; MRE = 0.075; SMAE = 0.079; SMSE = 0.017

Data & predictions

data prd RE symbol units description
368 386.1 0.04929 tg d gestation time
354 354.8 0.002346 tx d time since birth at weaning
1276 1285 0.007362 tp d time since birth at puberty
1643 1550 0.05671 tpm d time since birth at puberty
1.172e+04 1.168e+04 0.003383 am d life span
5000 4902 0.01969 Wwb g wet weight at birth
5.5e+04 5.468e+04 0.005815 Wwi g ultimate wet weight for females
2.3e+05 2.222e+05 0.03409 Wwim g ultimate wet weight for males
0.00274 0.00276 0.007227 Ri #/d maximum reprod rate
see figure 0.195 tW_f time since birth vs. weight
see figure 0.1873 tW_m time since birth vs. weight
see figure 0.2483 tJX time since birth vs. milk energy intake
see figure 0.0681 tL_m time since birth vs. standard body length
0.02 0.01613 0.1935 psd.v cm/d energy conductance
0.8 0.7036 0.1205 psd.kap - allocation fraction to soma
0.95 0.95 0 psd.kap_R - reproduction efficiency
18 16.13 0.1038 psd.p_M J/d.cm^3 vol-spec som maint
0.002 0.002 0 psd.k_J 1/d maturity maint rate coefficient
0.8 0.7997 0.0003173 psd.kap_G - growth efficiency

stx parameters at 20.0°C

symbol units value free description
T_ref K 293.1 0 Reference temperature
T_A K 8000 0 Arrhenius temperature
z - 21.58 1 zoom factor for females
F_m l/d.cm^2 6.5 0 {F_m}, max spec searching rate
kap_X - 0.0387 1 digestion efficiency of food to reserve
kap_P - 0.1 0 faecation efficiency of food to faeces
v cm/d 0.01613 1 energy conductance
kap - 0.7036 1 allocation fraction to soma
kap_R - 0.95 0 reproduction efficiency
p_M J/d.cm^3 16.13 1 [p_M], vol-spec somatic maint
p_T J/d.cm^2 0 0 {p_T}, surf-spec somatic maint
k_J 1/d 0.002 0 maturity maint rate coefficient
E_G J/cm^3 7848 1 [E_G], spec cost for structure
E_Hb J 3.019e+06 1 maturity at birth
E_Hx J 7.026e+06 1 maturity at weaning
E_Hp J 1.843e+07 1 maturity at puberty for females
h_a 1/d^2 7.628e-12 1 Weibull aging acceleration
s_G - 0.1 0 Gompertz stress coefficient
t_0 d 0.0601 1 time at start development
E_Hpm J 2.028e+07 1 maturity at puberty for males
del_M - 0.1156 1 shape coerrection factor
f - 1 0 scaled functional response for 0-var data
f_tW - 0.8983 1 scaled functional response for tW data
z_m - 23.27 1 zoom factor for males
z_mm - 31.08 1 zoom factor for males after puberty