Predictions & Data for this entry

Model: std climate: Cfa migrate: phylum:
COMPLETE = 2.5 ecozone: THn food: biH class:
MRE = 0.060 habitat: 0iTh, 0iTi gender: Dtmf order:
SMSE = 0.007 embryo: Tt reprod: O family:

Zero-variate data

Data Observed Predicted (RE) Unit Description Reference
ab 190 200 (0.05247) d age at birth AnAge
tp 5110 4679 (0.08427) d time since birth at puberty for females MushWils1994
tpm 4745 4692 (0.01123) d time since birth at puberty for males MushWils1994
am 6.022e+04 6.021e+04 (0.0002757) d life span MushWils1994
Lb 4.3 5.254 (0.222) cm carapace length at birth ErnsBarb1989
Lp 23.5 23.22 (0.01199) cm carapace length at puberty for females MushWils1994
Lpm 23 22.36 (0.0279) cm carapace length at puberty for males MushWils1994
Li 29.5 27.93 (0.05324) cm ultimate carapace length for females MushWils1994
Lim 27.6 26.7 (0.0325) cm ultimate carapace length for males MushWils1994
Wwb 38.9 35.45 (0.08868) g wet weight at birth ErnsBarb1989
Wwp 2780 3059 (0.1003) g wet weight at puberty for females AnAge, MushWils1994
Wwpm 2607 2665 (0.02218) g wet weight at puberty for males AnAge, MushWils1994
Wwi 5500 5324 (0.03201) g ultimate wet weight for females AnAge
Wwim 4500 4540 (0.008836) g ultimate wet weight for males AnAge, MushWils1994
Ri 0.01945 0.01943 (0.00137) #/d maximum reprod rate MushWils1994

Uni- and bivariate data

Data Figure Independent variable Dependent variable (RE) Reference
tL_f Data for females, males time carapace length (0.1432) MushWils1994
tL_m Data for females, males time carapace length (0.13) MushWils1994

Pseudo-data at Tref = 20°C

Data Generalised animal Gopherus polyphemus Unit Description
v 0.02 0.02074 cm/d energy conductance
kap 0.8 0.7435 - allocation fraction to soma
kap_R 0.95 0.95 - reproduction efficiency
p_M 18 9.947 J/d.cm^3 vol-spec som maint
k_J 0.002 0.000377 1/d maturity maint rate coefficient
kap_G 0.8 0.7982 - growth efficiency
k 0.3 0.298 - maintenance ratio

Discussion

  • Males are assumed to differ from females by {p_Am} and E_Hp only
  • In view of low somatic maintenance, pseudodata k_J = 0.002 1/d is replaced by pseudodata k = 0.3

Facts

  • Large geographic variation in age at maturation (Ref: MushWils1994)

Bibliography

Citation