Predictions & Data for this entry

Model: std climate: Cfa migrate:
COMPLETE = 2.5 ecozone: THn food: biH
MRE = 0.064 habitat: 0iTh, 0iTi gender: Dtmf
SMSE = 0.063 embryo: Tt reprod: O

Zero-variate data
ab190 208.7 (0.09824)dage at birthAnAge
tp5110 4677 (0.08467)dtime since birth at puberty for femalesMushWils1994
tpm4745 4687 (0.01223)dtime since birth at puberty for malesMushWils1994
am6.023e+04 6.022e+04 (4.022e-06)dlife spanMushWils1994
Lb4.3 5.242 (0.2191)cmcarapace length at birthErnsBarb1989
Lp23.5 23.27 (0.009694)cmcarapace length at puberty for femalesMushWils1994
Lpm 23 22.34 (0.02859)cmcarapace length at puberty for malesMushWils1994
Li29.5 27.91 (0.05375)cmultimate carapace length for femalesMushWils1994
Lim27.6 26.68 (0.03338)cmultimate carapace length for malesMushWils1994
Wwb38.9 35.01 (0.1)gwet weight at birthErnsBarb1989
Wwp2780 3063 (0.1019)gwet weight at puberty for females AnAge, MushWils1994
Wwpm2607 2667 (0.02316)gwet weight at puberty for males AnAge, MushWils1994
Wwi5500 5286 (0.03887)gultimate wet weight for femalesAnAge
Wwim4500 4541 (0.009188)gultimate wet weight for males AnAge, MushWils1994
Ri0.01945 0.01946 (0.0004457)#/dmaximum reprod rateMushWils1994
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL_f see Fig. 1 (0.1436)timecarapace lengthMushWils1994
tL_m see Fig. 1 (0.13)timecarapace lengthMushWils1994
Pseudo-data at Tref
DataGeneralised animalGopherus polyphemusUnitDescription
v 0.02 0.03866cm/denergy conductance
kap 0.8 0.7636-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 7.63J/^3vol-spec som maint
k_J 0.002 0.00029131/dmaturity maint rate coefficient
kap_G 0.8 0.7978-growth efficiency
k 0.3 0.3004-maintenance ratio


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


  • 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


Bibtex file with references for this entry

Bas Kooijman, 2017/10/10

accepted: 2017/10/10

refer to this entry as: AmP Gopherus polyphemus version 2017/10/10