Predictions & Data for this entry

Model: std climate: Cfa, Dfa, Dfb migrate:
COMPLETE = 2.5 ecozone: THn food: biCi, biCv, biSv, biHl
MRE = 0.063 habitat: 0bTd, biFp, biFl, biFr gender: Dg
SMSE = 0.082 embryo: Tt reprod: O

Zero-variate data
tp6570 6664 (0.01426)dtime since birth at puberty for femaleCOSEWIC
tpm6205 6205 (1.94e-05)dtime since birth at puberty for maleCOSEWIC
am1.716e+04 1.715e+04 (1.248e-05)dlife spanAnAge
Lp25.4 24.58 (0.03242)cmcarapace length at puberty for femaleCOSEWIC
Li 45 33.24 (0.2613)cmultimate carapace lengthADW
Wwb8.24 8.008 (0.02819)gwet weight at birthCOSEWIC
Wwi1.6e+04 1.741e+04 (0.08828)gultimate wet weightADW
Ww226000 5399 (0.1002)gweight at 22.5 cm carapace lengthWiki
Ri0.09863 0.09858 (0.0005474)#/dmaximum reprod rateCOSEWIC
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tW see Fig. 1 (0.1069)time since birthwet weightWilliSpot1989
Pseudo-data at Tref
DataGeneralised animalChelydra serpentinaUnitDescription
v 0.02 0.008139cm/denergy conductance
kap 0.8 0.8699-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 12.09J/^3vol-spec som maint
k_J 0.002 0.00046131/dmaturity maint rate coefficient
kap_G 0.8 0.7991-growth efficiency
k 0.3 0.2997-maintenance ratio


  • Between 23 and 28 C, males develop from eggs, below and above the range females (ref: COSEWIC)
  • Males are larger tha females (ref: Wiki)


  • 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, 2017/10/05

accepted: 2017/10/05

refer to this entry as: AmP Chelydra serpentina version 2017/10/05