Sphenodon punctatus (Tuatara):  

Predictions & Data for this entry

Model:  std  

MRE = 0.095
SMSE = 0.228

Zero-variate data
ab411.8 401.9 (0.02389)dage at birthWiki
ap5475 5471 (0.0006857)dage at pubertyWiki
am3.65e+04 3.65e+04 (1.436e-05)dlife spanAnAge
Lb10.5 10.62 (0.01169)cmtotal length at birthNelsThom2004
Li 45 43.1 (0.04227)cmultimate total length of femalesWiki
Lim 80 72.17 (0.09785)cmultimate total length of malesWiki
Wwb2.939 2.919 (0.006806)gwet weight at birthguessed
Wwim1300 1312 (0.009534)gultimate wet weight of maleWiki
Ri0.01233 0.003218 (0.739)#/dmaximum reprod rateADW
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.02317)time since birthtotal lengthNelsThom2004
Pseudo-data at Tref
DataGeneralised animalSphenodon punctatusUnitDescription
v 0.02 0.00753cm/denergy conductance
kap 0.8 0.7934-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 18.02J/d.cm^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8-growth efficiency


  • Males are larger; temp 28C is lethal, active till 5C. Optimal 16-21C; prob on male or female is 0.5 at 21 C; >22C gives males (ref: Wiki)


  • Males are assumed to differ from females by {p_Am} only


  • Wiki
  • Kooy2010
  • NelsThom2004
  • AnAge
  • ADW

Bibtex files with references for this entry

Bas Kooijman, 2014/04/16

accepted: 2015/09/21

refer to this entry as: AmP Sphenodon punctatus version 2015/09/21 bio.vu.nl/thb/deb/deblab/add_my_pet/