Predictions & Data for this entry

Model: std climate: ME migrate: Ms phylum:
COMPLETE = 2.6 ecozone: MAN food: biCik class:
MRE = 0.050 habitat: xiMcp, 0bTd gender: Dg order:
SMSE = 0.006 embryo: Tncfm reprod: O family:

Zero-variate data

Data Observed Predicted (RE) Unit Description Reference
ab 29 25.48 (0.1214) d age at birth NettBirk1985
tx 27.5 27.49 (0.0002902) d time since birth at fledging NettBirk1985
tp 82.5 86.5 (0.04851) d time since birth at puberty guess
tR 730 730 ( 0) d time since birth at first egg laying guess
am 5913 5920 (0.001165) d life span guess
Ww0 31.6 39.82 (0.26) g egg weight NettBirk1985
Wwb 21.5 25.39 (0.1811) g wet weight at birth NettBirk1985
Wwi 163.5 145.6 (0.1093) g ultimate wet weight NettBirk1985
Ri 0.00274 0.002949 (0.07627) #/d maximum reprod rate NettBirk1985

Uni- and bivariate data

Data Figure Independent variable Dependent variable (RE) Reference
tW Data from Franz Josef Land 2013, Svalbard 1963/4 time since birth wet weight (0.02191) GremFort2015
tW1 Data from Franz Josef Land 2013, Svalbard 1963/4 time since birth wet weight (0.01009) Verm1987

Pseudo-data at Tref = 20°C

Data Generalised animal Alle alle Unit Description
v 0.02 0.04131 cm/d energy conductance
p_M 18 625 J/d.cm^3 vol-spec som maint
k_J 0.002 0.02478 1/d maturity maint rate coefficient
k 0.3 0.2907 - maintenance ratio
kap 0.8 0.9008 - allocation fraction to soma
kap_G 0.8 0.7991 - growth efficiency
kap_R 0.95 0.95 - reproduction efficiency
s_s 0.01 0.07382 - supply stress

Discussion

  • Peak weight before fledging is only 75% of adult weight, which causes poor fit of tW data if f is assumed to be constant
  • mod_1: v is reduced
  • mod_2: Pseudo-data point k is used, rather than k_J; Data set tp and parameter t_R are added, the latter replacing clutch interval t_N. Postnatal T is based on PrinPres1991, see get_T_Aves. See further the revision page, theme puberty

Acknowledgment

  • The creation of this entry was supported by the Norwegian Science Council (NFR 255295)

Bibliography

Citation