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Table 4 Results of the type III analysis of variance calculated for basal metabolic rate (BMR) in Siberian hamster

From: Polymorphism of winter phenotype in Siberian hamster: consecutive litters do not differ in photoresponsiveness but prolonged acclimation to long photoperiod inhibits winter molt

Model no Trait Model Factors F(df) P-value
1 BMR in 3 months old animals LME mb 189.79 (1, 222) <0.001
litter order 1.49 (1, 208) 0.224
sex 15.22 (1, 224) <0.001
mb×litter order 2.87 (1, 209) 0.091
2 BMR after16 weeksunder SP LME mb 715.89 (1, 412) < 0.001
litter order 0.10 (1, 191) 0.752
duration of LP acclimation 0.37 (1, 190) 0.542
sex 24.43 (1, 274) < 0.001
photoperiod 66.74 (1, 591) < 0.001
molting 9.07 (2, 190) 0.001
duration of LP acclimation × molting 3.31 (2, 189) 0.038
duration of LP acclimation × photoperiod 0.18 (1, 595) 0.673
litter order × molting 4.61 (2, 190) 0.011
litter order × photoperiod 2.92 (1, 590) 0.087
photoperiod × molting 1.38 (2, 594) 0.252
duration of LP acclimation × photoperiod × molting 0.35 (2, 591) 0.707
litter order × photoperiod×molting 5.38 (2, 590) 0.005
3 BMR of late responding individuals LME mb 204.38 (1, 40) <0.001
litter order 0.02 (1, 99) 0.877
duration of LP acclimation 2.78 (1, 22) 0.109
sex 7.67 (1, 24) 0.011
time of measurement 6.23 (2, 137) 0.002
molting 0.01 (1, 22) 0.940
litter order × time of measurement 3.62 (2, 139) 0.029
  1. mb body mass, SP short photoperiod, LP long photoperiod, LME linear mixed effect model. Significant effects are indicated in bold