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Table 1 Comparison of life-history traits between winter phenotypes of Siberian hamster

From: Photoresponsiveness affects life history traits but not oxidative status in a seasonal rodent

  Phenotype
Life history trait responding non-responding
mb before breeding (g) males 26.81 ± 3.74 32.66 ± 3.56 a
females 23.04 ± 2.11 24.97 ± 2.61 a
mb after breeding (g) males 32.79 ± 3.37 34.13 ± 3.62
females 30.02 ± 4.30 28.22 ± 3.32
litter size 1st 5.33 ± 1.61 4.20 ± 2.04
2nd 5.11 ± 2.20 4.60 ± 1.51
offspring mb (g) 3 days 2.56 ± 0.31 2.94 ± 0.40 a
10 days 6.43 ± 0.82 6.97 ± 0.92 a
18 days 12.65 ± 1.85 13.45 ± 1.79 a
growth rate (g day− 1) 1st 0.65 ± 0.12 0.69 ± 0.11
2nd 0.71 ± 0.11 0.71 ± 0.11
time of commencing breeding (days)   36.50 ± 3.56 22.00 ± 2.24 a
time interval between consecutive litters (days)   27.00 ± 5.28 38.50 ± 4.92
degree of use of paper tube % winter 87.10 ± 12.04 77.78 ± 16.49 a
summer 66.74 ± 20.24 b 67.67 ± 24.72 b
propensity to build the nest % winter 91.30 72.50 a
summer 30.40 b 43.10 b
  1. Values are mean ± SD or median ± SE in case of time of commencement to breeding and time interval between consecutive litters
  2. a difference between phenotypes; P ≤ 0.05
  3. b difference between seasons within phenotype; P ≤ 0.05