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

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

		Phenotype
Life history trait		responding	non-responding
m_b before breeding (g)	males	26.81 ± 3.74	32.66 ± 3.56 ^a
m_b before breeding (g)	females	23.04 ± 2.11	24.97 ± 2.61 ^a
m_b after breeding (g)	males	32.79 ± 3.37	34.13 ± 3.62
m_b after breeding (g)	females	30.02 ± 4.30	28.22 ± 3.32
litter size	1st	5.33 ± 1.61	4.20 ± 2.04
litter size	2nd	5.11 ± 2.20	4.60 ± 1.51
offspring m_b (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
growth rate (g day^− 1)	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
degree of use of paper tube %	summer	66.74 ± 20.24 ^b	67.67 ± 24.72 ^b
propensity to build the nest %	winter	91.30	72.50 ^a
propensity to build the nest %	summer	30.40 ^b	43.10 ^b

Values are mean ± SD or median ± SE in case of time of commencement to breeding and time interval between consecutive litters
^a difference between phenotypes; P ≤ 0.05
^b difference between seasons within phenotype; P ≤ 0.05

ISSN: 1742-9994