. Author manuscript; available in PMC: 2015 May 19.

Published in final edited form as: Evolution. 2014 Sep 10;68(11):3134–3148. doi: 10.1111/evo.12500

Table 3.

Adult sex ratios in dwarf hamsters and their hybrids partitioned by litter. Significant values are in bold. Sex ratio was tested with a chi-square test using the pooled sex ratio of the species (50.6% male) as the null expectation.

Cross	Females	Males	Litters	% Male	Litter Size ±se	Females/Litter ±se	Males/Litter ±se
P. campbelli	199	205	85	50.7	4.8±0.2	2.3±0.2	2.4±0.2
P. sungorus	229	226	77	49.7	5.9±0.2	3.0±0.2	2.9±0.2
P. campbelli × P. sungorus	60	97	43	61.8 ¹	3.7±0.2 ²	1.4±0.2	2.3±0.2

Chi-square test, X²=8.463, df=1, P<0.001.

F_2,202=23.665, P<0.001. Also significant in all pairwise Wilcoxon rank-sum tests, P<0.004, Bonferroni corrected α =0.025.