Figure 4.
Comparison of pup mortality in OxtrFB/FB females across three litters. Both Oxtr+/+ and OxtrFB/FB females lost significantly more pups on their first litter compared with their second litter, regardless of disturbance group. Only OxtrFB/FB females lost significantly more pups on their first litter as compared with their third litter. On both litter 1 (left) and litter 2 (middle), OxtrFB/FB females lost significantly more pups compared with Oxtr+/+ females, regardless of disturbance group. On litter 3, there were no significant differences in pup loss between the two genotypes, and switching the NONE and HIGH groups did not significantly affect pup mortality. Litter 1: Oxtr+/+: NONE = 9; LOW = 9; HIGH = 10; OxtrFB/FB: NONE = 9; LOW = 9; HIGH = 10. Litter 2: Oxtr+/+: NONE = 8, LOW = 10; HIGH = 10; OxtrFB/FB: NONE = 9; LOW = 9; HIGH = 9. Litter 3: Oxtr+/+: NONE = 10; LOW = 9; HIGH = 7; OxtrFB/FB: NONE = 8; LOW = 5; HIGH = 8. *p < .05; **p < .01; ***p < .001.