Figure 2.

Relative percent of births considering the potential interaction between parity and seasonality in a timed-mating strategy (A) and spontaneous mating that occurred in small social groups (B). Infant births were normalized for each breeding strategy by dividing the number of infants born in each seasonal quarter by the total number of infants born to primiparous and multiparous females from 1991-2015. Mean (S.E.) percent of births are portrayed separately for each mating strategy and illustrate the stronger trend for seasonality in primiparous females, whereas multiparous females birthed more similar numbers of infants year-round with time-mating.