While male yearlings usually reach their sexual maturity only after the main mating season, female yearlings can compensate for high mortality rates and may be responsible for about 50% of all young born in a year.
Mentres que os machos dun ano xeralmente chegan á madurez sexual só despois da principal estación reprodutora, as femias dun ano poden compensar as altas taxas de mortalidade e poden ser responsables dun 50% de todos os nacementos nun ano.