Males are scored as adults through size and testis bright colours, while females are scored as adults once they have given birth. Group members that did not fulfil these criteria were scored as juveni

Figshare2015-12-02 更新00

Composition of the three study groups.

Adult = older than 8 years; sub-adult = 5–8 years; juveniles = 3–5 years; infants 0–3 years; an individual younger than 3 years but whose mother had already another offspring were considered juveniles

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Composition of primer groups.

Primers were combined according to their position in the genome.Bold indicates the primer group name. Non-bold: names of the primers which comprise each primer groups. Sequence of all primers is given

Figshare2015-12-02 更新00

The composition of the study groups.