1 Appendix 1 of Supporting Information 2 3 Sociality measures reported in the literature that were considered synonyms of sociality main categories used in the analyses. Main category of sociality Number of females Sociality measures reported and considered synonyms Group size (matriline size); groups with 2 females vs. groups with fewer or more females; groups with no other females vs. groups with additional females; harem size (number of females); matriline size or # related females sharing a home range; mean number of adult females; mean number of adult females during gestation; mother-daughter pairs vs. solitary females; number of adult females; number of adult females (all); number of adult females (core); number of adult females at start of window; number of breeding females; number of breeding females (pride size); number of breeding males; number of close female relatives in the group; number of females; number of females (all); number of females (core); number of females (group size); number of females per group; number of lactating females; proportion of adult females per group; sociality index (based on adult-adult spatial association and interactions); solitary females vs. groups of 2 females; solitary females vs. groups of 4+ females; solitary vs. grouped (a group of 3 and another of 4) females; solitary vs. grouped adult females; solitary vs. grouped females; solitary vs. grouped yearling females; solitary vs. male-female vs. grouped females Number of males Groups with 1 male vs. groups with more males; groups with 2 males vs. groups with fewer or more males; number of adult males; number of adult males (helpers and breeding males); number of males; number of stallions in group (single vs. multiple); proportion males to females; proportion of adult males in the group; proportion of adult males per group Number of non breeders Groups with vs. groups without helpers; mean number of subordinate adult females; minimum number of non breeders (i.e., not including the breeding pair); number of non breeders; number of female helpers; number of male helpers; number of helpers (all animals over 18 months other than reproductive pair and subordinate females that were reproductive); number of non breeding mature females; number of non breeding yearling females; number of non breeding mature males; number of non breeding yearling males; number of subordinates in fall; number of male subordinates in fall; number of non breeding adult females; number of all non breeding females; number of non breeders; number of adult "escorts" Total group size Colonial vs. non colonial; fall group size; family size in breeding season; group size; group size (single males); group size (adults and weanlings); group size (adults and yearlings); group size (adults and immatures); group size (adults and subadults); group size (total number of animals); group size (yearlings and adults); group size at start of window; mean group size 30 days post birth; mean group size; mean group size during gestation; mean group size 60 days post emergence; number of lactating females (and/or helpers); number of adults and subadults; number of males+ non breeding females; small, medium and large groups; small vs. large groups; solitary female vs. female in the presence of previous offspring vs. 2 or more breeding females vs. 2 breeding females and previous offspring; spring group size; total group size; total group size (pack size) Number of adults 4 5 6 7 8 9 10 11 12 13 14 15 Adult group size; group size (adults); group size (all adults core); group size (all adults); groups of 3 adults vs. groups with fewer or more adults; groups with 3 vs. groups with fewer or more adults; number of adults; pack size