Table 1.
Summary of the number of individuals, inter-blink interval (IBI) and blink duration (BD).
| Period (group size) | Sex∙age*1 | Median of IBI range (0.01 sec) | Median of BD range (0.01 sec) | The number of individuals in AI group | The number of individuals analysed | The number of IBI | The number of BD | The number of IBI per individual (Weighted average ± SD) | The number of BD per individual (Weighted average ± SD) |
|---|---|---|---|---|---|---|---|---|---|
| Sep-Oct, 2013 (72 heads) | ♂ ∙ Adult | 113.00 4.00–1380.00 |
13.00 3.00–397.00 |
12 | 9 | 193 | 229 | 213.68 ± 66.79 | 22.69 ± 7.58 |
| Sep-Oct, 2016 (53 heads) | ♂ ∙ Adult | 220.00 3.00–5154.00 |
13.00 3.00–278.00 |
4 | 4 | 418 | 448 | 464.07 ± 66.81 | 21.68 ± 8.72 |
| ♂ ∙ Young | 373.00 3.00–5906.00 |
13.00 3.00–316.00 |
9 | 8 | 363 | 390 | 674.91 ± 233.52 | 21.68 ± 8.72 | |
| ♀ ∙ Adult | 151.50 7.00–3634.00 |
13.00 3.00–213.00 |
13 | 6 | 92 | 100 | 270.08 ± 56.90 | 16.10 ± 4.19 | |
| ♀ ∙ Young | 183.00 6.00–3137.00 |
14.00 3.00–286.00 |
3 | 2 | 111 | 116 | 357.81 ± 15.05 | 19.13 ± 3.5 |
*1: The age classes for each sex are defined according to the previous studies of anubis baboons. Males’ age-classes were judged based on apparent weight, the sizes of canines and testicles, and immigrational history56,57. ‘Adult males’ are defined as over 8 years old when completely erupted and are reproductive mature. ‘Young males’ are 4–8 years old. Females are considered ‘adults’ after their first pregnancy, and ‘young’ after the first sexual swelling experience. The first birth by females averaged at 6.9 years old, and the first sexual swelling averaged 4.8 years old58.