Table 1.

Summary of the seven datasets included in the study. ‘F’ indicates females and ‘M’ indicates males.

number of adult malesnumber of adult females% of dyads which were close maternal kin (% of dyads which were mother–offspring)
study sitestudy communitystudy speciesobservation periodmedianminmaxmedianminmaxF–FM–FM–M
TaïTaï Northchimpanzee1992–201221672133.1 (3.1)4.1 (2.7)1.9
TaïTaï Southchimpanzee2000–20124.528106140.4 (0.4)2.0 (2.0)0
TaïTaï Eastchimpanzee2009–20125.5561110120 (0)0 (0)0
BudongoSonsochimpanzee2007–201314131726.512331.7 (1.7)2.5 (1.5)0.4
KibaleNgogochimpanzee2003–200437193842.515490.5 (0.4)1.2 (1.0)0.5
LomakoEyengobonobo1990–1998758145170 (0)4.1(3.4)10.3
LuiKotaleBompusabonobo2007–20137491312160.3 (0.3)4.8 (4.8)3.9