Table 1 Data from 11 temporary research sites (TRSs) across West Africa where data were collected for 14–17 months between 2011 and 2014 to document the occurrence of chimpanzee accumulative stone throwing.
TRS | Long | Lat | Size (km2) | Transect length (km) | Rock density (/km2) | Hollow tree density (/km2) | # of stone throws | # sites (hollow trees) | # sites behaviour recorded (hollow trees) | # of individuals | # of revisits at a site 1 | Age-sex class | Stone throw variant | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Côte d’Ivoire | Djouroutou | –7.28 | 5.37 | 35 | 35.0 | 1500 | 120.5* | – | – | – | – | – | – | – |
Comoé GEPRENAF | –3.71 | 8.84 | 69 | 39.0 | 131,244 | 528.6 | 23 | 9 (2) | 3(2) | 4–6 | 1–6 | AM | H, B, T | |
Taï R | –7.33 | 5.87 | 25 | 25.0 | 1640 | 103* | – | – | – | – | – | – | ||
Taï E | –7.31 | 5.89 | 25 | 30.0 | 350 | 86* | – | – | – | – | – | – | ||
Guinea | Bakoun | –12.5 | 11.9 | 48 | 40.0 | 59,325 | 700 | – | – | – | – | – | – | |
Sangaredi | –13.77 | 11.1 | 91 | 24.0 | 24,229 | NA | 3 | 10 (2) | 2(2) | 3 | 0 | AM, J | H, B/T § | |
Sobeya | –11.71 | 10.26 | 96 | 27.0 | 81,121 | NA | – | – | – | – | – | – | ||
Guinea Bissau | Boé | –14.22 | 11.75 | 56 | 43.8 | 99,189 | 251.1* | 33 | 28 (2) | 6(2) | 10–12 | 0–3 | AM, AF | H, T |
Liberia | Mt. Nimba | –8.49 | 7.22 | 25 | 25.0 | 520,800 | 120 | 5 | 14 (1) | 2(0) | 2 | 1–3 | AM | H |
Sapo | –8.41 | 5.41 | 20 | 15.0 | 0 | NA | – | – | – | – | – | – | ||
Senegal | Kayan | –12.29 | 13.18 | 75 | 29.0 | 308,603 | NA | – | – | – | – | – | – |
