The first table is from Ghiglieri, M.P. (1984). The Chimpanzees of Kibale Forest. New York: Columbia University Press. pp. 52-53, Table 9. It is followed by a second table of population densities from other sources.
| Enumeration route (north to south) | Date | (a) Nests counted in strip 20m wide | (b) True length of route (km)a | (c) Area sampled =(b)x 0.02km | (d) ___(a)___ (c)(.8) | x | (e) ____1____ weighted mean life span of nests (days) | x | (f) 1 Chimpanzee nest/day | x | (g) Ratio of whole population to nest- builders | = | (h) Chimpanzees km2 | ± | (i) 95% confidence interval |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Compartment 15,14,13, 12 & 17 | 3 Mar. & 13 May 1978 | 3 | 9.53 | 0.191 | 19.6 | X | __1__ 119.2 | X | (f) | X | 16 13 | = | 0.20 | ||
| Kanyawara K30 | 6-11 Dec. 1977 | 55 | 10.09 | 0.202 | 340.3 | X | __1__ 100.1 | X | (f) | X | 16 13 | = | 4.18 | ± | 0.945 |
| Kanyawara K30 | 11-12 May 1978 | 45 | 9.37 | 0.187 | 300.8 | X | __1__ 102.4 | X | (f) | X | 16 13 | = | 3.61 | ± | 0.945 |
| Kanyawara K30 | 23-24 Mar. 1981 | 37 | 9.03 | 0.181 | 255.5 | X | __1__ 117.2 | X | (f) | X | 24 20 | = | 2.61 | ± | 0.945 |
| Kanyawara to N. bound- ary of Kibale N.R. | 17 April 1981 | 15 | 5.50 | 0.110 | 170.5 | X | __1__ 100.1 | X | (f) | X | 24 20 | = | 2.04 | ± | 0.945 |
| Ngogo | 6 Jan.-27 Mar. 1977 | 223 | 58.23 | 1.165 | 239.3 | X | __1__ 112.0 | X | (f) | X | 46 38 | = | 2.59 | ± | 0.959 |
| Ngogo | 14 Jan.-17 Feb. 1978 | 35 | 9.68 | 0.194 | 225.5 | X | __1__ 101.3 | X | (f) | X | 46 38 | = | 2.69 | ± | 0.959 |
| Ngogo | 18-20 Mar. 1981 | 30 | 10.00 | 0.200 | 187.5 | X | __1__ 115.3 | X | (f) | X | 46 38 | = | 1.97 | ± | 0.959 |
| S. boundary Kibale N.R. | 15 Jan. 1978 | 1 | 5.50 | 0.110 | 11.4 | X | __1__ 107.7 | X | (f) | X | 46 38 | = | 0.13b | ± | 0.959 |
| S. boundary Kibale N.R. | 21 Mar. 1981 | 21 | 5.50 | 0.110 | 238.6 | X | __1__ 107.7 | X | (f) | X | 46 38 | = | 2.68 | ± | 0.959 |
| TOTAL for Kibale N.R. | 310 | 88.91 | 1.778 | 217.9 | X | __1__ 111.0 | X | (f) | X | 46 38 | = | 2.38 | ± | 0.959 | |
| TOTAL for all undisturbed habitats | 462 | 122.90 | 2.458 | 234.9 | X | __1__ 109.4 | X | (f) | X | 1.21 | = | 2.60 |
| Population Density (Indiv. per km2) | Source |
|---|---|
| 2.75 per km2(1989-1990) (41/14.9km2) Home range with minimum area polygon method | Chapman, C. A. & Wrangham, R. W. (1993). Range use of the forest chimpanzees of Kibale - implications for the understanding of chimpanzee social organization. Amer. J. Primatol. 31: 263-273. |
| 4.82 per km2(1989-1990) (41/8.5km2) Home range based on sum of 200m x 200m cells an individual used and those cells that it would have had to travel through to get from the location of one observation to the next | See above. |
| 5.26 per km2(1989-1990) (41/7.8km2) Home range based on sum of all cells in which the individual was seen | See above. |
| 1.4 per km2 (1970-72) Kanyawara | Struhsaker, T.T.(1975). The Red Colobus Monkey. Chicago: Chicago University Press. |
| 2.5 per km2 (50/20km2 | Wrangham, R. W., Conklin, N. L., Chapman, C. A. & Hunt, K. D. (1991). The significance of fibrous foods for Kibale Forest chimpanzees. Phil. Trans. R. Soc. Lond. B. 334: 171-178. |