Data Category | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
Informed Guesses | 0 | 0 | 5 | 45 |
Other Guesses | 0 | 0 | 0 | 160 |
Total | 0 | 0 | 5 | 205 |
No changes between current and previous report.
Survey Details2 | Number of Elephants | Area | Map Location | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Input Zone | Type | Reliab. | Year | Estimate | 95% C.L. | Source | PFS3 | (km²) | Lon. | Lat. |
Bagbe River Forest | IG3 | D | 1995 | 5 | 45* | Kortenhoven pers. comm., 2002 | 2 | 349 | 11.1W | 9.3N |
Gola East Forest Reserve | OG3 | E | 1987 | 60 | Davies (1987) in Grubb et al., 1998 | 2 | 287 | 11.1W | 7.4N | |
Gola North Forest Reserve | OG3 | E | 1987 | 50 | Davies (1987) in Grubb et al., 1998 | 2 | 242 | 10.8W | 7.7N | |
Outamba-Kilimi | OG3 | E | 1994 | 50 | Grubb et al., 1998 | 1 | 461 | 12.0W | 9.8N |
* Range of informed guess
1Key to Causes of Change (only tracked since 2007): DA: Different Area; DD: Data Degraded; DT: Different Technique; NA: New Analysis; NG: New Guess; NP: New population; PL: Population Lost; RS: Repeat Survey (RS ́ denotes a repeat survey that is not statistically comparable for reasons such as different season); –––: No Change
2Key to Survey Types: AC: Aerial Count, not specified; AS: Aerial Sample Count; AT: Aerial Total Count; DC: Dung Count; EX: Extrapolation from GIS; GD: Genetic Dung Count; GS: Ground Sample Count; GT: Ground Total Count; IG: Informed Guess; IR: Individual Registration; OG: Other Guess. Survey Type is followed by an indicator of survey quality, ranked from 1 to 3 (best to worst). Survey Reliability is keyed A-E (best to worst) as outlined in this table.
3PFS: Priority for Future Surveys, ranked from 1 to 5 (highest to lowest). Based on the precision of estimates and the proportion of national range accounted for by the site in question, PFS is a measure of the importance and urgency for future population surveys. All areas of unassessed range have a priority of 1. See Introduction for details on how the PFS is derived.