| Data Category | Definite | Probable | Possible | Speculative |
|---|---|---|---|---|
| Informed Guesses, Undocumented Aerial or Dung Surveys and GIS Extrapolations | 0 | 0 | 85 | 15 |
| Other Guesses and Other Extrapolations | 0 | 0 | 0 | 128 |
| Total | 0 | 0 | 85 | 143 |
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. |
| Fazao/Malfacasa Game Reserve | IG3 | D | 1987 | 45 | Chardonnet, 1988 | 1 | 2,169 | .8E | 8.7N | |
| Fosse-aux-Lions Forest Reserve | OG3 | E | 1991 | 128 | Hall-Martin & Ackerman, in Douglas-Hamilton et al. | 2 | 258 | .0E | 10.7N | |
| Galangachi Forest Reserve | IG3 | D | 1987 | 5 | 5* | Chardonnet, 1988 | 2 | 130 | .3E | 10.4N |
| Keran National park | IG3 | D | 1987 | 25 | Chardonnet, 1988 | 1 | 1,646 | .7E | 10.1N | |
| Oti Game Reserve | IG3 | D | 1987 | 10 | 10* | Chardonnet, 1988 | 1 | 1,408 | .7E | 10.6N |
* 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.
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