|Other Guesses and Other Extrapolations||0||0||0||1,783|
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.|
|Barrobo Forest Area||OG3||E||1990||99||Anstey & Dunn, 1991||2||640||8.0W||4.9N|
|Grebo National Park||OG3||E||1990||231||Anstey & Dunn, 1991||2||2,596||7.6W||5.5N|
|Krahn-Bassa National Forest Area||OG3||E||1990||495||Anstey & Dunn, 1991||1||4,435||8.8W||5.8N|
|North-East Forest Area||OG3||E||1990||33||Anstey & Dunn, 1991||3||130||9.5W||8.1N|
|North Gola, Kpelle/Belle, Lorma National Forest Ar||OG3||E||1990||495||Anstey & Dunn, 1991||1||4,533||10.4W||7.5N|
|Sapo National Park||OG3||E||1990||430||Anstey & Dunn, 1991||2||1,391||8.5W||5.4N|
* 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.