|Informed Guesses, Undocumented Aerial or Dung Surveys and GIS Extrapolations||0||0||1,065||210|
|Other Guesses and Other Extrapolations||0||0||0||340|
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.|
|Andoni Island||IG3||D||1993||30||20*||Thouless, 1993||3||118||7.5E||4.5N|
|Kamuka Game Reserve and Kwiambana Game Reserve||IG3||D||1993||80||40*||Hurst, Quest. Reply, 1994; Anstey & Dunn, Quest. Reply||2||3,730||6.6E||11.1N|
|Lake Chad ns||OG3||E||300||NRCC, 1991||2||3,508|
|Okomu Game Reserve||OG3||E||40||NCF, 1991||3||245||5.1E||6.5N|
|Omo Biosphere Reserve||DC3||D||1993||30||Coad, 1993||2||871||3.4E||7.1N|
|Sambisa Game Reserve||IG3||D||1993||300||100*||Hurst, Quest. Reply, 1994; Anstey & Dunn, Quest. Reply||2||518||13.6E||11.4N|
|Taylor Creek||IG3||D||25||Powell, pers. comm., in Thouless, 1993||3||144||6.4E||5.2N|
|Yankari National Park||IG3||D||1993||600||50*||Hurst, Quest. Reply, 1994||2||2,244||10.5E||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.