|Direct Sample Counts and Reliable Dung Counts||109||820||820||0|
|Other Dung Counts||0||869||216||0|
|Cause of Change||Definite||Probable||Possible||Speculative|
|Data Category||Known Range||Possible Range||Total Range|
|Direct Sample Counts and Reliable Dung Counts||53,378||0||53,378|
|Other Dung Counts||4,234||0||4,234|
|Cause of||Survey Details2||Number of Elephants||Area||Map Location|
|Input Zone||Change1||Type||Reliab.||Year||Estimate||95% C.L.||Source||PFS3||(km²)||Lon.||Lat.|
|Bamingui-Bangoran National Park & Environs||DT||AS2||B||2005||830||807||Renaud et al., 2005||1||37,200||20.0E||8.0N|
|Bangassou Forest Reserve||NG||OG3||E||2004||500||500*||Blake, 2005||1||12,011||23.3E||5.2N|
|Dzanga-Sangha & Dzanga-Ndoki National Parks||DT||DC1||C||2005||869||216||Blake, 2005||2||2,554||16.2E||2.9N|
|Manovo Gounda - St Floris National Park||DT||AS2||B||2005||99||146||Renaud et al., 2005||1||37,200||21.6E||9.1N|
* 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.