|Direct Sample Counts and Reliable Dung Counts||402||370||370||0|
|Other Dung Counts||0||16,577||3,338||0|
|Cause of Change||Definite||Probable||Possible||Speculative|
|Data Category||Known Range||Possible Range||Total Range|
|Direct Sample Counts and Reliable Dung Counts||2,592||345||2,937|
|Other Dung Counts||21,952||0||21,952|
|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.|
|Conkouati National Park||DT||DC2||B||2005||772||370||Vanleeuwe, 2006||2||3,850||11.5E||3.9S|
|Lac Telé Community Reserve||NP||DC3||D||2004||316||729*||Iyenguet et al., 2007||2||4,400||17.3E||1.1N|
|Nouabalé-Ndoki National Park||DT||DC2||C||2003||3,032||755||Blake, 2005||2||6,660||16.7E||2.7N|
|Odzala - Kokoua National Park||DA||DC2||C||2005||13,545||3,252||Wildlife Conservation Society, 2006||2||13,545||14.9E||1.0N|
* 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.