Data Category | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
Informed Guesses | 0 | 0 | 7 | 13 |
Other Guesses | 0 | 0 | 0 | 0 |
Totals 2006 | 0 | 0 | 7 | 13 |
Cause of Change | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
New Population | 0 | 0 | +7 | +13 |
Population Lost | 0 | 0 | 0 | -35 |
Totals | 0 | 0 | +7 | -22 |
Data Category | Known Range | Possible Range | Total Range |
---|---|---|---|
Informed Guesses | 1,346 | 0 | 1,346 |
Totals | 1,346 | 0 | 1,346 |
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. |
Binasse Area | PL | OG3 | E | 2004 | 0 | Brugière et al., in press | 1 | 330 | 13.8W | 11.8N | |
Corubal-Dulombi Area | NP | IG3 | D | 2004 | 7 | 13* | Brugière et al., in press | 1 | 1,342 | 14.7W | 11.6N |
* 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.