Data Category | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
Aerial or Ground Total Counts | 28 | 0 | 0 | 0 |
Informed Guesses | 3 | 0 | 0 | 0 |
Totals 2006 | 31 | 0 | 0 | 0 |
Cause of Change | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
Repeat Survey | -11 | 0 | 0 | 0 |
New Population | +3 | 0 | 0 | 0 |
Totals | -8 | 0 | 0 | 0 |
Data Category | Known Range | Possible Range | Total Range |
---|---|---|---|
Aerial or Ground Total Counts | 22 | 0 | 22 |
Informed Guesses | 28 | 0 | 28 |
Totals | 50 | 0 | 50 |
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. |
Hlane Royal National Park | RS | IR1 | A | 2005 | 13 | Reilly, quest. reply, 2005 | 1 | 142 | 31.9E | 26.3S | |
Malolotja Nature Reserve | NP | IG3 | D | 2005 | 3 | Reilly, quest. reply, 2005 | 1 | 28 | 31.1E | 26.0S | |
Mkhaya Nature Reserve | RS | IR1 | A | 2005 | 15 | Reilly, quest. reply, 2005 | 1 | 65 | 31.7E | 26.6S |
* 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.