Data Category | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
Aerial or Ground Total Counts | 12 | 0 | 0 | 0 |
Informed Guesses | 384 | 0 | 965 | 335 |
Total | 396 | 0 | 965 | 335 |
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. |
Babille Elephant Sanctuary | IG3 | D | 1998 | 65 | 135* | Tekle pers. comm., 1998 | 1 | 6,982 | 42.5E | 8.7N |
Chew Bahr Wildlife Reserve | IG3 | D | 2001 | 60 | Chago et al., 2001 | 2 | 4,212 | 36.9E | 4.9N | |
Dabus Valley Controlled Hunting Area | IG3 | D | 1998 | 200 | Abdi pers. comm., 1998 | 2 | 2,127 | 35.1E | 10.6N | |
Gambella National Park | IG3 | D | 2002 | 200 | Ethiopia Wildlife Conservation Organization, 2002 | 2 | 5,061 | 33.9E | 8.0N | |
Mago & Omo National Parks | IG3 | D | 2002 | 324 | 200* | Demeke, 2003 | 1 | 6,230 | 36.0E | 5.8N |
Mizan Teferi Controlled Hunting Area | IG3 | D | 1998 | 500 | Abdi pers. comm., 1998 | 2 | 3,160 | 35.7E | 7.4N | |
Shire | AT2 | A | 1997 | 6 | Litoroh, 1997a | 2 | 1,123 | 37.8E | 14.3N | |
Tekezze Valley Wildlife Reserve | AT2 | A | 1996 | 6 | Litoroh, 1997a | 2 | 1,130 | 37.2E | 14.2N |
* 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.