Data Category | Definite | Probable | Possible | Speculative |
---|---|---|---|---|
Aerial or Ground Total Counts | 365 | 0 | 0 | 0 |
Aerial or Ground Sample Counts | 746 | 368 | 368 | 0 |
Dung Counts | 0 | 172 | 68 | 0 |
Other Guesses and Other Extrapolations | 0 | 0 | 0 | 250 |
Total | 1,111 | 540 | 436 | 250 |
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. |
Kasungu National Park | AS2 | B | 1992 | 672 | 72 | Mkanda, Quest. Reply, 1993b | 1 | 2,316 | 33.1E | 12.9S |
Liwonde National Park | AT3 | A | 1992 | 365 | 0 | Mkanda, Quest. Reply, 1993b | 2 | 548 | 35.3E | 14.9S |
Nkhota-Kota Wildlife Reserve | AS2 | B | 1992 | 71 | 206 | Mkanda, Quest. Reply, 1993b | 1 | 1,802 | 34.0E | 12.9S |
Nyika National Park | DC2 | C | 1992 | 172 | 68 | Mkanda, Quest. Reply, 1993b | 2 | 375 | 33.8E | 10.6S |
Phirilongwe & Thuma Forest Reserve | OG3 | E | 1989 | 250 | Munthali, in Douglas-Hamilton, et al., 1992 | 2 | 1,000 | 35.0E | 14.6S | |
Vwaza Marsh Wildlife Reserve | AS1 | B | 1992 | 371 | 296 | Mkanda, Quest. Reply, 1993b | 1 | 986 | 33.4E | 11.0S |
* 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.