Elephant Database
African Elephant Specialist Group

Cameroon, 2007

All Years for Cameroon: 201620132007200219981995

2007 Summary Totals for Cameroon

Data Category Definite Probable Possible Speculative
Other Dung Counts07262950
Informed Guesses17904,6701,320
Other Guesses0008,197
Totals 20061797264,9659,517

Interpretation of Changes in Estimates from Previous Report

Cause of Change Definite Probable Possible Speculative
Repeat Survey0-368+2190
New Population00+1,405+345
Different Technique0+178+147-157
New Guess+1750-2,212+1,025
Data Degraded-2,002-2,142-3,610+5,144

Area of Range Covered by Each Data Category (km²)

Data CategoryKnown RangePossible RangeTotal Range
Other Dung Counts1,50301,503
Informed Guesses7,7677348,501
Other Guesses17,26926,59743,865
Unassessed Range31,84232,86064,702

Cameroon : Elephant Estimates

Cause ofSurvey Details2 Number of Elephants Area Map Location
Input ZoneChange1TypeReliab.YearEstimate95% C.L. SourcePFS3 (km²) Lon. Lat.
Abong-Mbang Forest Reserve-OG3E1994100A. Ekobo, pers. comm., 199421,540 13.1E 4.2N
Bayang-Mbo Wildlife SanctuaryRSDC2D2001457Bechem & Nchanji, 20013662 9.6E 5.3N
Benoué National Park-IG3E1991540DFPN, 199121,800 13.8E 8.3N
Bouba Ndjidah National Park-IG3E1991660DFPN, 199122,200 14.7E 8.6N
Boumba-Bek National ParkNGIG3D2004318Blake, 200522,383 15.0E 2.7N
Campo (South) National Park-DC2C2001548 255Bekhuis & Prins, 20033648 10.1E 2.3N
Dja Faunal ReserveDDIG3E19951,500 500*M.N. Tchamba, pers. comm., 199525,260 13.0E 3.1N
Faro National Park-IG3E199160Tchamba, 199323,300 12.7E 8.2N
Korup National ParkDDDC3E1993425 271Powell, quest. reply, 199321,259 9.0E 5.2N
Lobéké National ParkDDDC2E19933,719 2,125Ekobo, 199521,985 15.9E 2.3N
Ma'an Region-IG3D20004 10*Matthews & Matthews, 20003654 10.4E 2.3N
Mengame Wildlife SanctuaryNPIG3D20031,354 269Halford et al., 200321,425 12.3E 2.3N
Mongokele Forest Reserve-DC2E1991773 53A. Ekobo, pers. comm., 19943850 16.0E 2.0N
Mt. CameroonDTDC3C2003178 148Ekobo, 20033676 9.2E 4.2N
Nki Forest Reserve-DC3D19982,178A. Ekobo, pers. comm., 199821,815 14.5E 2.4N
Sudanian Area-IG3E1991360DFPN, 1991124,985 13.7E 8.3N
Waza National ParkNGIG3D2002475 1025*Saleh et al., 200221,700 14.7E 11.3N
Yabassi AreaNPIG3D200263WWF Cameroon, 200322,425 10.3E 4.5N
Yoko AreaNPOG3E199960T. Sánchez Ariño, pers. comm., 2004425 12.4E 5.6N

* 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.

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