Elephant Database
African Elephant Specialist Group

Côte d'Ivoire
Provisional African Elephant Population Estimates: update to 31 Dec 2013

All Years for Côte d'Ivoire: 201620132007200219981995

Summary Totals for Côte d'Ivoire

Estimates from SurveysGuesses% Known and
Possible Range
Area (km2)
Survey categoryEstimate± 95% CLFromTo
Aerial Sample Counts2017.32,518
Reliable Dung Counts18913512.01,750
Degraded Data81381352.47,635
Totals 2015191135813813  
Totals 20061880767777  
Assessed Range81.711,904
Unassessed Range18.32,674
Total Range10014,578

Summary Totals for Côte d'Ivoire

Data Category Definite Probable Possible Speculative
Direct Sample Counts and Reliable Dung Counts541351350
Other Guesses13500678
Totals 2013189135135678
Totals 200618815289536

Interpretation of Changes in Estimates from Previous Report

 Estimates from SurveysGuessesArea
Cause of Change Estimate ± 95% CL From To% Known and PossibleTotal
Different Technique+149±135-21-3129.34,269
Data Degraded-1460+146+14610.71,555

Interpretation of Changes in Estimates from Previous Report

Cause of Change Definite Probable Possible Speculative
Different Technique+14+80+114-10
Data Degraded-11-159-54+152

Interpretation of Changes in Estimates from Previous Report (2007 scaling)

Cause of Change Definite Probable Possible Speculative
Different Technique+5+17+87-10
Data Degraded-4-34-41+152

Area of Range Covered by Each Data Category (km²)

Data CategoryKnown RangePossible RangeTotal Range
Direct Sample Counts and Reliable Dung Counts4,26904,269
Other Guesses1,6046,0327,635
Unassessed Range1,6251,0492,674

Côte d'Ivoire: Elephant Estimates

Cause ofSurvey Details2 Number of Elephants Area Map Location
Input ZoneChange1TypeReliab.YearEstimate95% C.L. SourcePFS3 (km²) Lon. Lat.
+ Abokouamékro Faunal Resrve-GTE200011Kobon, pers. comm., 20022135 5.1W 6.9N
-GTE200011Kobon, pers. comm., 2002135 5.1W 6.9N
+ Azagny National Park-DCE200365 52Nandjui, 20032218 4.9W 5.2N
-DCE200365 52Nandjui, 2003218 4.9W 5.2N
+ Beki Bossematie Classified Forest-OE199335Theuerkauf et al., 20012389 3.5W 6.6N
-OE199335Theuerkauf et al., 2001389 3.5W 6.6N
+ Bolo Forest-OE19895Merz & Hoppe-Dominik, 1991288 5.8W 5.2N
-OE19895Merz & Hoppe-Dominik, 199188 5.8W 5.2N
+ Comoé National ParkDTASB20100Wild Chimpanzee Foundation, 2010111,670 4.6W 9.8N
DTASB20100Wild Chimpanzee Foundation, 201011,670 4.6W 9.8N
+ Davo Forest-OE198920Merz & Hoppe-Dominik, 19912126 6.1W 5.8N
-OE198920Merz & Hoppe-Dominik, 1991126 6.1W 5.8N
+ Djambamakrou Forest-OE198930Merz & Hoppe-Dominik, 19912274 3.2W 6.4N
-OE198930Merz & Hoppe-Dominik, 1991274 3.2W 6.4N
+ Duekoué Forest-OE19976Kobon, pers. comm., 20021536 7.1W 6.7N
-OE19976Kobon, pers. comm., 2002536 7.1W 6.7N
+ Fresco Classified Forest-OE199860Ministère des Eaux et Forêts, 200422,229 5.8W 5.1N
-OE199860Ministère des Eaux et Forêts, 20042,229 5.8W 5.1N
+ Go-Bodienou Forest-OE198920Merz & Hoppe-Dominik, 19911600 5.0W 5.4N
-OE198920Merz & Hoppe-Dominik, 1991600 5.0W 5.4N
+ Goin-Cavally Classified Forest-OE198970Merz & Hoppe-Dominik, 199111,890 7.8W 6.2N
-OE198970Merz & Hoppe-Dominik, 19911,890 7.8W 6.2N
+ Haut Bandama Fauna & Flora Reserve-OE200220Bouché, 200211,300 5.7W 8.5N
-OE200220Bouché, 20021,300 5.7W 8.5N
+ Haut Sassandra Classified Forest-OE199730Kobon, pers. comm., 200211,024 7.0W 7.2N
-OE199730Kobon, pers. comm., 20021,024 7.0W 7.2N
+ Keregbo Forest-OE198930Merz & Hoppe-Dominik, 19912213 3.8W 7.5N
-OE198930Merz & Hoppe-Dominik, 1991213 3.8W 7.5N
+ Marahoué National Park-GDE2002159 54Eggert, 2004b11,010 6.0W 7.1N
-GDE2002159 54Eggert, 2004b1,010 6.0W 7.1N
+ Mont Péko National Park-OE200040Kobon, pers. comm., 20022340 7.3W 7.0N
-OE200040Kobon, pers. comm., 2002340 7.3W 7.0N
+ Mont Sangbé National Park-OE200147Lauginie et al., 20012950 7.3W 8.0N
-OE200147Lauginie et al., 2001950 7.3W 8.0N
+ Niegré Classified Forest-OE198950Merz & Hoppe-Dominik, 199111,056 6.2W 5.4N
-OE198950Merz & Hoppe-Dominik, 19911,056 6.2W 5.4N
+ Okromodou Forest-OE198950Merz & Hoppe-Dominik, 19911945 5.6W 5.3N
-OE198950Merz & Hoppe-Dominik, 1991945 5.6W 5.3N
+ Scio Classified Forest-OE198930Merz & Hoppe-Dominik, 199111,338 7.8W 6.8N
-OE198930Merz & Hoppe-Dominik, 19911,338 7.8W 6.8N
+ Songan Tamin Mabi Yaya Classified Forest-OE199320Theuerkauf et al., 200111,698 3.4W 5.9N
-OE199320Theuerkauf et al., 20011,698 3.4W 5.9N
+ Taï National ParkDTDCB2010189 135Boafo & Nandjui, 201111,495 7.1W 5.7N
DTDCB2010189 135Boafo & Nandjui, 20111,495 7.1W 5.7N
+ Tené Forest-OE19985Kobon, pers. comm., 200234 5.4W 6.5N
-OE19985Kobon, pers. comm., 20024 5.4W 6.5N
+ Tiapleu Forest-OE198910Merz & Hoppe-Dominik, 19912380 8.2W 7.5N
-OE198910Merz & Hoppe-Dominik, 1991380 8.2W 7.5N

* 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.

Note that totals for the Definite, Probable, and Possible categories are derived by pooling the variances of individual estimates, as described at http://www.africanelephantdatabase.org/reliability. As a result, totals do not necessarily match the simple sum of the entries within a given category.

IUCNSpecies Survival Commission

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