Elephant Database
African Elephant Specialist Group

Niger
2016 African Elephant Status Report

All Years for Niger: 201620132007200219981995

Summary Totals for Niger

Estimates from SurveysGuesses% Known and
Possible Range
Area (km2)
Survey categoryEstimate± 95% CLFromTo
Aerial Sample Counts00100.02,333
Degraded Data17170.00
Totals 2015001717  
Totals 20068501717  
Assessed Range100.02,333
Unassessed Range0.00
Total Range1002,333

Summary Totals for Niger

Data Category Definite Probable Possible Speculative
Direct Sample Counts and Reliable Dung Counts0000
Other Guesses00017
Totals 201500017
Totals 2006850170

Interpretation of Changes in Estimates from Previous Report

 Estimates from SurveysGuessesArea
Cause of Change Estimate ± 95% CL From To% Known and PossibleTotal
Different Technique-85000100.02,333
Data Degraded00000.00
Totals-85000100.02,333

Interpretation of Changes in Estimates from Previous Report

Cause of Change Definite Probable Possible Speculative
Different Technique-85000
Totals-85000

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

Cause of Change Definite Probable Possible Speculative
Different Technique-85000
Totals-85000

Area of Range Covered by Each Data Category (km²)

Data CategoryKnown RangePossible RangeTotal Range
Direct Sample Counts and Reliable Dung Counts2,33302,333
Unassessed Range000
Totals2,33302,333

Niger: Elephant Estimates

Cause ofSurvey Details2 Number of Elephants Area Map Location
Input ZoneChange1TypeReliab.YearEstimate95% C.L. SourcePFS3 (km²) Lon. Lat.
+ Babban Rafi Forest-OE200517Issa, pers. comm., 20051430 7.0E 13.1N
-OE200517Issa, pers. comm., 2005430 7.0E 13.1N
+ W du Niger National ParkDTASB20150Bouché et al., 201512,294 2.4E 12.3N
DTASB20150Bouché et al., 20152,294 2.4E 12.3N

* 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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