Elephant Database
African Elephant Specialist Group

Botswana, 2007

All Years for Botswana: 201620132007200219981995

2007 Summary Totals for Botswana

Data Category Definite Probable Possible Speculative
Direct Sample Counts and Reliable Dung Counts133,82920,82920,8290
Totals 2006133,82920,82920,8290

Interpretation of Changes in Estimates from Previous Report

Cause of Change Definite Probable Possible Speculative
Repeat Survey+34,128+643+6430
Different Technique-928-1,051-1,0510

Area of Range Covered by Each Data Category (km²)

Data CategoryKnown RangePossible RangeTotal Range
Direct Sample Counts and Reliable Dung Counts88,35211,19099,543
Unassessed Range7220722

Botswana : Elephant Estimates

Cause ofSurvey Details2 Number of Elephants Area Map Location
Input ZoneChange1TypeReliab.YearEstimate95% C.L. SourcePFS3 (km²) Lon. Lat.
Chobe National Park & EnvironsRSAS2B200640,767 10,539DWNP, 2006212,195 24.6E 18.5S
Nxai Pan & Makgadikgadi National ParksRSAS3B20061,436 1,950DWNP, 2006211,476 24.8E 20.4S
Okavango DeltaRSAS2B200631,191 7,191DWNP, 2006217,160 23.1E 19.4S
Rest of Northern BotswanaRSAS2B200680,226 16,334DWNP, 20061118,303 23.5E 19.7S
Tuli Game ReserveDTAS2B20061,038 685DWNP, 200623,510 29.1E 22.2S

* 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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