Chad, 2002

All Years for Chad: 2016 — 2013 — 2007 — 2002 — 1998 — 1995

2002 Summary Totals for Chad

Data Category	Definite	Possible	Speculative
Aerial or Ground Total Counts	1,989	0	0
Informed Guesses	0	2,000	550
Total	1,989	2,000	550

No changes between current and previous report.

Chad : Elephant Estimates

	Survey Details²			Number of Elephants				Area	Map Location
Input Zone	Type	Reliab.	Year	Estimate	95% C.L.	Source	PFS³	(km²)	Lon.	Lat.
Dembo Area	IG3	D	2002	600	100*	Dolmia Malachie and Lassou, 2002	3	2,409	18.0E	8.2N
Gagal-Yapala Area	IG3	D	2002	400	100*	Dolmia Malachie and Lassou, 2002	2	5,098	14.9E	9.1N
Koloudia-Doumdoum Area	IG3	D	2002	50	50*	Dolmia Malachie and Lassou, 2002	3	2,180	15.3E	13.4N
Lac Fitri Area	IG3	D	2002	200	100*	Dolmia Malachie and Lassou, 2002	2	11,670	17.6E	12.9N
Larmanaye Area	IG3	D	2002	100	50*	Dolmia Malachie and Lassou, 2002	3	2,340	15.5E	8.1N
Massenya-Mandjafa Area	IG3	D	2002	150	50*	Dolmia Malachie and Lassou, 2002	2	10,864	16.3E	11.3N
Siniaka-Minia Faunal Reserve	IG3	D	2002	500	100*	Dolmia Malachie and Lassou, 2002	2	4,743	18.2E	10.4N
Zakouma National Park	AT2	A	2000	1,989		Planton, 2000	2	2,987	19.6E	10.8N

* 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.