Congo, 2002

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

2002 Summary Totals for Congo

Data Category	Definite	Probable	Possible	Speculative
Other Dung Counts	0	18,222	5,572	0
Informed Guesses	431	0	1,000	2,300
Total	431	18,222	6,572	2,300

No changes between current and previous report.

Congo : Elephant Estimates

	Survey Details²			Number of Elephants				Area	Map Location
Input Zone	Type	Reliab.	Year	Estimate	95% C.L.	Source	PFS³	(km²)	Lon.	Lat.
Conkouati National Park	IG3	D	2000	1,000		Maisels pers. comm., 2003	3	1,587	11.5E	3.7S
Nouabalé-Ndoki National Park	IG3	D	2001	431	2300*	Maisels, 2002b	2	3,962	16.6E	2.5N
Odzala National Park & environs	DC2	C	2000	18,222	5,572	Thomas et al., 2001	2	7,818	14.9E	0.6N

* 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.