2007 Regional Totals for Eastern Africa

All Years for Eastern Africa: 2016 — 2013 — 2007 — 2002 — 1998 — 1995

2007 Summary Totals for Eastern Africa

Data Category	Definite	Probable	Possible	Speculative
Aerial or Ground Total Counts	24,003	0	0	0
Direct Sample Counts and Reliable Dung Counts	112,111	27,990	27,990	0
Other Dung Counts	449	1,053	462	0
Informed Guesses	922	0	6,671	1,534
Other Guesses	0	0	0	2,009
Totals 2006	137,485	29,043	35,124	3,543

Interpretation of Changes in Estimates from Previous Report

Cause of Change	Definite	Probable	Possible	Speculative
Repeat Survey	+22,019	+6,003	+5,929	-550
New Population	-326	+777	+789	+83
Different Technique	-1,202	+2,921	+2,698	-1,108
Different Area	-2,511	+2,509	+2,478	0
New Guess	+811	0	+2,563	-1,556
New Analysis	+978	-870	-859	0
Data Degraded	0	0	-985	+936
Totals	+19,769	+11,341	+12,613	-2,195

Area of Range Covered by Each Data Category (km²)

Data Category	Known Range	Possible Range	Total Range
Aerial or Ground Total Counts	98,936	9,054	107,989
Direct Sample Counts and Reliable Dung Counts	213,940	11,840	225,779
Other Dung Counts	3,150	0	3,150
Informed Guesses	27,622	15,950	43,572
Other Guesses	10,082	3,089	13,171
Unassessed Range	145,148	341,252	486,400
Totals	498,878	381,185	880,063

Elephant Estimates

Country	Definite	Probable	Possible	Speculative	Range Area (km²)	% of Regional Range	% of Range Assessed	IQI¹	PFS²
Eritrea	96	0	8	0	5,293	1	100	.92	3
Ethiopia	634	0	920	206	38,365	4	68	.24	2
Kenya	23,353	1,316	4,946	2,021	107,113	12	82	.64	2
Rwanda	34	0	37	46	1,014	0	100	.29	4
Somalia	0	0	0	70	4,526	1	68	.00	3
Sudan	20	0	280	0	318,239	36	0	.00	1
Tanzania	108,816	27,937	29,350	900	390,366	44	66	.54	1
Uganda	2,337	1,985	1,937	300	15,148	2	74	.49	3
Totals	137,485	29,043	35,124	3,543	880,063	26	45	.36	2

¹IQI: Information Quality Index: This index quantifies overall data quality at the regional level based on the precision of estimates and the proportion of assessed elephant range (i.e. range for which estimates are available). The IQI ranges from zero (no reliable information) to one (perfect information).

²PFS: 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.