2007 Regional Totals for Southern Africa

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

2007 Summary Totals for Southern Africa

Data Category	Definite	Probable	Possible	Speculative
Aerial or Ground Total Counts	18,431	0	0	0
Direct Sample Counts and Reliable Dung Counts	278,283	23,137	23,137	0
Other Dung Counts	27	49	9	0
Informed Guesses	977	0	1,588	201
Other Guesses	0	0	0	9,552
Totals 2006	297,718	23,186	24,734	9,753

Interpretation of Changes in Estimates from Previous Report

Cause of Change	Definite	Probable	Possible	Speculative
Repeat Survey	+47,727	+105	-141	0
New Population	+387	-48	+187	0
Different Technique	+447	+167	-688	-44
Different Area	+2,692	-951	-97	0
New Guess	-73	0	+88	+1,442
New Analysis	+26	-9	-11	-67
Population Lost	0	0	-29	0
Data Degraded	-79	+201	-673	+914
Totals	+51,126	-536	-1,364	+2,245

Area of Range Covered by Each Data Category (km²)

Data Category	Known Range	Possible Range	Total Range
Aerial or Ground Total Counts	43,478	0	43,478
Direct Sample Counts and Reliable Dung Counts	397,261	23,300	420,561
Other Dung Counts	482	0	482
Informed Guesses	14,801	10,988	25,789
Other Guesses	134,788	69,029	203,817
Unassessed Range	102,833	508,179	611,012
Totals	693,643	611,497	1,305,140

Elephant Estimates

Country	Definite	Probable	Possible	Speculative	Range Area (km²)	% of Regional Range	% of Range Assessed	IQI¹	PFS²
Angola	818	801	851	60	406,946	31	5	.03	1
Botswana	133,829	20,829	20,829	0	100,265	8	99	.87	2
Malawi	185	323	632	1,587	7,538	1	89	.17	3
Mozambique	14,079	2,396	2,633	6,980	334,786	26	77	.48	1
Namibia	12,531	3,276	3,296	0	146,921	11	55	.46	2
South Africa	17,847	0	638	22	30,455	2	100	.96	2
Swaziland	31	0	0	0	50	0	100	1.00	5
Zambia	16,562	5,948	5,908	813	201,247	15	61	.47	1
Zimbabwe	84,416	7,033	7,367	291	76,931	6	99	.91	2
Totals	297,718	23,186	24,734	9,753	1,305,140	39	53	.48	1

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.