Malawi, 2007

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

2007 Summary Totals for Malawi

Data Category	Definite	Probable	Possible	Speculative
Direct Sample Counts and Reliable Dung Counts	74	323	323	0
Informed Guesses	111	0	309	20
Other Guesses	0	0	0	1,567
Totals 2006	185	323	632	1,587

Interpretation of Changes in Estimates from Previous Report

Cause of Change	Definite	Probable	Possible	Speculative
Repeat Survey	-18	-308	-94	0
New Population	+75	0	0	0
New Guess	-439	0	+165	+530
Data Degraded	-80	-938	-1,087	+1,037
Totals	-462	-1,246	-1,017	+1,567

Area of Range Covered by Each Data Category (km²)

Data Category	Known Range	Possible Range	Total Range
Direct Sample Counts and Reliable Dung Counts	2,908	0	2,908
Informed Guesses	1,511	0	1,511
Other Guesses	2,316	0	2,316
Unassessed Range	0	804	804
Totals	6,735	804	7,538

Malawi : Elephant Estimates

	Cause of	Survey Details²			Number of Elephants				Area	Map Location
Input Zone	Change¹	Type	Reliab.	Year	Estimate	95% C.L.	Source	PFS³	(km²)	Lon.	Lat.
Kasungu National Park	RS	AS1	B	2005	58	218	Ferreira et al., 2005	1	2,463	33.1E	12.9S
Liwonde National Park	NG	OG3	E	2006	530		African Parks Foundation, 2006b	2	538	35.3E	14.9S
Majete Wildlife Reserve	NP	IG3	D	2006	70		African Parks Foundation, 2006b	3	140	34.7E	16.0S
Nkhota-Kota Wildlife Reserve	DD	AS2	E	1995	1,037	1,511	JICA & Government of Malawi, 1997	1	1,802	34.0E	12.9S
Nyika National Park	-	AS1	B	1997	339	239	Gibson, 1997	1	3,134	33.8E	10.6S
Phirilongwe Forest Reserve	-	IG3	D	1998	50		S.M. Munthali, pers. comm., 1998	2	640	35.0E	14.6S
Thuma Forest Reserve	-	IG3	D	1998	30	20*	S.M. Munthali, pers. comm., 1998	2	370	34.2E	13.9S
Vwaza Marsh Wildlife Reserve	NG	IG3	D	2005	270		Ferreira et al., 2005	1	976	33.4E	11.0S

* 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.