Rwanda, 2007

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

2007 Summary Totals for Rwanda

Data Category	Definite	Probable	Possible	Speculative
Informed Guesses	34	0	37	46
Totals 2006	34	0	37	46

Interpretation of Changes in Estimates from Previous Report

Cause of Change	Definite	Probable	Possible	Speculative
New Guess	0	0	+37	-20
Totals	0	0	+37	-20

Area of Range Covered by Each Data Category (km²)

Data Category	Known Range	Possible Range	Total Range
Informed Guesses	1,014	0	1,014
Totals	1,014	0	1,014

Rwanda : 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.
Akagera-Mutara National Park	-	IG3	D	2002	34	46*	Lamprey, 2002	1	3,463	30.6E	1.6S
Volcans National Park	NG	IG3	D	2003	37		Gray, quest. reply, 2005	1	150	29.5E	1.5S

* 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.