The most comprehensive data on elephant population and range worldwide.
Dung Count (Line Transects) Stratum/Block
Gabon
Loxodonta africana
African Elephant
Phenotype: Forest
(based on geographical location)
Data contributed by peter.mwangi@iucn.org,
last updated 23/05/2012
Monts Birougou
National Park
2007
Report restricted by data provider
690 km²
Multiple strata reported as aggregate
Monts Birougou National Park
Stratum/block area (km²):
690
Population estimate:
124
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval:
121.0
95% lower confidence limit:
3
95% upper confidence limit:
245
Check if no estimate of precision available:
false
Asymmetric lower confidence interval:
48
Asymmetric upper confidence interval:
290
Number of transects covered:
14
Total length of transects covered (in km):
28
Effective strip width:
Number of observations (encounters):
27
How were distances to observations estimated?:
Using instruments
Number of elephants seen:
1
Number of dungpile on which the decay estimate is based:
19
Was dung decay rate measured on site, and if so, how?:
Retrospectively
Dung decay estimate used (days):
71
Site where decay rate was measured:
Date (year) in which decay rate was measured:
Dung decay rate - bibliographical reference:
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval:
95% lower confidence limit:
95% upper confidence limit:
Check if no estimate of precision available:
true
Was defecation rate measured on-site?:
true
Estimate of defecation rate used (days):
19
Site where the defecation rate was measured:
Defecation rate - bibliographical reference:
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval:
95% lower confidence limit:
95% upper confidence limit:
Check if no estimate of precision available:
true
Estimate of dung density:
242
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval:
235.0
95% lower confidence limit:
7.0
95% upper confidence limit:
477.0
Asymmetric upper confidence interval:
571
Asymmetric lower confidence interval:
102
Check if no estimate of precision available:
false
Dung encounter rate:
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