Elephant Database
African Elephant Specialist Group

Dung Count (Line Transects) Stratum/Block

Congo
Phenotype: Forest (based on genetic evidence gathered on-site)
Data contributed by peter.mwangi@iucn.org, last updated 15/07/2022
Report restricted by data provider
13525 km²
Recorded at stratum level
Show aggregates

Southern sector, Odzala Kokoua National Park

Internal name:
Stratum/block area (km²): 6202
Population estimate: 5897
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval: 1917.0
95% lower confidence limit: 3980
95% upper confidence limit: 7814
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 4284
Asymmetric upper confidence interval: 8117
Number of transects covered: 42
Total length of transects covered (in km): 105.0
Effective strip width:
Number of observations (encounters): 1223
How were distances to observations estimated?: By eye
Number of elephants seen:
Number of dungpile on which the decay estimate is based:
Was dung decay rate measured on site, and if so, how?: Decay rate NOT measured on site
Dung decay estimate used (days): 90.0
Site where decay rate was measured: Central Africa Forest
Date (year) in which decay rate was measured: 2004
Dung decay rate - bibliographical reference: MIKE 2005
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?: false
Estimate of defecation rate used (days): 19.0
Site where the defecation rate was measured: Central Africa Forest
Defecation rate - bibliographical reference: MIKE 2005
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: 1626
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval: 528.5
95% lower confidence limit: 1098.0
95% upper confidence limit: 2155.0
Asymmetric upper confidence interval: 2238
Asymmetric lower confidence interval: 1181
Check if no estimate of precision available: false
Dung encounter rate: 10.0
IUCNSpecies Survival Commission

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