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 reuben@refleqt.co.za, last updated 13/07/2022
Report restricted by data provider
16189 km²
Wetseason
Recorded at stratum level
Show aggregates
837
Ngombe Southwest
1624km²

Ngombe Southwest

Internal name:
Stratum/block area (km²): 1624
Population estimate: 837
Variance: 23505.89598
Standard error: 153.3163265
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval: 300.5
95% lower confidence limit: 595
95% upper confidence limit: 1176
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 595
Asymmetric upper confidence interval: 1176
Number of transects covered: 33
Total length of transects covered (in km): 82.0
Effective strip width:
Number of observations (encounters): 362
How were distances to observations estimated?:
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:
Date (year) in which decay rate was measured:
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: false
Was defecation rate measured on-site?: false
Estimate of defecation rate used (days): 19.0
Site where the defecation rate was measured:
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: false
Estimate of dung density: 881
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval:
95% lower confidence limit: 627.0
95% upper confidence limit: 1239.0
Asymmetric upper confidence interval:
Asymmetric lower confidence interval:
Check if no estimate of precision available: false
Dung encounter rate: 3.0
IUCNSpecies Survival Commission

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