Elephant Database
African Elephant Specialist Group

Dung Count (Line Transects) Stratum/Block

Democratic Republic of Congo
Phenotype: Forest (based on genetic evidence gathered on-site)
Data contributed by peter.mwangi@iucn.org, last updated 13/07/2022
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4390 km²
No strata
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Bili-Gangu Hunting Zone

Internal name:
Stratum/block area (km²): 4390
Population estimate: 365
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval: 217.0
95% lower confidence limit: 148
95% upper confidence limit: 582
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 208
Asymmetric upper confidence interval: 642
Number of transects covered: 48
Total length of transects covered (in km): 142.0
Effective strip width:
Number of observations (encounters): 48
How were distances to observations estimated?: Using instruments
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): 55.0
Site where decay rate was measured: Ituri, DRC
Date (year) in which decay rate was measured: 1992
Dung decay rate - bibliographical reference: Hart, 1994
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: RFO (Ituri), DRC
Defecation rate - bibliographical reference: Tchamba, 1992
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: 90
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval: 54.0
95% lower confidence limit: 36.0
95% upper confidence limit: 144.0
Asymmetric upper confidence interval: 158
Asymmetric lower confidence interval: 51
Check if no estimate of precision available: false
Dung encounter rate: 0.0
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