Elephant Database
African Elephant Specialist Group

Dung Count (Line Transects) Stratum/Block

Liberia
MIKE site
Phenotype: Forest (based on geographical location)
Data contributed by peter.mwangi@iucn.org, last updated 09/03/2022
2009
Creative Commons License
630 km²
Multiple strata reported as aggregate
Show aggregates

Sapo National Park

Internal name:
Stratum/block area (km²): 630
Population estimate: 124
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval: 99.0
95% lower confidence limit: 25
95% upper confidence limit: 223
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 44
Asymmetric upper confidence interval: 242
Number of transects covered:
Total length of transects covered (in km): 34.0
Effective strip width:
Number of observations (encounters): 82
How were distances to observations estimated?: Using instruments
Number of elephants seen:
Number of dungpile on which the decay estimate is based: 217
Was dung decay rate measured on site, and if so, how?: Retrospectively
Dung decay estimate used (days): 77.0
Site where decay rate was measured: Sopa National Park
Date (year) in which decay rate was measured: 2009
Dung decay rate - bibliographical reference:
Variance:
Standard error: 2.41
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: Santchou Reserve, Cameroon
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: 303
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval: 302.0
95% lower confidence limit: 1.02
95% upper confidence limit: 605.02
Asymmetric upper confidence interval: 426
Asymmetric lower confidence interval: 177
Check if no estimate of precision available: false
Dung encounter rate: 2.0
IUCNSpecies Survival Commission

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