Elephant Database
African Elephant Specialist Group

Dung Count (Line Transects) Stratum/Block

Central African Republic
Phenotype: Forest with hybrid (based on genetic evidence gathered on-site)
Data contributed by peter.mwangi@iucn.org, last updated 24/08/2022
Report restricted by data provider
3861 km²
Dryseason
Recorded at stratum level
Show aggregates
204
Libwe Area
686km²
15
Kambi Area
400km²

Libwe Area

Internal name:
Stratum/block area (km²): 686
Population estimate: 204
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval: 151.0
95% lower confidence limit: 103
95% upper confidence limit: 405
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 103
Asymmetric upper confidence interval: 405
Number of transects covered: 25
Total length of transects covered (in km): 51.0
Effective strip width: 2.613
Number of observations (encounters):
How were distances to observations estimated?: Using instruments
Number of elephants seen:
Number of dungpile on which the decay estimate is based: 138
Was dung decay rate measured on site, and if so, how?: Retrospectively
Dung decay estimate used (days): 80.0
Site where decay rate was measured: Bai Hokou - Dzanga-Sangha Protected Area
Date (year) in which decay rate was measured: 2011
Dung decay rate - bibliographical reference:
Variance:
Standard error: 9.0
Value of t:
Degrees of freedom: 137
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: 0.23
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: 473
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval: 364.2
95% lower confidence limit:
95% upper confidence limit:
Asymmetric upper confidence interval:
Asymmetric lower confidence interval:
Check if no estimate of precision available: false
Dung encounter rate: 2.0
IUCNSpecies Survival Commission

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