Elephant Database
African Elephant Specialist Group

Dung Count (Line Transects) Stratum/Block

Congo
Phenotype: Forest (based on geographical location)
Data contributed by reuben@refleqt.co.za, last updated 29/04/2016
Report restricted by data provider
1139 km²
No strata
Show aggregates
36
MPD Area
1139km²

MPD Area

Internal name:
Stratum/block area (km²): 1139
Population estimate: 36
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval:
95% lower confidence limit: 12
95% upper confidence limit: 104
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 12
Asymmetric upper confidence interval: 104
Number of transects covered: 41
Total length of transects covered (in km): 122.79
Effective strip width: 1.61
Number of observations (encounters): 22
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): 90.0
Site where decay rate was measured:
Date (year) in which decay rate was measured:
Dung decay rate - bibliographical reference: Same figure of decay was used for the central African MIKE surveys across Central Africa: Blake 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): 19.76
Site where the defecation rate was measured: Santchou Reserve, Cameroon.
Defecation rate - bibliographical reference: Tchamba M (1992) Defaecation by the African forest elephant Loxodonta africana cyclotis in the Santchou Reserve, Cameroon. Mammalia 56: 155–158.
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: 56
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval:
95% lower confidence limit:
95% upper confidence limit:
Asymmetric upper confidence interval: 162
Asymmetric lower confidence interval: 19
Check if no estimate of precision available: false
Dung encounter rate: 0.179
IUCNSpecies Survival Commission

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