Elephant Database
African Elephant Specialist Group

Dung Count (Line Transects) Stratum/Block

Equatorial Guinea
Phenotype: Forest (based on geographical location)
Data contributed by julian.blanc@gmail.com, last updated 18/11/2013
Creative Commons License
24365 km²
Wetseason
No strata
Show aggregates
884
Rio Muni
24635km²

Rio Muni

Internal name:
Stratum/block area (km²): 24635
Population estimate: 884
Variance:
Standard error:
Value of t used to calculate 95% confidence interval:
Degrees of freedom:
95% confidence interval: 676.0
95% lower confidence limit: 208
95% upper confidence limit: 1560
Check if no estimate of precision available: false
Asymmetric lower confidence interval: 437
Asymmetric upper confidence interval: 1789
Number of transects covered: 83
Total length of transects covered (in km): 233.0
Effective strip width: 0.0423
Number of observations (encounters): 199
How were distances to observations estimated?: Using instruments
Number of elephants seen: 0
Number of dungpile on which the decay estimate is based: 108
Was dung decay rate measured on site, and if so, how?: Retrospectively
Dung decay estimate used (days): 138.0
Site where decay rate was measured: Rio Muni
Date (year) in which decay rate was measured: 2011
Dung decay rate - bibliographical reference: Murai, M. et al., 2013. Priority Areas for Large Mammal Conservation in Equatorial Guinea. PLoS ONE, 8(9), p.e75024.
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval: 17.0
95% lower confidence limit: 121.0
95% upper confidence limit: 155.0
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 MN (1991) Defaecation by the African forest elephant (Loxodonta africana cyclotis) in the Santchou reserve, Cameroon. Nature et Faune, 7: 27–31. Fa JE, Ryan SF, Bell DJ (2005) Hunting vulnerability, ecological characteristics and harvest rates of
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: 88
Variance:
Standard error:
Value of t:
Degrees of freedom:
95% Confidence interval:
95% lower confidence limit:
95% upper confidence limit:
Asymmetric upper confidence interval:
Asymmetric lower confidence interval:
Check if no estimate of precision available: true
Dung encounter rate:
IUCNSpecies Survival Commission

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