Cameroon

Phenotype: Forest (based on genetic evidence gathered on-site)

Data contributed by peter.mwangi@iucn.org, last updated 22/10/2022

2012

Embargoed until 15/02/2015

2079 km²

Multiple strata reported as aggregate

Boumba Bek National Park

Internal name:

Stratum/block area (km²): 2079

Population estimate: 2062

Variance:

Standard error:

Value of t used to calculate 95% confidence interval:

Degrees of freedom:

95% confidence interval: 604.0

95% lower confidence limit: 1458

95% upper confidence limit: 2666

Check if no estimate of precision available: false

Asymmetric lower confidence interval: 1545

Asymmetric upper confidence interval: 2752

Number of transects covered: 106

Total length of transects covered (in km): 106.0

Effective strip width:

Number of observations (encounters): 1112

How were distances to observations estimated?: Using instruments

Number of elephants seen:

Number of dungpile on which the decay estimate is based: 82

Was dung decay rate measured on site, and if so, how?: Retrospectively

Dung decay estimate used (days): 67.0

Site where decay rate was measured: Boumba Bek National Park

Date (year) in which decay rate was measured:

Dung decay rate - bibliographical reference:

Variance:

Standard error: 7.26

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, 1991

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: 1269

Variance:

Standard error:

Value of t:

Degrees of freedom:

95% Confidence interval:

95% lower confidence limit: 1019.0

95% upper confidence limit: 1520.0

Asymmetric upper confidence interval: 1544

Asymmetric lower confidence interval: 1043

Check if no estimate of precision available: false

Dung encounter rate: 7.0