Combining local knowledge and occupancy analysis for a rapid assessment of the forest elephant Loxodonta cyclotis in Cameroon's timber production forests
File(s)Brittain etal Oryx17 AcceptedMS.pdf (1.44 MB)
Accepted version
Author(s)
Brittain, S
Ngo Bata, M
de Ornellas, P
Milner-Gulland, EJ
Rowcliffe, M
Type
Journal Article
Abstract
Information on the distribution and abundance of the forest elephant Loxodonta cyclotis is needed to allocate limited resources appropriately and set conservation goals for the species. However, monitoring at large scales in forest habitats is complicated, expensive and time consuming. We investigated the potential of applying interview-based occupancy analysis as a tool for the rapid assessment of the distribution and relative abundance of forest elephants in eastern Cameroon. Using single-season occupancy models, we explored the covariates that affect forest elephant occupancy and detectability, and identified spatial and temporal patterns in population change and occupancy. Quantitative and qualitative socio-demographic data offer additional depth and understanding, placing the occupancy analysis in context and providing valuable information to guide conservation action. Detectability of forest elephants has decreased since 2008, which is consistent with the decline in perceived abundance in occupied sites. Forest elephants occupy areas outside protected areas and outside the known elephant range defined by IUCN. Critical conservation attention is required to assess forest elephant populations and the threats they face in these poorly understood areas. Interview-based occupancy analysis is a reliable and suitable method for a rapid assessment of forest elephant occupancy on a large scale, as a complement to, or the first stage in, a monitoring process.
Date Issued
2020-01
Date Acceptance
2017-09-20
Citation
Oryx, 2020, 54 (1), pp.90-100
ISSN
0030-6053
Publisher
Cambridge University Press (CUP)
Start Page
90
End Page
100
Journal / Book Title
Oryx
Volume
54
Issue
1
Copyright Statement
© Fauna & Flora International 2018. This paper has been accepted for publication and will appear in a revised form, subsequent to peer-review and/or editorial input by Cambridge University Press.
Subjects
Science & Technology
Life Sciences & Biomedicine
Biodiversity Conservation
Ecology
Biodiversity & Conservation
Environmental Sciences & Ecology
Cameroon
Central Africa
forest elephant
illegal killing
interviews
ivory
logging
population monitoring
ESTIMATING SITE OCCUPANCY
ECOLOGICAL KNOWLEDGE
DESIGNING OCCUPANCY
PRESENCE-ABSENCE
ABUNDANCE
MODELS
PROBABILITY
EXTINCTION
MOVEMENTS
MAMMALS
ConSci
Ecology
0502 Environmental Science and Management
0602 Ecology
0608 Zoology
Publication Status
Published
Date Publish Online
2018-03-19