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Comparing interview methods with camera trap data to inform occupancy models of hunted mammals in forest habitats

Brittain, S; Rowcliffe, M; Kentatchime, F; Tudge, S; Kamonge-Tagne, T; Milner-Gulland, EJ; (2022) Comparing interview methods with camera trap data to inform occupancy models of hunted mammals in forest habitats. Conservation Science and Practice , 4 (4) , Article e12637. 10.1111/csp2.12637. Green open access

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Abstract

Few studies explicitly assess the robustness and practicality of occupancy analysis informed by local inhabitants, compared to estimates from conventional monitoring methods within different contexts. This study evaluates the efficacy and robustness of occupancy models based on camera trap data, and two locally informed methods: seasonal interviews and hunter diaries, for monitoring 13 hunted mammal species in south-eastern Cameroon. We triangulate estimates of detectability and occupancy to assess the precision and comparability of their estimates for different species, and their cost. Camera trap estimates are comparable with estimates from locally informed methods in 7 of 11 available cases, but produced the lowest detection probabilities for all species in both villages. While camera traps provide robust estimates for abundant species with a high detection probability, locally informed methods can provide estimates of occupancy comparable to camera trap estimates, but at significantly less cost. They are particularly useful where camera trap detection rates (p) are too low to produce robust occupancy model estimates, notably for rare or cryptic species. The methods, survey effort and animals that can be monitored robustly vary between villages. As such, consideration should be given before monitoring commences to ensure that the most effective and informative approach is used.

Type: Article
Title: Comparing interview methods with camera trap data to inform occupancy models of hunted mammals in forest habitats
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/csp2.12637
Publisher version: https://doi.org/10.1111/csp2.12637
Language: English
Additional information: © 2022 The Authors. Conservation Science and Practice published by Wiley Periodicals LLC on behalf of Society for Conservation Biology. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: Bushmeat, Cameroon, hunting, local ecological knowledge, monitoring, occupancy, wild meat
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment
URI: https://discovery.ucl.ac.uk/id/eprint/10142227
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