Authors
Roland Kays, Brian S Arbogast, Megan Baker‐Whatton, Chris Beirne, Hailey M Boone, Mark Bowler, Santiago F Burneo, Michael V Cove, Ping Ding, Santiago Espinosa, André Luis Sousa Gonçalves, Christopher P Hansen, Patrick A Jansen, Joseph M Kolowski, Travis W Knowles, Marcela Guimarães Moreira Lima, Joshua Millspaugh, William J McShea, Krishna Pacifici, Arielle W Parsons, Brent S Pease, Francesco Rovero, Fernanda Santos, Stephanie G Schuttler, Douglas Sheil, Xingfeng Si, Matt Snider, Wilson R Spironello
Publication date
2020/6
Journal
Methods in Ecology and Evolution
Volume
11
Issue
6
Pages
700-713
Description
- Camera traps deployed in grids or stratified random designs are a well‐established survey tool for wildlife but there has been little evaluation of study design parameters.
- We used an empirical subsampling approach involving 2,225 camera deployments run at 41 study areas around the world to evaluate three aspects of camera trap study design (number of sites, duration and season of sampling) and their influence on the estimation of three ecological metrics (species richness, occupancy and detection rate) for mammals.
- We found that 25–35 camera sites were needed for precise estimates of species richness, depending on scale of the study. The precision of species‐level estimates of occupancy (ψ) was highly sensitive to occupancy level, with <20 camera sites needed for precise estimates of common (ψ > 0.75) species, but more than 150 camera sites likely needed for rare (ψ < 0.25) species. Species …
Scholar articles
R Kays, BS Arbogast, M Baker‐Whatton, C Beirne… - Methods in Ecology and Evolution, 2020