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dc.contributor.authorSchaus, Jessica
dc.contributor.authorUzal, Antonio
dc.contributor.authorGentle, Louise K
dc.contributor.authorBaker, Philip J
dc.contributor.authorBearman-Brown, Lucy
dc.contributor.authorBullion, Simone
dc.contributor.authorGazzard, Abigail
dc.contributor.authorLockwood, Hannah
dc.contributor.authorNorth, Alexandra
dc.contributor.authorReader, Tom
dc.contributor.authorScott, Dawn M
dc.contributor.authorSutherland, Christopher S
dc.contributor.authorYarnell, Richard W
dc.identifier.citationSchaus , J , Uzal , A , Gentle , L K , Baker , P J , Bearman-Brown , L , Bullion , S , Gazzard , A , Lockwood , H , North , A , Reader , T , Scott , D M , Sutherland , C S & Yarnell , R W 2020 , ' Application of the Random Encounter Model in citizen science projects to monitor animal densities ' , Remote Sensing in Ecology and Conservation , vol. 6 , no. 4 , pp. 514-528 .
dc.identifier.otherPURE: 272468691
dc.identifier.otherPURE UUID: fac0a3e4-8444-45f1-82c0-7abd9355ba08
dc.identifier.otherBibtex: schaus2020application
dc.identifier.otherScopus: 85081986866
dc.identifier.otherORCID: /0000-0003-2073-1751/work/87404640
dc.descriptionFunding: The People's Trust for Endangered Species, Nottingham Trent University, British Hedgehog Preservation Society, The Heritage Fund.en
dc.description.abstractAbundance and density are vital metrics for assessing a species’ conservation status and for developing effective management strategies. Remote-sensing cameras are being used increasingly as part of citizen science projects to monitor wildlife, but current methodologies to monitor densities pose challenges when animals are not individually recognizable. We investigated the use of camera traps and the Random Encounter Model (REM) for estimating the density of West European hedgehogs (Erinaceus europaeus) within a citizen science framework. We evaluated the use of a simplified version of the REM in terms of the parameters’ estimation (averaged vs. survey-specific) and assessed its potential application as part of a large-scale, long-term citizen science project. We compared averaged REM estimates to those obtained via spatial capture–recapture (SCR) using data from nocturnal spotlight surveys. There was a high degree of concordance in REM-derived density estimates from averaged parameters versus those derived from survey-specific parameters. Averaged REM density estimates were also comparable to those produced by SCR at eight out of nine sites; hedgehog density was 7.5 times higher in urban (32.3 km−2) versus rural (4.3 km2) sites. Power analyses indicated that the averaged REM approach would be able to detect a 25% change in hedgehog density in both habitats with >90% power. Furthermore, despite the high start-up costs associated with the REM method, it would be cost-effective in the long term. The averaged REM approach is a promising solution to the challenge of large-scale and long-term species monitoring. We suggest including the REM as part of a citizen science monitoring project, where participants collect data and researchers verify and implement the required analysis.
dc.relation.ispartofRemote Sensing in Ecology and Conservationen
dc.rightsCopyright © 2020 The Authors. Remote Sensing in Ecology and Conservation published by John Wiley & Sons Ltd on behalf of Zoological Society of London. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.en
dc.subjectCamera trapsen
dc.subjectCitizen scienceen
dc.subjectDensity estimationen
dc.subjectSpatial capture-recaptureen
dc.subjectSpotlight surveysen
dc.subjectUrban wildlifeen
dc.subjectGF Human ecology. Anthropogeographyen
dc.subjectQA Mathematicsen
dc.subjectQH301 Biologyen
dc.titleApplication of the Random Encounter Model in citizen science projects to monitor animal densitiesen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.Statisticsen
dc.description.statusPeer revieweden

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