Spatial Capture-Recapture With Partial Identity: An Application to Camera Traps

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dc.contributor.authorAugustine, Ben C.en
dc.contributor.authorRoyle, J. Andrewen
dc.contributor.authorKelly, Marcella J.en
dc.contributor.authorSatter, Christopher B.en
dc.contributor.authorAlonso, Robert S.en
dc.contributor.authorBoydston, Erin E.en
dc.contributor.authorCrooks, Kevin R.en
dc.contributor.departmentFish and Wildlife Conservationen
dc.date.accessioned2020-07-14T12:55:14Zen
dc.date.available2020-07-14T12:55:14Zen
dc.date.issued2018-03en
dc.description.abstractCamera trapping surveys frequently capture individuals whose identity is only known from a single flank. The most widely used methods for incorporating these partial identity individuals into density analyses discard some of the partial identity capture histories, reducing precision, and, while not previously recognized, introducing bias. Here, we present the spatial partial identity model (SPIM), which uses the spatial location where partial identity samples are captured to probabilistically resolve their complete identities, allowing all partial identity samples to be used in the analysis. We show that the SPIM outperforms other analytical alternatives. We then apply the SPIM to an ocelot data set collected on a trapping array with double-camera stations and a bobcat data set collected on a trapping array with single-camera stations. The SPIM improves inference in both cases and, in the ocelot example, individual sex is determined from photographs used to further resolve partial identities-one of which is resolved to near certainty. The SPIM opens the door for the investigation of trapping designs that deviate from the standard two camera design, the combination of other data types between which identities cannot be deterministically linked, and can be extended to the problem of partial genotypes.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1214/17-AOAS1091en
dc.identifier.issn1932-6157en
dc.identifier.issue1en
dc.identifier.urihttp://hdl.handle.net/10919/99352en
dc.identifier.volume12en
dc.language.isoenen
dc.rightsCreative Commons CC0 1.0 Universal Public Domain Dedicationen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.subjectSpatial capture-recaptureen
dc.subjectpartial identityen
dc.subjectcamera trappingen
dc.subjectmultiple marksen
dc.titleSpatial Capture-Recapture With Partial Identity: An Application to Camera Trapsen
dc.title.serialAnnals of Applied Statisticsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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