The influence of trap type on evaluating population structure of the semifossorial and social rodent <i>Octodon degus</i>

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dc.contributor.authorBurger, Joseph R.
dc.contributor.authorChesh, Adrian S.
dc.contributor.authorCastro, Rodrigo A.
dc.contributor.authorOrtiz Tolhuysen, Liliana
dc.contributor.authorTorre, Ignasi
dc.contributor.authorEbensperger, Luis A.
dc.contributor.authorHayes, Loren D.
dc.date.accessioned2025-01-21T00:07:56Z
dc.date.available2025-01-21T00:07:56Z
dc.date.issued2009
dc.description.abstractTrap type may influence captures of individuals in different age-sex categories in small mammal studies, resulting in biased population and demographic information. We deployed 4 live trap types at burrow systems of the rodent, Octodon degus Molina, 1782, in central Chile to determine trap efficacy in capturing individuals of 6 demographic categories. We captured 2672 individuals in 17 709 trap days (15.1% trapping success). Tomahawks were the most efficient trap capturing half of individuals during both years, followed by mesh Sherman traps, large Sherman traps, and medium Sherman traps in 2005. All trap types equally sampled sexes. Large and medium Sherman traps provided similar demographic structure, where half of the individuals captured were pups; Tomahawk traps sampled more adults than pups. Relative captures of pups were similar across different trap types, suggesting that pups are equally sampled by each of the deployed trap types. Relative captures of adults were lower in Sherman traps, suggesting that this age class avoided solid-walled traps. For Octodon degus, the sole use of Tomahawk traps may produce sufficient, unbiased demographic data. Only 4 trap mortalities occurred (0.15%). Researchers may minimize trap mortality without compromising sufficient demographic sampling by trapping during peak animal activity.
dc.fuente.origenWOS
dc.identifier.doi10.4098/j.at.0001-7051.047.2008
dc.identifier.eissn2190-3743
dc.identifier.issn0001-7051
dc.identifier.urihttps://doi.org/10.4098/j.at.0001-7051.047.2008
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95649
dc.identifier.wosidWOS:000270742800003
dc.issue.numero4
dc.language.isoen
dc.pagina.final320
dc.pagina.inicio311
dc.revistaActa theriologica
dc.rightsacceso restringido
dc.subjectdemography
dc.subjectlive-trapping
dc.subjectsmall mammals
dc.subjectSherman trap
dc.subjectsociality
dc.subjectTomahawk trap
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleThe influence of trap type on evaluating population structure of the semifossorial and social rodent <i>Octodon degus</i>
dc.typeartículo
dc.volumen54
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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