Could invasive lagomorphs increase the predation risk for guanaco (<i>Lama guanicoe</i>) by puma (<i>Puma concolor</i>) in the Chilean Central Andes?

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dc.contributor.authorInfante-Varela, Jose
dc.contributor.authorBonacic, Cristian
dc.date.accessioned2025-01-20T16:15:11Z
dc.date.available2025-01-20T16:15:11Z
dc.date.issued2024
dc.description.abstractInvasive species can have complex direct and indirect impacts on ecosystems. The impacts of invasive prey species on native prey can be difficult to observe if the latter migrate seasonally, and when the interaction is indirect. We hypothesize that invasive lagomorphs and snow dynamics indirectly drive predation risk for guanaco by puma. We employed camera-trapping data collected over multiple years and seasons in an altitudinal gradient in the Andes of Central Chile. We predicted a high spatial and temporal association between puma and lagomorph detections, given these prey species comprise most of puma diet in the area. We also expected a higher spatiotemporal association between guanaco and puma detections towards higher snow cover in the study area, because of downward altitudinal migration of the ungulate. We obtained 4863 mammalian detections. Our data shows that the detection of puma was positively associated with hare capture rate year-round. In addition, puma detection was positively associated with the interaction of snow cover and guanaco capture rate. Puma temporal activity strongly overlapped with hare, whereas puma apparently increased diurnal activity with an increase in guanaco capture rate. Predation risk for guanaco increased when snow cover was higher and decreased when guanaco migrated to higher altitudes during dryer months. We conclude it is of conservation concern that lagomorphs may be subsidizing pumas and modifying patterns of consumptive and non-consumptive effects of the predator on native prey populations.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s10530-024-03353-y
dc.identifier.eissn1573-1464
dc.identifier.issn1387-3547
dc.identifier.urihttps://doi.org/10.1007/s10530-024-03353-y
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90481
dc.identifier.wosidWOS:001252601800002
dc.issue.numero9
dc.language.isoen
dc.pagina.final3064
dc.pagina.inicio3049
dc.revistaBiological invasions
dc.rightsacceso restringido
dc.subjectGuanaco
dc.subjectHyperpredation
dc.subjectInvasive species
dc.subjectLagomorph
dc.subjectPredation risk
dc.subjectPuma
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleCould invasive lagomorphs increase the predation risk for guanaco (<i>Lama guanicoe</i>) by puma (<i>Puma concolor</i>) in the Chilean Central Andes?
dc.typeartículo
dc.volumen26
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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