Detection and vocalisations of three owl species (Strigiformes) in temperate rainforests of southern Chile

dc.creatorNorambuena, Heraldo V.
dc.creatorMuñoz Pedreros, Andrés
dc.date2018
dc.date2021-04-30T16:40:39Z
dc.date2021-04-30T16:40:39Z
dc.date.accessioned2021-06-14T22:08:30Z
dc.date.available2021-06-14T22:08:30Z
dc.identifierNEW ZEALAND JOURNAL OF ZOOLOGY,Vol.45,121-135,2018
dc.identifierhttp://repositoriodigital.uct.cl/handle/10925/3233
dc.identifier10.1080/03014223.2017.1395749
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3301457
dc.descriptionConspecific broadcasts are effective to increase detection of owls. To determine the most appropriate time of the year to survey owls, we played conspecific owl vocalisations monthly in a temperate rainforest of southern Chile. From 12 broadcast points surveyed we recorded detections of Glaucidium nana, Strix rufipes and Tyto alba. Glaucidium nana presented a bimodal detection curve throughout the year and we recorded two regular vocalisations in response to broadcasting: contact pair call and territorial call. Strix rufipes and T. alba both showed a peak of detection between February and May. Strix rufipes presented three vocalisations: territorial call, contact pair call and female contact pair call while T. alba uttered two vocalisations: territorial call and twittering call. We recommend surveys during the end of the breeding season (austral summer-autumn) when detection is higher in most owls. Surveys should also take into consideration the variability of the vocalisations and include covariates in monitoring to evaluate occupancy/detection models.
dc.languageen
dc.publisherTAYLOR & FRANCIS LTD
dc.sourceNEW ZEALAND JOURNAL OF ZOOLOGY
dc.subjectBroadcast
dc.subjectGlaucidium nana
dc.subjectowl vocalisations
dc.subjectStrix rufipes
dc.subjectTyto alba
dc.titleDetection and vocalisations of three owl species (Strigiformes) in temperate rainforests of southern Chile
dc.typeArticle


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