Occurrence patterns and niche relationships of sympatric owls in South American temperate forests: A multi-scale approach

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dc.contributor.authorIbarra Eliessetch, José Tomás
dc.contributor.authorMartin, Kathy
dc.contributor.authorDrever, Mark C.
dc.contributor.authorVergara, Gonzalo
dc.date.accessioned2024-01-10T12:11:28Z
dc.date.available2024-01-10T12:11:28Z
dc.date.issued2014
dc.description.abstractHabitat-specialists have narrower niches, but achieve higher or similar peak performance (e.g. occurrence probability, psi) than habitat-generalists along resource gradients that may be selected from the stand- to landscape-levels. Understanding the relationship between niche width and psi of forest owls will facilitate the development of appropriate management recommendations for their conservation. We assessed psi of the threatened habitat-specialist rufous-legged owls (Strix rufipes) and habitat-generalist austral pygmy-owls (Glaucidium nana) across three spatial scales, and tested whether they differed in resource utilization and peak psi in temperate forests of southern Chile. We conducted 1145 broadcast surveys at 101 sites and used multi-season occupancy models, accounting for imperfect detection, to estimate psi. For S. rufipes, psi ranged between 0.05 and 1 across sites, and was positively associated with the variability (standard deviation, SD) in diameter at breast height (DBH) of trees and bamboo understory density. For G. nana, psi ranged between 0.67 and 0.98, and was positively associated with forest-patch shape index (irregularity and edge effects) and forest cover at 180 ha, although the parameter estimates were imprecise. Relative to G. nana, S. rufipes had lower total resource utilization due to lower psi over gradients of all covariates, but achieved similar peak psi for resources related with stand-level forest complexity and forest stability at the landscape scale. Occurrence of habitat-specialist owls will be promoted if multi-aged stands with a variety of tree sizes (SD of DBH = 19.9 +/- 9 cm), including large old-growth trees, with relatively high bamboo cover (34.2 +/- 26.6%), are retained. Landscapes with forest cover >63.5% would also favor occurrence by habitat-specialist owls. (C) 2014 Elsevier B.V. All rights reserved.
dc.description.funderChilean Ministry of the Environment
dc.description.funderCentre of Local Development (Campus Villarrica PUC)
dc.description.funderRufford Small Grants Foundation
dc.description.funderCleveland Metroparks Zoo
dc.description.funderCleveland Zoological Society
dc.description.funderEnvironment Canada
dc.description.funderNSERC-CREATE Training Program in Biodiversity Research
dc.description.funderDonald S. McPhee Fellowship Award
dc.description.funderMary and David Macaree Fellowship Award
dc.description.funderPeregrine Fund
dc.description.funderChilean Forest Service (CONAF)
dc.description.funderComision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
dc.fechaingreso.objetodigital25-03-2024
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.foreco.2014.08.027
dc.identifier.eissn1872-7042
dc.identifier.issn0378-1127
dc.identifier.urihttps://doi.org/10.1016/j.foreco.2014.08.027
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76658
dc.identifier.wosidWOS:000343844200031
dc.information.autorucVillarrica ; Ibarra Eliessetch, José Tomás ; 0000-0002-7705-3974 ; 120091
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final291
dc.pagina.inicio281
dc.publisherELSEVIER SCIENCE BV
dc.revistaForest Ecology and Management
dc.rightsacceso restringido
dc.subjectDetectability
dc.subjectGlaucidium nana
dc.subjectGeneralists
dc.subjectHabitat suitability models
dc.subjectSpecialists
dc.subjectStrix rufipes
dc.subjectRUFOUS-LEGGED OWLS
dc.subjectHABITAT SELECTION
dc.subjectSITE OCCUPANCY
dc.subjectSTRIX-RUFIPES
dc.subjectPYGMY OWLS
dc.subjectOLD-GROWTH
dc.subjectMODELS
dc.subjectCONSERVATION
dc.subjectBIODIVERSITY
dc.subjectFRAGMENTATION
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleOccurrence patterns and niche relationships of sympatric owls in South American temperate forests: A multi-scale approach
dc.typeartículo
dc.volumen331
sipa.codpersvinculados120091
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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