Tree cavity density is a limiting factor for a secondary cavity nester in second-growth Andean temperate rainforests

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dc.catalogadordfo
dc.contributor.authorAltamirano Oyarzún, Tomás Alberto
dc.contributor.authorNovoa Galaz, Fernando Javier
dc.contributor.authorIbarra Eliessetch, José Tomás
dc.contributor.authorNavarrete Campos, Sergio Andrés
dc.contributor.authorBonacic, Salas Cristián
dc.contributor.authorMartin, Kathy
dc.date.accessioned2024-08-22T15:01:47Z
dc.date.available2024-08-22T15:01:47Z
dc.date.issued2024
dc.description.abstractCavity-nesting bird populations are most frequently limited by the number of tree cavities available in second-growth forests. However, this possible limitation of a key resource is less clear in old-growth forests. We compared forest attributes (i.e., basal area, density of larger trees, density of dead trees, and tree cavity density) in second-growth and old-growth stands in Andean temperate rainforests in southern Chile. To examine the role of nest-site availability in limiting the populations of Aphrastura spinicauda (Thorn-Tailed Rayadito), a secondary cavity-nesting bird species, we conducted an experiment in which nest boxes were added and removed in old-growth and second-growth forests during a 5-yr period (20082013). In old-growth forests, as compared to second-growth forests, we found a more than double basal area (99.6 vs. 43.7 m2 ha–1), a three times higher density of larger trees (88.2 vs. 36.4 trees ha–1), and a 1.5 times higher number of small cavities (25.9 vs. 10.3 cavities ha–1). The density of cavities also strongly increased with tree diameter and basal area. In secondgrowth forests, A. spinicauda showed a strong response to the addition and removal of nest boxes, with population abundance increasing by 13% and then decreasing by 50%, respectively. In contrast, we found no impact in old-growth stands. Our experiment emphasizes the importance of maintaining large and dead trees in second-growth, disturbed, and managed forests. These trees provide suitable cavities for A. spinicauda, and likely many other secondary cavity nesters, increasing their abundances in a Globally significant Biodiversity Hotspot in southern South America.
dc.fuente.origenORCID
dc.identifier.doi10.1093/ornithapp/duae031
dc.identifier.eissn2732-4621
dc.identifier.issn0010-5422
dc.identifier.urihttps://doi.org/10.1093/ornithapp/duae031
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87598
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Altamirano Oyarzun Tomas Alberto; S/I; 132482
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Novoa Galaz Fernando Javier; S/I; 1051009
dc.information.autorucSede Regional de Villarrica; Ibarra Eliessetch Jose Tomas; 0000-0002-7705-3974; 120091
dc.information.autorucFacultad de Ciencias Biológicas; Navarrete Campos Sergio Andres; 0000-0003-4021-3863; 100292
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Bonacic Salas Cristian; 0000-0003-2175-076X; 100304
dc.language.isoen
dc.nota.accesoContenido parcial
dc.revistaOrnithological Applications
dc.rightsacceso restringido
dc.subjectAphrastura spinicauda
dc.subjectChile
dc.subjectForest management
dc.subjectResource limitation
dc.subjectSecondary cavity-nesting birds
dc.subjectTemperate rainforests
dc.subjectThorn-Tailed Rayadito
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.subject.ods15 Life on land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleTree cavity density is a limiting factor for a secondary cavity nester in second-growth Andean temperate rainforests
dc.typeartículo
sipa.codpersvinculados132482
sipa.codpersvinculados1051009
sipa.codpersvinculados120091
sipa.codpersvinculados100292
sipa.codpersvinculados100304
sipa.trazabilidadORCID;2024-08-19
sipa.trazabilidadORCID;2024-08-19
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