Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina

Autores
Jauregui, Adrián; Rodríguez, Sabrina Andrea; González García, Lucas Nahuel; González, Exequiel; Segura, Luciano Noel
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nest-site selection is crucial for birds’ breeding success and, therefore, studies on this topic are critical in order to understand what features species need. This is particularly important in areas with conservation issues, where habitats and/or trees with the required features may be scarce. However, little information is available on the nest-site selection patterns of woodpeckers breeding in southern temperate forests, where tree logging considerably reduced forest cover and, hence, availability of trees suitable for cavity excavation. In addition, previous studies did not include assessments at different spatial scales nor including quantitative wood density data. Therefore, the main objective of this study is to assess nest-site selection patterns (at the habitat and cavity-tree scales) of the Campo Flicker Colaptes campestris and the Green-barred Woodpecker C. melanochloros breeding in a threatened southern temperate forest of central-east Argentina. Moreover, we report the first wood density data of the trees used by these two woodpeckers when excavating cavities and assess niche partitioning by comparing their cavities and cavity-trees to one another. To assess selection at a habitat scale (recording forest cover and edge of stands and trees), we compared selected breeding habitats to randomly found habitats. At a tree-scale (recording tree height, diameter, wood density and wood decay status), we compared cavity-trees to randomly found trees. Most cavities were excavated in medium (DBH = 20–35 cm) or large (>35 cm) size trees with wood density < 0.5 g/cm3. Generalized linear models indicated that woodpeckers’ propensity to excavate a new cavity was negatively correlated with tree wood density (which was negatively correlated to wood decay status) and positively to tree size. Both woodpecker species focused more importantly on tree features compared to habitat features when excavating cavities. Because forest patches containing mid- and large-sized trees with main stems and/or branches with wood softened by decay processes have become less abundant in these forests due to uncontrolled logging actions, we emphasize the need to conserve trees with these characteristics to ensure the availability of the preferred features of these woodpeckers.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Campo Flicker
Colaptes campestris
Colaptes melanochloros
Green-barred Woodpecker
Nest-tree
Nest-site selection
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/130328
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/130328
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network_name_str SEDICI (UNLP)
spelling Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of ArgentinaJauregui, AdriánRodríguez, Sabrina AndreaGonzález García, Lucas NahuelGonzález, ExequielSegura, Luciano NoelCiencias NaturalesCampo FlickerColaptes campestrisColaptes melanochlorosGreen-barred WoodpeckerNest-treeNest-site selectionNest-site selection is crucial for birds’ breeding success and, therefore, studies on this topic are critical in order to understand what features species need. This is particularly important in areas with conservation issues, where habitats and/or trees with the required features may be scarce. However, little information is available on the nest-site selection patterns of woodpeckers breeding in southern temperate forests, where tree logging considerably reduced forest cover and, hence, availability of trees suitable for cavity excavation. In addition, previous studies did not include assessments at different spatial scales nor including quantitative wood density data. Therefore, the main objective of this study is to assess nest-site selection patterns (at the habitat and cavity-tree scales) of the Campo Flicker Colaptes campestris and the Green-barred Woodpecker C. melanochloros breeding in a threatened southern temperate forest of central-east Argentina. Moreover, we report the first wood density data of the trees used by these two woodpeckers when excavating cavities and assess niche partitioning by comparing their cavities and cavity-trees to one another. To assess selection at a habitat scale (recording forest cover and edge of stands and trees), we compared selected breeding habitats to randomly found habitats. At a tree-scale (recording tree height, diameter, wood density and wood decay status), we compared cavity-trees to randomly found trees. Most cavities were excavated in medium (DBH = 20–35 cm) or large (&gt;35 cm) size trees with wood density &lt; 0.5 g/cm3. Generalized linear models indicated that woodpeckers’ propensity to excavate a new cavity was negatively correlated with tree wood density (which was negatively correlated to wood decay status) and positively to tree size. Both woodpecker species focused more importantly on tree features compared to habitat features when excavating cavities. Because forest patches containing mid- and large-sized trees with main stems and/or branches with wood softened by decay processes have become less abundant in these forests due to uncontrolled logging actions, we emphasize the need to conserve trees with these characteristics to ensure the availability of the preferred features of these woodpeckers.Facultad de Ciencias Naturales y Museo2021-09-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/130328enginfo:eu-repo/semantics/altIdentifier/issn/0378-1127info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2021.119723info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2026-06-23T10:55:24Zoai:sedici.unlp.edu.ar:10915/130328Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292026-06-23 10:55:25.131SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
title Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
spellingShingle Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
Jauregui, Adrián
Ciencias Naturales
Campo Flicker
Colaptes campestris
Colaptes melanochloros
Green-barred Woodpecker
Nest-tree
Nest-site selection
title_short Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
title_full Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
title_fullStr Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
title_full_unstemmed Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
title_sort Wood density and tree size used as cues to locate and excavate cavities in two <i>Colaptes</i> woodpeckers inhabiting a threatened southern temperate forest of Argentina
dc.creator.none.fl_str_mv Jauregui, Adrián
Rodríguez, Sabrina Andrea
González García, Lucas Nahuel
González, Exequiel
Segura, Luciano Noel
author Jauregui, Adrián
author_facet Jauregui, Adrián
Rodríguez, Sabrina Andrea
González García, Lucas Nahuel
González, Exequiel
Segura, Luciano Noel
author_role author
author2 Rodríguez, Sabrina Andrea
González García, Lucas Nahuel
González, Exequiel
Segura, Luciano Noel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Campo Flicker
Colaptes campestris
Colaptes melanochloros
Green-barred Woodpecker
Nest-tree
Nest-site selection
topic Ciencias Naturales
Campo Flicker
Colaptes campestris
Colaptes melanochloros
Green-barred Woodpecker
Nest-tree
Nest-site selection
dc.description.none.fl_txt_mv Nest-site selection is crucial for birds’ breeding success and, therefore, studies on this topic are critical in order to understand what features species need. This is particularly important in areas with conservation issues, where habitats and/or trees with the required features may be scarce. However, little information is available on the nest-site selection patterns of woodpeckers breeding in southern temperate forests, where tree logging considerably reduced forest cover and, hence, availability of trees suitable for cavity excavation. In addition, previous studies did not include assessments at different spatial scales nor including quantitative wood density data. Therefore, the main objective of this study is to assess nest-site selection patterns (at the habitat and cavity-tree scales) of the Campo Flicker Colaptes campestris and the Green-barred Woodpecker C. melanochloros breeding in a threatened southern temperate forest of central-east Argentina. Moreover, we report the first wood density data of the trees used by these two woodpeckers when excavating cavities and assess niche partitioning by comparing their cavities and cavity-trees to one another. To assess selection at a habitat scale (recording forest cover and edge of stands and trees), we compared selected breeding habitats to randomly found habitats. At a tree-scale (recording tree height, diameter, wood density and wood decay status), we compared cavity-trees to randomly found trees. Most cavities were excavated in medium (DBH = 20–35 cm) or large (&gt;35 cm) size trees with wood density &lt; 0.5 g/cm3. Generalized linear models indicated that woodpeckers’ propensity to excavate a new cavity was negatively correlated with tree wood density (which was negatively correlated to wood decay status) and positively to tree size. Both woodpecker species focused more importantly on tree features compared to habitat features when excavating cavities. Because forest patches containing mid- and large-sized trees with main stems and/or branches with wood softened by decay processes have become less abundant in these forests due to uncontrolled logging actions, we emphasize the need to conserve trees with these characteristics to ensure the availability of the preferred features of these woodpeckers.
Facultad de Ciencias Naturales y Museo
description Nest-site selection is crucial for birds’ breeding success and, therefore, studies on this topic are critical in order to understand what features species need. This is particularly important in areas with conservation issues, where habitats and/or trees with the required features may be scarce. However, little information is available on the nest-site selection patterns of woodpeckers breeding in southern temperate forests, where tree logging considerably reduced forest cover and, hence, availability of trees suitable for cavity excavation. In addition, previous studies did not include assessments at different spatial scales nor including quantitative wood density data. Therefore, the main objective of this study is to assess nest-site selection patterns (at the habitat and cavity-tree scales) of the Campo Flicker Colaptes campestris and the Green-barred Woodpecker C. melanochloros breeding in a threatened southern temperate forest of central-east Argentina. Moreover, we report the first wood density data of the trees used by these two woodpeckers when excavating cavities and assess niche partitioning by comparing their cavities and cavity-trees to one another. To assess selection at a habitat scale (recording forest cover and edge of stands and trees), we compared selected breeding habitats to randomly found habitats. At a tree-scale (recording tree height, diameter, wood density and wood decay status), we compared cavity-trees to randomly found trees. Most cavities were excavated in medium (DBH = 20–35 cm) or large (&gt;35 cm) size trees with wood density &lt; 0.5 g/cm3. Generalized linear models indicated that woodpeckers’ propensity to excavate a new cavity was negatively correlated with tree wood density (which was negatively correlated to wood decay status) and positively to tree size. Both woodpecker species focused more importantly on tree features compared to habitat features when excavating cavities. Because forest patches containing mid- and large-sized trees with main stems and/or branches with wood softened by decay processes have become less abundant in these forests due to uncontrolled logging actions, we emphasize the need to conserve trees with these characteristics to ensure the availability of the preferred features of these woodpeckers.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-20
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/130328
url http://sedici.unlp.edu.ar/handle/10915/130328
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0378-1127
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2021.119723
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
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