Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers

Bridging remote-sensing ecosystem indices with biodiversity conservation implies converting these indices into habitat quality indicators for species playing an important role in communities and ecosystems, such as woodpeckers. However, an ecologically reliable estimation of habitat quality necessar...

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Autores principales:	Alberto J. Alaniz, Mario A. Carvajal, Andrés Fierro, Valentina Vergara-Rodríguez, Gisela Toledo, Diego Ansaldo, Darío Moreira-Arce, Alejandro Rojas-Osorio, Pablo M. Vergara
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Magellanic woodpeckers Conservation areas Southern Chile Breeding success Satellite data Plant senescence reflectance index Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/5dcb0775e8ad46808bd85186822f3d54
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spelling	oai:doaj.org-article:5dcb0775e8ad46808bd85186822f3d542021-12-01T04:49:58ZRemote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers1470-160X10.1016/j.ecolind.2021.107634https://doaj.org/article/5dcb0775e8ad46808bd85186822f3d542021-07-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21002995https://doaj.org/toc/1470-160XBridging remote-sensing ecosystem indices with biodiversity conservation implies converting these indices into habitat quality indicators for species playing an important role in communities and ecosystems, such as woodpeckers. However, an ecologically reliable estimation of habitat quality necessarily involves an assessment of fitness components ultimately responsible for population persistence. Here, we assessed the relationship between remote-sensing indices of forest structure, dynamics and composition with the breeding performance of Magellanic woodpeckers in conservation areas of southern Chile. We used a Bayesian-spatial model based on age and sex information from woodpecker’s social group data collected seasonally in seven years. The probability of a young remaining in the group decreased with the mean group size during the previous year, with group size fluctuating temporally in all conservation areas. Tree senescence had a positive effect on the pairing probability of woodpeckers, but this effect became more marked in sites of higher altitude. Paired woodpeckers were more likely to be observed in sites supporting more than 69% of forest cover. The probability of the young remaining in the territory was positively affected by the interaction between forest canopy continuity and altitude, with retention of the young being more likely in sites located higher than 1000 masl. Social groups were larger in sites where the continuity of canopy increased over time. Those findings suggest that remote sensing indices representing the structure and dynamics of forest ecosystems are important indicators of the habitat quality for woodpeckers. Thus, forest biodiversity that depends on the woodpecker's engineering function may be conserved through the retention of senescent trees and the maintaining of critical levels of forest cover ensuring high habitat-quality for breeding woodpeckers.Alberto J. AlanizMario A. CarvajalAndrés FierroValentina Vergara-RodríguezGisela ToledoDiego AnsaldoDarío Moreira-ArceAlejandro Rojas-OsorioPablo M. VergaraElsevierarticleMagellanic woodpeckersConservation areasSouthern ChileBreeding successSatellite dataPlant senescence reflectance indexEcologyQH540-549.5ENEcological Indicators, Vol 126, Iss , Pp 107634- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Magellanic woodpeckers Conservation areas Southern Chile Breeding success Satellite data Plant senescence reflectance index Ecology QH540-549.5
spellingShingle	Magellanic woodpeckers Conservation areas Southern Chile Breeding success Satellite data Plant senescence reflectance index Ecology QH540-549.5 Alberto J. Alaniz Mario A. Carvajal Andrés Fierro Valentina Vergara-Rodríguez Gisela Toledo Diego Ansaldo Darío Moreira-Arce Alejandro Rojas-Osorio Pablo M. Vergara Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers
description	Bridging remote-sensing ecosystem indices with biodiversity conservation implies converting these indices into habitat quality indicators for species playing an important role in communities and ecosystems, such as woodpeckers. However, an ecologically reliable estimation of habitat quality necessarily involves an assessment of fitness components ultimately responsible for population persistence. Here, we assessed the relationship between remote-sensing indices of forest structure, dynamics and composition with the breeding performance of Magellanic woodpeckers in conservation areas of southern Chile. We used a Bayesian-spatial model based on age and sex information from woodpecker’s social group data collected seasonally in seven years. The probability of a young remaining in the group decreased with the mean group size during the previous year, with group size fluctuating temporally in all conservation areas. Tree senescence had a positive effect on the pairing probability of woodpeckers, but this effect became more marked in sites of higher altitude. Paired woodpeckers were more likely to be observed in sites supporting more than 69% of forest cover. The probability of the young remaining in the territory was positively affected by the interaction between forest canopy continuity and altitude, with retention of the young being more likely in sites located higher than 1000 masl. Social groups were larger in sites where the continuity of canopy increased over time. Those findings suggest that remote sensing indices representing the structure and dynamics of forest ecosystems are important indicators of the habitat quality for woodpeckers. Thus, forest biodiversity that depends on the woodpecker's engineering function may be conserved through the retention of senescent trees and the maintaining of critical levels of forest cover ensuring high habitat-quality for breeding woodpeckers.
format	article
author	Alberto J. Alaniz Mario A. Carvajal Andrés Fierro Valentina Vergara-Rodríguez Gisela Toledo Diego Ansaldo Darío Moreira-Arce Alejandro Rojas-Osorio Pablo M. Vergara
author_facet	Alberto J. Alaniz Mario A. Carvajal Andrés Fierro Valentina Vergara-Rodríguez Gisela Toledo Diego Ansaldo Darío Moreira-Arce Alejandro Rojas-Osorio Pablo M. Vergara
author_sort	Alberto J. Alaniz
title	Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers
title_short	Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers
title_full	Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers
title_fullStr	Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers
title_full_unstemmed	Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers
title_sort	remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for magellanic woodpeckers
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5dcb0775e8ad46808bd85186822f3d54
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Remote-sensing estimates of forest structure and dynamics as indicators of habitat quality for Magellanic woodpeckers

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