Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy

Abstract Veteran hollow oaks (Quercus spp.) are keystone structures hosting high insect diversity but are declining in numbers due to intensification of land use and the abandonment of traditional management. The loss of this vital habitat is resulting in a reduction of biodiversity, and this likely...

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Autores principales:	Ross Wetherbee, Tone Birkemoe, Olav Skarpaas, Anne Sverdrup‐Thygeson
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2020
Materias:	biodiversity and ecosystem functioning coleoptera functional diversity invertebrate conservation Quercus spp. saproxylic beetles Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/83c27204f8c0431597d00b421ba0f735
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spelling	oai:doaj.org-article:83c27204f8c0431597d00b421ba0f7352021-11-04T13:06:09ZHollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy2045-775810.1002/ece3.5940https://doaj.org/article/83c27204f8c0431597d00b421ba0f7352020-01-01T00:00:00Zhttps://doi.org/10.1002/ece3.5940https://doaj.org/toc/2045-7758Abstract Veteran hollow oaks (Quercus spp.) are keystone structures hosting high insect diversity but are declining in numbers due to intensification of land use and the abandonment of traditional management. The loss of this vital habitat is resulting in a reduction of biodiversity, and this likely has consequences for ecosystem functioning, especially if functional diversity is reduced. A considerable amount of research has been done on predictors of beetle taxonomic diversity in veteran oaks, but predictors of functional diversity have remained largely unexplored. The aim of this study was to establish whether the features and surroundings of veteran oaks are related to functional diversity within three functional groups of beetles (decomposers, predators, and flower visitors) and determine whether species richness and functional diversity within the groups are dependent on the same predictors. Sampling was carried out intermittently between 2004 and 2011 on 61 veteran oaks in Southern Norway. Of the 876 beetle species that were collected, 359 were determined to be decomposers, 284 were predators, and 85 were flower visitors. Species richness and functional diversity in all groups were consistently higher in traps mounted on veteran oaks in forests than in open landscapes. However, additional predictors differed between groups, and for species richness and functional diversity. Decomposer species richness responded to tree vitality, while functional diversity responded to habitat connectivity, predator species richness responded to regrowth of shrubs while functional diversity responded to tree circumference, and flower visitor richness and functional diversity did not respond to any additional predictors. Previous studies have found that the features and surroundings of veteran oaks are important for conservation of taxonomic diversity, and the results from this study indicate that they are also important for functional diversity within multiple functional groups.Ross WetherbeeTone BirkemoeOlav SkarpaasAnne Sverdrup‐ThygesonWileyarticlebiodiversity and ecosystem functioningcoleopterafunctional diversityinvertebrate conservationQuercus spp.saproxylic beetlesEcologyQH540-549.5ENEcology and Evolution, Vol 10, Iss 2, Pp 819-831 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	biodiversity and ecosystem functioning coleoptera functional diversity invertebrate conservation Quercus spp. saproxylic beetles Ecology QH540-549.5
spellingShingle	biodiversity and ecosystem functioning coleoptera functional diversity invertebrate conservation Quercus spp. saproxylic beetles Ecology QH540-549.5 Ross Wetherbee Tone Birkemoe Olav Skarpaas Anne Sverdrup‐Thygeson Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy
description	Abstract Veteran hollow oaks (Quercus spp.) are keystone structures hosting high insect diversity but are declining in numbers due to intensification of land use and the abandonment of traditional management. The loss of this vital habitat is resulting in a reduction of biodiversity, and this likely has consequences for ecosystem functioning, especially if functional diversity is reduced. A considerable amount of research has been done on predictors of beetle taxonomic diversity in veteran oaks, but predictors of functional diversity have remained largely unexplored. The aim of this study was to establish whether the features and surroundings of veteran oaks are related to functional diversity within three functional groups of beetles (decomposers, predators, and flower visitors) and determine whether species richness and functional diversity within the groups are dependent on the same predictors. Sampling was carried out intermittently between 2004 and 2011 on 61 veteran oaks in Southern Norway. Of the 876 beetle species that were collected, 359 were determined to be decomposers, 284 were predators, and 85 were flower visitors. Species richness and functional diversity in all groups were consistently higher in traps mounted on veteran oaks in forests than in open landscapes. However, additional predictors differed between groups, and for species richness and functional diversity. Decomposer species richness responded to tree vitality, while functional diversity responded to habitat connectivity, predator species richness responded to regrowth of shrubs while functional diversity responded to tree circumference, and flower visitor richness and functional diversity did not respond to any additional predictors. Previous studies have found that the features and surroundings of veteran oaks are important for conservation of taxonomic diversity, and the results from this study indicate that they are also important for functional diversity within multiple functional groups.
format	article
author	Ross Wetherbee Tone Birkemoe Olav Skarpaas Anne Sverdrup‐Thygeson
author_facet	Ross Wetherbee Tone Birkemoe Olav Skarpaas Anne Sverdrup‐Thygeson
author_sort	Ross Wetherbee
title	Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy
title_short	Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy
title_full	Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy
title_fullStr	Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy
title_full_unstemmed	Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy
title_sort	hollow oaks and beetle functional diversity: significance of surroundings extends beyond taxonomy
publisher	Wiley
publishDate	2020
url	https://doaj.org/article/83c27204f8c0431597d00b421ba0f735
work_keys_str_mv	AT rosswetherbee hollowoaksandbeetlefunctionaldiversitysignificanceofsurroundingsextendsbeyondtaxonomy AT tonebirkemoe hollowoaksandbeetlefunctionaldiversitysignificanceofsurroundingsextendsbeyondtaxonomy AT olavskarpaas hollowoaksandbeetlefunctionaldiversitysignificanceofsurroundingsextendsbeyondtaxonomy AT annesverdrupthygeson hollowoaksandbeetlefunctionaldiversitysignificanceofsurroundingsextendsbeyondtaxonomy
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Hollow oaks and beetle functional diversity: Significance of surroundings extends beyond taxonomy

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