Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers

The post-fledging period remains one of the most understudied portions of the avian lifecycle despite the fact that fledglings require resources distinct from those used during nesting. Post-fledging research can further inform breeding grounds management actions and improve conservation outcomes. W...

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Autores principales:	Cameron J. Fiss, Darin J. McNeil, Amanda D. Rodewald, Daniel Heggenstaller, Jeffery L. Larkin
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2021
Materias:	forest management post-fledging radio-telemetry songbird vermivora chrysoptera Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/6420286a49234910aa027130fb4ba2c6
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spelling	oai:doaj.org-article:6420286a49234910aa027130fb4ba2c62021-11-15T16:40:14ZCross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers1712-6568https://doaj.org/article/6420286a49234910aa027130fb4ba2c62021-06-01T00:00:00Zhttps://www.ace-eco.org/vol16/iss1/art16/https://doaj.org/toc/1712-6568The post-fledging period remains one of the most understudied portions of the avian lifecycle despite the fact that fledglings require resources distinct from those used during nesting. Post-fledging research can further inform breeding grounds management actions and improve conservation outcomes. While the Golden-winged Warbler (Vermivora chrysoptera) is known to make stand-level habitat shifts between nesting and post-fledging, the microhabitat conditions selected by fledglings remains unknown. We used cross-scale habitat selection analyses to evaluate the stand-specific microhabitat conditions required by fledgling Golden-winged Warblers in Pennsylvania. From 2014 through 2017 we radio-tagged and tracked 98 fledglings associated with 80 different sub-broods. We documented habitat use and compared habitat between fledgling and nest sites. Fledglings selected areas with dense overhead and lateral vegetation across stand types. Rubus cover and stem density of >2 m saplings were important in stand initiation and stem-exclusion stage stands, respectively. In mature forest upland and forested wetlands, fledgling Golden-winged Warblers selected for patches with lower basal area relative to what was available. Compared to nest sites fledgling locations contained less herbaceous cover and greater overhead vegetation density apparently provided by taller woody vegetation. Our findings suggest that management actions have high potential for creating post-fledging Golden-winged Warbler habitat, especially if factors such as invasive species and over-browsing are controlled during the regeneration stage of stands. Managers may need to take a proactive approach to create the structure required by fledglings in mature forest stand types where largely intact canopies inhibit understory regeneration. Existing management guidelines for the species should be updated to account for the unique vegetation structure required by fledglings during this stage of the lifecycle.Cameron J. FissDarin J. McNeilAmanda D. RodewaldDaniel HeggenstallerJeffery L. LarkinResilience Alliancearticleforest managementpost-fledgingradio-telemetrysongbirdvermivora chrysopteraPlant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 16, Iss 1, p 16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	forest management post-fledging radio-telemetry songbird vermivora chrysoptera Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	forest management post-fledging radio-telemetry songbird vermivora chrysoptera Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Cameron J. Fiss Darin J. McNeil Amanda D. Rodewald Daniel Heggenstaller Jeffery L. Larkin Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers
description	The post-fledging period remains one of the most understudied portions of the avian lifecycle despite the fact that fledglings require resources distinct from those used during nesting. Post-fledging research can further inform breeding grounds management actions and improve conservation outcomes. While the Golden-winged Warbler (Vermivora chrysoptera) is known to make stand-level habitat shifts between nesting and post-fledging, the microhabitat conditions selected by fledglings remains unknown. We used cross-scale habitat selection analyses to evaluate the stand-specific microhabitat conditions required by fledgling Golden-winged Warblers in Pennsylvania. From 2014 through 2017 we radio-tagged and tracked 98 fledglings associated with 80 different sub-broods. We documented habitat use and compared habitat between fledgling and nest sites. Fledglings selected areas with dense overhead and lateral vegetation across stand types. Rubus cover and stem density of >2 m saplings were important in stand initiation and stem-exclusion stage stands, respectively. In mature forest upland and forested wetlands, fledgling Golden-winged Warblers selected for patches with lower basal area relative to what was available. Compared to nest sites fledgling locations contained less herbaceous cover and greater overhead vegetation density apparently provided by taller woody vegetation. Our findings suggest that management actions have high potential for creating post-fledging Golden-winged Warbler habitat, especially if factors such as invasive species and over-browsing are controlled during the regeneration stage of stands. Managers may need to take a proactive approach to create the structure required by fledglings in mature forest stand types where largely intact canopies inhibit understory regeneration. Existing management guidelines for the species should be updated to account for the unique vegetation structure required by fledglings during this stage of the lifecycle.
format	article
author	Cameron J. Fiss Darin J. McNeil Amanda D. Rodewald Daniel Heggenstaller Jeffery L. Larkin
author_facet	Cameron J. Fiss Darin J. McNeil Amanda D. Rodewald Daniel Heggenstaller Jeffery L. Larkin
author_sort	Cameron J. Fiss
title	Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers
title_short	Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers
title_full	Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers
title_fullStr	Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers
title_full_unstemmed	Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers
title_sort	cross-scale habitat selection reveals within-stand structural requirements for fledgling golden-winged warblers
publisher	Resilience Alliance
publishDate	2021
url	https://doaj.org/article/6420286a49234910aa027130fb4ba2c6
work_keys_str_mv	AT cameronjfiss crossscalehabitatselectionrevealswithinstandstructuralrequirementsforfledglinggoldenwingedwarblers AT darinjmcneil crossscalehabitatselectionrevealswithinstandstructuralrequirementsforfledglinggoldenwingedwarblers AT amandadrodewald crossscalehabitatselectionrevealswithinstandstructuralrequirementsforfledglinggoldenwingedwarblers AT danielheggenstaller crossscalehabitatselectionrevealswithinstandstructuralrequirementsforfledglinggoldenwingedwarblers AT jefferyllarkin crossscalehabitatselectionrevealswithinstandstructuralrequirementsforfledglinggoldenwingedwarblers
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Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers

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