Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon

Black-backed Woodpeckers (Picoides arcticus) are widely considered a burned forest specialist across much of their range. Several recent studies have examined their occurrence in "green" coniferous forests that have not been recently burned, but Black-backed Woodpecker occupancy and factor...

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Autores principales:	Jake Verschuyl, Jaime L. Stephens, Andrew J. Kroll, Katherine E. Halstead, Dennis Rock
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2021
Materias:	black-backed woodpecker fire green forest occupancy oregon cascades <span style="font-style:normal">picoides articus</span> playback calls Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/8ed97cbcf9ca465a8ef7a92c40740b9a
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spelling	oai:doaj.org-article:8ed97cbcf9ca465a8ef7a92c40740b9a2021-11-15T16:40:14ZBlack-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon1712-6568https://doaj.org/article/8ed97cbcf9ca465a8ef7a92c40740b9a2021-06-01T00:00:00Zhttps://www.ace-eco.org/vol16/iss1/art4/https://doaj.org/toc/1712-6568Black-backed Woodpeckers (Picoides arcticus) are widely considered a burned forest specialist across much of their range. Several recent studies have examined their occurrence in "green" coniferous forests that have not been recently burned, but Black-backed Woodpecker occupancy and factors influencing occupancy in these forest types remain largely unexamined. We worked on the east slope of the southern Oregon Cascade Mountains and used playback call surveys with repeated visits to 90 transects in 2014 and 2015 to estimate occupancy probabilities by forest type while controlling for detection probability. We detected Black-backed Woodpeckers on 86% of survey transects in green forests composed primarily of mixed conifer, lodgepole pine (Pinus contorta), or ponderosa pine (P. ponderosa). We examined associations between occupancy probability and structural covariates in unburned forests, and found that occupancy did not vary with annual precipitation, large snag density, or snag basal area. Modeled mean occupancy across all transects was 0.87 (95% CI: 0.78-0.93). Detection probability varied during each survey season, with transect-level detection probability reaching a maximum of 0.79 (95% CI: 0.70-0.85) in mid-June. Given high occupancy of green forests by Black-backed Woodpecker in our study area, we suggest that additional study of vital rates in green forests is critical for supporting conservation and management decisions for this species.Jake VerschuylJaime L. StephensAndrew J. KrollKatherine E. HalsteadDennis RockResilience Alliancearticleblack-backed woodpeckerfiregreen forestoccupancyoregon cascades<span style="font-style:normal">picoides articus</span>playback callsPlant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 16, Iss 1, p 4 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	black-backed woodpecker fire green forest occupancy oregon cascades <span style="font-style:normal">picoides articus</span> playback calls Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	black-backed woodpecker fire green forest occupancy oregon cascades <span style="font-style:normal">picoides articus</span> playback calls Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Jake Verschuyl Jaime L. Stephens Andrew J. Kroll Katherine E. Halstead Dennis Rock Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon
description	Black-backed Woodpeckers (Picoides arcticus) are widely considered a burned forest specialist across much of their range. Several recent studies have examined their occurrence in "green" coniferous forests that have not been recently burned, but Black-backed Woodpecker occupancy and factors influencing occupancy in these forest types remain largely unexamined. We worked on the east slope of the southern Oregon Cascade Mountains and used playback call surveys with repeated visits to 90 transects in 2014 and 2015 to estimate occupancy probabilities by forest type while controlling for detection probability. We detected Black-backed Woodpeckers on 86% of survey transects in green forests composed primarily of mixed conifer, lodgepole pine (Pinus contorta), or ponderosa pine (P. ponderosa). We examined associations between occupancy probability and structural covariates in unburned forests, and found that occupancy did not vary with annual precipitation, large snag density, or snag basal area. Modeled mean occupancy across all transects was 0.87 (95% CI: 0.78-0.93). Detection probability varied during each survey season, with transect-level detection probability reaching a maximum of 0.79 (95% CI: 0.70-0.85) in mid-June. Given high occupancy of green forests by Black-backed Woodpecker in our study area, we suggest that additional study of vital rates in green forests is critical for supporting conservation and management decisions for this species.
format	article
author	Jake Verschuyl Jaime L. Stephens Andrew J. Kroll Katherine E. Halstead Dennis Rock
author_facet	Jake Verschuyl Jaime L. Stephens Andrew J. Kroll Katherine E. Halstead Dennis Rock
author_sort	Jake Verschuyl
title	Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon
title_short	Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon
title_full	Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon
title_fullStr	Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon
title_full_unstemmed	Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon
title_sort	black-backed woodpecker occupancy is extensive in green conifer forests of the southern cascade mountains, oregon
publisher	Resilience Alliance
publishDate	2021
url	https://doaj.org/article/8ed97cbcf9ca465a8ef7a92c40740b9a
work_keys_str_mv	AT jakeverschuyl blackbackedwoodpeckeroccupancyisextensiveingreenconiferforestsofthesoutherncascademountainsoregon AT jaimelstephens blackbackedwoodpeckeroccupancyisextensiveingreenconiferforestsofthesoutherncascademountainsoregon AT andrewjkroll blackbackedwoodpeckeroccupancyisextensiveingreenconiferforestsofthesoutherncascademountainsoregon AT katherineehalstead blackbackedwoodpeckeroccupancyisextensiveingreenconiferforestsofthesoutherncascademountainsoregon AT dennisrock blackbackedwoodpeckeroccupancyisextensiveingreenconiferforestsofthesoutherncascademountainsoregon
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Black-backed Woodpecker occupancy is extensive in green conifer forests of the southern Cascade Mountains, Oregon

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