Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range
Abstract. After nearly a century of height suppression, willows (Salix spp.) in the northern range of Yellowstone National Park, USA, are increasing in height growth as a possible consequence of wolf (Canis lupus) restoration, climate change, or other factors. Regardless of the drivers, the recent r...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1039.7990 2023-05-15T15:51:01+02:00 Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range Lisa M Baril Andrew J Hansen Roy Renkin Rick Lawrence The Pennsylvania State University CiteSeerX Archives 2011 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1039.7990 http://www.montana.edu/hansenlab/documents/downloadables/Bariletal2011EApp.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1039.7990 http://www.montana.edu/hansenlab/documents/downloadables/Bariletal2011EApp.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.montana.edu/hansenlab/documents/downloadables/Bariletal2011EApp.pdf text 2011 ftciteseerx 2020-03-08T01:21:17Z Abstract. After nearly a century of height suppression, willows (Salix spp.) in the northern range of Yellowstone National Park, USA, are increasing in height growth as a possible consequence of wolf (Canis lupus) restoration, climate change, or other factors. Regardless of the drivers, the recent release of this rare but important habitat type could have significant implications for associated songbirds that are exhibiting declines in the region. Our objective was to evaluate bird response to releasing willows by comparing willow structure and bird community composition across three willow growth conditions: height suppressed, recently released, and previously tall (i.e., tall prior to the height increase of released willows). Released and previously tall willows exhibited high and similar vertical structure, but released willows were significantly lower in horizontal structure. Suppressed willows were significantly shorter and lower in horizontal cover than released or previously tall willows. Bird richness increased along a gradient from lowest in suppressed to highest in previously tall willows, but abundance and diversity were similar between released and previously tall willows, despite lower horizontal cover in the released condition. Common Yellowthroat (Geothlypis trichas) and Lincoln's Sparrow (Melospiza lincolnii ) were found in all three growth conditions; however, Yellow Warbler (Dendroica petechia), Warbling Vireo (Vireo gilvus), Willow Flycatcher (Empidonax traillii ), and Song Sparrow (Melospiza melodii ) were present in released and previously tall willows only. Wilson's Warbler (Wilsonia pusilla) was found in previously tall willows only, appearing to specialize on tall, dense willows. The results of our a priori habitat models indicated that foliage height diversity was the primary driver of bird richness, abundance, and diversity. These results indicate that vertical structure was a more important driver of bird community variables than horizontal structure and that riparian and ... Text Canis lupus Unknown |
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Abstract. After nearly a century of height suppression, willows (Salix spp.) in the northern range of Yellowstone National Park, USA, are increasing in height growth as a possible consequence of wolf (Canis lupus) restoration, climate change, or other factors. Regardless of the drivers, the recent release of this rare but important habitat type could have significant implications for associated songbirds that are exhibiting declines in the region. Our objective was to evaluate bird response to releasing willows by comparing willow structure and bird community composition across three willow growth conditions: height suppressed, recently released, and previously tall (i.e., tall prior to the height increase of released willows). Released and previously tall willows exhibited high and similar vertical structure, but released willows were significantly lower in horizontal structure. Suppressed willows were significantly shorter and lower in horizontal cover than released or previously tall willows. Bird richness increased along a gradient from lowest in suppressed to highest in previously tall willows, but abundance and diversity were similar between released and previously tall willows, despite lower horizontal cover in the released condition. Common Yellowthroat (Geothlypis trichas) and Lincoln's Sparrow (Melospiza lincolnii ) were found in all three growth conditions; however, Yellow Warbler (Dendroica petechia), Warbling Vireo (Vireo gilvus), Willow Flycatcher (Empidonax traillii ), and Song Sparrow (Melospiza melodii ) were present in released and previously tall willows only. Wilson's Warbler (Wilsonia pusilla) was found in previously tall willows only, appearing to specialize on tall, dense willows. The results of our a priori habitat models indicated that foliage height diversity was the primary driver of bird richness, abundance, and diversity. These results indicate that vertical structure was a more important driver of bird community variables than horizontal structure and that riparian and ... |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Lisa M Baril Andrew J Hansen Roy Renkin Rick Lawrence |
spellingShingle |
Lisa M Baril Andrew J Hansen Roy Renkin Rick Lawrence Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range |
author_facet |
Lisa M Baril Andrew J Hansen Roy Renkin Rick Lawrence |
author_sort |
Lisa M Baril |
title |
Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range |
title_short |
Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range |
title_full |
Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range |
title_fullStr |
Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range |
title_full_unstemmed |
Songbird response to increased willow (Salix spp.) growth in Yellowstone's northern range |
title_sort |
songbird response to increased willow (salix spp.) growth in yellowstone's northern range |
publishDate |
2011 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1039.7990 http://www.montana.edu/hansenlab/documents/downloadables/Bariletal2011EApp.pdf |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
http://www.montana.edu/hansenlab/documents/downloadables/Bariletal2011EApp.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1039.7990 http://www.montana.edu/hansenlab/documents/downloadables/Bariletal2011EApp.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766386076986900480 |