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Common Denominators of Swainson's Warbler Breeding Habitat in Bottomland Hardwood Forest in the White River Watershed in Southeastern Arkansas

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dc.contributor.author Graves, Gary R. en
dc.contributor.author Tedford, Bruce L. en
dc.date.accessioned 2016-09-01T17:50:09Z
dc.date.available 2016-09-01T17:50:09Z
dc.date.issued 2016
dc.identifier.citation Graves, Gary R. and Tedford, Bruce L. 2016. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F29306">Common Denominators of Swainson&#39;s Warbler Breeding Habitat in Bottomland Hardwood Forest in the White River Watershed in Southeastern Arkansas</a>." <em>Southeastern Naturalist</em>. 15 (2):315&ndash;330. <a href="https://doi.org/10.1656/058.015.0213">https://doi.org/10.1656/058.015.0213</a> en
dc.identifier.issn 1528-7092
dc.identifier.uri https://hdl.handle.net/10088/29306
dc.description.abstract The most intensively studied breeding population of Limnothlypis swainsonii (Swainson&#39;s Warbler) is in the White River watershed of southeastern Arkansas. However, because vegetation sampling protocols employed at this site have been significantly different from those used elsewhere, it has been difficult for land managers to reconcile datasets across the species&#39; range in order to construct consensus quantitative benchmarks for optimal breeding habitat in bottomland hardwoods. We used a standardized sampling protocol to compare the physiognomic and floristic characteristics of breeding territories at 2 sites in the White River watershed with comparable data from other populations in Arkansas, Mississippi, Louisiana, Florida, and Virginia. Breeding territories in the combined dataset for this rare migratory species varied substantially in successional stage, floristic diversity, hydrology, and management history. Visual screening provided by understory thickets of saplings, vine tangles, and shrubs emerged as the most important common denominator of breeding territories in bottomland hardwood forests across the warbler&#39;s breeding range. Basal area, abundance of trees in larger-diameter classes, and floristic diversity appear to have little direct influence on habitat selection across the species&#39; range. Although warblers are often associated with Arundinaria spp. (canebrakes), some of the most robust breeding populations occur in cane-free areas. Land managers tasked with generating and sustaining prime breeding habitat should strive for high counts of small woody stems (&gt;45,000/ha or 4.5/m2) in areas that are infrequently subjected to flooding. This benchmark can be achieved through periodic canopy thinning and agroforestry clearcutting. en
dc.relation.ispartof Southeastern Naturalist en
dc.title Common Denominators of Swainson&#39;s Warbler Breeding Habitat in Bottomland Hardwood Forest in the White River Watershed in Southeastern Arkansas en
dc.type Journal Article en
dc.identifier.srbnumber 140089
dc.identifier.doi 10.1656/058.015.0213
rft.jtitle Southeastern Naturalist
rft.volume 15
rft.issue 2
rft.spage 315
rft.epage 330
dc.description.SIUnit NH-Vertebrate Zoology en
dc.description.SIUnit NMNH en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 315
dc.citation.epage 330


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