The Influence of Habitat Type and the Presence of an Invasive Wetland Plant (Phalaris arundinacea) on Capture Rates of Sympatric Rare and Common Gartersnake Species (Thamnophis butteri and Thatnnophis strtalis)

Research that investigates the impact of invasive plants on reptiles, particularly snakes, is sparse. Butler's Gartersnake (Thatnnophis butleri) is a rare snake, endemic to the upper midwestern United States. Little research has focused on the habitat selection of this snake, which is often sym...

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Veröffentlicht in:Journal of Herpetology. - Society for the Study of Amphibians and Reptiles, 1968. - 47(2013), 1, Seite 126-130
1. Verfasser: Kapfer, Joshua M. (VerfasserIn)
Weitere Verfasser: Doehler, Kirsten, Hay, Robert
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Journal of Herpetology
Schlagworte:Biological sciences Physical sciences Behavioral sciences Arts
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245 1 4 |a The Influence of Habitat Type and the Presence of an Invasive Wetland Plant (Phalaris arundinacea) on Capture Rates of Sympatric Rare and Common Gartersnake Species (Thamnophis butteri and Thatnnophis strtalis) 
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520 |a Research that investigates the impact of invasive plants on reptiles, particularly snakes, is sparse. Butler's Gartersnake (Thatnnophis butleri) is a rare snake, endemic to the upper midwestern United States. Little research has focused on the habitat selection of this snake, which is often sympatric with the Common Gartersnake (Thatnnophis strtalis). The highly invasive wetland grass Phalaris arundinacea (reed canarygrass [RCG]) has become established or dominant throughout much of the geographic distributions of these snakes. The impacts of this invasive grass on the habitat selection of T. butleri and T. strtalis have not previously been examined. During 2 yr of drift fence surveys at three survey sites and five habitats sampled in southeastern Wisconsin, we captured 243 adult T. butleri and 311 adult T. strtalis. Thamnophis sirtalis was found more often in RCG than T. butleri, which appeared to have more specific habitat needs and most often occurred in upland habitats, particularly grassland, rather than wetlands. These findings have important regulatory and conservation implications for the globally rare T. butleri. For example, our data support the importance of upland habitat protection as part of conservation strategies for T. butleri. In addition, management of wetland habitat for this species must consider the impact of RCG and direct habitat restoration strategies accordingly. 
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