Impacts of the Hemlock Woolly Adelgid (Adelges tsugae) on Headwater Stream Large Woody Debris Loads in the Southern Appalachian Mountains

Mcdade, Burke; Martin, Derek J.; Gevel, Saskia L. van de; Mitchell, Jennifer

doi:10.1353/sgo.2020.0005

Cited by 4 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We surveyed 1 km (1,000 m) of channel length in Lake Daniel and Latham Park, whereas only 700 m were surveyed in Audubon Preserve because of accessibility issues. Several researchers have reported LW per 100 m (for example, Mcdade, Martin, Van De Gevel, & Mitchell, 2020; Wohl & Scamardo, 2022), hence each of the three reaches was divided into 100‐m sections for sampling purposes, which yielded 27 sections across the three study reaches. We followed the Level 2 LW survey protocol from Schuett‐Hames, Pleus, Ward, Fox, and Light (1999).…”

Section: Methodsmentioning

confidence: 99%

Large wood loads in an urban stream: The role of recruitment limitation versus transport dominance

Sigdel

Praskievicz

Royall

2023

River Research & Apps

View full text Add to dashboard Cite

Large wood (LW) has important physical and ecological functions in streams. Riparian vegetation is extensively removed during urban expansion, and urban streams may experience enhanced fluvial transport of LW due to flashy hydrology. In this study, LW loads were assessed for three reaches on North Buffalo Creek, an urban stream located in Greensboro, North Carolina, United States. These three reaches have similar hydrology but different riparian vegetation densities. We measured the frequencies and sizes of both in-channel LW and riparian vegetation across the three reaches. Our results showed that the recently reforested reach had greater LW volume (22.5 m 3 /km) compared to the unmanaged forested site (16 m 3 /km) and the site with low riparian vegetation density (4.78 m 3 /km). The difference in LW frequency among reaches was statistically significant (p ¼ :05). However, the difference in the volume of individual pieces was not significantly different across reaches (p ¼ :84Þ, indicating that a similar size of wood is recruited across the three sites. Our findings also showed that there is a positive relationship between riparian vegetation frequency and in-channel LW frequency, which are significantly related as a power function. Spatial lag models (integrating upstream riparian trees) did not show better results compared to a non-lagged model, suggesting that storage and recruitment were predominantly local and that the LW distribution at our reaches is limited by recruitment rather than dominated by fluvial transport. Our findings suggested that a fully forested watershed is not needed to provide some of the benefits of wood to urban streams.

show abstract

Section: Methodsmentioning

confidence: 99%