Vascular Flora and Biogeographic Affinity of the Sevier Shale Knobs of Northeastern Tennessee

Levy, Foster

doi:10.2179/0008-7475.86.1.125

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Local floras can serve multiple purposes: they document levels of species diversity (Burgess et al 2011); support ecologic, population genetic, systematic, and taxonomic studies (Palmer et al 1995; Hill 2003); add to biogeographic occurrence databases (Peattie 1946); document novel habitats and plant communities (Radford 1948; Wherry 1963; Allison and Stevens 2001; Levy 2021); identify temporal trends caused by climate change and other human impacts (Walker 2003; Levy and Walker 2014; Bertin and Sprind 2022; Bertin et al 2022); highlight species in need of conservation protection and help guide land and species management (Levy and Walker 2016). When floristic works are backed with herbarium voucher specimens, subsequent research can identify the timing and locations of species and pathogen introductions (Delisle et al 2003; Yoshida et al 2014; Ingram et al 2017; Bradshaw et al 2021; Taylor-Bennetts and Levy 2023).…”

Section: Introductionmentioning

confidence: 99%

The Flora and Wildland–Urban Interface of Doe Mountain Recreation Area: Adjuncts to Conservation

McCullough

Levy

2023

Castanea

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An inventory of the botanical resources of Doe Mountain Recreation Area, comprising 3480 ha on the boundary of the Blue Ridge and Ridge and Valley ecoregions in extreme northeastern Tennessee, was conducted to help guide conservation-based management. A total of 486 species (including subspecies and varieties) was found comprising 95 families, 286 genera, 11 species tracked on the state rare plant list, 153 county records, and 77 exotic species. The relatively high ratio of county records to exotics indicated an area of conservation merit, but the ratio was lower than in floras from comparable areas in eastern Tennessee. The vast majority of county records were of common species, suggestive of an under-collected county. However, some of the noteworthy county records and state-listed species were from unusual habitats such as acid seeps, wetlands, and xeric ridges. Two species, Liatris virgata and Lycopodiella inundata, were new to the state. Water in the seep that supports L. inundata was an order of magnitude more acidic (pH=3.56) than at other sites. An analysis of the wildland–urban interface showed that the periphery of the site had more human impact than the county as a whole with the highest impact on the northern half; only 13% of the area was classified as uninhabited. Management recommendations, some of which were already adopted, targeted protection of acid seeps and xeric roadside slopes, curtailing mowing and herbicide use near a wetland that supports a state endangered species, and reconnaissance for exotic invasions in a biodiverse power line corridor.

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