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Entomology

University of Tennessee, Knoxville

Aquatic

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Nuclear Fingerprinting Identification Of Black Fly Species In The Simulium Jenningsi Species Group (Diptera: Simuliidae), Gail Lynn Senatore May 2012

Nuclear Fingerprinting Identification Of Black Fly Species In The Simulium Jenningsi Species Group (Diptera: Simuliidae), Gail Lynn Senatore

Masters Theses

SourceURL:file://localhost/Users/johnmoulton/Desktop/SenatoreGailMay2012.docA molecular approach was taken to differentiate morphologically homogeneous species within the Simulium jenningsi species group (SJG). This group of Nearctic black flies consisting of 22 recognized species has its highest diversity in the southeastern United States. No other group of black flies in this region is more ubiquitous or pestiferous. Female black flies in this group are nearly isomorphic, which complicates identification, elucidation of host specificity and pest status, and directed control of through application of Bti in the appropriate natal streams. Among SJG species, only S. luggeri Nicholson & Mickel, S. jenningsi Malloch, and S. penobscotense Snoddy & …


Riparian Ecosystem Response To Hemlock Woolly Adelgid (Adelges Tsugae) Induced Eastern Hemlock (Tsuga Canadensis) Mortality In The Great Smoky Mountains National Park, Usa, Misty Dawn Huddleston Dec 2011

Riparian Ecosystem Response To Hemlock Woolly Adelgid (Adelges Tsugae) Induced Eastern Hemlock (Tsuga Canadensis) Mortality In The Great Smoky Mountains National Park, Usa, Misty Dawn Huddleston

Doctoral Dissertations

An invasive insect, hemlock woolly adelgid (HWA), has initiated widespread hemlock decline and mortality in the Great Smoky Mountains National Park (GSMNP). Riparian hemlock mortality impacts on vegetative and aquatic systems of first-order, headwater streams were evaluated. Reference sites for this study were representative of the best available conditions within the GSMNP, with initial stages of HWA presence. Impacted sites were defined as areas with over 90 percent hemlock mortality. Impacted streams had decreased canopy coverage and increased light availability. Residual red maple, yellow birch, and sweet birch capitalized on the loss of hemlock, with increases in relative basal area …