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Showing 1 to 20 of 64 for “"ridge and valley"”.
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Select geomorphological components of wildlife habitat in the ridge and valley province of Virginia
… examined geomorphology as it relates to wildlife and wildlife habitat I sought to make dimensions of land surface shape (terrain) available for use by natural resource professionals. Most geomorphic processes operate on longer time scales than the life spans of organisms that inhabit a landscape. …
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Phosphate Reactivity in Long-Term Manure Amended Soils in the Ridge and Valley of Virginia
Phosphorus (P) released in overland flow is related to P form, soil solution P concentration and the release rate of P from soil. Models relating soil test P (STP) to water soluble P (WSP) and the degree of P saturation (DPS) to STP are used in Virginia to estimate P loss potential. Typically the …
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Oak regeneration after clearcutting on steep slopes in the ridge and valley province of southwest Virginia
… development of oak stems of advance regeneration and stump sprout origin was studied during a two-year period following clearcutting and whole-tree removal in eight midslope stands in the Ridge and Valley Province of southwestern Virginia. Oak regeneration was also characterized in several older …
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Evaluation of sampling methodologies for assessing fish species richness in ridge and valley streams in Chattanooga, Tennessee
… for estimating species richness in small Ridge and Valley streams. My study objectives were to determine the effects of the sampling season, reach length, habitat sequences surveyed, and sampling intensity on estimates of fish species richness. Fish assemblages were sampled at 18 sites …
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Effects of watershed land use on the benthic macroinvertebrate assemblages in ridge and valley streams in Chattanooga, Tennessee
A total of 20 sites in five Ridge and Valley streams located in Chattanooga, Tennessee were sampled May 8, 1998 to June 18, 1998 using quantitative and qualitative macroinvertebrate sampling techniques. All streams sampled were part of the Tennessee River drainage system and eventually contribute …
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Effects of land use on biotic integrity in ridge and valley streams in the Chattanooga Metropolitan Area, Tennessee-Georgia
… the Urban Streams Project. All sites are in the Ridge and Valley ecoregion and are part of the Nickajack Reservoir watershed in the Tennessee River system. Study sites were characterized in terms of water quality, habitat, and fish assemblages. Relationships among these features and land use, at …
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Soil Erosion and Modeling Following Closure Best Management Practices for Bladed Skid Trails in the Ridge and Valley Region
… associated with forest operations. Roads and skid trail surfaces have erosion rates that are greater than the harvest area. Forestry best management practices (BMPs) have been developed to minimize erosion on skid trails, but few projects have compared the effectiveness of different BMPs …
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Measures of stand structure and its relationship to site in the south-central Ridge and Valley Province of Virginia
… County, Virginia to assess vegetation structure and its relationship to differences in site. A number of structural parameters were measured by height strata to determine vertical stratification patterns. Foliage density was used in subordinate strata (< 5.0 m) as a comparative measure of …
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Influences of watershed urban development on habitat heterogeneity and native fish diversity in a ridge and valley stream in Southeastern Tennessee
The present study examined relationships of landscape features with instream environmental conditions and fish assemblage attributes in a third-order Ridge and Valley stream in the Chattanooga, Tennessee area. Stream water quality, habitat, and fish assemblages were sampled in May-June 2005 at …
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The effects of forest thinning on the food-based carrying capacity of a mixed oak forest for white-tailed deer in the ridge and valley province of Virginia
The ability of a mixed oak forest in the Ridge and Valley Province of Virginia to provide the seasonal digestible protein and energy requirements of a white-tailed doe following a commercial thinning operation was evaluated. The element of time elapsed since thinning was emphasized and was …
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Comparison Watershed Selection When Applying the AllForX Approach for Sediment TMDL Development
… All-Forested Load Multiplier (AllForX) Approach, and examined a quantitative watershed characteristic as a selection criterion. The AllForX Approach uses a regression relationship between Virginia Stream Condition Index (VSCI) scores and AllForX values (a unit-less multiplier that is the ratio of …
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Food habits of the Allegheny woodrat (Neotoma magister )
… magister ) populations suggest a better understanding of the ecology of this species is needed for proper management. I described seasonal food habits of the Allegheny woodrat in the Ridge and Valley and Allegheny Plateau physiographic provinces of West Virginia and Virginia using …
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Evaluation of Nutrient and Pathogen Losses From Various Poultry Litter Storage Methods
… covered stockpiles, uncovered stockpiles, and litter sheds. The stockpiles were monitored over two rainfall simulation events, in both the Ridge and Valley and the Piedmont physiographic provinces, with both surface and subsurface flows analyzed. An observational study, where subsurface …
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Performance of northern red oak (Quercus rubra) underplantings under five management regimes and across existing environmental gradients
… eastern broadleaf forests of the United States and are of great ecological, economical, and cultural value. Despite their prevalence in the overstory, many sites are lacking in the advanced reproduction necessary for its regeneration in future stands. This dilemma has merited much research, but …
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Effect of riparian land use on the biotic integrity of fish assemblages in Black Creek, Chattanooga, Tennessee
Black Creek is a third-order Ridge and Valley stream (Tennessee River drainage) in Chattanooga, Tennessee. Most ofBlack Creek's watershed is forested (ca. 71% in 1991 ). However, increasing urban development, particularly along the riparian landscapes, could impact the stream's ecological health. I …
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Assessing Subterranean Arthropod Diversity through COI Barcoding in Two Ecoregions of Southwestern Virginia, USA
… contributing numerous ecosystem services and essential food-web functions. Despite this, fundamental information about species diversity in these communities remains unknown, and their taxonomic composition and ecological diversity have scarcely been assessed. Subterranean pitfall traps …
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Phosphorus Losses in Runoff from Virginia Soils
… However, the relationship between STP and runoff DRP will vary based on soil type due to differences in soil properties. The purposes of the first two studies were to (i) investigate the effect of soil mineralogy on P sorption behavior and dissolved P in runoff and (ii) determine if any …
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Variation in the structure, composition, and dynamics of a foundation tree species at multiple scales and gradients
Scientists and land managers often focus on the Southeastern Plains and Coastal Plain of the southeastern United States when considering the ecology, restoration, and management of longleaf pine (Pinus palustris P. Mill.) communities and ecosystems. However, the range of this foundation tree …
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Analyzing anuran diversity in urban and rural wetlands using frog call citizen science data
… extinction rates because of habitat destruction, and climate change. Citizen science, the incorporation of citizens in data collection or management of scientific research, has become necessary to monitor populations widely. The Tennessee Amphibian Monitoring Program is a citizen science program, …
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Survey and Comparison of Amphibian Assemblages in Two Physiographic Regions of Northeast Tennessee.
… populations have prompted study of their ecology and distribution. The purpose of this study was to survey two sites located within different physiographic and one herpetofaunal region of Northeast Tennessee, comparing species composition and activity. The first, Henderson Wetland, is in the …
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