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Showing 1 to 20 of 91 for “"Southern Appalachians"”.
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Erosional history of the New River, southern Appalachians, Virginia
Much of the bedrock surface of the Southern Appalachian Valley and Ridge Province is covered by a veneer of surficial deposits classified as alluvium, colluvium, and residuum. In this investigation the surficial geology of a 60-km<sup>2</sup> area of the New River drainage system was mapped at a …
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Ruffed grouse nutrition and foraging in the southern Appalachians
Feeding trials.showed that ruffed grouse (Bonasa umbellus) performed well on diets containing 20% Christmas hollyfem (Polystichum acrostichoides) or mountain laurel (Kalmia latifolia), but diets containing 40% of these forages resulted in lower protein and energy intake and the Christmas hollyfem …
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Reclamation of surface-mined forest land in the southern Appalachians
Most of the surface-mined land in the southern Appalachian coal fields of Virginia, southern West Virginia, and eastern Kentucky is forested before mining. For a variety of reasons, most surface-mined land will ultimately return to forest, either by design or through natural succession. The …
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Effects of Alternative Silvicultural Treatments on Regeneration in the Southern Appalachians
Harvesting practices in the southern Appalachians have moved away from clearcutting in favor of variable retention harvesting systems. A study was initiated in 1995-8 to investigate the effects of retaining varying numbers of residual trees on regeneration in seven silvicultural treatments. A …
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Effects of alternative silvicultural practices on oak regeneration in the southern Appalachians
The regeneration in oak-dominated stands following five silvicultural treatments was examined on four sites in the mountains of Virginia and West Virginia. Treatments included: silvicultural clearcut, leave-tree, commercial clearcut, shelterwood, and group selection. The effects of harvesting were …
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The Bays formation (Middle Ordovician) and related rocks of the southern Appalachians
… by important tectonic activity in the southern Appalachian region.
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Ruffed grouse (Bonasa umbellus) habitat ecology in the central and southern Appalachians
Ruffed grouse populations are low in Appalachian forests, possibly because low habitat quality negatively affects survival, condition, and reproduction. Through the Appalachian Cooperative Grouse Research Project (ACGRP) researchers tracked >1500 radioed grouse at 10 study sites (1996__2002). To …
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Distribution and population genetics of Northern saw-whet owls in the Southern Appalachians
… saw-whet owls (Aegolius acadicus) in the Southern Cherokee and Nantahala National Forests. Pennsylvania Toot Route Protocol (Larzone and Mulvihill 2006) was used to survey routes in the spring/summer of 2013 – 14. Nine birds were found, primarily above 1067 m. I studied the population …
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Community ecology of aquatic insects in forested headwater streams in the southern Appalachians
… macroinvertebrates in headwater streams in the southern Appalachians. Distance decay in taxonomic and functional similarity was used to determine the scales at which taxonomic turnover occurred within functional niches. Trait-neutral models of community composition were used as null models to …
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Carbon cycle changes during the end-Marjuman (Cambrian) extinction in the Southern Appalachians
… event within the Nolichucky Formation of the Southern Appalachians making it an excellent candidate for the study of the precise relationship between the extinction and changes in the carbon cycle. This investigation confirms the onset of the SPICE occurs at the extinction boundary however no …
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U-Pb dating of granites from the Charlotte belt of the southern Appalachians
… ages from plutons in the Charlotte belt of the southern Appalachians have provided evidence of Cambro-Ordovician and Siluro-Devonian magmatic activity. Several U-Pb zircon ages of Cambro-Ordovician plutons predate their Rb-Sr whole rock ages by as much as 60 m.y., suggesting a post emplacement …
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Sequence Stratigraphy of Middle-Mississippian Carbonates of the Southern Appalachians: Tuscumbia Limestone, Tuscumbia, AL
… of Middle Mississippian carbonates across the southern United States, tectonic activity to the east of the study area, and global sea level curves, the major controls on the depositional sequences found in this study are global sea-level fluctuations and tectonic uplift and subsidence. Two …
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Case Studies in Value Improvement in Hardwood Timber Harvesting Operations in the southern Appalachians
Three independent case studies focused on harvesting operation value improvement: (1) A productivity study was carried out on a new cable logging operation near Pikeville, Kentucky to document the effect of professional training on production efficiency. The crew received one full week of …
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Vocalizations and morphology of the red crossbill (Loxia curvirostra L.) in the southern Appalachians
… (Loxia curvirostra) bred sympatrically in the southern Appalachians in 1983. The forms differed significantly in vocalizations and bill and body size, and the members of each of 20 male-female pairs were of the same size class. One of the forms from Virginia has been tape recorded in western …
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Ruffed grouse natality, chick survival, and brood micro-habitat selection in the southern Appalachians
… were calculated for 3 regions in the southern Appalachians (Ridge and Valley, Alleghany Plateau, and Ohio River Valley). I report data collected in the first 2 years of a long term (> 6 years) study conducted by the Appalachian Cooperative Grouse Research Project (ACGRP). Nesting rate, …
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Vegetation Responses to Seven Silvicultural Treatments in the Southern Appalachians One-Year After Harvesting
… harvesting were examined on seven sites in the southern Appalachian mountains of Virginia and West Virginia. Treatments included: 1) control, 2) understory control by herbicide, 3) group selection, 4) high-leave shelterwood, 5) low-leave shelterwood, 6) leave tree, and 7) clearcut. The effects …
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The impact of group selection silviculture on timber harvesting cost in the southern Appalachians
National Forest timber management in the southern Appalachians is changing from traditional even-aged management and clearcutting to uneven-aged management and group selection silviculture. Group selection, with its small 1/2-to-2-acre patch cuts widely dispersed throughout a timber stand, has the …
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Paleozoic and Grenvillian structures in the southern Appalachians: extended interpretation from seismic reflection data
… Paleozoic and Grenvillian structures in the southern Appalachians. The seismic data include ADCOII, Seisdata, and COCORP reflection profiles which traverse the Blue Ridge and Inner Piedmont geologic provinces of South Carolina, North Carolina, and Georgia. Based on the reprocessed data, all …
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Taxonomy, genesis, and parent material distribution of high- elevation forest soils in the southern Appalachians
High-elevation spruce-fir forests in the southern Appalachians may potentially be in a state of decline as a result of either natural or anthropogenic causes. Soils were investigated in areas representative of 117 permanent intensive field plots established to evaluate changes in forest composition …
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Gravity profile evaluation of geological cross-sections through the Southern Appalachians in Frederick County, Virginia
The geology of Frederick County, Virginia is known mostly from surface mapping. Based on this work are interpretations of the subsurface geology including cross sections which have been constrained by the surface geology and by the method of area balancing based upon palinspastic reconstruction. …
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