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Articles 91 - 102 of 102
Full-Text Articles in Entire DC Network
Microbial Ecology Of Freshly Sawn Yellow-Poplar Lumber ( Liriodendron Tulipifera L.) In Two Seasons, Mark Ryan Mikluscak
Microbial Ecology Of Freshly Sawn Yellow-Poplar Lumber ( Liriodendron Tulipifera L.) In Two Seasons, Mark Ryan Mikluscak
Graduate Theses, Dissertations, and Problem Reports (ETD)
Each year, the forest products industry sustains considerable product loss due to a reduction in market value of lumber brought about by microbial discoloration. The current practice of treating green lumber with chemical biocides to protect it from discoloration, although successful, is a potential hazard to both the environment and human life. One potential alternative to chemical biocides is biological control. The most recent success in the field of biological control has been achieved in the agricultural industry by first studying the microbial ecology of the substrate in which the biologically based preservative is to be used. Literature on microbial …
Comparison Of Herpetofaunal Species Composition And Response To Edge On The Camp Dawson Collective Training Area, Preston County, West Virginia, Amy B. Spurgeon
Comparison Of Herpetofaunal Species Composition And Response To Edge On The Camp Dawson Collective Training Area, Preston County, West Virginia, Amy B. Spurgeon
Graduate Theses, Dissertations, and Problem Reports (ETD)
Herpetofaunal species composition, abundance, and diversity were evaluated on the Camp Dawson Collective Training Area, Preston County, West Virginia, as a requirement of the Sikes Act (16 USC 670a et seq.), Army Regulation 200-3, and Department of Defense Instruction 4715.3. Herpetofauna were sampled using pitfall traps with drift fences and double-ended funnel traps, and also from area searches. Redback salamander (Plethodon cinereus), red-spotted newt (Notophthalmus v. viridescens ), eastern American toad (Bufo a. americanus), and wood frog (Rana sylvatica) were most common in pitfall arrays; mountain dusky salamander (Desmognathus ochrophaeus), Appalachian seal salamander (Desmognathus m. monticola), and redback salamander were …
Factors Influencing Habitat Selection And Activity Of Ground Beetles (Coleoptera: Carabidae) In Central Appalachia. Part I. The Influence Of Soil And Soil Surface Characteristics On Habitat Selection By Carabidae. Part Ii. Precipitation And Temperature Fluctuations: Effects On Carabidae Activity. Part Iii. The Effects Of Two Microbial Insecticides For Gypsy Moth Control On Carabidae Populations., Terry R. Carrington
Graduate Theses, Dissertations, and Problem Reports (ETD)
A study was conducted in the George Washington National Forest in Virginia and the Monongahela National Forest in West Virginia. Carabid samples were collected over four years and compared to soil characteristics, surface characteristics and meteorological conditions to determine what role these factors play in carabid habitat selection. Opportunity also existed to compare carabid populations before and after the application of microbial insecticides on the sampling sites. This study was conducted as as part of a larger project investigating non-target impacts from gypsy moth, Lymantria dispar (L.)(Lepidoptera: Lymantriidae), insecticide applications and the interaction of Entomophaga maimaiga Humber, Shimazu, and Soper …
Testing The River Continuum Concept: Exploring Ecological Processes In The Wheeling Creek Watershed., Deborah Ann Carpenter
Testing The River Continuum Concept: Exploring Ecological Processes In The Wheeling Creek Watershed., Deborah Ann Carpenter
Graduate Theses, Dissertations, and Problem Reports (ETD)
The river continuum concept (RCC) asserts that the biological community in a stream system is largely regulated by geomorphological factors (Vannote, et al., 1980, 131). The concept states that community structure in natural stream systems is structured in order to capitalize on the most efficient energy utilization throughout. The objective of this research is to test the RCC in the Wheeling Creek watershed of northern West Virginia and southwestern Pennsylvania and to compare the results with those hypothesized under the RCC. One of the strongest criticisms of the RCC is that the continuum assumes an undisturbed stream system. Anomalies found …
Scale, Ecological Fallacy, And The River Continuum Concept, Hope M. Childers
Scale, Ecological Fallacy, And The River Continuum Concept, Hope M. Childers
Graduate Theses, Dissertations, and Problem Reports (ETD)
Concern over scale is not new, and it is not restricted to geographers. Spatial and temporal scaling is a conceptual and methodological problem for all sciences using geographic information. This paper teases out issues of scale and ecological fallacy from the literature and discusses how these issues influence the applicability of an influential theoretical framework in stream ecology, the River Continuum Concept (RCC). Investigators are faced with decisions regarding scale during sampling location selection, field data capture, and subsequent data interpretation. A thorough understanding of the heterogeneity of stream habitats and the life histories of the organisms being studied could …
Food Habits Of The Allegheny Woodrat (Neotoma Magister ), Nikole Lee Castleberry
Food Habits Of The Allegheny Woodrat (Neotoma Magister ), Nikole Lee Castleberry
Graduate Theses, Dissertations, and Problem Reports (ETD)
Regional declines in Allegheny woodrat (Neotoma 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 microhistological techniques. In the Allegheny Plateau, the top 5 food items were fungi, blueberries ( Vaccinium spp.), acorns (Quercus spp.), ferns ( Dryopteris spp.), and lichens. In the Ridge and Valley woodrats ate primarily blackberry (Rubus spp.) leaves, fungi, greenbrier (Smilax spp.) leaves, acorns, and oak leaves. Additionally, we examined the …
'Regional' Political Ecology And Underdevelopment In Appalachia: Case Studies From Two West Virginia Counties., James Todd Nesbitt
'Regional' Political Ecology And Underdevelopment In Appalachia: Case Studies From Two West Virginia Counties., James Todd Nesbitt
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation analyzes the environmental history of Pendleton and Randolph Counties, West Virginia, as it relates to underdevelopment within the broader Appalachian region. Theories of political ecology and reconstructed regional geography are used to gain a better understanding of the intersection between cultural practice and human use of the natural environment. Specifically, three case study locales are utilized in this study to demonstrate local variability in natural resource issues within the Appalachian region. Political ecology and reconstructed regional geography are integrated to create a conceptually and contextually refined 'regional' political ecology which accounts for issues of geographic scale and alternative …
The Relationships Between Critical Thinking Skills And Dispositions Of Generic Nursing Students And Registered Nurses Enrolled In A Bachelor Of Science In Nursing Program., Michelle Dellaria Doas
The Relationships Between Critical Thinking Skills And Dispositions Of Generic Nursing Students And Registered Nurses Enrolled In A Bachelor Of Science In Nursing Program., Michelle Dellaria Doas
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine if there were any significant correlations among freshman generic, senior generic, RN-BSN first year, and RN-BSN senior year nursing students in levels of critical thinking skills and critical thinking dispositions. This study examined the relationships between a variety of demographic variables and critical thinking skills and critical thinking dispositions. The demographic variables included: age, gender, marital status, years of professional nursing experience, membership in professional/student organizations, number of formal critical thinking courses taken, and other earned degrees. Two instruments were used in this study. They induced the California Critical Thinking Skills Test …
Use And Misuse Of Mixed Model Analysis Of Variance In Ecological Studies, Cynthia C. Bennington, William V. Thayne
Use And Misuse Of Mixed Model Analysis Of Variance In Ecological Studies, Cynthia C. Bennington, William V. Thayne
Faculty & Staff Scholarship
Analysis of variance is one of the most commonly used statistical techniques among ecologists and evolutionary biologists. Because many ecological experiments involve random as well as fixed effects, the most appropriate analysis of variance model to use is often the mixed model. Consideration of effects in an analysis of variance as fixed or random is critical if correct tests are to be made and if correct inferences are to be drawn from these tests. A literature review was conducted to determine whether authors are generally aware of the differences between fixed and random effects and whether they are performing analyses …
The Vegetation Of Canaan Valley, West Virginia: A Taxonomic And Ecological Study., Ronald Howard Fortney
The Vegetation Of Canaan Valley, West Virginia: A Taxonomic And Ecological Study., Ronald Howard Fortney
Graduate Theses, Dissertations, and Problem Reports (ETD)
Canaan Valley Is an upland valley located in the Allegheny Mountains of W est Virginia. H isto rically , it had probably the finest Picea rubens Sarg. forest in North America. Its most distinguishing features are: (1) its large o v al-sh ap e, 14 miles long and from two to four miles wide; (2) the presence of a relict Pleistocene flora and boreal communities; and (3) a wetland area of approximately 6,000 acres at a mean elevation of 3,200 feet. The vegetation of Canaan Valley was studied in respect to its flo ristic composition and its ecological im plications. …
A Taxonomic Study Of The Ericaceae Of The Southern Appalachian Highlands., Doyle Stewart Blauch
A Taxonomic Study Of The Ericaceae Of The Southern Appalachian Highlands., Doyle Stewart Blauch
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Southern Appalachian Highlands represent a unique geographical region in which to study plants. The Ericaceae, especially well developed in this region, are a family of plants which have long been of interest to man. At the present time there exists no adequate treatment of the Ericaceae of this particular area. The present study, based mainly upon examination of herbarium specimens and supplemented by studies in the field, attempts to correlate these findings with all the scattered published information concerning the genera of this family in the Southern Appalachians. More than 12,000 sheets of specimens from twenty-nine herbaria were examined …
Black Cherry : Its Abundance, Quality, And Rate Of Growth In Oak-Hickory And Cove Forests Of West Virginia, Kenneth L. Carvell, C. B. Knoch
Black Cherry : Its Abundance, Quality, And Rate Of Growth In Oak-Hickory And Cove Forests Of West Virginia, Kenneth L. Carvell, C. B. Knoch
West Virginia Agricultural and Forestry Experiment Station Bulletins
No abstract provided.