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2023

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Articles 331 - 360 of 385

Full-Text Articles in Forest Sciences

The Long-Term Effects Of Wildfire Severity On Oak-Pine Communities And Their Microclimates, Scott Glenn Culbert Jan 2023

The Long-Term Effects Of Wildfire Severity On Oak-Pine Communities And Their Microclimates, Scott Glenn Culbert

Theses and Dissertations--Forestry and Natural Resources

In the eastern U.S., fire-dependent tree species have historically dominated upland forest communities, but are now experiencing widespread regeneration challenges as a result of 20th century fire suppression policies, and are being replaced by mesophytic species. Wildfires that contain areas of high burn severity may provide an important means of mitigating these challenges and facilitating fire-dependent species regeneration and recruitment into larger size classes. One mechanism by which high-severity fire can accomplish this is by modifying understory microclimate characteristics to be more conducive to these species’ growth. A wildfire within the Daniel Boone National Forest, Kentucky, USA, provided the …

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Economics Of Maple Syrup Production In Kentucky, Bobby Thapa Jan 2023

Economics Of Maple Syrup Production In Kentucky, Bobby Thapa

Theses and Dissertations--Forestry and Natural Resources

Maple syrup production is traditionally associated with New England regions in the United States, but there is growing interest in expanding it to other regions with suitable environmental conditions, including Kentucky. This study presents an in-depth analysis of the potential production and economic impacts of maple syrup in Kentucky using a multi-method approach. First, the study applies a stochastic production model to assess the effects of climatic and tree variables on maple syrup yield. The results reveal that several variables, including the number of maple trees, taps, temperatures, tapping season length, and time, significantly affect maple syrup yield. Second, input-output …

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Effects Of Forest Reclamation And Landscape Features On Avian Occupancy, Species Richness, And Abundance In Appalachia, Rebecca N. Davenport Jan 2023

Effects Of Forest Reclamation And Landscape Features On Avian Occupancy, Species Richness, And Abundance In Appalachia, Rebecca N. Davenport

Theses and Dissertations--Forestry and Natural Resources

The Forestry Reclamation Approach (FRA) is a recently developed coal mining reclamation method that emphasizes best management practices in forestry, such as the planting of native trees and shrubs. Although the FRA is expected to benefit wildlife, no studies have empirically examined the effects of the FRA on avian species. My study aimed to identify which reclamation approaches and/or landscape features promote breeding songbirds, particularly mature forest avian guilds and species of conservation need. I conducted point count surveys in the Appalachian Mountains of eastern West Virginia and assessed differences in avian occupancy, species richness, and species abundance between four …

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The Effect Of Land-Cover/Land-Use And Habitat Fragmentation On Spatial Patterns Of Lyme Disease In The Eastern United States, Maria Elizabeth Topmiller Jan 2023

The Effect Of Land-Cover/Land-Use And Habitat Fragmentation On Spatial Patterns Of Lyme Disease In The Eastern United States, Maria Elizabeth Topmiller

Theses and Dissertations--Forestry and Natural Resources

Lyme disease has been of national concern for the past few decades. As our understanding of the role of landscape structure in epidemiology expands, it is essential to apply the principles of landscape ecology to the research of vector-borne and zoonotic disease. This study examined the strength of the relationship between land-cover class, degree of habitat fragmentation and county-level Lyme disease cases. Forest, agricultural, and urban land cover types were the categories of interest, while percent cover, edge density, and patch density were the landscape metric used to measure habitat amount and fragmentation. The general linear trends were modelled with …

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Pond-Breeding Amphibian Responses To Wetland Creation And Reforestation On A Legacy Surface Mine In The Monongahela National Forest, Lauren Breanna Sherman Jan 2023

Pond-Breeding Amphibian Responses To Wetland Creation And Reforestation On A Legacy Surface Mine In The Monongahela National Forest, Lauren Breanna Sherman

Theses and Dissertations--Forestry and Natural Resources

Surface mine reclamation has been an evolving practice since the Surface Mining Control and Reclamation Act was passed in 1977, holding mining companies accountable for returning ecological function to areas directly impacted by mining activities. One recent method of reclamation, the Forestry Reclamation Approach (FRA), aims to enhance reforestation and ecosystem function through the creation of wetlands, as opposed to traditional methods that often revert land to grasslands. However, wildlife response to FRA has rarely been investigated. The goal of this project was to analyze the effects of the four treatment types, FRA in two chronosequences, natural regeneration, and unmined …

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Fine Characterization Of Leafing Phenology In The Brazilian Atlantic Forest By Optical And Microwave Remote Sensing, James B. Bell Jan 2023

Fine Characterization Of Leafing Phenology In The Brazilian Atlantic Forest By Optical And Microwave Remote Sensing, James B. Bell

Dissertations and Theses

Tropical forests provide important ecosystem functions in the global biosphere, but they remain among the most poorly understood elements of land surface models, especially with regard to their seasonal dynamics. For instance, in seasonally dry forests, the pattern of the annual green-up in their canopies closely follows annual patterns of rainfall. The same, however, does not occur in wet forest canopies which are dominated by evergreen trees. In the latter, water is not scarce enough to limit leaf photosynthetic function. Canopy leafing phenology in these forests is therefore poorly characterized by optical remote sensing methods which are not sensitive to …

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Farmer And Community Perceptions Of The New Rural Land Reform Policy Impacts In Henan Province, China, Lian Huijie, Agnes C. Rola, Vella A. Atienza, John Enrinorio M. Perez, Ferdinand C. Maquito, Merylyne M. Paunlagui Jan 2023

Farmer And Community Perceptions Of The New Rural Land Reform Policy Impacts In Henan Province, China, Lian Huijie, Agnes C. Rola, Vella A. Atienza, John Enrinorio M. Perez, Ferdinand C. Maquito, Merylyne M. Paunlagui

Journal of Public Affairs and Development

The household contract responsibility system which was the land reform policy from 1978 to 2008 in China revealed shortcomings in terms of its goals. This system veers away from the commune system (1958 -1978) and endows land use and management responsibility to households. The New Rural Land Reform Policy that started in 2008 aims to create a more market led policy and it captured adjustments to correct these shortcomings. This New Rural Land Reform Policy signals a significant policy change. This paper uses Lewin's change theory as a framework and Henan province in China as a case to determine the …

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Analysis Of Competencies Of The Engineering Research And Development For Technology Alumni Of The University Of The Philippines Los Banos, Paulyn G. Micor, Maria Ana T. Quimbo, John Erinorio M. Perez, Ruth Ortega-Dela Cruz Jan 2023

Analysis Of Competencies Of The Engineering Research And Development For Technology Alumni Of The University Of The Philippines Los Banos, Paulyn G. Micor, Maria Ana T. Quimbo, John Erinorio M. Perez, Ruth Ortega-Dela Cruz

Journal of Public Affairs and Development

In the context of local and global workforce and people skills competitiveness, this study sought to determine whether the Engineering Research and Development for Technology - University of the Philippines Los Banos (ERDT-UPLB) alumni are competent in their chosen employment fields. Using the Likert scale of measurement, the skills, knowledge, and attitude competencies of engineering graduates were compared to the preferred competencies of employers and potential employers. Results showed no significant difference between the existing competencies of the ERDT alumni and the preferred competencies of prospective employers. Moreover, employers and potential employers have indicated a positive and favorable response to …

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Knobcone Pine Response To Shading From Competing Chaparral Shrubs Following Stand-Replacing Wildfire, Sean T. Lindley Jan 2023

Knobcone Pine Response To Shading From Competing Chaparral Shrubs Following Stand-Replacing Wildfire, Sean T. Lindley

Cal Poly Humboldt theses and projects

In northern California, fire regimes are shifting towards more frequent and larger severe wildfire. There is growing concern that this shift poses a threat to biodiversity in the form of cover type change at the landscape scale, resulting in the extirpation of some species in favor of +AD617:AD649well-adapted ones. In northern California, mature serotinous conifers, such as knobcone pine (Pinus attenuata), and resprouting shrub species easily regenerate in severe patches of any size. There is no general consensus regarding the effects of shrub competition on conifer recruitment; conifer response varies with shade tolerance and other abiotic factors. Knobcone …

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Carnivore And Ungulate Occurrence In A Fire-Prone Region, Sara J. Moriarty-Graves Jan 2023

Carnivore And Ungulate Occurrence In A Fire-Prone Region, Sara J. Moriarty-Graves

Cal Poly Humboldt theses and projects

Increasing fire size and severity in the western United States causes changes to ecosystems, species’ habitat use, and interspecific interactions. Wide-ranging carnivore and ungulate mammalian species and their interactions may be influenced by an increase in fire activity in northern California. Depending on the fire characteristics, ungulates may benefit from burned habitat due to an increase in forage availability, while carnivore species may be differentially impacted, but ultimately driven by bottom-up processes from a shift in prey availability. I used a three-step approach to estimate the single-species occupancy of four large mammal species: mountain lion (Puma concolor), coyote …

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Patterns, Mechanisms, And Characterization Of Carbon Cycling Stability Following Partial Forest Disturbance, Kayla C. Mathes Jan 2023

Patterns, Mechanisms, And Characterization Of Carbon Cycling Stability Following Partial Forest Disturbance, Kayla C. Mathes

Theses and Dissertations

Among the most essential questions in the era of climate change is how the forest carbon (C) cycle will respond to an increase in the extent of biotic disturbances from insects and pathogens. While research has focused on stand-replacing disturbance regimes, less is known about C cycling stability following partial disturbances that produce gradients of disturbance severity. Belowground C cycling responses to disturbance are especially poorly understood, even though temperate forest soils contain up to 50% of total ecosystem C and soil respiration (Rs) accounts for more than half of temperate forest C loss. Interpreting trends and mechanisms …

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Production, Best Management Practices, And Market Impacts Of Forest Biomass Harvest And Collection In The Mid-Atlantic Region, William E. Smith Jan 2023

Production, Best Management Practices, And Market Impacts Of Forest Biomass Harvest And Collection In The Mid-Atlantic Region, William E. Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

Time motion studies were conducted at five mid-Atlantic sites that spanned various operations in West Virginia, Ohio, and Pennsylvania. The harvest systems included integrated harvests where chips were produced in the forest, roundwood systems where only roundwood was produced, and a centralized chipping system. The study collected overall productivity and machine utilization data at the various harvesting operations. The cost per green ton of woody biomass ranged from $18.46 to $39.8 resulting in an average of $30.33 among the five systems. Hauling had the highest average price per green ton at $9.10, while loading had the lowest at $1.73 per …

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Impacts Of Introduced Earthworms On Sugar Maple Sap Chemistry And The Discourse Of Invasion Ecology, Shelby Nicole Lane-Clark Jan 2023

Impacts Of Introduced Earthworms On Sugar Maple Sap Chemistry And The Discourse Of Invasion Ecology, Shelby Nicole Lane-Clark

Dissertations, Master's Theses and Master's Reports

To delve into further understanding of the relationships between introduced earthworms, forest ecosystems, and the human systems they impact, two approaches were taken. In the first approach, we seek to explore ways we can shift the discourse within and regarding the field of invasion ecology by re-framing how we approach discussion, management, and education regarding introduced species. Language issues surrounding introduced species through the example of earthworms in North America are described and potential solutions are provided, including a repositioned perspective that may facilitate better relationships with the natural world. The goal is to shift the language to be more …

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Sequencing Antisense Transcriptome Of Populus Through Antisense/Sense Transcript Pair Enrichment, Emma V. Burke Jan 2023

Sequencing Antisense Transcriptome Of Populus Through Antisense/Sense Transcript Pair Enrichment, Emma V. Burke

Dissertations, Master's Theses and Master's Reports

Past transcriptome research on plants focused primarily on protein coding genes, and only recently researchers began looking into the non-protein coding regions that may play significant roles in gene regulation. Antisense RNA transcripts that are found naturally in the cell share complementary sequence with sense transcripts and have been shown to regulate expression of their sense counterparts. Since antisense RNA has been largely under-studied and difficult to sequence because of their low relative abundance, new methods are needed to target antisense RNA for efficient genome-wide profiling. To address this gap in methods to efficiently and cost effectively enrich antisense RNA …

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White-Tailed Deer In A Winter-Wonderland: Long-Term Deer Yard Use And Methodological Considerations For Ungulate Fecal Dna Metabarcoding, Melanie A. Ottino Jan 2023

White-Tailed Deer In A Winter-Wonderland: Long-Term Deer Yard Use And Methodological Considerations For Ungulate Fecal Dna Metabarcoding, Melanie A. Ottino

Dissertations, Master's Theses and Master's Reports

Northern white-tailed deer (Odocoileus virginianus) mitigate the increased energetic costs of severe winter conditions through obligate migration to densely congregated areas with abundant conifer cover, a behavior referred to as yarding. “Deer yards” in the Western Upper Peninsula (UP) of Michigan are principally located within the reduced snowpack and increased ambient temperature microclimates of densely canopied eastern hemlock (Tsuga canadensis) stands, but specific drivers of long-term site fidelity and utilization are largely uncharacterized. As an important game species of high economic and cultural value and a keystone herbivore with critical impact of plant community composition and structure, identifying winter yarding …

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Tandem Mass Spectrometry Analysis Reveals Changes In Metabolome Profile In Triticosecale Seeds Based On Harvesting Time, Nadezhda Chikida, Mayya Razgonova, Lubov Bekish, Alexander Mikhailovich Zakharenko, Kirill Golokhvast Jan 2023

Tandem Mass Spectrometry Analysis Reveals Changes In Metabolome Profile In Triticosecale Seeds Based On Harvesting Time, Nadezhda Chikida, Mayya Razgonova, Lubov Bekish, Alexander Mikhailovich Zakharenko, Kirill Golokhvast

Turkish Journal of Agriculture and Forestry

Triticosecale "Bilinda" (cultivar was bred in the laboratories of the Leningrad Research Agriculture Institute, Branch of Russian Potato Research Centre, Leningrad Province) contains a large number of polyphenolic compounds which are biologically active components. The purpose of this work was to conduct a comparative metabolomic study of extracts of Triticosecale cultivar "Bilinda" seeds harvested at different stages of maturation. To identify target analytes in extracts HPLC was used in combination with an ion trap. The results showed the presence of 93 target compounds corresponding to Triticosecale. In addition to the reported polyphenol constituents, 28 polyphenols were newly annotated in …

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Investigation Of The Effects Of Pesticides On 'Jonagold' Apple (Malus X Domestica) Polyphenol Oxidase Enzyme Activity, Cengi̇z Çesko, Sami̇ Gashi̇, Gülnur Arabaci, Hati̇ce Palüzar, Berat Durmi̇shi̇, Era Bruçi̇, Fjolla Vllasali̇u, Nedi̇m Özdemi̇r Jan 2023

Investigation Of The Effects Of Pesticides On 'Jonagold' Apple (Malus X Domestica) Polyphenol Oxidase Enzyme Activity, Cengi̇z Çesko, Sami̇ Gashi̇, Gülnur Arabaci, Hati̇ce Palüzar, Berat Durmi̇shi̇, Era Bruçi̇, Fjolla Vllasali̇u, Nedi̇m Özdemi̇r

Turkish Journal of Agriculture and Forestry

this study, the effects of a number of commonly used pesticides on the activity of the polyphenol oxidase (PPO) enzyme from pesticide-free and pesticide-applied 'Jonagold' apples were comparatively evaluated. Substrates 4-methylcatechol, pyrocatechol, pyrogallol and L-tyrosine were used to determine the substrate specificity of the PPO enzyme obtained from apple. According to the results, on the contrary, PPO enzyme from 'Jonagold' apple did not show any activity against L-tyrosine substrate which is a monophenolic substrate, the enzyme had high affinity against 4-methylcatechol, pyrocatechol and pyrogallol which are di and tri phenolic substrates. Km values of PPO enzyme obtained from pesticide-free …

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Chemical Composition, Biological Activities, And Surface Tension Properties Of Melissa Officinalis L. Essential Oil, Özgür Çelebi̇, Hafize Fidan, Ivan Iliev, Nadezhda Petkova, Ivayla Dincheva, Vanya Gandova, Stanko Stankov, Albena Stoyanova Jan 2023

Chemical Composition, Biological Activities, And Surface Tension Properties Of Melissa Officinalis L. Essential Oil, Özgür Çelebi̇, Hafize Fidan, Ivan Iliev, Nadezhda Petkova, Ivayla Dincheva, Vanya Gandova, Stanko Stankov, Albena Stoyanova

Turkish Journal of Agriculture and Forestry

Lemon balm (Melissa officinalis L.) is a plant of the family Lamiaceae. The present study aimed to determine the chemical composition of the lemon balm essential oil grown in Northeastern Bulgaria, to perform a comparative analysis of its antimicrobial activity with that of citral, and to determine its surface tension properties. The main compounds of the essential oil (concentration above 3%) were: ß-caryophyllene (20.45%), geranial (19.74%), neral (15.81%), germacrene D (11.50%), (R)-(+)-citronellal (3.07%), and geranyl acetate (3.04%). The antibacterial activity of the essential oil was weak against the tested gram-negative and gram-positive bacteria. Exceptions were observed for Listeria monocytogenes …

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Preliminary Studies On The Effect Of Nanoparticle Seed Treatments On Seed Quality Attributes And Yield In Chickpea, Sushma Mudlupura Kumar, Shiv Yadav, Sangita Yadav, Ravish Choudhary, Sandeep Lal, Chellapilla Bharadwaj, Zakir Hussain, Priya Ranjan Kumar Jan 2023

Preliminary Studies On The Effect Of Nanoparticle Seed Treatments On Seed Quality Attributes And Yield In Chickpea, Sushma Mudlupura Kumar, Shiv Yadav, Sangita Yadav, Ravish Choudhary, Sandeep Lal, Chellapilla Bharadwaj, Zakir Hussain, Priya Ranjan Kumar

Turkish Journal of Agriculture and Forestry

Nanotechnology is a novel and emerging approach that can be utilized in the agriculture sector for biotic and abiotic stress management, disease detection, and nutrient absorption. Various metal oxide nanoparticles such as zinc, titanium, silicon oxides were found to have a positive effect on seed quality attributes in various crops. Therefore, a study was carried out on chickpea (Cicer arietinum L.) with the objective to study the effect of nanoparticles on seed quality attributes including germination, seedling growth, vigour and yield. The seeds were dressed and infused with each of nano and bulk forms of zinc oxide, titanium oxide, …

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Experimental Design Of Open-Field Temperature And Precipitation Manipulation System To Simulate Summer Extreme Climate Events For Plants And Soils, Gwang Jung Kim, Heejae Jo, Hyeonji Kim, Min Seok Cho, Nam-Jin Noh, Hanna Chang, Hyung-Sub Kim, Yowhan Son Jan 2023

Experimental Design Of Open-Field Temperature And Precipitation Manipulation System To Simulate Summer Extreme Climate Events For Plants And Soils, Gwang Jung Kim, Heejae Jo, Hyeonji Kim, Min Seok Cho, Nam-Jin Noh, Hanna Chang, Hyung-Sub Kim, Yowhan Son

Turkish Journal of Agriculture and Forestry

Extreme climate events are expected to occur very frequently and intensively with climate change, and such extreme events can induce irreversible damage to plants and soils, as well as ecosystems. Accordingly, there is a need to understand the effects of extreme climate events on ecosystems. Here, we designed a temperature and precipitation manipulation system to simulate extreme climate events of heat, drought, and heavy rainfall. We constructed three soil surface temperature manipulation levels (control, 3 °C, and 6 °C increases) and three precipitation manipulation levels (control, drought, and heavy rainfall) with six replicates, and operated these from day of year …

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Production And Oenological Potential Of Riesling Variety Clones 49, 1091 And 1089, Tatjana Jovanovic-Cvetkovic, Rada Grbic, Borut Bosancic, Miljan Cvetkovic Jan 2023

Production And Oenological Potential Of Riesling Variety Clones 49, 1091 And 1089, Tatjana Jovanovic-Cvetkovic, Rada Grbic, Borut Bosancic, Miljan Cvetkovic

Turkish Journal of Agriculture and Forestry

Clonal selection in viticulture is based on genetic variability with the aim of creating superior plants (clones) that enable more economical production. The Riesling variety, with a long tradition of cultivation, has been the subject of extensive clonal selection and clones 49, 1089 and 1091 were created in France. During the two-year period (2016-2017), the productivity and oenological potential of Riesling clones 49, 1089 and 1091 in the agroclimatic conditions of Bosnia and Herzegovina were conducted. Significant differences between clones were found in the yield per vine (1.34-1.87 kg), ten skins weight (2.17-2.46 g) and mass of ten berries seeds …

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Standardization Of Vigour Test To Predict Field Emergence And Difference Of Seed Vigour Among Lentils (Lens Culinaris L.) Seed Lots, Negar Ebrahim Pour Mokhtari Jan 2023

Standardization Of Vigour Test To Predict Field Emergence And Difference Of Seed Vigour Among Lentils (Lens Culinaris L.) Seed Lots, Negar Ebrahim Pour Mokhtari

Turkish Journal of Agriculture and Forestry

Selecting seeds with high vigour eminently affects initial plant growth and determines plant stand. Various tests including electrical conductivity (EC), radicle emergence counts (RE), and standard germination (SG) tests were used to assess the vigour of eleven lentils (Lens culinaris L.) seed lots. Lentil seed lots with over 75% normal germination, were germinated with the use of an ISTA standard germination test. The radicle emergence (2 mm) was tallied at constant intervals from 24-120 h. The seed lots were sown in the fields and 40 days after sowing, the final seedling emergence was evaluated. The standard germination test demonstrated …

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Determination Of Some Quality Properties And Antimicrobial Activities Of Kombucha Tea Prepared With Different Berries, Oktay Tomar Jan 2023

Determination Of Some Quality Properties And Antimicrobial Activities Of Kombucha Tea Prepared With Different Berries, Oktay Tomar

Turkish Journal of Agriculture and Forestry

Kombucha is a slightly sweet, acidic, carbonated, fermented beverage obtained by fermenting sugared tea (Camellia sinesis) with symbiotic bacteria. In the present study, kombucha was produced from black tea (Camellia sinensis), black grape (Vitis labrusca), black mulberry (Morus nigra), and rosehip (Rosa canina) fruits. Its physicochemical, microbiological, sensory properties and antimicrobial effects were investigated. During the fermentation, pH, Brix (%), viscosity, total antioxidant, and phenolic substance values decreased (p < 0.05). Total aerobic mesophilic bacteria (TAMB) and yeast/mold, Lactococcus/Streptococcus counts decreased, while the osmophilic yeast, acetic acid, and lactic acid bacterial counts increased (p < 0.05). The samples produced using black mulberry had the highest antibacterial activity (26.58 mm zone diameter), lowest minimum inhibitory concentration (MIC) (0.012 mg·L$^{-1}$), and minimum bactericidal concentration (MBC) (0.008 mg·L$^{-1}$) on Staphylococcus aureus. The highest …

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Artificial Intelligence As An Alternative Modelling Strategy For Reliable Height-Diameter Predictions Of Mixed-Oaks Species, Maria J. Diamantopoulou, Ramazan Özçeli̇k, Burak Koparan, Onur Alkan Jan 2023

Artificial Intelligence As An Alternative Modelling Strategy For Reliable Height-Diameter Predictions Of Mixed-Oaks Species, Maria J. Diamantopoulou, Ramazan Özçeli̇k, Burak Koparan, Onur Alkan

Turkish Journal of Agriculture and Forestry

Forest management and sustainable timber production rely on forest measurements that include tree height. However, the fieldwork needed for tree height measurements is time-consuming, and several times, hard to obtain. The solution to this problem is the construction of reliable height-diameter (h-d) models that can provide accurate tree height predictions. To this direction, a modified Gompertz model that included dominant height and diameter at breast height was used to predict tree height. In order to investigate the most promising modelling method, six alternative approaches were evaluated; these involved both regression and artificial intelligence techniques and produced the (i) …

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Study On The Effect Of Planting Pattern Adjustment On The Growth Of Kiwifruit Inter-Root Microorganisms And Fruit Quality, Haibo Wu, Lianchun Wang, Linan Kang, Chao Liu, Mingwei Li Jan 2023

Study On The Effect Of Planting Pattern Adjustment On The Growth Of Kiwifruit Inter-Root Microorganisms And Fruit Quality, Haibo Wu, Lianchun Wang, Linan Kang, Chao Liu, Mingwei Li

Turkish Journal of Agriculture and Forestry

As the area planted with kiwifruit continues to expand, monoculture continuous cropping is gradually becoming the main mode of its production. However, current kiwifruit soils suffer from nutrient deficiencies and increased toxicity of their own, which are harmful to their yield and quality. The study proposes a kiwifruit-maize intercrop as a starting point for adjusting the cropping pattern. It was then analysed in terms of basic soil physicochemical properties, sucrose enzyme activity, microbial species, and quantity, respectively, and compared with the kiwifruit intercropping method to verify its effect on inter-root microorganisms and fruit quality. The experimental outcomes demonstrated that the …

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Evaluation Of Low-Grade Red Oak (Quercus Rubra) And Red Maple (Acer Rubrum) As A Raw-Material For Cross-Laminated Timber Panel Production, Matthew Allen Young Jan 2023

Evaluation Of Low-Grade Red Oak (Quercus Rubra) And Red Maple (Acer Rubrum) As A Raw-Material For Cross-Laminated Timber Panel Production, Matthew Allen Young

Graduate Theses, Dissertations, and Problem Reports (ETD)

Hardwoods in the Appalachian region are traditionally destined for use in furniture, cabinetry, pallets, and railroad ties. The expanding market for Cross Laminated Timber (CLT) is an opportunity for increased utilization of low-quality hardwoods typically used in pallets or equipment mats. Large quantities of low-grade red oak (Quercus rubra) and red maple (Acer rubrum) to be used in CLTs would provide sufficient lumber sources that could foster the growth of CLT manufacturing facilities in the state of West Virginia or Appalachia all together. The objective of this study was to determine the yield distribution of visual structural grade quality lumber …

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Territory Inheritance And The Evolution Of Cooperative Breeding In The Acorn Woodpecker, Walter D. Koenig, Joseph Haydock, Hannah L. Dugdale, Eric L. Walters Jan 2023

Territory Inheritance And The Evolution Of Cooperative Breeding In The Acorn Woodpecker, Walter D. Koenig, Joseph Haydock, Hannah L. Dugdale, Eric L. Walters

Biological Sciences Faculty Publications

There are two main hypotheses for why offspring in cooperatively breeding taxa delay dispersal and remain on their natal territory rather than disperse. First, ecological constraints may force offspring to remain on their natal territory until a reproductive opportunity presents itself in an otherwise saturated habitat. Alternatively, delaying dispersal and helping kin may increase an offspring's inclusive fitness. One means by which offspring might enhance their direct fitness by delaying dispersal is by inheriting breeding status on their natal territory. Such territory inheritance regularly occurs in acorn woodpeckers, Melanerpes formicivorus, a species whose social groups consist of a cooperatively …

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Quantifying The Carbon Stored And Sequestered By The Trees On Pomona College’S Campus, Paola A. Giron-Carson Jan 2023

Quantifying The Carbon Stored And Sequestered By The Trees On Pomona College’S Campus, Paola A. Giron-Carson

Scripps Senior Theses

We are experiencing a climate crisis that must be confronted with strategic mitigation. Pomona College contributes to the climate crisis through its emissions for which there is a baseline record. However there is no baseline record of the climate mitigation currently performed by the trees on Pomona’s campus through carbon storage. This study seeks to determine a current baseline quantity of carbon stored and sequestrated by Pomona’s trees as well as possible courses of climate mitigation for Pomona College to take. Initial information gathering was conducted through interviews with several stakeholders. This study was conducted using data collected prior to …

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Baba Yaga: An Ecofeminist Analysis Of The Witch Of The Woods, Maya Lozinsky Jan 2023

Baba Yaga: An Ecofeminist Analysis Of The Witch Of The Woods, Maya Lozinsky

Scripps Senior Theses

In this thesis, I will argue that Baba Yaga’s prevalence in Russia’s culture and media provide a unique opportunity to gain insight into the junctures between the climate crisis and gender inequality in Russia. Despite the persistent gender inequities present in current Russian society, ecofeminist frameworks and ideologies are already deeply embedded in Russian culture. Women, as a group, have always been politically active in Russia, from resisting the introduction of Christianity in the 9th century, to the feminist resistance group Pussy Riot founded in 2011. I will examine Baba Yaga’s history, her role in the Russian folktale, and her …

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Buoyancy And Emergence In Elymus Species, Sandor Jakab Jan 2023

Buoyancy And Emergence In Elymus Species, Sandor Jakab

Williams Honors College, Honors Research Projects

It is important that native plants are able to successfully emerge in wetlands because they play an important role in maintaining diversity. The relationship between seed buoyancy and seedling emergence was analyzed for three wetland species of the same genus: Elymus canadensis (FACU), Elymus macgregorii (FACW), and Elymus virginicus (FACW). E. macgregorii seemed to be the most buoyant, and E. virginicus and E. canadensis demonstrated very similar, less buoyant levels. Based on the idea that more buoyant seeds will be deposited at a shallow depth, and less buoyant seeds will be deposited at a deeper soil level, a relationship between …

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