A Novel Mechanism To Explain Success Of Invasive Herbaceous Species At The Expense Of Natives In Eastern Hardwood Forests,
2015
Marshall University
A Novel Mechanism To Explain Success Of Invasive Herbaceous Species At The Expense Of Natives In Eastern Hardwood Forests, Frank S. Gilliam
Biological Sciences Faculty Research
Among the more intriguing topics in general ecology courses are the symbiotic relationships (the ‘-isms’ as I sometimes present them – mutualism, commensalism, and parasitism). Of these, mutualism is typically the most appealing to students. The scenario that different species can not only co-exist, but can also provide essential resources/services for one another, resonates well with all but the least interested in the course. Ultimately, however, there is also the palpable degree of dismay when they discover that these relationships arise from mutual exploitation, rather than from some benign force of nature. A flip-side of this, in many ways a …
Use Of Landsat Data To Characterize Burn Severity, Forest Structure And Invasion By Paulownia (Paulownia Tomentosa) In An Eastern Deciduous Forest, Kentucky,
2015
University of Kentucky
Use Of Landsat Data To Characterize Burn Severity, Forest Structure And Invasion By Paulownia (Paulownia Tomentosa) In An Eastern Deciduous Forest, Kentucky, Suraj Upadhaya
Theses and Dissertations--Forestry and Natural Resources
Landsat imagery has been used successfully to assess burn severity and monitor post-fire forest structure in a variety of ecosystems, but to date there are few documented studies on its application in the eastern deciduous forests of the eastern United States. The occurrence of a wildfire in the Daniel Boone National Forest in2010 provided a rare opportunity for research into the use of Landsat data for assessing burn severity and its ecological effects. We used differenced normalized burn ratio (∆NBR) to quantify burn severity. The ∆NBR based burn severity classification had 70% agreement with a qualitative ground-based burn severity assessment. …
Quaking Aspen At The Residential-Wildland Interface: Elk Herbivory Hinders Forest Conservation.,
2015
Utah State University
Quaking Aspen At The Residential-Wildland Interface: Elk Herbivory Hinders Forest Conservation., Paul C. Rogers, Allison Jones, James Catlin, James Shuler, Arthur Morris, Michael R. Kuhns
Aspen Bibliography
T: Quaking aspen (Populus tremuloides) forests are experiencing numerous impediments across North America. In the West, recent drought, fire suppression, insects, diseases, climate trends, inappropriate management, and ungulate herbivory are impacting these high biodiversity forests. Additionally, ecological tension zones are sometimes created at residential-wildland interfaces with divergent management directives. For example, private conservation reserves bordering public land may be degraded from browsing where game species find refuge from hunting and plentiful forage. We examined putative herbivore impacts to nearly pure aspen forests at Wolf Creek Ranch (WCR), a sparsely developed residential landscape in northern Utah. Forty-three one-hectare monitoring …
Altered Fire Regimes And The Persistence Of Quaking Aspen In The Rocky Mountains: A Literature Review,
2015
Utah State University
Altered Fire Regimes And The Persistence Of Quaking Aspen In The Rocky Mountains: A Literature Review, Aaron Rosenblum
Aspen Bibliography
The persistence of quaking aspen (Populus tremuloides Michx.) is of significant importance to land managers in the Rocky Mountain region. Fire suppression in the past century has been implicated as a mechanism influencing aspen population dynamics, as aspen are generally considered an early seral disturbance adapted species. The heterogeneity of aspen community assemblages and fire regimes makes it difficult to discern what the result of fire suppression has been at large spatial and temporal scales. Decision makers should investigate the questions at hand at the stand level in their study location to best determine the mechanisms at play, as well …
Long-Term Vegetation Change In Utah's Henry Mountains: A Study In Repeat Photography,
2015
Utah State University
Long-Term Vegetation Change In Utah's Henry Mountains: A Study In Repeat Photography, Charles E. Kay
Aspen Bibliography
An extensive search was conducted of archival and other sources to locate as many historical photographs as possible for the Henry Mountains in south-central Utah. Those images were then taken into the field, the original camera stations relocated, and modern pictures made of the historical scenes to evaluate long-term vegetation change and land management activities. In all, 626 repeat photo sets were compiled—608 by the author and 18 by Earl Hindley. This book includes 126 photo sets that were representative of the areas studied.
Regeneration Dynamics Of White Spruce, Trembling Aspen, And Balsam Poplar In Response To Disturbance, Climatic, And Edaphic Factors In The Cold, Dry Boreal Forests Of The Southwest Yukon, Canada,
2015
Utah State University
Regeneration Dynamics Of White Spruce, Trembling Aspen, And Balsam Poplar In Response To Disturbance, Climatic, And Edaphic Factors In The Cold, Dry Boreal Forests Of The Southwest Yukon, Canada, Shyam K. Paudel, Craig R. Nitschke, Suzanne W. Simard, John L. Innes
Aspen Bibliography
The southwestern region of the Yukon Territory of Canada has experienced an unprecedented spruce bark beetle outbreak (Dendroctonus rufipennis) and an increase in the frequency of forest fires that extend beyond historical trends and that have caused significant impacts on forest structure and composition. A Strategic Forest Management Plan (SFMP) for the Champagne and Aishihik Traditional Territory located in the southwest Yukon was implemented in 2004 in response to the spruce bark beetle (D. rufipennis) infestation and increased fire risk. The plan has recommended salvage harvesting of beetle-killed stands as a strategy to facilitate the development …
Re-Envisioning Community-Wildfire Relations In The U.S. West As Adaptive Governance,
2015
University of Oregon
Re-Envisioning Community-Wildfire Relations In The U.S. West As Adaptive Governance, Jesse B. Abrams, Melanie Knapp, Travis B. Paveglio, Autumn Ellison, Cassandra Moseley, Max Nielsen-Pincus, Matthew S. Carroll
Environmental Science and Management Faculty Publications and Presentations
Prompted by a series of increasingly destructive, expensive, and highly visible wildfire crises in human communities across the globe, a robust body of scholarship has emerged to theorize, conceptualize, and measure community-level resilience to wildfires. To date, however, insufficient consideration has been given to wildfire resilience as a process of adaptive governance mediated by institutions at multiple scales. Here we explore the possibilities for addressing this gap through an analysis of wildfire resilience among wildland-urban interface communities in the western region of the United States. We re-engage important but overlooked components of social-ecological system resilience by situating rural communities within …
Changes In Enzymatic And Nonenzymatic Antioxidant Defense Mechanisms Of Canola Seedlings At Different Drought Stress And Nitrogen Levels, Seyed Ahmad Kalantar Ahmadi, Ali Ebadi, Sodabeh Jahanbakhsh, Jahanfar Daneshian, Seyed Ataolah Siadat
Turkish Journal of Agriculture and Forestry
To evaluate the responses of canola seedlings to different levels of drought stress and nitrogen at different growth stages, a factorial experiment was conducted in a completely randomized design with three replications at the experimental greenhouse of Mohaghegh Ardabili University in 2013. Treatments included three levels of drought stress (30%, 50%, and 70% of FC) and five levels of nitrogen (control, based on soil test results; 25% less than the recommended level; 50% less than the recommended level; 25% more than the recommended level; and 50% more than the recommended level). The recommended level of nitrogen, based on soil test …
Silicon-Mediated Oxidative Stress Tolerance And Genetic Variability In Rice(Oryza Sativa L.) Grown Under Combined Stress Of Salinity And Boron Toxicity, Muhammad Ansar Farooq, Zulfiqar Ahmad Saqib, Javaid Akhtar
Turkish Journal of Agriculture and Forestry
The benefits of silicon (Si) in improving crop fitness by biotic and abiotic stress resistance are widely reported. However, investigations about its protective mechanisms for plants facing multiple stresses are very limited. Two contrasting rice cultivars, KS-282 (salt-tolerant) and IRRI-6 (salt-sensitive), were grown in a pot experiment to study the interrelation between Si supplementation (0 and 150 mg kg-1) and boron (B) toxicity (0 and 2.5 mg kg-1) under salinity stress with emphasis on growth response, mineral contents, physiology, and enzymatic antioxidant system response. The results revealed that adverse growth conditions, particularly the combined stress of salinity and B toxicity, …
Crude Extract Of Trichoderma Elicits Agarwood Substances In Cell Suspensionculture Of The Tropical Tree, Aquilaria Malaccensis Lam., Shashita Jayaraman, Rozi Mohamed
Turkish Journal of Agriculture and Forestry
Agarwood is the precious fragrant wood produced by the tropical tree Aquilaria, often after elicitation by wounding or fungal attack. In this study we established a cell suspension culture of A. malaccensis from leaf-derived callus and induced agarwood production in the culture using fungal elicitors. Elicitors were made from crude mycelial extracts of two fungal species from the genera Trichoderma and Lasidiplodia. The elicitors were added to the cell suspension culture, initiated with 2 g of fresh calli, at concentrations ranging from 2 to 10 mg L-1. A light agarwood scent was detected from the suspension culture elicited with 8 …
Genetic Variation In Wheat Germplasm For Salinity Tolerance Atseedling Stage: Improved Statistical Inference,
2015
TÜBİTAK
Genetic Variation In Wheat Germplasm For Salinity Tolerance Atseedling Stage: Improved Statistical Inference, Babar Hussain, Abdus Salam Khan, Zulfiqar Ali
Turkish Journal of Agriculture and Forestry
Salinity is the major threat to global wheat production, particularly in arid and semiarid areas. Breeding salt-tolerant cultivars is one feasible solution, while the presence of genetic variation is a prerequisite for genetic improvement. To detect genetic variation for salt tolerance in wheat, a total of 150 wheat genotypes were tested for seedling-stage tolerance response at 300 mM NaCl in hydroponic culture. Significant differences (P ≤ 0.001) were identified in wheat for seedling traits, and 20 salt-tolerant and 5 susceptible genotypes were selected on the basis of root and shoot weights. These 25 genotypes were tested for salt-tolerance response at …
Effects Of Roasting And Enzyme Pretreatments On Yield And Quality Of Cold-Pressed Poppy Seed Oils,
2015
TÜBİTAK
Effects Of Roasting And Enzyme Pretreatments On Yield And Quality Of Cold-Pressed Poppy Seed Oils, Di̇lek Dündar Emi̇r, Buket Aydeni̇z, Emi̇n Yilmaz
Turkish Journal of Agriculture and Forestry
The aim of this study was to compare the effects of roasting and enzyme pretreatments on the yield and quality of cold-pressed oils obtained from 3 poppy seed varieties (Ofis 3 (blue), Ofis 4 (yellow), Ofis 8 (white)). The oil recovery range was 21.89%-38.36% with cold pressing. The oily cakes (meal) contained 42-168 g/kg oil and 113-166.3 g/kg moisture after the cold pressing. Physicochemical and quality tests were conducted to evaluate and compare the efficacy of the pretreatments. Furthermore, fatty acid, sterol, and tocopherol compositions were determined. Oil recovery was enhanced by enzyme treatment in Ofis 3 (28.31%) and Ofis …
The Response To Bacterial Inoculation Is Cultivar-Related In Strawberries,
2015
TÜBİTAK
The Response To Bacterial Inoculation Is Cultivar-Related In Strawberries, Jelena M. Tomic, Jasminka M. Milivojevic, Marijana I. Pesakovic
Turkish Journal of Agriculture and Forestry
This study was carried out to evaluate the impact of biofertilizer and cultivar on vegetative potential (height of the plant, number of crowns and leaves per plant, and the area of a single leaf), leaf mineral composition (micro- and macroelements), yield potential (number of inflorescences and fruit set per plant, yield per plant, and yield per square meter), fruit characteristics (mass, length, width, and fruit shape index), and chemical traits (soluble solids content, titratable acidity (TA), vitamin C, total anthocyanins (TACY), total phenolic content (TPC), and total antioxidant capacity (TAC)) in the fruits of Clery, Joly and Dely strawberry plants. …
Simulation Of Forest Harvesting Alternative Processes And Concept Design Ofan Innovative Skidding Winch Focused On Productivity Improvement, Giuseppe Di Gironimo, Alessio Balsamo, Gianpiero Esposito, Antonio Lanzotti, Kenan Melemez, Raffaele Spinelli
Turkish Journal of Agriculture and Forestry
In contexts in which mechanized harvesting is limited, such as in the northwestern Black Sea region of Turkey, it is important to improve timber harvesting productivity while preserving operators' safety and reducing environmental damage. This study aims to introduce a methodology in which the harvesting process is simulated with discrete-event simulation (DES) software in order to identify bottlenecks. An alternative process is compared to the original within the DES software, carrying out further steps oriented to the generation of new innovative product concepts. As a case study, the design of an innovative skidding winch is proposed. The development of the …
Major Quantitative Trait Loci For Flowering Time In Lentil,
2015
TÜBİTAK
Major Quantitative Trait Loci For Flowering Time In Lentil, Abdullah Kahri̇man, Hülya Yilmaz Temel, Abdulkadi̇r Aydoğan, Muhammed Bahatti̇n Tanyolaç
Turkish Journal of Agriculture and Forestry
Quantitative trait loci (QTLs) for flowering time (FT) in lentil were located using a recombinant inbreed line population derived from an intraspecific cross of Precoz × WA8649041. Experiments for FT were conducted in 2 locations (Haymana, Turkey and Pullman, WA, USA) for 5 years (from 1998 to 2002 in both Pullman and Haymana). A linkage map was constructed using 149 markers (RAPD, AFLP, ISSR, SSR, and 2 morphological markers) located on 11 linkage groups (LGs). Analysis of variance of FT was found to be significant for all locations and years. One major QTL for FT was identified on LG6 across …
Growth, Yield, And Calcium And Boron Uptake Of Tomato(Lycopersicon Esculentum L.) And Cucumber (Cucumis Sativus L.) Asaffected By Calcium And Boron Humate Application In Greenhouse Conditions, Melek Eki̇nci̇, Aslihan Esri̇ngü, Ati̇lla Dursun, Ertan Yildirim, Meti̇n Turan, Mehmet Rüştü Karaman, Tuba Arjumend
Turkish Journal of Agriculture and Forestry
The objective of this study was to examine the effect of calcium humate, boron humate, and humic acid solutions on growth, yield, quality, and calcium and boron uptake of tomato (Lycopersicon esculentum L.) and cucumber (Cucumis sativus L.), as well as changes in soil nutrient status after crop harvest. Four different concentrations (500, 1000, 3000, and 5000 mg kg-1) of calcium humate (12% CaO, 15% humic and fulvic acid), boron humate (10% BOH4, 15% humic and fulvic acid), and humic acid (15% humic and fulvic acid) were used in this research. The results revealed that Ca humate, B humate, and …
Physical And Chemical Properties Of Recently Deposited Sediments In The Reservoir Of The Borçka Dam In Artvin, Turkey,
2015
TÜBİTAK
Physical And Chemical Properties Of Recently Deposited Sediments In The Reservoir Of The Borçka Dam In Artvin, Turkey, Bülent Turgut, Mehmet Özalp, Bahti̇yar Köse
Turkish Journal of Agriculture and Forestry
Large dams produce important changes in flow regime and sediment deposition and distribution in rivers. When inundation starts with the building of dams, water surface area increases, flow rate decreases, and sediment carried by the river is deposited in the reservoir. However, there is a lack of research on the physical and chemical properties of recently deposited sediment in reservoirs of large dams. We aimed to fill this gap in the literature by providing valuable data on the initial formation of sediment deposition areas in reservoirs. Therefore, the aim of this study conducted within the Borçka Dam reservoir was to …
Evaluation Of Drought Tolerance Of Winter Bread Wheat Genotypes Underdrip Irrigation And Rain-Fed Conditions,
2015
TÜBİTAK
Evaluation Of Drought Tolerance Of Winter Bread Wheat Genotypes Underdrip Irrigation And Rain-Fed Conditions, Jamala Mursalova, Zeynal Akparov, Javid Ojaghi, Mahammad Eldarov, Savaş Belen, Nurberdi Gummadov, Alexey Morgounov
Turkish Journal of Agriculture and Forestry
To evaluate the genetic diversity in 48 winter bread wheat genotypes originating from different countries, an experiment based on randomized complete block design with 4 replications was carried out in drip irrigation and rain-fed conditions at the field station of the Transitional Zone Agricultural Research Institute, Eskişehir, Turkey in 2011 and 2012. Based on grain yield under rain-fed and irrigated conditions, drought tolerance indices, i.e. stress susceptibility index (SSI), stress tolerance index (STI), tolerance index (TOL), mean productivity (MP), and geometric mean productivity (GMP), were calculated to identify genotypes with better yield and drought tolerance. Analysis of variance indicated that …
Nebraska Statewide Forest Action Plan - 2015,
2015
Nebraska Forest Service
Nebraska Statewide Forest Action Plan - 2015, Scott Josiah, John Erixson
Nebraska Forest Service: Publications
The Nebraska Forest Action Plan identifies strategic goals based on national objectives collaboratively crafted by both the National Association of State Foresters and the USFS State & Private Forestry Program. The strategic goals and actions identified in this document serve as a blueprint for focusing private, state and federal resources in areas of Nebraska where they will be most effective.
Striking The Balance: Challenges And Perspectives For The Protected Areas Network In Northeastern European Russia,
2015
Russian Academy of Sciences
Striking The Balance: Challenges And Perspectives For The Protected Areas Network In Northeastern European Russia, Svetlana V. Degteva, Vasily I. Ponomarev, Sasha W. Eisenman, Vyacheslav Dushenkov
Publications and Research
Increasing anthropogenic pressure on the largest remaining tracts of old-growth boreal forest in Europe necessitates additional conservation of ecosystems and biodiversity in northeastern European Russia. In a regional network comprising 8 % of the Nenets Autonomous District and 13.5 % of the Komi Republic, 248 areas have varying protected statuses as state nature reserves (zapovedniks), national parks, reserves/sanctuaries (zakazniks), or natural monuments. Due to increased natural resource extraction in this relatively pristine area, designation of additional protected areas is critical for the protection of key ecological sites. The history of ecological preservation in these regions is herein described, and recent …
