Comparative Growth, Hydraulic Conductivity, And Sap Flow Responses Of Seedlings Of Two Pyrus Species To Drought Stress,
2023
TÜBİTAK
Comparative Growth, Hydraulic Conductivity, And Sap Flow Responses Of Seedlings Of Two Pyrus Species To Drought Stress, Sheng Yang, Bin Xie, Liulin Li
Turkish Journal of Agriculture and Forestry
Drought is one of the major abiotic stresses limiting the advancement of the pear industry in the arid and semiarid regions of China. Currently, the production of pear seedlings mainly depends on the grafting propagation of rootstocks from Pyrus betulaefolia Bunge and Pyrus calleryana Decne. However, limited information is available on the drought stress potential of these rootstocks. Here, we conducted pot experiments with controlled watering conditions on both rootstocks' seedlings and compared their growth, plant hydraulic conductivity, and stem sap flow velocity. Both rootstocks' seedlings were challenged with three drought regimes i.e. light (LD), moderate (MD), and heavy (HD) …
Assessing The Impact Of Parallel Burnout Fires On Flank Rate Of Spread,
2023
University of Montana
Assessing The Impact Of Parallel Burnout Fires On Flank Rate Of Spread, Erik Borke
Graduate Student Theses, Dissertations, & Professional Papers
The effects of flank-parallel suppression fires on the local rate of spread (ROS) of freely burning headfires through fully cured homogeneous grass fuels are assessed. Data sets include: one thermal image stack of a prescribed burn recorded by drone, and a suite of simulation experiments carried out in Wildland Urban Interface Fire Dynamics Simulator (WFDS). A new approach to computing ROS, curvature proxy driven normals to convex polylines, was developed to carry out this analysis. ROS time series depicting flank acceleration of the prescribed burn and simulation experiments, observable under coarse and fine directional classification schemes respectively, are the primary …
Invasive Buckthorn Mapping: A Uav-Based Approach Utilizing Machine Learning, Gis, And Remote Sensing Techniques In The Upper Peninsula Of Michigan,
2023
Michigan Technological University
Invasive Buckthorn Mapping: A Uav-Based Approach Utilizing Machine Learning, Gis, And Remote Sensing Techniques In The Upper Peninsula Of Michigan, Vikranth Madeppa
Dissertations, Master's Theses and Master's Reports
An Invasive species is a species that is alien or non-native to the ecosystem which causes harm to economic, environmental, or human health (E.O. 13112 of Feb 3, 1999). Invasive species have posed a serious threat to ecosystems across the globe. These invasive species have impacts on the biodiversity and productivity of invaded forests. Remotely sensed data is a valuable resource for understanding and addressing issues related to invasive species. This study presents a novel approach for mapping the distribution of two invasive plant species, Common and Glossy Buckthorn, using unmanned aerial vehicles (UAVs), machine learning algorithms, geographic information systems …
Alleviating Effects Of Salicylic Acid Spray On Stage-Based Growth And Antioxidative Defense System In Two Drought-Stressed Rice (Oryza Sativa L.) Cultivars, Asma ., Iqbal Hussain, Muhammad Yasin Ashraf, Muhammad Hamzah Saleem, Muhammad Arslan Ashraf, Baber Ali, Aisha Shereen, Ghulam Farid, Muhammad Ali, Muhammad Ubaidullah Shirazi, Ammara Saleem, Yasser S. Mostafa, Mohamed Hashem, Ghulam Yasin
Turkish Journal of Agriculture and Forestry
Approximately 33% of the arable land around the world is vulnerable to drought, which is a very serious issue affecting the yield and productivity of cereal crops. Two contrasting rice (Oryza sativa L.) genotypes, HTT-138 (drought tolerant) and (HTT-39 droughtsensitive), under various levels of water treatments, i.e. control flooded (CF) as recommended for rice (control), control saturated (CS) 100% field capacity (FC), 80% FC, and 60% FC without or with foliar spray (100 mg L-1) of salicylic acid (SA) evaluated to enhance the yield for food security. The results showed that leaf gas exchange parameters, water use …
Competition And Herbivory Influence The Survival, Growth, And Physiology Of Native Tree Seedlings In The Kentucky Inner Bluegrass Savanna-Woodland,
2023
University of Kentucky
Competition And Herbivory Influence The Survival, Growth, And Physiology Of Native Tree Seedlings In The Kentucky Inner Bluegrass Savanna-Woodland, James D. Shaffer
Theses and Dissertations--Biology
Terrestrial plant communities are shaped by competition for resources, herbivory, and abiotic processes. Savanna systems represent a dynamic coexistence of contrasting life forms (grasses and trees) shaped by competition and disturbance. The Kentucky Inner Bluegrass Savanna-Woodland (KIBSW) is described as an open woodland of shade intolerant species; however, climatic, and edaphic conditions can support closed-canopy forest. After European pioneer settlement (c1750-1800), over 99% of “savanna-woodlands” have been lost. KIBSW remnants are experiencing a recruitment failure, leading to a dominance shift in tree communities. I researched how tree-grass competition and mammalian herbivory influence KIBSW regeneration and maintenance. The KIBSW does not …
The Long-Term Effects Of Wildfire Severity On Oak-Pine Communities And Their Microclimates,
2023
University of Kentucky
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 …
Pond-Breeding Amphibian Responses To Wetland Creation And Reforestation On A Legacy Surface Mine In The Monongahela National Forest,
2023
University of Kentucky
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 …
Livestock Depredation By Leopards, Associated Economic Losses, And Financial Compensation To Communities In Chhota Udepur District Of Central Gujarat, India,
2023
WCB Research Foundation, Patan, Gujarat, India
Livestock Depredation By Leopards, Associated Economic Losses, And Financial Compensation To Communities In Chhota Udepur District Of Central Gujarat, India, Shalu Mesaria, Pratik Desai, Shruti Patel, Dhaval Gadhavi, Anthony J. Giordano, Nishith Dharaiya
Human–Wildlife Interactions
Livestock depredation by large carnivores has been documented across the entire Indian subcontinent. The failure of managers to mitigate livestock losses in landscapes dependent on subsistence agriculture poses a threat to the conservation of carnivores. For much of Gujarat, a western Indian state characterized by extensive semi-arid habitats, the Indian leopard (Panthera pardus fusca) is considered an apex predator. Increasing regional leopard populations in response to protection efforts has led to more attacks on humans, along with an increase in rates of livestock depredation. In many cases, the regional forest department financially compensates livestock owners for depredation caused …
Estimating Northern Spotted Owl (Strix Occidentalis Caurina) Pair Detection Probabilities Based On Call-Back Surveys Associated With Long-Term Mark-Recapture Studies, 1993–2018,
2023
United States Geological Survey
Estimating Northern Spotted Owl (Strix Occidentalis Caurina) Pair Detection Probabilities Based On Call-Back Surveys Associated With Long-Term Mark-Recapture Studies, 1993–2018, Katie M. Dugger, Alan B. Franklin, Damon B. Lesmeister, Raymond J. Davis, J. David Wiens, Gary C. White, James D. Nichols, James E. Hines, Charles B. Yackulic, Carl J. Schwarz, Steven A. Ackers, L. Steven Andrews, Larissa L. Bailey, Robin Bown, Jesse Burgher, Kenneth P. Burnham, Peter C. Carlson, Tara Chestnut, Mary M. Conner, Krista E. Dilione, Eric D. Forsman, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, Julianna M. Jenkins, William L. Kendall, David W. Lapmphear, Christopher Mccafferty, Trent L. Mcdonald, Janice A. Reid, Jeremy T. Rockweit, David C. Simon, Stan G. Sovern, James K. Swingle, Heather Wise
USDA Wildlife Services: Staff Publications
The northern spotted owl (Strix occidentalis caurina; hereinafter NSO) was listed as “threatened” under the Endangered Species Act in 1990 and population declines have continued since that listing. Given the species’ protected status, any proposed activities on Federal lands that might impact NSO require consultation with U.S. Fish and Wildlife Service and part of that consultation often includes surveys to determine presence and occupancy status of the species in the proposed activity area. The objective of this report is to present study-area specific estimates of the probability of detection for NSO pairs from twelve 2-week seasonal survey periods …
Impacts Of Climate And Wildfire On Western Larch Regeneration,
2023
University of Montana, Missoula
Impacts Of Climate And Wildfire On Western Larch Regeneration, Spencer T. Vieira
Graduate Student Theses, Dissertations, & Professional Papers
Fire plays a critical role in forests of the western United States (US), but as wildfire and climate deviate from historical patterns, increasing fire activity may significantly alter forest ecosystems. To understand the impacts of changing climate and wildfire activity on conifer forests, we studied the impact of wildfire and annual post-fire climate on western larch (Larix occidentalis) regeneration. We destructively sampled 1651 seedlings from 57 sites within 32 fires that burned at moderate or high severity from 2000-2015 in the northwestern US. Using dendrochronological methods, we estimated germination years of seedlings to calculate annual recruitment rates. We …
Evaluation Of Low-Grade Red Oak (Quercus Rubra) And Red Maple (Acer Rubrum) As A Raw-Material For Cross-Laminated Timber Panel Production,
2023
West Virginia University
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
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 …
Analysis Of Morphological And Pomological Features Of Apricot In The Nakhchivan Autonomous Republic Of Azerbaijan,
2023
TÜBİTAK
Analysis Of Morphological And Pomological Features Of Apricot In The Nakhchivan Autonomous Republic Of Azerbaijan, Ami̇na Raki̇da
Turkish Journal of Agriculture and Forestry
Apricot (Prunus armeniaca L.) is grown across a wide geographical area and has been cultivated in Azerbaijan for more than three thousand years. The purpose of the study was to characterize the apricot varieties and forms collected from the Nakhchivan Autonomous Republic of Azerbaijan. Fourty-four apricot varieties and forms were studied according to 10 (phenological, pomological, morphological) parameters. A wide variation was found between yield, total soluble solids and fruit weight among varieties and forms. Fruits of the most of apricot varieties and forms were small, only two of them-Hampa and Limon Erik 2-had a fruit weight more than …
New Office Supports Maine Climate Action,
2023
University of Maine
New Office Supports Maine Climate Action, Parker Gassett, Ivan Fernandez
Maine Policy Review
Expanding and expediting access to climate change information can improve collective action outcomes. Accordingly, the Maine Climate Action Plan called for the creation of an information-coordinating hub, to enable effective and efficient use of climate information in Maine’s climate change response. To aid that need, the University of Maine created the Maine Climate Science Information Exchange (MCSIE) office as a gateway to information about climate-relevant research, the scientists conducting that research, and the most recent data and applied science efforts relating to Maine’s climate change strategies. The office was established in 2023, after a year of developing prototypes of the …
The Art And Science Of Wood: From Pyrography To Termites And Wood Decomposition,
2023
Michigan Technological University
The Art And Science Of Wood: From Pyrography To Termites And Wood Decomposition, Joanna D. Walitalo
Dissertations, Master's Theses and Master's Reports
Wood is vital to many natural ecosystems, as it provides energy, nutrients, and habitat for organisms from the micro- to the macro- scale. Wood is also critical to humans for similar reasons, and can be an important medium of art and education. This dissertation addresses three diverse aspects of wood with the contexts of science, art, and education. First, we explored the impact of timber harvest techniques and site preparation on microbial wood decay and subterranean termite responses on a forest-stand scale. The amount of coarse woody debris removed post-harvest, coupled with the location and species of the test wood …
Sequencing Antisense Transcriptome Of Populus Through Antisense/Sense Transcript Pair Enrichment,
2023
Michigan Technological University
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 …
Buoyancy And Emergence In Elymus Species,
2023
The University of Akron
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 …
Quantifying The Carbon Stored And Sequestered By The Trees On Pomona College’S Campus,
2023
Scripps College
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 …
Baba Yaga: An Ecofeminist Analysis Of The Witch Of The Woods,
2023
Scripps College
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 …
Genome-Wide Identification And Characterization Of Auxin Response Factor (Arf) Gene Family Involved In Wood Formation And Response To Exogenous Hormone Treatment In Populus Trichocarpa,
2023
Northeast Forestry University
Genome-Wide Identification And Characterization Of Auxin Response Factor (Arf) Gene Family Involved In Wood Formation And Response To Exogenous Hormone Treatment In Populus Trichocarpa, Yingying Liu, Ruiqi Wang, Jiajie Yu, Shan Huang, Yang Zhang, Hairong Wei, Zhigang Wei
Michigan Tech Publications
Auxin is a key regulator that virtually controls almost every aspect of plant growth and development throughout its life cycle. As the major components of auxin signaling, auxin response factors (ARFs) play crucial roles in various processes of plant growth and development. In this study, a total of 35 PtrARF genes were identified, and their phylogenetic relationships, chromosomal locations, synteny relationships, exon/intron structures, cis-elements, conserved motifs, and protein characteristics were systemically investigated. We also analyzed the expression patterns of these PtrARF genes and revealed that 16 of them, including PtrARF1, 3, 7, 11, 13–17, 21, 23, 26, 27, 29, 31, …
Análisis Ambiental Y Socioeconómico De La Inversión En Vías Terciarias En Colombia Mediante El Uso De Herramientas Geoespaciales Desde El Año 2016 Hasta El 2022,
2023
Universidad de La Salle, Bogotá
Análisis Ambiental Y Socioeconómico De La Inversión En Vías Terciarias En Colombia Mediante El Uso De Herramientas Geoespaciales Desde El Año 2016 Hasta El 2022, Yeray Sofía Junco Salgado
Ingeniería Ambiental y Sanitaria
En Colombia, la inversión en infraestructura vial terciaria ha emergido como una estrategia fundamental para potenciar la accesibilidad en zonas rurales y estimular el progreso económico y social. No obstante, estos proyectos ostentan una intricada relación con aspectos ambientales y socioeconómicos que requieren un análisis más profundo. Esta investigación se enfoca en examinar si existe una correlación entre los proyectos de vías terciarias y la transformación de las coberturas boscosas, así como los indicadores de pobreza rural. Para ello, se ha compilado información del Sistema Electrónico de Contratación Pública (SECOP) y se ha desarrollado un eficiente dashboard geoespacial que posibilita …
