Is Context Dependency Imperative To Understanding The Impacts Of Invasive Plants?,
2020
Eastern Illinois University
Is Context Dependency Imperative To Understanding The Impacts Of Invasive Plants?, Brendan B. Haile
Masters Theses
Introduced exotic species have a tendency to become invasive and impact local biological communities. Invasions often impact community attributes such as cover and species richness, but these factors may also regulate patterns of invasion. In such cases, impacts may be dependent on the invasion context. We used data from the Buell-Small Succession Study, a long-term permanent plot study in the piedmont region of New Jersey, to document context dependency in invasion. To do this, we analyzed the factors that affected the colonization and growth of four invasive species, Alliaria petiolata, Lonicera japonica, Microstegium vimineum and Rosa multiflora, as well …
Patterns Of Epiphytic Lichen Abundance On Aspen Stands In Proximity To Roads Of Varying Vehicular Traffic,
2020
Teton Science Schools
Patterns Of Epiphytic Lichen Abundance On Aspen Stands In Proximity To Roads Of Varying Vehicular Traffic, D. Aragon, C. Castillo, J. Moffroid, G. Thomas
Aspen Bibliography
Although present in nearly any wild space with available moisture and on a wide variety of substrates, lichen, and its importance as a bioindicator for an ecosystem, is often overlooked. As air pollution becomes a greater concern for flora, fauna, and even humans, the story told by lichen growth becomes more useful as we try to make sense of the downstream effects of anthropogenic contributions to poor air quality. One such human-driven pollutant is the level of emissions that result from vehicular travel. The Jackson Hole area has experienced a large increase in vehicular traffic in the past five to …
Pando Clone Recovery: Repeat Photos 2014-2019,
2020
Utah State University
Pando Clone Recovery: Repeat Photos 2014-2019, Mary O'Brien, Marc Coles-Ritchie
Aspen Bibliography
The world's largest known clone of aspen (Populus tremuloides), called the "Pando Clone" is located in the Fishlake National Forest in central Utah. For many decades, significant pressure from ungulate (deer and cattle) browsing has prevented growth of young aspen stems in to trees that would replace the mature trees as they die of natural causes. There has been concern that this impressive 104-acre Pando Clone could be lost altogether due to the excessive browsing of young aspen stems. In 2013, 16 acres of this clone were fenced to exclude all ungulates (deer and cattle) so that recovery …
Elevated In-Soil Co2 Affects Physiology And Growth Of Pinus Densiflora And Quercus Variabilis Seedlings Under An Artificial Co2 Release Experiment, Hyunjun Kim, Seung Hyun Han, Seongjun Kim, Hanna Chang, Yowhan Son
Turkish Journal of Agriculture and Forestry
It is important to understand how woody species are affected by elevated in-soil CO2 for carbon capture and storage (CCS). A study was conducted to analyze the effects of artificially released in-soil CO2 on the physiology and growth of 4-year-old Pinus densiflora and 3-year-old Quercus variabilis seedlings. Approximately 7.9 kg CO2 plot-1 d-1 was released at a depth of 0.5 m over the period from 20 June to 20 July 2017. For both species, chlorophyll fluorescence and content, photosynthetic rate, and leaf size significantly decreased after the CO2 release. However, stomatal behavior varied between these species under the elevated in-soil …
Chemical Composition And Antimicrobial And Antioxidant Activity Of Helichrysum Italicum (Roth) G.Don Subspecies Essential Oils,
2020
TÜBİTAK
Chemical Composition And Antimicrobial And Antioxidant Activity Of Helichrysum Italicum (Roth) G.Don Subspecies Essential Oils, Silviya Mollova, Hafize Fidan, Daniela Antonova, Dimitar Bozhilov, Stanko Stanev, Iliana Kostova, Albena Stoyanova
Turkish Journal of Agriculture and Forestry
The chemical composition and the antimicrobial and antioxidant activity of essential oils from two Helichrysum italicum (Roth) G.Don subspecies grown in Bulgaria were investigated. As a result, 95 compounds with concentrations above 0.05% were detected by GC/MS and 46 of them, mainly mono- and sesquiterpenes, representing 79.81% and 85.51% of the total content of the samples, were identified. The main constituents of the essential oil from Helichrysum italicum subsp. microphyllum (plant origin from Bosnia) were monoterpene α-pinene (20.84%) and sesquiterpene γ-curcumene (16.53%), followed by β-selinene (5.59%), ar-curcumene (4.39%), trans-caryophyllene (4.35%), β-diketone italidione I (4.32%), α-selinene (4.28%), and neryl acetate (3.81%). …
Changes Of Some Horticultural Characteristics In Jujube (Ziziphus Jujube Mill.) Fruit At Different Ripening Stages,
2020
TÜBİTAK
Changes Of Some Horticultural Characteristics In Jujube (Ziziphus Jujube Mill.) Fruit At Different Ripening Stages, Hakan Keles
Turkish Journal of Agriculture and Forestry
In this study, changes in some horticultural characteristics of jujube fruits at two ripening stages were investigated. The ripening stages were determined by reference degree (%) of the red zone on the surface of the fruit: white ripening stage (WR), 5-15%; red ripening stage (RR), 95-100%. Fruit weight, length, width, color, and firmness were examined as morphological characteristics; phenolics, organic acids, fatty acids, and sugars were evaluated as biochemical characteristics. Fruit weight was 22.63 g in the WR stage and 28.42 g in the RR stage. The dominant phenolic acid was p-hydroxybenzoic acid in both ripening stages (623 mg 100 …
Comparison Of Metamitron Efficiency For Postbloom Thinning Of Young 'Gala' And'golden Delicious' Apple Trees,
2020
TÜBİTAK
Comparison Of Metamitron Efficiency For Postbloom Thinning Of Young 'Gala' And'golden Delicious' Apple Trees, Dragan D. Radivojevic, Jasminka Milivojevic, Milos Pavlovic, Matej Stopar
Turkish Journal of Agriculture and Forestry
The aim of this study was to evaluate the thinning efficacy of metamitron applied either alone (single or double application) or in combination with 6-benzyladenine (BA) or naphthalene acetic acid (NAA) in young 'Gala' and 'Golden Delicious' apple trees. The experiment was carried out during the first three crop seasons, 2014, 2015, and 2016, at the commercial orchard located on the mountain Fruska Gora, Serbia. Application of chemical thinners was carried out at two fruit diameter stages (6-9 and 12-15 mm). The number of fruit and yield per tree, fruit size distribution, parameters of fruit ripeness, and return bloom were …
The Effect Of Nitrogen Applications On The Growth Of Young Olive Trees And Nitrogen Useefficiency,
2020
TÜBİTAK
The Effect Of Nitrogen Applications On The Growth Of Young Olive Trees And Nitrogen Useefficiency, Isabel Ferreira, Margari̇da Arrobas, José Moutinho-Pereira, Carlos M. Correia, Manuel Angelo Rodrigues
Turkish Journal of Agriculture and Forestry
Two field trials (FieldExp1 and FieldExp2) and a pot experiment (PotExp) were c0onducted over a period of 3 years to assess olive tree response to nitrogen (N) applications and to estimate apparent N recovery. FieldExp1 was installed in a 3-year-old olive grove. FieldExp2 consisted of a plantation of young rooted plants. Two treatments were applied in both experiments: N application and a nonfertilized control. In PotExp, 4 N rates were used. In FieldExp1, olive yield significantly increased with applied N in only 1 of the 3 growing seasons. In FieldExp2, aboveground dry matter yield significantly increased with N application. In …
Larvicidal Effect Of Achillea Biebersteinii Afan. (Asteraceae) Essential Oil Against Larvaeof Pine Processionary Moth, Thaumetopoea Pityocampa (Denis & Schiffermüller, 1775)(Lepidoptera: Notodontidae), Memi̇ş Kesdek, Şaban Kordali, Ayşe Usanmaz Bozhüyük, Melek Güdek
Turkish Journal of Agriculture and Forestry
The pine processionary moth, Taumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae), is an important pest of coniferous trees in the forests of Turkey and throughout the world. In order to control this pest, different methods such as mechanical, biological, and chemical control have been used. However, this pest is still a major problem in Turkey, as well as globally. The study aimed to investigate the larvicidal effect of essential oil obtained from Achillea biebersteinii Afan. (Asteraceae) in different doses (10, 15, and 20 μL Petri-1) over time (12, 24, 36, and 48 h) against T. pityocampa larvae in laboratory …
Biochemical Content In Fruits Of Peach And Nectarine Cultivars,
2020
TÜBİTAK
Biochemical Content In Fruits Of Peach And Nectarine Cultivars, Mustafa Kenan Geçer
Turkish Journal of Agriculture and Forestry
In Turkey, there is an increasing interest for peach and nectarine fruits due to their sensory properties and nutritional values. The large diffusion of new peach and nectarine cultivars requires the knowledge of all fruit characteristics in connection with the cultivation area to satisfy market demand. This study seeks to determine fruit quality attributes and nutraceutical values of 7 commercially important peach (Glohaven, Dixired, Cresthaven, Redhaven, Merrill Gem Free, June Gold, and Jefferson) and 4 nectarine cultivars (Nectared4, Gransun, Cherokee, and Royal Glo) grown in Malatya region of Turkey. The fruits were evaluated for their phenolic compounds (protocatechuic, rutin, quercetin, …
Phenotypic Variability Of Autochthonous Walnut (Juglansregia L) Genotypes Innorthwestern Bosnia And Herzegovina,
2020
TÜBİTAK
Phenotypic Variability Of Autochthonous Walnut (Juglansregia L) Genotypes Innorthwestern Bosnia And Herzegovina, Azra Skender, Mirsad Kurtovic, Pakeza Drkenda, Dinko Becirspahic, Aziz Ebrahimi
Turkish Journal of Agriculture and Forestry
The main objective of this study was to examine the characteristics and the relationship between walnuts in the Una-Sana Canton based on phenotypic properties. This is the first study of preselection of walnut variability in this area. In this study, we evaluated the phenological and morphological characteristics of 75 selected genotypes during 2014 and 2015. Twenty-four phenotypic traits were monitored throughout 2 years on different sites. The results of the PCA analysis showed a very high heterogeneity of walnut seedlings on the examined sites, from the aspect of observed parameters. A limited number of superior genotypes were found, but individual …
Changes In Some Vegetation Properties Of The Rangelands Of The Palandöken Mountains, Erzurum, Over Two Decades,
2020
TÜBİTAK
Changes In Some Vegetation Properties Of The Rangelands Of The Palandöken Mountains, Erzurum, Over Two Decades, Ali̇ Koç, Mehmet Keri̇m Güllap, Mustafa Sürmen, Hali̇l İbrahi̇m Erkovan
Turkish Journal of Agriculture and Forestry
Plant community responses to environmental changes depend upon management strategies, climate, topography, and time. The objective herein was to determine canopy coverage and botanical changes in Turkish highland rangelands with different topographical characteristics between 1993 and 2013. Trends in the plant composition changed depending on the slope aspect (compass direction) and topography. The contribution of the grasses to the canopy decreased, while that of legumes and the other families increased. The results indicated that rangeland degradation occurred under uncontrolled grazing conditions. Suitable range management changes are recommended for the conservation of natural resources in the highland rangelands of Turkey.
Some Important Physicochemical And Bioactive Characteristics Of The Main Apricot Cultivars From Turkey,
2020
TÜBİTAK
Some Important Physicochemical And Bioactive Characteristics Of The Main Apricot Cultivars From Turkey, Neva Karataş, Memnune Şengül
Turkish Journal of Agriculture and Forestry
Turkey is one of the world's leading producers in both in fresh and dried apricots, and Malatya Province is the capital for apricots. In the present study, the fruit of 13 apricot cultivars (Adilcevaz, Alkaya, Aprikoz, Çataloğlu, Hacıhaliloğlu, Hasanbey, İsmailağa, Kabaaşı, Mahmuduneriği, Soğancı, Şam, Şekerpare, and Tokaloğlu-Erzincan), grown together at the Apricot Research Institute in Malatya Province, were harvested and evaluated for some important physicochemical and bioactive characteristics. The results showed statistically significant differences in most of the physicochemical and bioactive characteristics. Fresh apricot fruit peel color values, L, a, and b, were determined as between 48.66 and 64.70, 8.12 …
Timber Talk, Vol. 58, No. 4, December 2020,
2020
University of Nebraska - Lincoln
Timber Talk, Vol. 58, No. 4, December 2020
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 58, No. 4, December 2020
Aquatic Habitat Changes Along The Arkansas River (Supporting Data And Code),
2020
Mississippi State University
Aquatic Habitat Changes Along The Arkansas River (Supporting Data And Code), Mike Rhodes, Jonathan Spurgeon, Wes Neal, Kristine Evans
CFR Publications
The associated code and data are supporting information for an assessment of large-scale changes in aquatic habitats within the varying pools of the Arkansas River, Arkansas, USA following impoundment of the river as part of the McClellan–Kerr Arkansas River Navigation System. We used a combination of Landsat satellite data (30 m resolution) from 1984-2016 and the European Commission Joint Research Center’s (JRC) Global Surface Water dataset (GSW) to assess changes in water availability by aquatic habitat category and river pool in the Arkansas River system. Analysis was completed using Google Earth Engine, with code available in this repository. We also …
Aquatic Habitat Changes Along The Arkansas River (Supporting Data For Analysis),
2020
Mississippi State University
Aquatic Habitat Changes Along The Arkansas River (Supporting Data For Analysis), Jonathan Spurgeon, Mike Rhodes, Wes Neal, Kristine Evans
CFR Publications
The associated code and data represent a second set of supporting information for an assessment of large-scale changes in aquatic habitats within the varying pools of the Arkansas River, Arkansas, USA following impoundment of the river as part of the McClellan–Kerr Arkansas River Navigation System. We used a combination of Landsat satellite data (30 m resolution) from 1984-2016 and the European Commission Joint Research Center’s (JRC) Global Surface Water dataset (GSW) to assess changes in water availability by aquatic habitat category and river pool in the Arkansas River system. Here we provide compiled .csv files of Arkansas River gauge data, …
Species Distribution Models To Inform At-Risk Species Status Assessments In The Southeastern Us,
2020
Mississippi State University
Species Distribution Models To Inform At-Risk Species Status Assessments In The Southeastern Us, Carlos Ramirez-Reyes, Mona Nazeri, Garrett Street, Francisco Vilella, D. Todd Jones-Farrand, Kristine O. Evans
CFR Publications
The USFWS is working collaboratively with State Wildlife Agencies, Universities, Non-profits and others in the southeast to address the National Listing Workplan. The USFWS needs up-to-date information on current status and the likely impact of future changes to develop Species Status Assessments (SSAs), which help inform listing decisions. States, Universities and other partners are providing species expertise, location data, analytical support and logistical support (e.g. surveys). However, a significant knowledge gap remains in understanding potential species distributions, from which status surveys can be more strategically implemented. This project provides a bridge between species location information and the SSAs by developing …
Beyond A Mapping Exercise: Inclusion Of Aboriginal Traditional Ecological Knowledge In Parks And Protected Areas Management,
2020
Wilfrid Laurier University
Beyond A Mapping Exercise: Inclusion Of Aboriginal Traditional Ecological Knowledge In Parks And Protected Areas Management, David Cook
Theses and Dissertations (Comprehensive)
This paper examines current approaches for Parks and Protected Areas (PPA) managers in incorporating Aboriginal Traditional and Ecological Knowledge (ATEK) into their management plans. This paper focuses on two case-studies. They are Nahanni National Park and Reserve in the Dehcho region of the Northwest Territories, and the Whitefeather Forest Protected Area in the Pikangikum First Nations Traditional Territory in Ontario. They were chosen because of their unique approaches to include Aboriginal communities in the planning process and their designation as UNESCO World Heritage sites. The broader indigenous involvement policies of both Parks Canada and Ontario Parks are examined using academic …
The Role Of Fire And A Fire-Free Interval In The Restoration Of Upland Oak Communities On The Cumberland Plateau, Kentucky,
2020
University of Kentucky
The Role Of Fire And A Fire-Free Interval In The Restoration Of Upland Oak Communities On The Cumberland Plateau, Kentucky, Jordan Winkenbach
Theses and Dissertations--Forestry and Natural Resources
The decline of upland oak (Quercus spp.) communities in our eastern forests has been attributed to the loss of periodic disturbance after decades of fire suppression. As land managers have begun to reintroduce fire, effects on oak regeneration and species composition have varied widely, making it apparent that our understanding of how fire can aid in oak forest management needs refinement. Restoring upland oak communities requires decreasing stand density and opening of the canopy to release shade-intolerant oaks in the understory. This necessitates an extended fire-free interval to allow these oaks to be recruited into larger size classes and …
Long-Term Effects Of Crop-Tree Release On The Growth And Quality Of Upland White Oak Stands,
2020
University of Kentucky
Long-Term Effects Of Crop-Tree Release On The Growth And Quality Of Upland White Oak Stands, Philip Jay Vogel
Theses and Dissertations--Forestry and Natural Resources
The alteration of historical disturbance regimes, forest parcelization, and varying goals among landowners all present challenges to oak management in the eastern U.S. Foresters and landowners need tools to promote oak sustainability that are applicable on small forestland holdings and within complex management plans. From this perspective, this research evaluates a crop-tree release study installed in southeastern Kentucky in 1983. The experiment includes four, 2-acre replications of three treatment levels: 20 crop-trees per acre, 34 crop-trees per acre, and a control treatment in which crop-trees were selected but not released. Half-acre measurement plots were installed at the outset of the …
