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Articles 1 - 19 of 19
Full-Text Articles in Forest Sciences
Competition And Herbivory Influence The Survival, Growth, And Physiology Of Native Tree Seedlings In The Kentucky Inner Bluegrass Savanna-Woodland, James D. Shaffer
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 …
Genome-Wide Snp Identification In Fraxinus Linking Genetic Characteristics To Tolerance Of Agrilus Planipennis, Cecelia E. Hale, Mark A. Jordan, Gloria Iriarte, Kirk Broders, Andrew J. Storer, Vamsi J. Nalam, Jordan M. Marshall
Genome-Wide Snp Identification In Fraxinus Linking Genetic Characteristics To Tolerance Of Agrilus Planipennis, Cecelia E. Hale, Mark A. Jordan, Gloria Iriarte, Kirk Broders, Andrew J. Storer, Vamsi J. Nalam, Jordan M. Marshall
Michigan Tech Publications
Ash (Fraxinus spp.) is one of the most widely distributed tree genera in North America. Populations of ash in the United States and Canada have been decimated by the introduced pest Agrilus planipennis (Coleoptera: Buprestidae; emerald ash borer), having negative impacts on both forest ecosystems and economic interests. The majority of trees succumb to attack by A. planipennis, but some trees have been found to be tolerant to infestation despite years of exposure. Restriction site-associated DNA (RAD) sequencing was used to sequence ash individuals, both tolerant and susceptible to A. planipennis attack, in order to identify single nucleotide polymorphism (SNP) …
Effects Of A Regenerating Matrix On The Survival Of Birds In Tropical Forest Fragments, Jared D. Wolfe, Philip C. Stouffer, Richard O. Bierregaard Jr., David A, Luther, Thomas E. Lovejoy
Effects Of A Regenerating Matrix On The Survival Of Birds In Tropical Forest Fragments, Jared D. Wolfe, Philip C. Stouffer, Richard O. Bierregaard Jr., David A, Luther, Thomas E. Lovejoy
Michigan Tech Publications
Background
Vast areas of lowland neotropical forest have regenerated after initially being cleared for agricultural purposes. The ecological value of regenerating second growth to forest-dwelling birds may largely depend on the age of the forest, associated vegetative structure, and when it is capable of sustaining avian demographics similar to those found in pristine forest.
Methods
To determine the influence of second growth age on bird demography, we estimated the annual survival of six central Amazonian bird species residing in pristine forest, a single 100 and a single 10 ha forest fragment, taking into consideration age of the surrounding matrix (i.e. …
Surface And Subsurface Tillage Effects On Mine Soil Properties And Vegetative Response, H. Z. Angel, Jeremy Stovall, Hans Michael Williams, Kenneth W. Farrish, Brian P. Oswald, J. L. Young
Surface And Subsurface Tillage Effects On Mine Soil Properties And Vegetative Response, H. Z. Angel, Jeremy Stovall, Hans Michael Williams, Kenneth W. Farrish, Brian P. Oswald, J. L. Young
Faculty Publications
Soil compaction is an important concern for surface mine operations that require heavy equipment for land reclamation. Excessive use of rubber-tired equipment, such as scraper pans, may cause mine soil compaction and hinder the success of revegetation efforts. However, information is limited on management strategies for ameliorating the potential compacting effects of scraper pans, particularly during site preparation for loblolly pine (Pinus taeda L.) plantations. Three forms of tillage and one control were replicated five times on surface mined land in the west Gulf Coastal Plain: no tillage (NT), disking (D), single-ripping + disking (R+D), and cross-ripping + disking …
Selecting Habitat To What Purpose? The Advantage Of Exploring The Habitat-Fitness Relationship, Alessia Uboni, Douglas W. Smith, Daniel R. Stahler, John A. Vucetich
Selecting Habitat To What Purpose? The Advantage Of Exploring The Habitat-Fitness Relationship, Alessia Uboni, Douglas W. Smith, Daniel R. Stahler, John A. Vucetich
Michigan Tech Publications
Measures of reproductive success have been recognized in many fields as essential tools to assess the status of populations, species, and communities. However, difficulties in gathering data on reproductive success often prevent researchers from taking advantage of the information offered by those measures. For example, most of habitat selection studies do not include reproductive success in their analysis even though doing so would highly improve our understanding of the habitat selection process. In our study, we aimed to assess to what extent habitat selection choices made by adult individuals are directed to increase their annual reproductive success. We tested this …
Seasonal Survival Of Adult Female Mottled Ducks, Jena A. Moon, David A. Haukos, Warren C. Conway
Seasonal Survival Of Adult Female Mottled Ducks, Jena A. Moon, David A. Haukos, Warren C. Conway
Faculty Publications
The mottled duck (Anas fulgivula) is a non‐migratory duck dependent on coastal habitats to meet all of its life cycle requirements in the Western Gulf Coast (WGC) of Texas and Louisiana, USA. This population of mottled ducks has experienced a moderate decline during the past 2 decades. Adult survival has been identified as an important factor influencing population demography. Previous work based on band‐recovery data has provided only annual estimates of survival. We assessed seasonal patterns of female mottled duck survival from 2009 to 2012 using individuals marked with satellite platform transmitter terminals (PTTs). We used temperature and …
Survival And Cause-Specific Mortality Of A Southeastern Kentucky Deer Population, Caleb Anderson Haymes
Survival And Cause-Specific Mortality Of A Southeastern Kentucky Deer Population, Caleb Anderson Haymes
Theses and Dissertations--Forestry and Natural Resources
White-tailed deer are one of the most sought after game species in Kentucky. While much of the Commonwealth boasts high deer populations, those in southeast Kentucky are viewed as relatively low compared to other regions, even after a decade of restrictive doe harvest and multiple years of population supplementation via translocation. We studied survival and cause specific mortality of a local population of deer near the Redbird District of the Daniel Boone National Forest in Clay and Leslie County, Kentucky from January 2014 - January 2017. We estimated female annual survival at 0.89 (CI: 0.88-0.87), with an overall 3-year survival …
Generating Best Management Practices For Avian Conservation In A Land-Sparing Agriculture System, And The Habitat-Specific Survival Of A Priority Migrant, Jeffrey D. Ritterson
Generating Best Management Practices For Avian Conservation In A Land-Sparing Agriculture System, And The Habitat-Specific Survival Of A Priority Migrant, Jeffrey D. Ritterson
Masters Theses
A large amount of the world’s biodiversity is located in a disproportionately small amount of area, namely the tropics. Many of these areas are experiencing rapid landscape changes, mainly in the form of deforestation for agricultural practices. Current conservation efforts are focused on agricultural areas and their ability to provide habitat. The conservation value of a novel land-sparing agroforestry system, known as Integrated Open Canopy (IOC), was recently demonstrated on the study site when applied to coffee. IOC coffee supports forest species that are uncommon or absent in shade grown coffee. I generated best management practices for IOC farms relative …
Impacts Of Logging And Prescribed Burning In Longleaf Pine Forests Managed Under Uneven-Aged Silviculture, Ferhat Kara, Edward Francis Loewenstein
Impacts Of Logging And Prescribed Burning In Longleaf Pine Forests Managed Under Uneven-Aged Silviculture, Ferhat Kara, Edward Francis Loewenstein
Turkish Journal of Agriculture and Forestry
The longleaf pine (Pinus palustris Mill.) ecosystem has historically been very important in the southeastern United States due to its extensive area and high biodiversity. Successful regeneration of longleaf pine forests requires an adequate number of well-distributed seedlings. Thus, mortality of longleaf pine seedlings during logging operations and prescribed burning appears to be important. Longleaf forests have been commonly managed using even-aged silvicultural methods, but, recently, interest in the use of uneven-aged (UEA) methods has increased in these forests. Research on the impact of UEA logging in longleaf forests is limited. In addition, the influence of overstory density on the …
Shortleaf Pine Sprout Production Capability In Response To Disturbances, David Charles Clabo
Shortleaf Pine Sprout Production Capability In Response To Disturbances, David Charles Clabo
Masters Theses
Shortleaf pine (Pinus echinata Mill.) seedlings are capable of sprouting and continuing growth after the stem is killed. The sprouting ability of shortleaf pine could be used to favor the species silviculturally after disturbance. Information is limited on shortleaf pine seedling sprouting after burning and clipping at different periods of the growing season and the effects of these treatments during their first three years after outplanting. Survival, seedling growth, and sprout production of shortleaf pine were evaluated after burning and clipping. The research was conducted on one, two, and three-year-old seedlings on an above average productivity site on the …
Characterization For Drought Resistance At Early Stages Of Wheat Genotypes Based On Survival, Coleoptile Length, And Seedling Vigor, Ali̇ Öztürk, Si̇nan Bayram, Kami̇l Hali̇loğlu, Murat Aydin, Özcan Çağlar, Sancar Bulut
Characterization For Drought Resistance At Early Stages Of Wheat Genotypes Based On Survival, Coleoptile Length, And Seedling Vigor, Ali̇ Öztürk, Si̇nan Bayram, Kami̇l Hali̇loğlu, Murat Aydin, Özcan Çağlar, Sancar Bulut
Turkish Journal of Agriculture and Forestry
In order to develop genotypes having a stable higher yield, it is necessary to characterize genetic resources based on drought adaptation, determine the suitable genotypes, and use them in breeding programs. This study was carried out in greenhouses, plant growth chambers, and research farms of the Faculty of Agriculture at Atatürk University. A total of 64 certified and local bread wheat genotypes were used to test survival after drought, coleoptile length, and seedling vigor. There were significant differences with respect to the selection parameters in this study. Seedling survival ranged from 18.5% to 51.1% and coleoptile lengths were 3974 mm. …
In Vitro Storage Of Some Pear Genotypes With The Minimal Growth Technique, Maqsood Ahmed, Muhammad Akbar Anjum
In Vitro Storage Of Some Pear Genotypes With The Minimal Growth Technique, Maqsood Ahmed, Muhammad Akbar Anjum
Turkish Journal of Agriculture and Forestry
Shoot cultures of 9 pear genotypes collected from different areas of Azad Jammu and Kashmir (northern Pakistan) were maintained on MS medium supplemented with 30 g L^{-1} of sucrose + 7 g L^{-1} of agar + 1 mg L^{-1} of BAP. For in vitro preservation shoot tips were excised from these cultures and transferred onto different media, i.e. full strength, ¼ strength, ½ strength MS medium, and full strength MS medium containing 2.5% or 3.5% (w/v) mannitol. The cultures were assessed for their survival after storage periods of 3, 6, 9, and 12 months. To test the regenerability of the …
Slides: Delta Overview, Leo Winternitz
Slides: Delta Overview, Leo Winternitz
Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)
Presenter: Leo Winternitz, The Nature Conservancy, California Water Program, Sacramento, CA
17 slides
Slides: Dam Building And Removal On The Elwha: A Prototype Of Adaptive Mismanagement And A Tribal Opportunity, William H. Rodgers, Jr.
Slides: Dam Building And Removal On The Elwha: A Prototype Of Adaptive Mismanagement And A Tribal Opportunity, William H. Rodgers, Jr.
The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)
Presenter: William H. Rodgers, Jr., Stimson Bullitt Professor of Environmental Law, University of Washington School of Law
77 slides
Agenda: The Future Of Natural Resources Law And Policy, University Of Colorado Boulder. Natural Resources Law Center, Rocky Mountain Mineral Law Foundation
Agenda: The Future Of Natural Resources Law And Policy, University Of Colorado Boulder. Natural Resources Law Center, Rocky Mountain Mineral Law Foundation
The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)
The Natural Resources Law Center's 25th Anniversary Conference and Natural Resources Law Teachers 14th Biennial Institute provided an opportunity for some of the best natural resources lawyers to discuss future trends in the field. The conference focused on the larger, cross-cutting issues affecting natural resources policy. Initial discussions concerned the declining role of scientific resource management due to the increased inclusion of economic-cost benefit analysis and public participation in the decision-making process. The effectiveness of this approach was questioned particularly in the case of non-market goods such as the polar bear. Other participants promoted the importance of public participation and …
Low Temperature Induces Two Growth-Arrested Stages And Change Of Secondary Metabolites In Bursaphelenchus Xylophilus, L. L. Zhao, W. Wei, David L. Kulhavy, Xing Yao Zhang, Jiang Hua Sun
Low Temperature Induces Two Growth-Arrested Stages And Change Of Secondary Metabolites In Bursaphelenchus Xylophilus, L. L. Zhao, W. Wei, David L. Kulhavy, Xing Yao Zhang, Jiang Hua Sun
Faculty Publications
The third-stage dispersal juvenile (JIII) is the stage for survival and dispersal in the winter of the pine wood nematode,
Bursaphelenchus xylophilus. Through investigations at different temperatures, we found two kinds of growth-arrested development, including the adult longevity extension and JIII formation induced by low temperature. They showed similar characters: densely packed lipid droplets and extended longevity. We considered that there were four stages in the formation of growth-arrested stages: induction, growth-arrested pathway, growth-arrested development and cold-tolerance duration. Moreover, at 4◦C there were significant changes in secondary metabolites, which may be related to signal communication and metabolism associated with …
Comparison Of Rooting Capabilities Of Turkish Tea Clones, Eyyüp Altindal, Fi̇kri̇ Balta
Comparison Of Rooting Capabilities Of Turkish Tea Clones, Eyyüp Altindal, Fi̇kri̇ Balta
Turkish Journal of Agriculture and Forestry
In this study, single leaf cuttings of 10 Turkish tea (Camellia sinensis) clones Hamzabey-1, Ardeşen-1, Fener-3, Hayrat-1, Çiftekavak-1, Muradiye-10, Tuğlalı-10, Gündoğdu-3, Kömürcüler-1 and Derepazarı-7 were rooted under greenhouse conditions at seven different collection times without using any plant hormones. The cuttings were collected on 28 August, 4 September, 11 September, 19 September, 25 September, 4 October and 10 October. Rooted plants were removed from rooting medium in mid-May. Plant survival, root dry weight, shoot dry weight and shooting percentage were recorded depending on the tea clones and collection times. The highest survival percentage by mean values of collection times was …
Restoration Of Aspen-Dominated Ecosystems In The Lake States, Douglas M. Stone, John D. Elioff, Donald V. Potter, Donald B. Peterson, Robert Wagner
Restoration Of Aspen-Dominated Ecosystems In The Lake States, Douglas M. Stone, John D. Elioff, Donald V. Potter, Donald B. Peterson, Robert Wagner
Aspen Bibliography
A reserve tree method (RTM) of harvesting was installed in six 70 to 75 year old aspen dominated stands to determine if retaining 10 to 15 dominant aspen per acre would decrease sucker density to facilitate restoration of a conifer component. A reserve shelterwood cut was applied to three additional stands to evaluate performance of white pine planted under 50% crown cover. After the first full growing season following harvest, 96% of the RTM harvested areas were stocked; sucker density averaged 27000 per acre versus 38.2 k per acre on a clearcut control, 41% greater. Basal diameter of dominant suckers …
Effects Of Chemical Weed Control And Seedling Planting Depth On Survival And Growth Of Aspen, G.L. Reighard, G. Howe, J.W. Hanover
Effects Of Chemical Weed Control And Seedling Planting Depth On Survival And Growth Of Aspen, G.L. Reighard, G. Howe, J.W. Hanover
Aspen Bibliography
No abstract provided.