Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- American chestnut (1)
- Bat (1)
- Big-Eared (1)
- Bioenergy market (1)
- Carbon market (1)
-
- Castanea dentata (1)
- Chestnut blight (1)
- Climate change (1)
- Corynorhinus rafinesquii (1)
- Diet (1)
- FIA (1)
- Forest inventory and analysis (1)
- Hartman model (1)
- Herbivory (1)
- Kentucky (1)
- Land expectation value (1)
- Mined land reforestation (1)
- Plant invasions (1)
- Plant–soil feedbacks (1)
- Prey (1)
- Pythium (1)
- Rafinesque (1)
- Sensitivity analysis (1)
- Size (1)
- Soil biota (1)
- Spatially-explicit model (1)
- Tree distribution (1)
- Tree shelters (1)
- Woody biomass utilization (1)
Articles 1 - 6 of 6
Full-Text Articles in Forest Sciences
Consequences Of Shifts In Abundance And Distribution Of American Chestnut For Restoration Of A Foundation Forest Tree, Harmony J. Dalgleish, Charles Dana Nelson, John A. Scrivani, Douglass F. Jacobs
Consequences Of Shifts In Abundance And Distribution Of American Chestnut For Restoration Of A Foundation Forest Tree, Harmony J. Dalgleish, Charles Dana Nelson, John A. Scrivani, Douglass F. Jacobs
Forestry and Natural Resources Faculty Publications
Restoration of foundation species, such as the American chestnut (Castanea dentata) that was devastated by an introduced fungus, can restore ecosystem function. Understanding both the current distribution as well as biogeographic patterns is important for restoration planning. We used United States Department of Agriculture Forest Service Forest Inventory and Analysis data to quantify the current density and distribution of C. dentata. We then review the literature concerning biogeographic patterns in C. dentata. Currently, 431 ± 30.2 million stems remain. The vast majority (360 ± 22 million) are sprouts < 2.5 cm dbh. Although this number is approximately 10% of the estimated pre-blight population, blight has caused a major shift in the size structure. The current-day population has a larger range, particularly west and north, likely due to human translocation. While climate change could facilitate northward expansion, limited seed reproduction makes this unlikely without assisted migration. Previous research demonstrates that the current, smaller population contains slightly higher genetic diversity than expected, although little information exists on biogeographic patterns in the genetics of adaptive traits. Our research provides a baseline characterization of the contemporary population of C. dentata, to enable monitoring stem densities …
Prey Size And Dietary Niche Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii), Luke E. Dodd, Michael J. Lacki, Joseph S. Johnson, Lynne K. Rieske
Prey Size And Dietary Niche Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii), Luke E. Dodd, Michael J. Lacki, Joseph S. Johnson, Lynne K. Rieske
Forestry and Natural Resources Faculty Publications
Bats in the genus Corynorhinus possess a suite of morphological characters that permit them to effectively use both gleaning and aerial-hawking foraging strategies to capture Lepidoptera. Consequently, they occupy a specialized feeding niche within North American bat assemblages and are of particular interest for dietary studies. We collected fecal pellets from a colony of C. rafinesquii (Rafinesque's Big-Eared Bat) at Mammoth Cave National Park during August–October 2011 and amplified cytochrome-c oxidase subunit 1 fragments of prey from these pellets. We used the Barcode of Life Database to identify prey, and evaluated the size of prey species based on published values. …
Quantifying The Effects Of Biomass Market Conditions And Policy Incentives On Economically Feasible Sites To Establish Dedicated Energy Crops, Sandhya Nepal, Marco A. Contreras, George A. Stainback, John M. Lhotka
Quantifying The Effects Of Biomass Market Conditions And Policy Incentives On Economically Feasible Sites To Establish Dedicated Energy Crops, Sandhya Nepal, Marco A. Contreras, George A. Stainback, John M. Lhotka
Forestry and Natural Resources Faculty Publications
This study used a spatially-explicit model to identify the amount and spatial distribution of economically feasible sites for establishing dedicated energy crops under various market and policy scenarios. A sensitivity analysis was performed for a biomass market with different discount rates and biomass prices as well as policy scenarios including propriety tax exemption, carbon offset payments, and the inclusion of farmland for biomass production. The model was applied to a four-county study area in Kentucky representing conditions commonly found in the Ohio River Valley. Results showed that both biomass price and discount rate have a can strongly influence the amount …
Evaluating The Use Of Tree Shelters For Direct Seeding Of Castanea On A Surface Mine In Appalachia, Christopher Barton, Jarrod Miller, Kenton L. Sena, Patrick Angel, Michael French
Evaluating The Use Of Tree Shelters For Direct Seeding Of Castanea On A Surface Mine In Appalachia, Christopher Barton, Jarrod Miller, Kenton L. Sena, Patrick Angel, Michael French
Forestry and Natural Resources Faculty Publications
American chestnut (Castanea dentata), once a primary constituent of the eastern hardwood forest ecosystem, was nearly extirpated from the forest canopy by the accidental introduction of chestnut blight (Cryphonectria parasitica). An intensive breeding program has sought to breed blight resistance from Chinese chestnut into American chestnuts, while maintaining as much of the desirable American chestnut phenotypes as possible. Previous studies suggest that these blight resistant American chestnuts, termed “restoration chestnuts”, are capable of thriving on reclaimed surface mines. We direct seeded pure Chinese, pure American, and three backcross lines into brown sandstone minesoil on a mine …
Economic Impact Of Net Carbon Payments And Bioenergy Production In Fertilized And Non-Fertilized Loblolly Pine Plantations, Prativa Shrestha, George A. Stainback, Puneet Dwivedi
Economic Impact Of Net Carbon Payments And Bioenergy Production In Fertilized And Non-Fertilized Loblolly Pine Plantations, Prativa Shrestha, George A. Stainback, Puneet Dwivedi
Forestry and Natural Resources Faculty Publications
Sequestering carbon in forest stands and using woody bioenergy are two potential ways to utilize forests in mitigating emissions of greenhouse gases (GHGs). Such forestry related strategies are, however, greatly influenced by carbon and bioenergy markets. This study investigates the impact of both carbon and woody bioenergy markets on land expectation value (LEV) and rotation age of loblolly pine (Pinus taeda L.) forests in the southeastern United States for two scenarios—one with thinning and no fertilization and the other with thinning and fertilization. Economic analysis was conducted using a modified Hartman model. The amount of carbon dioxide (CO2 …
Virulence Of Oomycete Pathogens From Phragmites Australis-Invaded And Noninvaded Soils To Seedlings Of Wetland Plant Species, Ellen V. Crocker, Mary Ann Karp, Eric B. Nelson
Virulence Of Oomycete Pathogens From Phragmites Australis-Invaded And Noninvaded Soils To Seedlings Of Wetland Plant Species, Ellen V. Crocker, Mary Ann Karp, Eric B. Nelson
Forestry and Natural Resources Faculty Publications
Soil pathogens affect plant community structure and function through negative plant-soil feedbacks that may contribute to the invasiveness of non-native plant species. Our understanding of these pathogen-induced soil feedbacks has relied largely on observations of the collective impact of the soil biota on plant populations, with few observations of accompanying changes in populations of specific soil pathogens and their impacts on invasive and noninvasive species. As a result, the roles of specific soil pathogens in plant invasions remain unknown. In this study, we examine the diversity and virulence of soil oomycete pathogens in freshwater wetland soils invaded by non-native Phragmites …