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2015

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Articles 1 - 30 of 326

Full-Text Articles in Forest Sciences

Smokejumper Obituary: Johnshoy, Ronald J. (Nifc 1988), National Smokejumper Association Dec 2015

Smokejumper Obituary: Johnshoy, Ronald J. (Nifc 1988), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


The Integration Of African Americans In The Civilian Conservation Corps In Massachusetts, Caitlin E. Pinkham Dec 2015

The Integration Of African Americans In The Civilian Conservation Corps In Massachusetts, Caitlin E. Pinkham

Graduate Masters Theses

The Civilian Conservation Corps employed young white and black men between the ages of eighteen and twenty-five. In 1935 Robert Fechner, the Director of the Civilian Conservation Corps, ordered the segregation of Corps camps across the country. Massachusetts’ camps remained integrated due in large part to low funding and a small African American population. The experiences of Massachusetts’ African American population present a new general narrative of the Civilian Conservation Corps. The Federal government imposed a three percent African American quota, ensuring that African Americans participated in Massachusetts as the Civilian Conservation Corps expanded. This quota represents a Federal acknowledgement …


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 Dec 2015

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 …


The Role Of The State, Multinational Oil Companies, International Law & The International Community: Intersection Of Human Rights & Environmental Degradation Climate Change In The 21st Century Caused By Traditional Extractive Practices, The Amazon Rainforest, Indigenous People And Universal Jurisdiction To Resolve The Accountability Issue, Marcela Cabrera Luna Dec 2015

The Role Of The State, Multinational Oil Companies, International Law & The International Community: Intersection Of Human Rights & Environmental Degradation Climate Change In The 21st Century Caused By Traditional Extractive Practices, The Amazon Rainforest, Indigenous People And Universal Jurisdiction To Resolve The Accountability Issue, Marcela Cabrera Luna

Master's Theses

Local, national and international conventions that protect indigenous sovereignty and their territories, where many of the resources are extracted from by multinational corporations (MNCs) particularly oil, the number one commodity of the world and cause of climate change, continue to be jeopardized because of the lack of a clear international legal framework that can protect them and potentially hold multinationals accountable for their actions. These practices are causing not only environmental issues to the indigenous and surrounding communities, but climate change is in fact, the real human rights issue of the 21st century and it affects everyone. By using …


Restoration Of A Wet Longleaf Pine (Pinus Palustris) Savanna In Southeast Louisiana: Burning Toward Reference Conditions, Alex K. Entrup Dec 2015

Restoration Of A Wet Longleaf Pine (Pinus Palustris) Savanna In Southeast Louisiana: Burning Toward Reference Conditions, Alex K. Entrup

LSU New Orleans Theses and Dissertations

This study quantifies the changes in vegetation composition and structure of a fire-excluded Pinus palustris (longleaf pine) wetland savanna restoration site in southeastern in comparison to a proximate contemporary reference site. The restoration site was invaded by hardwood species and off-site pines, and never underwent extensive soil disturbance. The restoration treatments involved logging across portions of the site and the reintroduction of fire across the entire site. All species present in 10m2 quadrats were recorded prior to treatment and throughout the 17 year study at reference and treatment sites. The community composition of both logged and unlogged sites converged …


Smokejumper Obituary: Pond, Mitchell L. (Grangeville 1990), National Smokejumper Association Dec 2015

Smokejumper Obituary: Pond, Mitchell L. (Grangeville 1990), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Wildland Fire Deficit And Surplus In The Western United States, 1984-2012, Sean A. Parks, Carol Miller, Marc-Andrè Parisien, Lisa M. Holsinger, Solomon Z. Dobrowski, John Abatzoglou Dec 2015

Wildland Fire Deficit And Surplus In The Western United States, 1984-2012, Sean A. Parks, Carol Miller, Marc-Andrè Parisien, Lisa M. Holsinger, Solomon Z. Dobrowski, John Abatzoglou

Forest Management Faculty Publications

Wildland fire is an important disturbance agent in the western US and globally. However, the natural role of fire has been disrupted in many regions due to the influence of human activities, which have the potential to either exclude or promote fire, resulting in a "fire deficit" or "fire surplus," respectively. In this study, we developed a model of expected area burned for the western US as a function of climate from 1984 to 2012. We then quantified departures from expected area burned to identify geographic regions with fire deficit or surplus. We developed our model of area burned as …


Smokejumper Obituary: Roberts, Ralph B. (Missoula 1955), National Smokejumper Association Dec 2015

Smokejumper Obituary: Roberts, Ralph B. (Missoula 1955), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Fleming, John L. (Missoula 1949), National Smokejumper Association Dec 2015

Smokejumper Obituary: Fleming, John L. (Missoula 1949), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Cramer, James L. (Cave Junction 1958), National Smokejumper Association Dec 2015

Smokejumper Obituary: Cramer, James L. (Cave Junction 1958), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Brunk, James R. (Missoula 1945), National Smokejumper Association Dec 2015

Smokejumper Obituary: Brunk, James R. (Missoula 1945), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Yergenson, Dallas (Mccall 1954), National Smokejumper Association Dec 2015

Smokejumper Obituary: Yergenson, Dallas (Mccall 1954), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Centerville Slough Project, Susie Van Kirk Dec 2015

Centerville Slough Project, Susie Van Kirk

Susie Van Kirk Papers

An extensive cultural resources document for the Eel River Estuary Preserve was prepared in 2014 to identify resources within the initial project area. With new project proposals and an expanded Area of Potential Effect (APE), several additional structures were surveyed. This addendum looked at three barns and a house, none of which will be affected by proposed projects. They were surveyed because they fall within the expanded APE.

Some of the research conducted for the 2014 historic resources document was applicable to the addendum, including land ownerships and newspaper references. For the present report, additional research was conducted in the …


Why Add Edible And Floral Plants To Riparian Forest Buffers? Dec 2015

Why Add Edible And Floral Plants To Riparian Forest Buffers?

Working Trees (USDA-NAC)

Why add edible and floral plants to riparian forest buffers?

Multifunctional riparian forest buffers (MRFBs) offer the opportunity to produce perennial crops of native fruits and nuts, as well as floral trees and shrubs.


Research Notes Lower Prairie Creek Project Redwood National Park, Susie Van Kirk Dec 2015

Research Notes Lower Prairie Creek Project Redwood National Park, Susie Van Kirk

Susie Van Kirk Papers

Project Description: to conduct Phase 1 of a narrative history project for the Lower Prairie Creek Watershed, funded by Save the Redwoods League. Phase1 of this project will be to compile reference materials, sources, conduct scoping with NPS staff and other local stakeholders to develop historical research themes that will be needed for a future narrative history of the Lower Prairie Creek Watershed. It will result in a detailed chapter outline to be submitted to NPS.


Demography And Disease Of The Rare Shrub Buckleya Distichophylla (Santalaceae) In Northeastern Tennessee, William Seth Ratliff Dec 2015

Demography And Disease Of The Rare Shrub Buckleya Distichophylla (Santalaceae) In Northeastern Tennessee, William Seth Ratliff

Undergraduate Honors Theses

Piratebush (Buckleya distichophylla (Nutt.) Torr.) is a rare, hemiparasitic shrub with the only extant populations in western North Carolina, northeastern Tennessee, and southwestern Virginia. The preferred natural hosts of piratebush, Carolina and eastern hemlocks, have seen sharp declines over the last decade due to the invasive hemlock woolly adelgid. Virginia pine, another important host of piratebush, is also susceptible to disease, specifically Cronartium appalachianum, a rust fungus for which piratebush is the secondary host. This study described and analyzed current demographic parameters of three Tennessee piratebush populations. Additionally, spatial patterns of disease and demographic characters were analyzed. These …


Mycorrhizal Roots In A Temperate Forest Take Up Organic Nitrogen From 13c- And 15n-Labeled Organic Matter, Matthew A. Vadeboncoeur, Andrew P. Ouimette, Erik A. Hobbie Dec 2015

Mycorrhizal Roots In A Temperate Forest Take Up Organic Nitrogen From 13c- And 15n-Labeled Organic Matter, Matthew A. Vadeboncoeur, Andrew P. Ouimette, Erik A. Hobbie

All Materials

Background and Aims

The importance of the uptake of nitrogen in organic form by plants and mycorrhizal fungi has been demonstrated in various ecosystems including temperate forests. However, in previous experiments, isotopically labeled amino acids were often added to soils in concentrations that may be higher than those normally available to roots and mycorrhizal hyphae in situ, and these high concentrations could contribute to exaggerated uptake.

Methods

We used an experimental approach in which we added 13C-labeled and 15N-labeled whole cells to root-ingrowth cores, allowing proteolytic enzymes to release labeled organic nitrogen at a natural rate, as …


Southeastern Monochamus And Their Interactions With Healthy Shortleaf Pine Trees And Associated Ips Grandicollis Bark Beetles, Matthew Walker Ethington Dec 2015

Southeastern Monochamus And Their Interactions With Healthy Shortleaf Pine Trees And Associated Ips Grandicollis Bark Beetles, Matthew Walker Ethington

Graduate Theses and Dissertations

Insects in the genus Monochamus are medium to large-sized, wood-boring beetles whose primary hosts in the Northern Hemisphere are pine trees. These beetles interact with both conifer hosts and associated insects throughout their life history. Past research has demonstrated that Monochamus are saprophagic, but recent findings show that they may colonize healthy pine trees. To determine if southeastern Monochamus could colonize healthy pines, adult Monochamus were attracted to healthy shortleaf pine trees from May to September, 2014, using host volatiles, Ips bark beetle kairomones, and congeneric pheromones. Subsequent development of oviposited eggs from 18 host trees was monitored. The results …


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 Dec 2015

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. …


Chinese Tallow Invasion In Maritime Forests: Understand Invasion Mechanism And Develop Ecologically-Based Management, Lauren Susan Pile Dec 2015

Chinese Tallow Invasion In Maritime Forests: Understand Invasion Mechanism And Develop Ecologically-Based Management, Lauren Susan Pile

All Dissertations

Invasion by highly aggressive, non-native, invasive plants is a significant threat to management and conservation priorities as these plants can transform ecosystem functions and processes. In this study, I investigated the non-native, invasive tree, Chinese tallow (Triadica sebifera (L.) Small) in the maritime forests of Parris Island, South Carolina. I studied the role of land-use history and modern forest disturbance in facilitating the invasion of Chinese tallow. I found that stands previously cleared for agriculture and reforested with slash pine (Pinus elliottii Englem.) since the 1970s had significantly more Chinese tallow stems than stands that remained forested since …


Recombinant Dna Modification Of Gibberellin Metabolism Alters Growth Rate And Biomass Allocation In Populus, Haiwei Lu, Venkatesh Viswanath, Cathleen Ma, Elizabeth Etherington, Palitha Dharmawardhana, Olga Shevchenko, Steven H. Strauss, David W. Pearce, Stewart B. Rood, Victor Busov Nov 2015

Recombinant Dna Modification Of Gibberellin Metabolism Alters Growth Rate And Biomass Allocation In Populus, Haiwei Lu, Venkatesh Viswanath, Cathleen Ma, Elizabeth Etherington, Palitha Dharmawardhana, Olga Shevchenko, Steven H. Strauss, David W. Pearce, Stewart B. Rood, Victor Busov

Michigan Tech Publications, Part 1

Overexpression of genes that modify gibberellin (GA) metabolism and signaling have been previously shown to produce trees with improved biomass production but highly disturbed development. To examine if more subtle types of genetic modification of GA could improve growth rate and modify tree architecture, we transformed a model poplar genotype (Populus tremula × P. alba) with eight genes, including two cisgenes (intact copies of native genes), four intragenes (modified copies of native genes), and two transgenes (from sexually incompatible species), and studied their effects under greenhouse and field conditions. In the greenhouse, four out of the eight tested genes produced …


Smokejumper Obituary: Blowers, James E. (Missoula 1946), National Smokejumper Association Nov 2015

Smokejumper Obituary: Blowers, James E. (Missoula 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Wiltse, Stephen H. (Missoula 1959), National Smokejumper Association Nov 2015

Smokejumper Obituary: Wiltse, Stephen H. (Missoula 1959), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Martin, Robert L. (Missoula 1941), National Smokejumper Association Nov 2015

Smokejumper Obituary: Martin, Robert L. (Missoula 1941), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Ward, James O. (Missoula 1946), National Smokejumper Association Nov 2015

Smokejumper Obituary: Ward, James O. (Missoula 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Korbel Sawmill Report, Susie Van Kirk Nov 2015

Korbel Sawmill Report, Susie Van Kirk

Susie Van Kirk Papers

No abstract provided.


Spatial Aspects Of Tree Mortality Strongly Differ Between Young And Old-Growth Forests, Andrew J. Larson, James A. Lutz, Daniel C. Donato, James A. Freund, Mark E. Swanson, Janneke Hillrislambers, Douglas G. Sprugel, Jerry F. Franklin Nov 2015

Spatial Aspects Of Tree Mortality Strongly Differ Between Young And Old-Growth Forests, Andrew J. Larson, James A. Lutz, Daniel C. Donato, James A. Freund, Mark E. Swanson, Janneke Hillrislambers, Douglas G. Sprugel, Jerry F. Franklin

Forest Management Faculty Publications

Rates and spatial patterns of tree mortality are predicted to change during forest structural development. In young forests, mortality should be primarily density dependent due to competition for light, leading to an increasingly spatially uniform pattern of surviving trees. In contrast, mortality in old-growth forests should be primarily caused by contagious and spatially auto-correlated agents (e.g., insects, wind), causing spatial aggregation of surviving trees to increase through time. We tested these predictions by contrasting a three-decade record of tree mortality from replicated mapped permanent plots located in young (<60-year-old) and old-growth (>300-year-old) Abies amabilis forests. Trees in young forests died at a …


Ua24 Mcicsl Newsletter - November 2015, Shannon R. Trimboli Education Coordinator Nov 2015

Ua24 Mcicsl Newsletter - November 2015, Shannon R. Trimboli Education Coordinator

MCICSL Newsletter

This issue includes the following:

Partners Recognized for Water Quality Research at Mammoth Cave National Park and Increasing Diversity in the Geosciences

Texas A&M – Galveston Students Participate in Citizen Science at Mammoth Cave National Park

Northern Kentucky University and the Mammoth Cave International Center for Science and Learning to Host Partners in the Parks Program at Mammoth Cave National Park

as well as education and research highlights, and MCICSL symposium information


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 Nov 2015

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 …


Timber Talk, Vol. 53, No .4, November 2015 Nov 2015

Timber Talk, Vol. 53, No .4, November 2015

Timber Talk: Nebraska Forest Industry Newsletter

In This Issue

Lumber Market News ...........................1

Hardwood Lumber Price Trends—Green..................................2

Hardwood Lumber Price Trends—Kiln Dried...........................2

Sun-dried Lumber.................................3

NFS Forest Products Program...............4

Milling Railroad Ties in Nebraska........4

A Closer Look at Edgers........................5

Nebraska Forest Industry Spotlight......7

The Trading Post....................................8