Forest Management Commons^™

Population Genetics Of A Recent Range Expansion By The Southern Pine Beetle, Dendroctonus Frontalis, Into The Northeastern United States, Megan Stubbs

Honors Theses

Population genetics as a field of study aims to determine the genetic variation among individuals in a population, and differences among populations. Certain population genetic analyses can provide such information and be used to better understand the biological aspects to a species’ expansion beyond its native range. The southern pine beetle (SPB), Dendroctonus frontalis, has become an invasive pest to pine forests in northeastern United States with its recent range expansion. Nine microsatellite loci were first developed and then used in analyses. To determine what the genetic variation is among individuals in SPB populations across its entire range, including …

Modeling Species Distribution And Habitat Suitability Of American Ginseng (Panax Quinquefolius) In Virginia, Jacob D. J. Peters

Masters Theses, 2020-current

American ginseng (Panax quinquefolius) is a well-known and sought-after medicinal plant native to North America that is facing increased threat of extinction due to overharvesting, herbivory, and habitat loss. Species distribution and habitat suitability models may be valuable to landowners interested in sustainable harvest or to institutions interested in the conservation and restoration of the species. With unequal sampling efforts across a region of interest, it is likely that some locations with appropriate habitat may be misrepresented in model predictions. This study refined a state-derived species distribution model for ginseng through increased sampling effort across the Cumberland Plateau …

Shifting Public Perception: Climate Change Means Living With Fire And Smoke, Robert Froembling

Seattle Journal of Technology, Environmental, & Innovation Law

The urgency to prepare for the climate crisis has never been greater. We are currently living in the sixth mass extinction and the effects are only going to accelerate. We will inherit more wildfires, larger wildfires, and more frequent wildfires.

This piece is not meant to stoke fear in its readers or be depressing, but to shift public perception on what our future holds by evaluating the laws and science presented to us. This piece will look at regional and federal regulations and assess the increased rate of forest fires and the grave public health concerns from stagnant smoke specifically …

Smokejumper Obituary: Garner, Richard F. (Mccall 1956), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Tibbitts, Allen "A.B." (Mccall 1966), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Romey, Mark L. (Missoula 1975), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Effects Of Pine Litter Raking On Plant Community Composition And Soil Seed Banks In Longleaf Pine Savannas, Jordan Andrew Winter

Graduate Theses

Longleaf pine (Pinus palustris) savannas have been reduced to a small percentage of their original range in the southeastern United States. These savannas are fire-reliant and require frequent, low-intensity fires to maintain understory plant diversity. Currently, many landowners rake pine litter off the forest floor of longleaf pine savannas for subsequent sale in horticulture. Though raking is a common practice, little is known about the effects of raking on the understory plant community, the soil seed bank, or fire intensity. I conducted my research in two longleaf pine savanna sites where raking has occurred. At the McCain Forest Management Area …

A Comparative Taxonomic And Diversity Study Of Litter-Associated Fungi In Northwest Arkansas Forests, Rajaa Abdulrazzaq Abbas Al Aanbagi

Graduate Theses and Dissertations

Fungi are taxonomically the most species-rich group of organisms on the earth, ecologically occupy distinctive niches and interact with diverse other organisms throughout their biogeographic distributions and functionally play key roles through their various lifestyles. Plant litter, in particular, is a keystone component in ecosystems and provides heterogeneous microhabitats for the often overlooked litter-decomposing fungi and other organisms on the floor of temperate deciduous forests. Litter fungi involve indirect interactions with the plant, soil and whole food web network. However, the community structure and functions of litter-associated fungi as well as patterns of species richness distributed across various litter microhabitats …

Smokejumper Obituary: Reed, Linwood L. (Cave Junction 1956), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Whitaker, Lloyd E. (Redding 1966), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Extreme Fire As A Management Tool To Combat Regime Shifts In The Range Of The Endangered American Burying Beetle, Alison K. Ludwig, Daniel R. Uden, Dirac Twidwell

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

This study is focused on the population of federally-endangered American burying beetles in south-central Nebraska. It is focused on changes in land cover over time and at several levels of spatial scale, and how management efforts are impacting both the beetle and a changing landscape. Our findings are applicable to a large portion of the Great Plains, which is undergoing the same shift from grassland to woodland, and to areas where the beetle is still found.

Smokejumper Obituary: Filler, Merl C. (Mccall 1952), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Artificial Perches As A Technique For Enhancing Tropical Forest Restoration: A Case Study From The Dominican Republic, Spencer Schubert, Ally S. Lahey, Ashley R. Weisman, Eric L. Walters

College of Sciences Posters

Recovering secondary forests on degraded agricultural lands represents a promising opportunity to offset global carbon emissions as well as increasing local biodiversity and ecosystem services. In the insular tropical forests of the Caribbean, frugivorous birds are the primary seed dispersers for most native woody plants and have a large influence on regeneration dynamics during forest succession. In 2017, we initiated an experimental forest restoration program incorporating artificial perches on private farms within the Rio Yaque del Norte watershed in La Vega province, Dominican Republic. Five restoration plots (0.15–0.25 ha) were constructed in pastures near deforested streams. In each plot, 6-12 …

Smokejumper Magazine, April 2020, National Smokejumper Association

Smokejumper and Static Line Magazines

This issue of the National Smokejumper Association (NSA) Smokejumper Magazine contains the following articles: Message from the President; Fighting Fire in Tasmania; Wildfires and Global Warming: A Continuous Cycle of Destruction; Kooskia Days; NSA Scholarship Program Expanded-Take Advantage!; Moose Creek Memorial; Touching All Bases; West Yellowstone Airtanker Base Closure; Off the List; Pendleton Honors the Triple Nickles; Eric Schoenfeld Remembered; Odds and Ends; Alaska Cutters; Feeding the "Beast" with Fire, Money; North Cascades 2019 Reunion; The Run for the Top; National Smokejumper Reunion 2020 June 26-28, 2020 in Boise, Idaho; Sounding Off from the Editor; One Year After the Camp …

Smokejumper Obituary: Derry, Robert L. (Missoula 1943), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Mansisidor, Ramon J. "Ray" (Mccall 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Lundgren, Rob (Associate 0000), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Seed Size And Germination, Meredith Cobb, Michaela J. Woods, Ryan W. Mcewan

Five Rivers MetroParks Collaboration Data Archive

This dataset encompasses information related to predictors of seed germination from the species Carya laciniosa, Juglans cinerea, and Quercus rubra. Seed sizes were recorded prior to incubation in sand, vermiculite, or without media. Seeds were then germinated with time to germination recorded in this dataset.

Influence Of Forest-To-Silvopasture Conversion And Drought On Components Of Evapotranspiration, Adam P. Coble, Alexandra R. Contosta, Richard G. Smith, Nathan W. Siegert, Matthew A. Vadeboncoeur, Katie A. Jennings, Anthony J. Stewart, Heidi Asbjornsen

Natural Resources & the Environment

The northeastern U.S. is projected to experience more frequent short-term (1-2 month) droughts interspersed among larger precipitation events. Agroforestry practices such as silvopasture may mitigate these impacts of climate change while maintaining economic benefits of both agricultural and forestry practices. This study evaluated the effects of forest-to-silvopasture (i.e., 50% thinning) conversion on the components of evapotranspiration (transpiration, rainfall interception, and soil evaporation) during the growing season of 2016. The study coincided with a late-summer drought throughout the northeastern U.S., which allowed us to also evaluate the effects of forest-to-silvopasture conversion on drought responses of multiple tree species, including Pinus strobus, …

Determination Of Timeliness Cost Using Method Of Average Workability Robability Based On Reliability Function Of Farm Tractors, Mohammad Poozesh, Javad Tarighi

Emirates Journal for Engineering Research

There is an optimum time for implementing field operation of a crop in each region. If the operation were accomplished sooner or later, it might cause a reduction in yield quantity and quality that is named timeliness cost. The purpose of this study is to survey the timeliness cost of harvesting operation of sugar cane based on reliability function of MF285 tractors operating in Debal Khazaei Agro-Industry Co. in Khuzestan, a province of Iran. MF285 tractors have low reliability in Iran, and due to their low reliability have an uncertainty in implementation of farm operation, though it is not …