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Presenters & Abstracts: College of Natural Resources & Sciences
A Carbon Inventory: Where does HSU Stand?Presentation Year: 2018
- James LampingForestryUndergraduate Student
- Amanda DonaldsonForestryUndergraduate Student
In our study, an inventory of Humboldt State University's trees was conducted to better understand the current biomass and carbon the campus is sequestering. The goal of the study is to present HSU with an understanding of what trees sequester more carbon so they may make informed decisions on future tree planting projects.
A Comparative Study on Environmental Impact Assessment (EIA) Procedures and Legal Instruments: A Case Study from Sri Lanka and the United StatesPresentation Year: 2016
- Herath VidyaratneDepartment of Economics, NUI Galway, IrelandFaculty
- Buddhika MadurapperumaDepartment of Environmental Science and Management, Humboldt State UniversityFaculty
- Jessie AvitiaDepartment of Environmental Science and Management, Humboldt State UniversityUndergraduate Student
- Mahesh AbeynayakaDepartment of Building Economics, University of Moratuwa, Sri Lanka
- Rameez.Rameezdeen5Division of Information Technology, Engineering and the Environment, School of Natural and Built Environments, City East Campus, Australia
This study will compare the Environmental Laws and their corresponding Environmental Impact Assessment processes in developing and developed nations with a focus on Sri Lanka and the United States. The study will involve analysis and comparison of individual EIA components (i.e. screening, scoping, impact analysis and mitigation measures), identification of the strengths and weaknesses of each component under different national laws, and how that influences the effectiveness of the laws as well as how those laws are implemented. This research will serve as a basis on which to make recommendations to improve EIA processes and strengthen environmental policies and implementation.
A comparison of Three Mobile Mapping 3-D Data Collection TechniquesPresentation Year: 2019
- David GwenziEnvironmental Science and ManagementFaculty
In this project, GSP 330 (Mobile Mapping) students evaluated 3 methods of collecting three dimensional (3D) data at Ma-le'l Dunes Park in Arcata, CA. Data was collecting using 1) Autolevels, 2) Total Stations, and 3) Unmanned Aerial Vehicle (UAV). The XYZ data collected by the first two methods were converted to GIS data and then modeled into a Digital Elevation Model (DEM). Aerial images from the UAV were processed with Photoscan's Structure from Motion (SfM) algorithm to generate a point cloud and DEM. The point clouds from all methods were then processed into cut-fill rasters and Triangulated Irregular Networks (TINs) for visualization and comparison.
A Geospatial Inventory of the Jacoby Creek Forest & Potential for Restoration ThinningPresentation Year: 2020
- Cameron MillerForestryUndergraduate Student
Second-growth stands of conifers are increasingly being looked to for timber production and ecosystem services across the Pacific Northwest. These stands, regenerated after old-growth logging in the mid-20th century, have the potential to provide timber products, watershed protection and wildlife habitat. However, for these stands to function to their fullest potential, they often require silvicultural treatments such as variable density or restoration thinning. This project conducted a preliminary inventory of the Jacoby Creek Forest using geospatial analysis. Previous silviculture, stand conditions, road networks and watercourses were all compiled to create inventory maps of the forest.
A Home Where the Buffalo Roam, Once AgainPresentation Year: 2019
- Emily ColeWildlifeUndergraduate Student
The North American Bison once ranged across the Great Plains, but during the era of market hunting, their numbers dropped drastically. These large herbivores are highly valued in the indigenous tribes from their native region. In an effort to restore these culturally significant herds, zoos across the nation have bred them to be reintroduced into their homeland.
A Multi-Cultural Approach to Lesson StudyPresentation Year: 2017
- Yesenia TorresMathematicsUndergraduate Student
- Mario SanchezPhysicsUndergraduate Student
- AnaCena ZanderBiologyUndergraduate Student
Through the collaboration between Humboldt State and the university HEP in Switzerland, we developed lesson study practices for English Language Learners at l'Élysée, a Swiss high school. Specifically, our main areas of interest involved assessing student engagement and learning. Our lesson was taught four times, and after each lesson, it was adapted to better match the needs of our students.
A New Look at Factors Influencing Iron Limitation of Phytoplankton along the California CoastlinePresentation Year: 2017
- Jessica SolomonOceanographyUndergraduate Student
- Claire TillChemistryFaculty
While the ocean's upwelling regions bring nitrogen-rich water to the surface, evidence shows that the micronutrient, iron, can be limiting. In areas of low iron, the biological utilization of nitrogen is inhibited, preventing phytoplankton from fulfilling their productivity potential. It is thought that iron concentration of coastally upwelled water is tied to the coast’s geology , but there are more factors involved. To investigate this, we analyzed samples of California’s upwelling coast from published data that were deemed iron replete or limited. By studying the location's sea surface temperature and altimetry, plumes of water were proven an additional factor that influences iron.
A Search for Triggered Star Formation in the Compact Group of Galaxies NGC 5851, NGC 5852 and CGCG 077-007Presentation Year: 2017
- Charlotte OlsenPhysics & AstronomyUndergraduate Student
Galaxy interactions provide ideal conditions for triggering star formation, and impact galaxy evolution and the structure of the universe. I present analysis of one compact group of interacting galaxies. Areas of increased star formation are classified by the identification of the most UV bright regions within the galaxies. In order to gain deeper insight into how mergers drive galaxy evolution, star formation histories are determined by fitting ultraviolet to mid-infrared photometry to Spectral Energy Distribution (SED) models.
Amphibians and The Yurok Tribe's Wetland RestorationPresentation Year: 2019
- Macy DillenbeckWildlifeUndergraduate Student
My poster is about the Yurok tribe's wetland restorations with a focus on amphibian diversity with regard to the ongoing amphibian extinction.
An Analysis of Resin Flow and Growth Characteristics of Sugar Pine (Pinus lambertiana) in an old-growth fire excluded stand in the Western Sierra Nevada, California.Presentation Year: 2015
- Nickolas Zeibig-KichasForestry & Wildland ResourcesUndergraduate Student
Sugar pine (Pinus lambertiana) represents a culturally, ecologically, and economically important species that is threatened due to impacts from drought, fire exclusion, and beetle-disease complexes. One of the main defensive strategies of sugar pine to bark beetles and pathogens is the production of resin ducts structures, which secrete oleoresin compounds. In this study we look to analyze resin flow and growth traits, assessed as basal area increment (mm2), of older, larger (> 200 years) sugar pine to determine whether there are relationships between tree growth characteristics and oleoresin flow.