Physical Sciences and Mathematics Commons^™

Modeling Current And Future Saltmarsh Distribution In Arcata Marsh, Madeline Kay Mcnerthney

Cal Poly Humboldt theses and projects

Saltmarsh habitat is vulnerable to Sea Level Rise (SLR) and requires long-term management plans for communities to continue to benefit from their ecosystem services. This study analyzed the variation of above-ground vegetation biomass throughout I Street Marsh, using multiple variables, including classified vegetative community types, elevation and remote sensing indexes comprised of both visual (Red, Green, Blue) and non-visual (Red Edge, Near Infrared) bands. Plant community types were classified using a cluster analysis, and distinguished three communities, based on dominant species: Salicornia, Spartina, and a mixed type (diverse floristic makeup, with no dominant species). Above-ground biomass was significantly higher in …

Confounding Effects Of Snow Cover On Remotely Sensed Vegetation Indices Of Evergreen And Deciduous Trees: An Experimental Study, R. Wang, K. R. Springer, John A. Gamon

School of Natural Resources: Faculty Publications

No abstract provided.

Multi-Scale Sources Of Precipitation Predictability In The Northern Great Plains, C. M. Carrillo, Francisco Munoz-Arriola

School of Natural Resources: Faculty Publications

No abstract provided.

Survival And Growth Assessment After Reintroduction Of The Pocketbook Mussel, Lampsilis Cardium Rafinesque, 1820 Among Three Streams In Nebraska (Usa), F. Montesanto, L. M. Ohlman, Mark A. Pegg

School of Natural Resources: Faculty Publications

No abstract provided.

Moving Beyond The Panarchy Heuristic, David G. Angeler, Craig R. Allen

School of Natural Resources: Documents and Reviews

No abstract provided.

Storms And Ph Of Dam Releases Affects Downstream Phosphorus Cycling In An Arid Regulated River, B. R. Deemer, R. H. Reibold, A. Fatta, J. R. Corman, C. B. Yackulic, S. C. Reed

School of Natural Resources: Documents and Reviews

No abstract provided.

Multi-Scale Adaptive Management Of Social-Ecological Systems, A. Garmestani, Craig R. Allen, D. G. Angeler, L. Gunderson, J. B. Ruhl

School of Natural Resources: Documents and Reviews

No abstract provided.

Local-Scale Impacts Of Water Hyacinth On Water Quality In A Hypereutrophic Lake, J. R. Corman, A. Z. Roegner, Z. Ogari, T. R. Miller, C. M. Aura

School of Natural Resources: Documents and Reviews

No abstract provided.

Characterization Of Particulate Size Distributions And Water-Soluble Ions Measured At A Broiler Farm, P. J. Silva, T. Cress, R. Drover, C. Michael, G. Docekal, P. Larkin, A. Godoy, D. A. Cavero, C. Sin, J. Waites, Rezaul Mamood, M. Cohron, K. L. Purvis-Roberts

School of Natural Resources: Documents and Reviews

No abstract provided.

Evaluating River Morphology Change With A Geomorphic Form Variation Approach, Corey Dawson, Peter Ashmore, Robert Corry

Geography & Environment Publications

Geomorphic river design strives for natural resilience by encouraging geomorphic form complexity and morphological processes linked to greater habitat diversity. Increasing availability of high-resolution topographic data and spatial feature mapping methods provide advantages for morphological analysis and river restoration planning. We propose and evaluate an approach to quantifying topographic variability of geomorphic form and pixel-level surface roughness resulting from channel planform geometry differences using spatially continuous variety computation applied to component metrics including flow direction, aspect and planform curvature. We define this as the geomorphic form variation (GFV) approach and found it scalable, repeatable and a multi-stage analytical metric for …

Your Friend, Wildfire, Elizabeth Riddle, Aubrey Frissell, Mackenzie Weiland, Katherine Wendeln, Rory Mclaverty, Lillian Hollibaugh

Undergraduate Theses, Professional Papers, and Capstone Artifacts

The frequency and severity of wildfire has increased around the world within the past two decades, due to shifts in land management practices, climate change, and other factors. The effects of these fires have led to an inaccurate public perception of wildfire as a whole. This overly-simplified, vilified perception of all fire obscures the role that it has played in shaping landscapes for thousands of years, and how indigenous peoples have applied fire to take care of landscapes.

Positive public perception of using fire as a tool for land management creates a more supportive environment for healthy landscape management. Thus, …

Iere Annual Report 2023, Erin Largo-Wight, James Taylor, Kelly Rhoden, Ruby Cox, Nicole Lowe

Annual Reports

2023 Annual Report of the Institute for Environmental Research and Education

The Use Of A Habitat Quality Stress Index To Evaluate Stress As An Analog For Proximate Fitness In The American Crow Within A Matrix Of Landcover Characteristics To Assess Its Potential Contribution To Disease Etiologies, Theodore Lee Grabarz

Antioch University Dissertations & Theses

All organisms occur within spatial and temporal environments to maximize proximate fitness (health) and thus life history outcomes. Previous work has examined the temporal and behavioral aspects of proximate fitness on life history outcomes particularly regarding highly perturbed environments (i.e., climate and land use change, resource extraction, agricultural erosion, etc.). My work focuses on the less examined spatial aspect of these perturbed environments. More specifically, this dissertation examines habitat selection and quality as the basis for understanding stress response (negative and positive feedback mechanisms) to environmental stressors within the larger context of regional or gamma (ɣ) biodiversity. Through the lens …

An Integrative Salt Marsh Conceptual Framework For Global Comparisons, Erik S. Yando, Scott F. Jones, W. Ryan James, Denise D. Colombano, Diana I. Montemayor, Stefanie Nolte, Jacqueline L. Raw, Shelby L. Ziegler, Luzhen Chen, Daniele Daffonchio, Marco Fusi, Kerrylee Rogers, Liudmila Sergienko

Biological Sciences Faculty Publications

Salt marshes occur globally across climatic and coastal settings, providing key linkages between terrestrial and marine ecosystems. However, salt marsh science lacks a unifying conceptual framework; consequently, historically well-studied locations have been used as normative benchmarks. To allow for more effective comparisons across the diversity of salt marshes, we developed an integrative salt marsh conceptual framework. We review ecosystem-relevant drivers from global to local spatial scales, integrate these multi-scale settings into a framework, and provide guidance on applying the framework using specific variables on 11 global examples. Overall, this framework allows for appropriate comparison of study sites by accounting for …

Contrasting Photoprotective Responses Of Forest Trees Revealed Using Pri Light Responses Sampled With Airborne Imaging Spectrometry, J. A. Gamon, R. Wang, Sabrina E. Russo

School of Natural Resources: Faculty Publications

No abstract provided.

Stage Transitions In Lucilia Sericata And Phomia Regina (Diptera: Calliphoridae) And Implications For Forensic Science, A. Roe, R. J. Barnes, L. G. Higley, N. H. Haskell

School of Natural Resources: Faculty Publications

No abstract provided.

Changing Blowfly (Diptera: Calliphoridae) Populations In Orlando, Florida, United States, A. Roe, R. J. Barnes, Leon G. Higley, N. H. Haskell

School of Natural Resources: Faculty Publications

No abstract provided.

Ewe…Dung Beetles And Poop: A Nutrient Cycling And Population Ecology Lesson For Elementary Students, Leon G. Higley, D. A. Golick, P. M. Higley

School of Natural Resources: Faculty Publications

No abstract provided.

A Review Of User Perceptions Of Drought Indices And Indicators Used In The Diverse Climates Of North America, R. R. Heim Jr, D. Bathke, B. Bonsal, E. W. Cooper, T. Hadwen, K. Kodama, D. Mcevoy, M. Muth, J. W. Nielsen-Gammon, H. R. Prendeville, R. P. Ramirez

School of Natural Resources: Faculty Publications

No abstract provided.

20 Years Of Change In Tundra Ndvi From Coupled Field And Satellite Observations, F. K. Huemmrich, J. Gamon, P. Campbell, M. Mora, S. Vargas, B. Almanza, C. Tweedie

School of Natural Resources: Faculty Publications

No abstract provided.

Changes And Relationships Of Soil Aluminum, Organic Matter, And Hydrogen Ion Concentration With Rye Cover Crop, Arron Wilder

Cal Poly Humboldt theses and projects

Soil acidity is a common agricultural problem worldwide, as approximately 50% of all potentially arable soils are affected by pH limitations. At soil pH 3+) is considered to be the chemical form of aluminum in acid soil that hinders plant growth the most. Potentially, soil organic matter (SOM) can ameliorate the toxic effects of Al³⁺ on plants and microbes by binding with Al³⁺, thus preventing Al³⁺ (and other species of aluminum) from interacting in the rhizosphere. Increasing SOM also increases soil health indicators (i.e., microbial activity, soil water holding capacity, aggregate stability, porosity, etc.) while the …

Carnivore And Ungulate Occurrence In A Fire-Prone Region, Sara J. Moriarty-Graves

Cal Poly Humboldt theses and projects

Increasing fire size and severity in the western United States causes changes to ecosystems, species’ habitat use, and interspecific interactions. Wide-ranging carnivore and ungulate mammalian species and their interactions may be influenced by an increase in fire activity in northern California. Depending on the fire characteristics, ungulates may benefit from burned habitat due to an increase in forage availability, while carnivore species may be differentially impacted, but ultimately driven by bottom-up processes from a shift in prey availability. I used a three-step approach to estimate the single-species occupancy of four large mammal species: mountain lion (Puma concolor), coyote …

Relating Predator Community Ecology And Duck Nest Survival In Eastern South Dakota, Samantha R. Fino

Electronic Theses and Dissertations

As conversion of native grasslands and wetlands to croplands continues in the Prairie Pothole Region (PPR), managers are tasked with maintaining sustainable waterfowl populations. Mesopredator community dynamics is a hypothesized mechanism driving spatiotemporal variation of waterfowl nest survival in the PPR, yet studies often lack detailed information on mesopredator species occurrence and abundance. Therefore, understanding spatial and temporal variation in behaviors of mesopredators provides valuable insights for understanding predator-prey interactions between mesopredators and upland duck nests. Further, differences in a predator community resulting from lethal removal of dominant species may influence composition and space use patterns of subordinate and non-target …

Quantitative Change Analysis Of Undisturbed Lands In Eastern South Dakota: 2012-2021, Riley W. Wollschlager

Electronic Theses and Dissertations

The actual rate of loss of undisturbed prairie and woodland in eastern South Dakota is unknown, and the landscape composition of the region continues to change. Undisturbed land is land with no proven prior cropping or other disturbance history. Agriculture, development, recreation, and other land use practices create disturbances resulting in the further conversion of undisturbed prairies and woodlands. Previous work by South Dakota State University (SDSU) quantified the remaining undisturbed land in eastern South Dakota as of 2012 (Bauman et al 2016). Farm Service Agency (FSA) common land unit (CLU) and National Agricultural Imagery Program (NAIP) imagery were the …

Future Of Great Salt Lake Survey, Lisa W. Welsh, Joanna Endter-Wada, Karin M. Kettenring, Anna Mcentire

Reports

The Future of Great Salt Lake Survey was conducted in fall 2022 when state and global attention on Great Salt Lake was ramping up, following record lows of the elevation of lake water levels. In the survey, we asked Utahns their opinions on securing water for Great Salt Lake and focused on strategies that individuals, local communities, and the state of Utah could pursue. When it comes to how water is used and managed in Utah, there are multiple actors and institutions who all make decisions and have authority or ability to take different actions. While the state of …

Osc-Co2: Coattention And Cosegmentation Framework For Plant State Change With Multiple Features, R. Quinones, F. Munoz-Arriola, S. D. Choudhury, A. Samal

School of Natural Resources: Faculty Publications

No abstract provided.

Defining And Describing Students’ Socioscientific Issues Tradeoffs Practices, P. C. Jimenez, A. Zwickle, J. M. Dauer

School of Natural Resources: Faculty Publications

No abstract provided.

Student Outcomes Of Teaching About Socio-Scientific Issues In Secondary Science Classrooms: Applications Of Ezgcm, K. Carroll Steward, D. Gosselin, M. Chandler, C. T. Forbes

School of Natural Resources: Faculty Publications

No abstract provided.

Wastewater Treatment In Central Asia: Treatment Alternatives For Safe Water Reuse, M. S. Kalmakhanova, J. L. Diaz De Tuesta, A. Malakar, H. T. Gomes, D. D. Snow

School of Natural Resources: Faculty Publications

No abstract provided.

Lineage Diversity In A Widely Distributed New World Passerine Bird, The House Wren, J. Klicka, K. Epperly, B. T. Smith, G. M. Spellman, J. A. Chaves, P. Escalante, C. C. Witt, R. Canales-Del-Castillo, R. M. Zink

School of Natural Resources: Faculty Publications

No abstract provided.