Exploring Recruitment, Retention, And License Purchase Probability Of Waterfowl Hunters Using A Mark-Recapture Approach,
2024
University of Nebraska - Lincoln
Exploring Recruitment, Retention, And License Purchase Probability Of Waterfowl Hunters Using A Mark-Recapture Approach, K. A. Graham, Mark P. Vrtiska, D. H. Humburg, Larkin A. Powell, A. H. Raedeke, P. K. Devers, Christopher J. Chizinski
School of Natural Resources: Faculty Publications
No abstract provided.
Genetic Tracking Of A Rabid Coyote (Canis Latrans) Detected Beyond A Rabies Enzootic Area In West Virginia, Usa,
2024
United States Department of Agriculture, Animal and Pplant Health Inspection Service, Wildliefe Services, National Wildlife Research Center, Fort Collins, Colorado
Genetic Tracking Of A Rabid Coyote (Canis Latrans) Detected Beyond A Rabies Enzootic Area In West Virginia, Usa, Matthew W. Hopken, Crystal Gigante, Amy T. Gilbert, Richard B. Chipman, Jordana D. Kirby, Rene Edgar Condori, Samuel Mills, Chelsea Hartley, John Forbes, Lisa Dettinger, Dongxiang Xia, Yu Li, Bridgett Vonholdt
United States Department of Agriculture Wildlife Services: Staff Publications
Wildlife translocation and cross-species transmission can impede control and elimination of emerging zoonotic diseases. Tracking the geographic origin of both host and virus (i.e., translocation versus local infection) may help determine the most effective response when high-risk cases of emerging pathogens are identified in wildlife. In May 2022, a coyote (Canis latrans) infected with the raccoon (Procyon lotor) rabies virus variant (RRV) was collected in Lewis County, West Virginia, USA, an area free from RRV. We applied host population genomics and RRV phylogenetic analyses to determine the most likely geographic origin of the rabid coyote. Coyote …
Common Raven Resource Selection, Diet, And Behavior Around A Threatened Shorebird,
2024
Humboldt State University
Common Raven Resource Selection, Diet, And Behavior Around A Threatened Shorebird, Janelle Chojnacki
Cal Poly Humboldt theses and projects
Human food subsidies have allowed populations of the common raven (Corvus corax) to expand and increase in density, especially in the western United States, which has amplified predation risk for other native species. Common ravens are well-documented nest predators of the federally threatened Western snowy plover (Anarhynchus nivosus nivosus) in Humboldt County, California; however, little is known about raven movement and foraging behavior in and around snowy plover habitat. Using GPS tracking and behavioral surveys, I examined movement and foraging behavior of beach-going ravens across snowy plover nesting habitat and I explored raven diet through stable isotope …
Evaluating The Trojan Y Chromosome Strategy For The Removal Of Invasive Sacramento Pikeminnow From The Eel River, Ca,
2024
Humboldt State University
Evaluating The Trojan Y Chromosome Strategy For The Removal Of Invasive Sacramento Pikeminnow From The Eel River, Ca, Alexander W. Juan
Cal Poly Humboldt theses and projects
The recent introduction and spread of Sacramento Pikeminnow (Ptychocheilus grandis) in Northern California’s Eel River Basin represents a significant threat and impediment to the recovery of several threatened native fish species. This study was undertaken to evaluate the Trojan Y Chromosome Strategy (TYC) for the extirpation of pikeminnow from the basin. TYC is a genetic biocontrol method that relies on the production and stocking of fish with YY sex chromosomes, which may be phenotypically male (YY male) or female (YY female). These YY fish produce all-male offspring when mating with their wild conspecifics and TYC can lead to …
Speaking For The States: A Response To The Proposal Of Subnational Forest Federalization,
2024
University of Kentucky
Speaking For The States: A Response To The Proposal Of Subnational Forest Federalization, Joseph White
Kentucky Journal of Equine, Agriculture, & Natural Resources Law
No abstract provided.
The Effects Of Temperature, Flooding, And Goose Feces Addition On Greenhouse Gas Emissions And Ammonification In Four High-Latitude Soils From Western Alaska,
2024
South Dakota State University
The Effects Of Temperature, Flooding, And Goose Feces Addition On Greenhouse Gas Emissions And Ammonification In Four High-Latitude Soils From Western Alaska, Jenna M. Ross
Electronic Theses and Dissertations
The large carbon (C) stock of wetlands is vulnerable to climate change, especially in high latitudes that are warming at a disproportional rate. Likewise, low-elevation Arctic coastal areas will flood more frequently under climate change and sea-level rise, which may alter goose herbivory and fecal deposition patterns if geese move inland. While temperature, flooding, and feces impact soil C emissions, their interactive effects have been rarely studied. Here, I explore the impact of these interactions on CO2 and CH4 emissions and nitrogen (N) mineralization (ammonification) in soils collected from four plant communities in the Yukon-Kuskokwim (Y-K) Delta, a high latitude …
Plant Available Water Drives Semi-Arid Forage Quality And Quantity In A Common Garden Greenhouse Experiment,
2024
South Dakota State University
Plant Available Water Drives Semi-Arid Forage Quality And Quantity In A Common Garden Greenhouse Experiment, Parker J. Witt
Electronic Theses and Dissertations
Rangeland forage nutrition and biomass production are integral components of sustainable livestock grazing systems and are controlled by soil quality and precipitation. I examined the effects of precipitation on growth and nutrition of three forage species in four different soils that span the longitudinal moisture gradient in South Dakota. I grew little bluestem (Schizachyrum scoparium), western wheatgrass (Pascopyrum smithii), and smooth brome (Bromus inermis) in soils representing the eastern tallgrass/mid-grass prairie (Brookings, 700 mm avg. precipitation.), an eastern mid-grass prairie (Highmore, 550 mm avg. precipitation.), a western mid-grass prairie (Cottonwood, 450 mm avg. precipitation.), and a western mid-grass/short-grass prairie (Sturgis, …
Soil Responses To Eastern Redcedar (Juniperus Virginiana L.) Afforestation And Prescribed Fire In South-Central South Dakota,
2024
South Dakota State University
Soil Responses To Eastern Redcedar (Juniperus Virginiana L.) Afforestation And Prescribed Fire In South-Central South Dakota, Robert Schaefer
Electronic Theses and Dissertations
Research was conducted in 2019 and 2020 on rangelands located in south-central South Dakota assessing a number of physical, chemical, and biological properties of mineral ustepts and ustents soils associated with eastern redcedar (ERC) (Juniperus virginiana) afforestation and prescribed fire. ERC afforestation appeared to be associated with significantly higher field-condition soil aggregate stability, cation exchange capacity (CEC), soil pH, and fungi:bacteria (F:B) as well as significantly lower soil moisture, nitrate-N, phosphorus, bacteria biomass, and Gram-positive:Gram-negative (GP:GN) bacteria compared to native grassland conditions, while other mineral soil properties appeared relatively unaffected. Compared to soil conditions under dense, living ERC canopies, prescribed …
Africa’S Overlooked Top Predator: Towards A Better Understanding Of Martial Eagle Feeding Ecology In The Maasai Mara, Kenya,
2024
University of Kentucky
Africa’S Overlooked Top Predator: Towards A Better Understanding Of Martial Eagle Feeding Ecology In The Maasai Mara, Kenya, Richard Stratton Hatfield, Allison G. Davis, Ralph Buij, John J. Cox, Shiv Kapila, Lemein Parmuntoro, Simon Thomsett, Munir Z. Virani, Peter Njoroge, Frank Van Langevelde
Forestry and Natural Resources Faculty Publications
Raptors exert top-down influences on ecosystems via their effects on prey population dynamics and community composition. Most raptors are sympatric with other predators, thus complicating our understanding of their relative influence in these systems. Estimates of kill rates and prey biomass recycling have been used as predation metrics that allow quantitative comparison among species and assessment of the relative role of single species within complex food webs. Few studies have produced findings of kill rates or prey biomass recycling for raptors. We used a supervised machine learning algorithm to behaviourally classify high resolution accelerometer informed GPS locations of tagged adult …
A Road Map For Place Based Collaboration For Conflict Reduction,
2024
University of Montana
A Road Map For Place Based Collaboration For Conflict Reduction, Joseph L. Zecher
Undergraduate Theses, Professional Papers, and Capstone Artifacts
No abstract provided.
Improving Accessibility And Understanding: Studying The Impact Of Human Activities And Dam Removals On Anadromous Fish Species In The Pacific Northwest,
2024
Scripps College
Improving Accessibility And Understanding: Studying The Impact Of Human Activities And Dam Removals On Anadromous Fish Species In The Pacific Northwest, Adia F. Bennett
Scripps Senior Theses
Human activities in North American watersheds have significantly impacted anadromous fish, causing some species of salmon and steelhead to become threatened and endangered. These fish hold ecological, cultural, and economic importance, yet factors such as habitat destruction, overfishing, pollution, climate change, and hydroelectric dams continue to degrade populations. Dams are particularly harmful to anadromous fish, sparking a recent movement advocating for dam removals. This study uses NOAA’s 2022 Biological Viability Assessment to examine the response of anadromous fish to recent dam removals in the Pacific Northwest. Four populations were selected to analyze due to their interaction with sites that had …
Use Of Otolith Microchemistry To Determine Natal Origins For Silver Carp Hypophthalmichthys Molitrix In The Lower Mississippi River Basin,
2024
University of Nebraska - Lincoln
Use Of Otolith Microchemistry To Determine Natal Origins For Silver Carp Hypophthalmichthys Molitrix In The Lower Mississippi River Basin, C. Barshinger, M. Eggleton, J. Spurgeon
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
No abstract provided.
Comparison Of Two Otolith Processing Methods For Silver Carp Age Estimation,
2024
University of Nebraska - Lincoln
Comparison Of Two Otolith Processing Methods For Silver Carp Age Estimation, J. N. Stevens, C. E. Barshinger, J. J. Spurgeon, M. A. Eggleton, S. E. Lochmann
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
No abstract provided.
Ecocultural Monitoring And Erosion Mitigation In Powers Creek, A Baduwa’T Tributary, In Blue Lake, California,
2024
Humboldt State University
Ecocultural Monitoring And Erosion Mitigation In Powers Creek, A Baduwa’T Tributary, In Blue Lake, California, Sebastian Castillo, Lillyauna Perry, Daniel Price, Lokey Struve
Undergraduate Scholarship
Riparian areas are of great ecological and cultural importance. They provide a variety of ecosystem services, protecting water quality, minimizing climatological changes, and acting as valuable wildlife habitat. They are often also places of connection and access to resources for indigenous communities. Powers Creek, a tributary of the Baduwa’t, is one such place for the Blue Lake Rancheria tribal community. Through the utilization of the process based restoration methodology, our team was able to develop dynamic, place-based solutions for the environmental ails impacting Powers Creek. On-site vegetation and rock weirs were employed as low-tech bioengineering technologies in order to slow …
Eco-Cultural Restoration Of Mouralherwaqh: Site Description And Invasive Species Treatment Plan In King Salmon, California,
2024
Humboldt State University
Eco-Cultural Restoration Of Mouralherwaqh: Site Description And Invasive Species Treatment Plan In King Salmon, California, Natalie Bridget Calderon, Myion Rickey, King Baptista, Owen Bardsley, Jillian Snowhook
Undergraduate Scholarship
In July of 2022, the Wiyot Tribe bought back one of their first pieces of ancestral forest within the Mouralherwaqh "more-RAH-share-wahg" village area (Wiyot, 2022). Before this repatriation, the Tribe owned less than 1% of their ancestral lands; after, the Tribe’s land holdings increased by 10% (Reclaiming Mouralherwaqh | Humboldt NOW | Cal Poly Humboldt, 2022). Mouralherwaqh is a 46 acre coastal site located near present day King Salmon, California and has high ecological and culturally significant values (Wiyot, 2022). Prior to the change of ownership, Mouralherwaqh was privately-owned and in 2014 underwent a clear-cut timber harvest within eight-acres of …
Influence Of Elevation On Plant Survivorship In Baduwa’T Estuary,
2024
Humboldt State University
Influence Of Elevation On Plant Survivorship In Baduwa’T Estuary, Richard Louis Toledo Jr., Celine Aguilera, Rivé Prater, Claire Durbin
Undergraduate Scholarship
The Baduwa’t is a river in Humboldt County, California that has been adversely impacted by agricultural operations. Disturbances from agriculture have altered the surrounding ecosystems and hydrology of the river. The conservation stewardship group, California Trout, initiated a collaborative restoration project that created a new channel and off-channel pond to provide habitat for salmonids and other native fish in the estuary. As an extension of this project, sections of the site underwent revegetation efforts. The survivorship rates of this new vegetation were lower than anticipated and we were asked by California Trout to assess if the elevation on the site …
Riparian Revegetation: Re-Indigenizing The Powers Creek Tributary Of The Baduwa’T Watershed At Blue Lake Rancheria, California,
2024
Cal Poly Humboldt
Riparian Revegetation: Re-Indigenizing The Powers Creek Tributary Of The Baduwa’T Watershed At Blue Lake Rancheria, California, Genesis Beltran, Ruben Lopez, Ben Stock
Undergraduate Scholarship
This project focuses on the ecological and cultural restoration of Powers Creek, a tributary of the Baduwa’t watershed at Blue Lake Rancheria, California. Riparian ecosystems play a critical role in biodiversity, water quality, and climate resilience, particularly for species like salmonids reliant on cold-water refugia. The restoration efforts, guided by Indigenous knowledge, addressed the removal of non-native competitive species such as Scotch broom (Cytisus scoparius) and French broom (Genista monspessulana) – which are shown to increase wildfire severity and challenge native plant communities – in addition to freeing established plantings of vegetative competition. Through collaborative planning …
Iere Annual Report 2024,
2024
University of North Florida
Iere Annual Report 2024, Erin Largo-Wight, Nicole Lowe, Kelly Rhoden, Abbey Townsend, Ruby Cox
Annual Reports
2024 Annual Report of the Institute for Environmental Research and Education
Measuring And Modeling Riparian Wetland Saturated Hydraulic Conductivity, Nutrient Concentrations And Shallow Groundwater Dynamics In An Appalachian Mixed Land Use Catchment,
2024
West Virginia University
Measuring And Modeling Riparian Wetland Saturated Hydraulic Conductivity, Nutrient Concentrations And Shallow Groundwater Dynamics In An Appalachian Mixed Land Use Catchment, Bidisha Faruque Abesh
Graduate Theses, Dissertations, and Problem Reports (ETD)
The paucity of research on accurate predictions of saturated hydraulic conductivity (Ksat), spatiotemporal analysis of nutrient concentrations relative to water source types (stream and shallow groundwater (SGW)), water flow directions, and land use in riparian wetlands of Appalachian mixed land use catchments underscored the need for this study. Additionally, the lack of SGW flow simulations and stream-SGW interactions using three-dimensional (3D) numerical models (i.e., MODFLOW) in these riparian wetlands further highlighted the research gap. Observed data including soil properties, Ksat, surface water (SW) and SGW levels, and nutrient concentrations, including nitrate (NO3-N), nitrite (NO2-N), ammonium (NH4-N), orthophosphate (PO43-P), total nitrogen …
Trends And Patterns Of Plant Conservation Research In Borneo: A Review,
2024
Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Gadong BE1410 Bandar Seri Begawan, Brunei Darussalam
Trends And Patterns Of Plant Conservation Research In Borneo: A Review, Rizmoon Nurul Zulkarnaen, Sabri Mohd. Ali, Daniele Cicuzza
ASEAN Journal on Science and Technology for Development
Borneo hosts exceptional plant diversity, including numerous endemic species, but faces significant threats from rapid habitat loss driven by deforestation and land-use changes. This study aimed to analyze research trends and forecast future directions through a bibliometric analysis of Scopus data spanning from 1914 to 2023. The bibliometric analysis included publication outputs, citation patterns, thematic mapping, and keyword co-occurrence. We used VOSviewer to visualize bibliometric networks and the Bibliometrix package in R to perform advanced bibliometric analysis and interactive data exploration. The analysis revealed a continuous rise in publications (998 documents), with the Journal of Ecology identified as the most …
