Can Upscaling Ground Nadir Sif To Eddy Covariance Footprint Improve The
Relationship Between Sif And Gpp In Croplands?,
2023
University of Illinois at Urbana-Champaign
Can Upscaling Ground Nadir Sif To Eddy Covariance Footprint Improve The Relationship Between Sif And Gpp In Croplands?, Genghong Wu, Kaiyu Guan, Chongya Jiang, Hyungsuk Kimm, Guofang Miao, Xi Yang, Carl J. Bernacchi, Xiangmin Sun, Andrew E. Suyker, Caitlin E. Moore
School of Natural Resources: Faculty Publications
Ground solar-induced chlorophyll fluorescence (SIF) is important for the mechanistic understanding of the dynamics of vegetation gross primary production (GPP) at fine spatiotemporal scales. However, eddy covariance (EC) observations generally cover larger footprint areas than ground SIF observations (a bare fiber with nadir), and this footprint mismatch between nadir SIF and GPP could complicate the canopy SIF-GPP relationships. Here, we upscaled nadir SIF observations to EC footprint and investigated the change in SIF-GPP relationships after the upscaling in cropland. We included 13 site-years data in our study, with seven site-years corn, four siteyears soybeans, and two site-years miscanthus, all located …
Global Projections Of Flash Drought Show Increased
Risk In A Warming Climate,
2023
University of Oklahoma
Global Projections Of Flash Drought Show Increased Risk In A Warming Climate, Jordan I. Christian, Elinor R. Martin, Jeffrey B. Basara, Jason C. Furtado, Jason A. Otkin, Lauren E. L. Lowman, Eric D. Hunt, Vimal Mishra, Xiangming Xiao
School of Natural Resources: Faculty Publications
Flash drought, characterized by unusually rapid drying, can have substantial impact on many socioeconomic sectors, particularly agriculture. However, potential changes to flash drought risk in a warming climate remain unknown. In this study, projected changes in flash drought frequency and cropland risk from flash drought are quantified using global climate model simulations. We find that flash drought occurrence is expected to increase globally among all scenarios, with the sharpest increases seen in scenarios with higher radiative forcing and greater fossil fuel usage. Flash drought risk over cropland is expected to increase globally, with the largest increases projected across North America …
Interannual Variation Of Ichthyofaunal Utilization Of A Man-Made Salt Marsh Creek In Mission Bay, California,
2023
University of San Diego
Interannual Variation Of Ichthyofaunal Utilization Of A Man-Made Salt Marsh Creek In Mission Bay, California, Maria Angst
Undergraduate Honors Theses
Marsh restoration and creation are increasingly being used to mitigate Southern California’s drastic decline in wetlands due to human activities. This study used minnow traps to resample the ichthyofauna of a created marsh (Crown Point Mitigation Site; CPMS) and an adjacent natural marsh (Kendall Frost) in Mission Bay, California, 26 years following the marsh creation. Data from this study were compared to data collected immediately after marsh creation from 1995-1998, and from 2021. Fishes captured included Fundulus parvipinnis, Gillichthys mirabilis, Acanthagobius flavimanus, Ctenogobius sagittula, and Mugil cephalus. Species richness and dominance measures were higher in the natural relative to the …
Feral Swine As Indirect Indicators Of Environmental Anthrax
Contamination And Potential Mechanical Vectors Of
Infectious Spores,
2023
Colorado State University - Fort Collins
Feral Swine As Indirect Indicators Of Environmental Anthrax Contamination And Potential Mechanical Vectors Of Infectious Spores, Rachel M. Maison, Maggie R. Priore, Vienna R. Brown, Michael Bodenchuk, Bradley R. Borlee, Richard Bowen, Angela M. Bosco-Lauth
United States Department of Agriculture Wildlife Services: Staff Publications
U.S. government work
Desalination: Adapting To A Changing Climate And An Increasing Demand For Freshwater,
2023
University of San Francisco
Desalination: Adapting To A Changing Climate And An Increasing Demand For Freshwater, Rebecca A. Acosta
Master's Projects and Capstones
The state of California is just one place in the world that is experiencing an increasing demand for freshwater while also experiencing increasingly hotter conditions and longer periods of drought. There are a number of plants slated for development in the state of California but have been met with resistance from the public with concerns regarding their impacts to the surrounding marine environments. This paper provides background on desalination plants, provides evidence for a potential indicator species, identifies potential impacts to marine environments, and addresses stakeholder concerns and perceptions around desalination plants.
Stormwater To Groundwater: How California Can Increase Groundwater Storage And Build Climate Resilience.,
2023
University of San Francisco
Stormwater To Groundwater: How California Can Increase Groundwater Storage And Build Climate Resilience., Emily M. Perales
Master's Projects and Capstones
California is predicted to have more intense and frequent changes in weather patterns within the next 50 years. Historical and current groundwater use for residential and agricultural use is unsustainable and is creating significant deficits in groundwater aquifers throughout the state. To better adapt to potential damages caused by atmospheric rivers, better stormwater management and capture could increase California’s Climate adaptability. This study is focused on the means and methods to capture stormwater and increase groundwater recharge. Nature-based infrastructure (NBI), or Green Infrastructure (GI), has been used in urban areas throughout the country to mitigate harmful stormwater effects by replicating …
Willow Abundance And Condition Mapping In Rocky Mountain National Park,
2023
Portland State University
Willow Abundance And Condition Mapping In Rocky Mountain National Park, Eric M. Nielsen
Institute for Natural Resources Publications
Riparian and wetland willow species have undergone serious declines in Rocky Mountain National Park as a consequence of a variety of environmental changes and, most recently, damage resulting from moose overpopulation. To address concerns about the long-term status of willows in the park, we developed remote sensing-based raster maps of riparian and wetland willow species presence, canopy cover percentage, canopy height, and leaf area index. All outputs were produced at 3-meter resolution, and represent willows as they existed in 2021. The mapping was performed via random forests classification and regression models trained on several hundred vegetation plots from a variety …
Possible Impact Of Additives In Artificial Turf On Aquatic Life In The San Francisco Estuary,
2023
University of San Francisco
Possible Impact Of Additives In Artificial Turf On Aquatic Life In The San Francisco Estuary, Elena Galkina
Master's Projects and Capstones
The use of artificial turf fields as a replacement for natural turf has been increasingly promoted as a green solution to reduce water usage, maintenance costs, and the need for pesticides. However, the potential environmental impacts of artificial turf fields are poorly understood, particularly in the context of the San Francisco Estuary, which is one of the largest and most polluted estuaries in the United States. This paper investigates the potential contribution of artificial turf from sports fields to the microplastic and chemical pollution of the San Francisco Estuary during artificial turf’s use and maintenance life stage. The study synthesizes …
Revisiting The Definition Of Field Capacity As A Functional Parameter In A
Layered Agronomic Soil Profile Beneath Irrigated Maize,
2023
University of Naples Federico II
Revisiting The Definition Of Field Capacity As A Functional Parameter In A Layered Agronomic Soil Profile Beneath Irrigated Maize, Paolo Nasta, Trenton E. Franz, Justin P. Gibson, Nunzio Romano
School of Natural Resources: Faculty Publications
The soil water content at the condition of field capacity (θFC) is a key parameter in irrigation scheduling and has been suggested to be determined by running a synthetic drainage experiment until the flux rate (q) at the bottom of the soil profile achieves a predefined negligible value (qFC). We question the impact of qFC on the assessment of field capacity. Moreover, calculating θFC as the integral mean of the water content profile when q is equal to qFC is strictly valid only for uniform soil profiles. By contrast, …
Connecting Social And Ecological Systems In Small-Scale Fisheries In The Philippines,
2023
University of Southern Mississippi
Connecting Social And Ecological Systems In Small-Scale Fisheries In The Philippines, Sara Eisler Marriott
Dissertations
Nearly 50% of all marine fish capture in the Philippines is from artisanal fisheries, most of which is un- or under-reported. As in many emerging nations around the world, the Philippines cannot fully address overfishing by managing only half of the catch that comes from commercial fisheries. Marine reserves are a popular governance strategy for conservation and of growing interest for fisheries management. Many marine reserves in the Philippines, however, are not considered effective. In 2014, Rare, an international NGO, implemented a community-based management program to increase the effectiveness of the marine reserves, and while it found biomass increased, there …
Determining The Impact Of Post-Harvest Water Management On Chironomid Abundance, Agrochemical Biomass And Potential Trophic Biomagnification,
2023
Mississippi State University
Determining The Impact Of Post-Harvest Water Management On Chironomid Abundance, Agrochemical Biomass And Potential Trophic Biomagnification, Mason Thomas
Theses and Dissertations
Agriculture has diminished shorebirds’ natural habitat in the Mississippi Alluvial Valley. Remaining natural stopover sites are supplemented with agricultural fields during the fall and winter. This study evaluates the impact of 4 different post-harvest water management strategies on shorebird food abundance and potential agrochemical biomagnification. Chironomid samples estimated abundance, biomass, and chironomid agrochemical concentration in each field. A risk assessment of agrochemical biomagnification to shorebirds was made across all treatments. Of treatments represented on all study sites, winter treatment had greatest chironomid abundance and biomass. Models indicated that days since flood initiation, start date, and temperature are significant predictors of …
The Influence Of Marsh Edge And Seagrass Habitat On Summer Fish And Macroinvertebrate Recruitment To A Northern Gulf Of Mexico Coastal System,
2023
Mississippi State University
The Influence Of Marsh Edge And Seagrass Habitat On Summer Fish And Macroinvertebrate Recruitment To A Northern Gulf Of Mexico Coastal System, Rebecca Lea Gilpin
Theses and Dissertations
Marshes and seagrass beds have been widely recognized as important habitat for estuarine species, but less has been done on how these habitats interact and function together, thereby limiting understanding of the variability of juvenile recruitment to coastal systems. Therefore, the objective of this study was to assess the interaction between fringing marsh and adjacent seagrass for the provision of habitat for juvenile nekton. Weekly seine net and benthic seagrass core sampling from June to November 2020 determine the relationship between nekton and marsh-edge and seagrass habitat. This study shows disparate results, in terms of the effects of proximity to …
Trade-Offs Between Temperature And Fitness In Euschistus
Heros (Fabricius) (Hemiptera: Pentatomidae): Implications For
Mass Rearing And Field Management,
2023
São Paulo State University
Trade-Offs Between Temperature And Fitness In Euschistus Heros (Fabricius) (Hemiptera: Pentatomidae): Implications For Mass Rearing And Field Management, Ana Paula Frugeri Barrufaldi, Rafael Hayashida, William Wyatt Hoback, Leon G. Higley, Jose Romario De Carvalho, Regiane Cristina De Oliveira
School of Natural Resources: Faculty Publications
The brown stink bug, Euschistus heros (Fabricius, 1798) (Hemiptera: Pentatomidae), is one of the most abundant soybean stink bug pests in Brazil. Temperature is a key factor that affects its development and reproduction, and fluctuating temperatures may impact the development and reproduction of E. heros differently from those under constant temperatures. The objective of this study was to evaluate the influence of constant and fluctuating temperature on the biological characteristics of E. heros in three successive generations. Treatments consisted of six constant temperatures (19oC, 22oC, 25oC, 28oC, 31oC and 34 …
Post Wildfire Vegetation Response To The Wildland-Urban Interface: A Case Study Of The Station Fire,
2023
California State University, Dominguez Hills
Post Wildfire Vegetation Response To The Wildland-Urban Interface: A Case Study Of The Station Fire, Angelo C. De Guzman, Raju Bista, Parveen K. Chhetri
CSU Journal of Sustainability and Climate Change
In the past, wildfires served as a method for mother nature to promote biodiversity and to help maintain a functioning ecosystem. However, climate change alters the fire regime, significantly impacting vegetation recovery. Human disturbances and increased land use and land cover heighten vegetation disruption and abundance after a fire. Wildland-urban interface (WUI) – the region where the vegetation intermingles with the roads, houses, and human-made structures – threatens vegetation and the human population. Overall vegetation recovery after the Station Fire of 2009 spread through the San Gabriel Mountains, Los Angeles County was observed using Digital Elevation Model (DEM), Normalized Difference …
Striped Blenny (Chasmodes Bosquianus) Presence And Behavior Between Sunrise And Sunset At Oyster Landing, South Carolina,
2023
Coastal Carolina University
Striped Blenny (Chasmodes Bosquianus) Presence And Behavior Between Sunrise And Sunset At Oyster Landing, South Carolina, Madeline Schuetze
Honors Theses
Lunar and diel cycles of fishes can help to interpret their behaviors during their reproductive season. Temperate estuaries are used by many benthic fishes for shelter and reproduction. This study examined the behavior and presence of striped blennies (Chasmodes bosquianus) during diel and lunar cycles. PVC pipe shelters were placed to mimic oyster shell nests, a natural habitat for blennies, and cameras were placed to monitor these shelters in April, May, and June 2022, during the striped blenny reproductive period. Video footage was reviewed and analyzed for the presence and behavior of both male and female blennies. Male presence …
Downstream Hydrochemistry And Irrigation Water Quality Of The Syr Darya, Aral Sea
Basin, South Kazakhstan,
2023
Al-Farabi Kazakh National University, LLP EcoRadSM
Downstream Hydrochemistry And Irrigation Water Quality Of The Syr Darya, Aral Sea Basin, South Kazakhstan, Bagdat Satybaldiyev, Baimurat Ismailov, Nurbek Nurpeisov, Kairat Kenges, Daniel D. Snow, Arindam Malakar, Omirzhan Taukebayev, Bolat Uralbekov
Daugherty Water for Food Global Institute: Faculty Publications
New hydrochemical measurements from the Syr Darya provide insights into factors affecting the composition and quality of a major freshwater source replenishing the Aral Sea. This river is heavily used for power and irrigation and crosses territories of four Central Asia republics. It is intensely managed, draining several major tributaries, many reservoirs, and numerous irrigation distribution systems and canals. Analysis of seasonal changes in dissolved ion concentrations using geochemical diagrams, elemental ratios, statistical correlation, and equilibrium modeling allowed the characterization of mineral formation processes that control the dissolved chemical composition. Measured water hydrochemistry and composition type differs substantially from previous …
Biodiversity In Eastern Kentucky: Effects Of Habitat Change, Surface Top Mining, And Current Reclamation Practices,
2023
Bellarmine University
Biodiversity In Eastern Kentucky: Effects Of Habitat Change, Surface Top Mining, And Current Reclamation Practices, Sydney Pardieu
Undergraduate Theses
Biodiversity is a key component in maintaining the valuable ecosystem services that are vital to the way humans interact with and rely on the environment. The Appalachian Region in Eastern North America is one of the most biodiverse temperate broadleaf forests in the world and is home to hundreds of endangered or endemic species. Despite the high biodiversity, the region is also heavily mined, particularly by mountain top removal, causing habitat change and pollution. Current reclamation practices for mined lands are lacking in effective reclamation criterion, and state statutes provide little or no attention to the preservation of biodiversity. Therefore, …
Prioritizing Professional Development At The Interface Of Natural Resources And Agriculture,
2023
Kansas State University
Prioritizing Professional Development At The Interface Of Natural Resources And Agriculture, Katherine J. Starzec
Journal of Extension
Continuous professional development is critical for Extension staff, and many agriculture-focused Extension employees are tasked with outreach related to a wide variety of natural resource topics. The purpose of this study is to help prioritize trainings needed by Kansas Extension agents and specialists based on their current level of knowledge and interest in staying up to date on 18 different natural resource topics. Responses to a statewide survey were analyzed using the Borich model. Results indicate priority professional development needs related to soil health; effects of climate; invasive species, harmful algal blooms; and groundwater, surface water, and air quality.
Application Of Screening In Rangeland Monitoring: Quantifying Early-Warning Signals Of State Transitions In Nebraska,
2023
University of Nebraska-Lincoln
Application Of Screening In Rangeland Monitoring: Quantifying Early-Warning Signals Of State Transitions In Nebraska, Daniel S. Bauloye
School of Natural Resources: Dissertations, Theses, and Student Research
Woody encroachment, desertification, and exotic annual grass invasion are regime shifts (i.e., state-transitions) with detrimental effects on ecosystem health and services in grasslands of the North American Great Plains. Traditional approaches to rangeland monitoring are capable of detecting regime shifts after they have already occurred (i.e., diagnosing them); however, proactive management requires earlier warning. Regime shift screening is a new approach to rangeland monitoring capable of providing earlier warning of regime shifts. Regime shift screening proposes assessing the presence, persistence, and non-stationarity of regime shift signals; however, no studies have systematically evaluated these characteristics in real-world landscapes. In this thesis, …
What Are The Impacts Of Deer Browsing And Japanese Stiltgrass (Microstegium Vinenium) On Native Sapling Growth In A Residential Wetland In Southeastern Georgia?,
2023
Georgia Southern University
What Are The Impacts Of Deer Browsing And Japanese Stiltgrass (Microstegium Vinenium) On Native Sapling Growth In A Residential Wetland In Southeastern Georgia?, Josie Richards
Honors College Theses
Wetlands promote biodiversity, act as climate stabilizers, and regulate water flow, yet are vulnerable to invaders. An invasive species can affect the biodiversity, abiotic conditions, and increase vulnerability of an ecosystem over time and deer browsing can actively affect new growth by removing the apical buds of young woody vegetation. Japanese stiltgrass (Microstegium vimineum), a wetland specific invader, has been shown to compete against native species for limited resources and actively crowd them out. Growth of native saplings can be further complicated by the presence of white tailed deer (Odocoileus virginianus), which browse woody vegetation and limit recruitment of trees. …
