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Articles 361 - 390 of 430
Full-Text Articles in Environmental Monitoring
Coral Oxygen Isotopic Records Capture The 2015/2016 El Niño Event In The Central Equatorial Pacific, Gemma K. O'Connor, Kim M. Cobb, Hussein R. Sayani, Alyssa R. Atwood, Pamela R. Grothe, Samantha Stevenson, Et. Al.
Coral Oxygen Isotopic Records Capture The 2015/2016 El Niño Event In The Central Equatorial Pacific, Gemma K. O'Connor, Kim M. Cobb, Hussein R. Sayani, Alyssa R. Atwood, Pamela R. Grothe, Samantha Stevenson, Et. Al.
Earth and Environmental Sciences
Coral oxygen isotopes (δ18O) from the central equatorial Pacific provide monthly resolved records of El Niño-Southern Oscillation activity over past centuries to millennia. However, calibration studies using in situ data to assess the relative contributions of warming and freshening to coral δ18O records are exceedingly rare. Furthermore, the fidelity of coral δ18O records under the most severe thermal stress events is difficult to assess. Here, we present six coral δ18O records and in situ temperature, salinity, and seawater δ18O data from Kiritimati Island (2°N, 157°W) spanning the very strong 2015/16 El Niño event. Local sea surface temperature (SST) anomalies of …
Effects Of Large Wood Restoration On Coho Salmon In A Northern California Watershed: A Before-After-Control-Impact Experiment, Natalie B. Okun
Effects Of Large Wood Restoration On Coho Salmon In A Northern California Watershed: A Before-After-Control-Impact Experiment, Natalie B. Okun
Cal Poly Humboldt theses and projects
Substantial time, money, and effort are invested in river and stream restoration projects to aid in the recovery of imperiled salmonid populations, but there is little evidence that these efforts have had lasting positive impacts on juvenile fish growth and survival. To assess the effectiveness of large woody debris (LWD) restoration, which is one of the most common restoration practices, I evaluated the growth and survival response of endangered Central California Coast coho salmon (Oncorhynchus kisutch) in a paired watershed before-after impact-control (BACI) study. To determine if LWD supplementation influenced coho salmon growth and survival, two neighboring, similar …
Factors Influencing Aquatic Invertebrate Diversity In Mine Pit Lakes Along The Mesabi Iron Range, Jeremy Laurich
Factors Influencing Aquatic Invertebrate Diversity In Mine Pit Lakes Along The Mesabi Iron Range, Jeremy Laurich
Journal of Earth and Life Science
Restoration of mine pit lakes for recreation is going to be very important for the future of Minnesota’s Mesabi Iron Range area. As many as 250 lakes will need to be restored in the future along this 100-kilometer-long swath of mining country. Information regarding the organisms that currently inhabit these lakes is important for future restorations to be a success. The focus of this study was to identify the types of aquatic invertebrates present in pit lakes and to identify some of the factors that influence their abundance and diversity. During this study, invertebrate samples were taken along the shore …
Is There A Relationship Between Aquatic Vegetation And Amphipod Stocking Mortality?, Alaina Taylor
Is There A Relationship Between Aquatic Vegetation And Amphipod Stocking Mortality?, Alaina Taylor
Journal of Earth and Life Science
Amphipod occurrence and abundance has declined in the Prairie Pothole Region (PPR). Wildlife managers have stocked prairie pothole wetlands with Gammarus lacustris since 2018 to establish self-sustaining populations. G. lacustris have been detected in only 2 of 22 stocked basins, suggesting that they have died or failed to reproduce in most stocking attempts. Aquatic plant surveys were conducted in stocked wetlands and compared to data from surveys of wetlands with naturally occurring populations to understand if G. lacustris would be expected to survive in stocked wetlands based on characteristics of the aquatic vegetation communities. SAV coverage was significantly higher in …
Bow Lake (Station 3 - Bennett) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Bow Lake (Station 3 - Bennett) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Bow Lake, Station 3 Bennett (Barrington and Northwood, NH) for 2021.
Lovell Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Lovell Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Lovell Lake (Sanbornville, NH) for sampling efforts in 2021.
Townhouse Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Townhouse Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Townhouse Pond (of Milton Three Ponds) in Milton, NH in 2021.
Sunset Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Sunset Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Sunset Lake in Hampstead, NH in 2021.
Hazardous Base Surges Of Taal’S 2020 Eruption, Alfredo Mahar Francisco A. Lagmay, Maria Ines Rosana Balangue-Tarriela, Mario Aurelio, Rochelle Haidee D. Ybanez, A Bonus-Ybanez, J Sulapas, Ma Criselda Baldago, Dm Sarmiento, H Cabria, R Rodolfo, Dj Rafael, Jr Trinidad, E Obille Jr, N Rosell Ii
Hazardous Base Surges Of Taal’S 2020 Eruption, Alfredo Mahar Francisco A. Lagmay, Maria Ines Rosana Balangue-Tarriela, Mario Aurelio, Rochelle Haidee D. Ybanez, A Bonus-Ybanez, J Sulapas, Ma Criselda Baldago, Dm Sarmiento, H Cabria, R Rodolfo, Dj Rafael, Jr Trinidad, E Obille Jr, N Rosell Ii
Environmental Science Faculty Publications
After 43 years of repose, Taal Volcano erupted on 12 January 2020 forming hazardous base surges. Using field, remote sensing (i.e. UAV and LiDAR), and numerical methods, we gathered primary data to generate well-constrained observed information on dune bedform characteristics, impact dynamic pressures and velocities of base surges. This is to advance our knowledge on this type of hazard to understand and evaluate its consequences and risks. The dilute and wet surges traveled at 50-60 ms−1 near the crater rim and decelerated before making impact on coastal communities with dynamic pressures of at least 1.7 kPa. The base surges killed …
Mendums Pond 2021 Water Quality Highlight Report, Robert Craycraft, Amanda Mcquaid
Mendums Pond 2021 Water Quality Highlight Report, Robert Craycraft, Amanda Mcquaid
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Mendums Pond (Barrington, NH) for 2021.
Crescent Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Crescent Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Crescent Lake in Wolfeboro, NH in 2021.
Swains Lake (Site A) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Swains Lake (Site A) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Swains Lake (Station A) in Barrington, NH in 2021.
Silver Lake (Madison) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Silver Lake (Madison) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Silver Lake in Madison, NH (station 2 - deep site) in 2021.
North River Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
North River Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for North River Lake in Barrington, NH in 2021.
Bow Lake (Nearshore Sites) 2021 Water Quality Highlight Report, Robert Craycraft, Amanda Mcquaid
Bow Lake (Nearshore Sites) 2021 Water Quality Highlight Report, Robert Craycraft, Amanda Mcquaid
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Bow Lake, Nearshore Sites (Barrington and Northwood, NH) for 2021.
Evaluation Of A Low-Cost Uas And Phenocams For Measuring Grapevine Greenness, Timothy J. Hoheneder
Evaluation Of A Low-Cost Uas And Phenocams For Measuring Grapevine Greenness, Timothy J. Hoheneder
Graduate Theses, Dissertations, and Problem Reports (ETD)
Unpersoned aerial systems (UAS) could provide winegrowers with the potential to monitor vineyard productivity with ultra-high-resolution imagery and low operational costs. This ability could prove particularly valuable in the challenging cool-climate viticultural areas of Appalachia. Especially in this mountainous region of increasingly variable microclimates, there could be of great value from an ability to use UAS-measured greenness to monitor wine grape phenology and predict harvest quality and quantity. In this study, I assess how UAS-measured greenness relates to three complementary measures of field-based: leaf angle measurements, phenocam measured greenness, and leaf spectral measurements of greenness. After correlating these field-based measures …
Effects Of Multiple Stressors On Aquatic Macroinvertebrate Communities In A Mixed-Land-Use Watershed, Joellen Stivala
Effects Of Multiple Stressors On Aquatic Macroinvertebrate Communities In A Mixed-Land-Use Watershed, Joellen Stivala
Graduate Theses, Dissertations, and Problem Reports (ETD)
As urbanization continues, there is a need to identify and understand environmental stressors that impact stream condition in mixed-land-use watersheds. This study analyzed four years of aquatic macroinvertebrate community and environmental data collected from ten sites located at the mouths of first-order tributaries and along the main stem creek of a 23-km2, mixed-land-use watershed in central Appalachia. The main objectives were to 1) determine stream ecological integrity by analyzing stream macroinvertebrate taxonomic and trait-based composition and 2) assess which of 23 environmental variables explained significant variability in common community composition metrics (WVSCI, GLIMPSS, Biotic Index, % clingers, etc.). …
Experiential Learning In Soil Science: Evaluating Soil Quality In South Wollo, Ethiopia, Melissa Allen, Martha Mamo, Shimelis Beyene, Teshome Regassa, Gandura O. Abagandura, Solomon Abreha, Anthony James Mucia, Tsegaye Tadesse
Experiential Learning In Soil Science: Evaluating Soil Quality In South Wollo, Ethiopia, Melissa Allen, Martha Mamo, Shimelis Beyene, Teshome Regassa, Gandura O. Abagandura, Solomon Abreha, Anthony James Mucia, Tsegaye Tadesse
National Drought Mitigation Center: Faculty Publications
This study abroad program provided an opportunity to enhance the international experience and research skills of University of Nebraska-Lincoln (UNL) students within a multidisciplinary team’s research-education goal on improving food security in Ethiopia. The experiential study component of the project included preparatory sessions during the Fall 2015 Semester at the UNL followed by a four- to five-week fieldwork experience in Ethiopia. Teams from the UNL and an Ethiopian university participated in survey data collection and field soil evaluations from farms in the Gerado area of South Wollo, Ethiopia. Having students interact with farmers increased student self-confidence and enhanced their leadership …
Chocorua Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Chocorua Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Chocorua Lake (Station 1 - South, Tamworth, NH) in 2021.
Baboosic Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Baboosic Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Baboosic Lake (Amherst and Merrimack, NH) for 2021.
Province Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Province Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Province Lake (Wakefield, NH and Parsonsfield, ME) for 2021.
Great East Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Great East Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Great East Lake (Wakefield, NH; Acton , ME) for sampling efforts in 2021.
Belleau Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Belleau Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Belleau Lake in Wakefield, NH for 2021.
Shaws Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Shaws Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Shaws Pond in New Durham, NH in 2021.
Marsh Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Marsh Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Marsh Pond in New Durham, NH in 2021.
Marchs 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Marchs 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Marchs Pond in New Durham, NH in 2021.
Jones Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Jones Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Jones Pond in New Durham, NH (Stations 3 - Deep) in 2021.
Downing Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Downing Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Downing Pond in New Durham, NH (Station 8 - Deep Site) in 2021.
Mirror Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Mirror Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Mirror Lake in Tuftonboro and Wolfeboro, NH (Station 3 - Deep Point) in 2021.
Depot Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
Depot Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Depot Pond (of Milton Three Ponds) in Milton, NH in 2021.