The Birds And The Trees: Quantifying The Drivers Of Whitebark Pine Decline And Clark's Nutcracker Habitat Use In Glacier National Park,
2023
The University Of Montana
The Birds And The Trees: Quantifying The Drivers Of Whitebark Pine Decline And Clark's Nutcracker Habitat Use In Glacier National Park, Vladimir Kovalenko
Graduate Student Theses, Dissertations, & Professional Papers
Whitebark pine (Pinus albicaulis), recently listed as threatened under the Endangered Species Act, is in steep decline in Glacier National Park, Montana, USA due to the non-native pathogen Cronartium ribicola, causal agent of the fatal disease white pine blister rust. A sample of the park’s population suggests that approximately 70 percent of whitebark pines have died, while 65 percent of the remaining trees are infected. Using landscape and climate variables, we show how geographic location, elevation, aspect, solar radiation, relative humidity, and snowpack interact with tree diameter to affect mortality, disease incidence, cone production, and regeneration. We also examine how …
A Machine Learning Approach To Classify Open Water And Ice Cover On Slave River Delta,
2023
Wilfrid Laurier University
A Machine Learning Approach To Classify Open Water And Ice Cover On Slave River Delta, Ida Moalemi
Theses and Dissertations (Comprehensive)
Seasonal temperature trend and ice phenology in Great Slave lake (GSL), are strongly influenced by warmer inflow from Slave river. The Slave river flows to GSL through Slave river delta (SRD), bringing a rise in temperature that triggers the ice break-up process of the lake. Slave river discharge is subject to multiple stressors including climate warming and upstream water activities, which in turn, directly affects the GSL break-up process. Consequently, monitoring the break-up process at SRD, where the river connects to the lake, serves as an indicator to better understand the cascading effects on GSL ice break-up. This research aims …
Winter Dynamics Of Storm Water Management Ponds And Winter Tolerance In Three Aquatic Plant Species,
2023
Wilfrid Laurier University
Winter Dynamics Of Storm Water Management Ponds And Winter Tolerance In Three Aquatic Plant Species, Patrick Strzalkowski
Theses and Dissertations (Comprehensive)
The vast majority of the research into the performance of stormwater management ponds (SWMPs) has been performed in warm regions or during the warmer seasons in temperate regions. It is presumed that SWMPs are inactive in the winter as any potential stormwater is trapped in snow and ice. The main goal of this thesis was to test this presumption and to study the dynamics and performance of three SWMPs during the winter. Remote water level loggers were installed into the three SWMPs and daily grab samples from the influents and effluents were taken and analyzed for total phosphorus (TP), chloride, …
Assessment Of Stream Metabolism And Associated Environmental Drivers In The Greiner Lake Watershed, Nunavut, Canada,
2023
Wilfrid Laurier University
Assessment Of Stream Metabolism And Associated Environmental Drivers In The Greiner Lake Watershed, Nunavut, Canada, Nicole Gotkowski
Theses and Dissertations (Comprehensive)
Stream metabolism is an ecological process that can be monitored to assess carbon cycling and productivity within a stream ecosystem. GPP (gross primary productivity) is measured as oxygen produced by autotrophs and ER (ecosystem respiration), which is measured by oxygen depleted by all living organisms. Complications arise when estimating GPP and ER in the Arctic because most methods require a period of darkness when GPP ceases, however, summer regimes of photosynthetically active radiation (PAR) do not reach zero. Furthermore, natural diffusion of oxygen from the atmosphere (k) must be accounted for but this requires extensive field work, thus posing problems …
Contrasting Seasonal Cycling Of Arsenic In A Series Of Subarctic Shield Lakes With Different Morphometric Properties,
2023
Wilfrid Laurier University
Contrasting Seasonal Cycling Of Arsenic In A Series Of Subarctic Shield Lakes With Different Morphometric Properties, Jeremy Harbinson
Theses and Dissertations (Comprehensive)
The subarctic shield near Yellowknife, Northwest Territories (NWT), is populated with thousands of small lakes (<1.5 km2) and several large lakes. Historic mining activities in the region have left a legacy of environmental impacts and widespread arsenic (As) contamination in both aquatic and terrestrial environments. In particular, several small subarctic lakes near Yellowknife have been previously documented to be contaminated with high levels of As. Subarctic lakes are characterized by seasonal ice-cover that can persist for more than half of the year, yet little is known about the under-ice spatial and seasonal dynamics of As cycling. The objective of …
Using Micro Satellites To Assess The Impact Of Algae Growth On Global Warming,
2023
Embry-Riddle Aeronautical University
Using Micro Satellites To Assess The Impact Of Algae Growth On Global Warming, Hursh, Vanessa
Student Works
Data gathered from microsatellites can inform policymakers and environmental agencies about the impact of algae on global warming. It can guide the development of strategies to mitigate or harness the potential benefits of algae growth.
The Dynamic Relationship Between Permafrost And Landcover In Northwestern Canada’S Discontinuous Permafrost Zone,
2023
Wilfrid Laurier University
The Dynamic Relationship Between Permafrost And Landcover In Northwestern Canada’S Discontinuous Permafrost Zone, Olivia Carpino
Theses and Dissertations (Comprehensive)
Northwestern Canada’s subarctic is among the most impacted regions in the world as it is experiencing rapid climatic and environmental change. As a result, northwestern Canada has been experiencing region-wide permafrost thaw and disappearance, both of which are also occurring at unprecedented rates. Permafrost temperatures in the Taiga Plains have been warming steadily over the last several decades, which has been particularly detrimental across its lower latitudes of the discontinuous permafrost zone where the permafrost is already relatively thin and warm. These factors indicate that permafrost in the southern Taiga Plains may be in a state of disequilibrium with the …
Gw Monitoring,
2022
Montana Tech Library
Gw Monitoring, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Ecological Protection Alone Is Not Enough To Conserve Ecosystem Carbon Storage: Evidence From Guangdong, China,
2022
Ministry of Natural Resources, China
Ecological Protection Alone Is Not Enough To Conserve Ecosystem Carbon Storage: Evidence From Guangdong, China, Lihan Cui, Wenwen Tang, Sheng Zheng, Ramesh P. Singh
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
The increase in atmospheric CO2 caused by land use and land cover change (LUCC) is one of the drivers of the global climate. As one of the most typical high-urbanization areas, the ecological conflicts occurring in Guangdong Province warrant urgent attention. A growing body of evidence suggests LUCC could guide the future ecosystem carbon storage, but most LUCC simulations are simply based on model results without full consistency with the actual situation. Fully combined with the territorial spatial planning project and based on the land use pattern in 2010 and 2020, we have used the Markov and Patch-generating Land …
Rapid Bacterial And Fungal Successional Dynamics In First Year After Chaparral Wildfire,
2022
University of California, Riverside
Rapid Bacterial And Fungal Successional Dynamics In First Year After Chaparral Wildfire, M. Fabiola Pulido-Chavez, James W. J. Randolph, Cassandra A. Zalman, Loralee Larios, Peter M. Homyak, Sydney I. Glassman
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
The rise in wildfire frequency and severity across the globe has increased interest in secondary succession. However, despite the role of soil microbial communities in controlling biogeochemical cycling and their role in the regeneration of post-fire vegetation, the lack of measurements immediately post-fire and at high temporal resolution has limited understanding of microbial secondary succession. To fill this knowledge gap, we sampled soils at 17, 25, 34, 67, 95, 131, 187, 286, and 376 days after a southern California wildfire in fire-adapted chaparral shrublands. We assessed bacterial and fungal biomass with qPCR of 16S and 18S and richness and composition …
2022 Draft Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Organic Pollutant Surface Water Sampling Quality Assurance Project Plan (Qapp),
2022
Montana Tech Library
2022 Draft Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Organic Pollutant Surface Water Sampling Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Comparison Of Sieved Soil Sample Results From Butte-Silver Bow Multi-Pathway Residential Metals Abatement Program: 250 Μm And 150 Μm Sieved Samples For Lead And Arsenic Enrichment Determination Atlantic Richfield Company Butte, Montana,
2022
Montana Tech Library
Comparison Of Sieved Soil Sample Results From Butte-Silver Bow Multi-Pathway Residential Metals Abatement Program: 250 Μm And 150 Μm Sieved Samples For Lead And Arsenic Enrichment Determination Atlantic Richfield Company Butte, Montana, Ramboll, Environmental Standards, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Pariette Wetlands Water, Sediment And Plant Total Selenium Concentration,
2022
Utah State University
Pariette Wetlands Water, Sediment And Plant Total Selenium Concentration, Colleen P. Jones, Paul R. Grossl, Astrid R. Jacobson
Browse all Datasets
We measured total Selenium in plants from July through November of 2012 and in water, macroinvertebrates, plants, and sediments from July of 2014 from Pariette Wetlands, Utah, U.S.A. to test for spatial, temporal, plant species and plant tissue distribution of Selenium.
Possible Overestimation Of Nitrogen Dioxide Outgassing During The Beirut 2020 Explosion,
2022
King Fahd University of Petroleum, and Minerals
Possible Overestimation Of Nitrogen Dioxide Outgassing During The Beirut 2020 Explosion, Ashraf Farahat, Nayla El-Kork, Ramesh P. Singh, Feng Jing
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
On 4 August 2020, a strong explosion occurred near the Beirut seaport, Lebanon and killed more than 200 people and damaged numerous buildings in the vicinity. As Amonium Nitrate (AN) caused the explosion, many studies claimed the release of large amounts of NO2 in the atmosphere may have resulted in a health hazard in Beirut and the vicinity. In order to reasonably evaluate the significance of NO2 amounts released in the atmosphere, it is important to investigate the spatio-temporal distribution of NO2 during and after the blast and compare it to the average day-to-day background emissions from …
Scientists And Activists Work To Save The Planet,
2022
Craig Newmark Graduate School of Journalism
Scientists And Activists Work To Save The Planet, Myriam G. Vidal Valero
Capstones
Climate change and human intervention in nature are affecting people, ecosystems and ways of living all over the world. This portfolio of environmental pieces showcases the dire consequences of not addressing these issues, how solutions can be reached and the challenges facing those who try to change things.
Residential Metals Abatement Program – Interior School Soil ‐ Remedial Action Work Plan – Butte High School,
2022
Atlantic Richfield Company
Residential Metals Abatement Program – Interior School Soil ‐ Remedial Action Work Plan – Butte High School, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Residential Metals Abatement Program – Interior School Soil ‐ Remedial Action Work Plan – Butte High School,
2022
Atlantic Richfield Company
Residential Metals Abatement Program – Interior School Soil ‐ Remedial Action Work Plan – Butte High School, Mike Mcanulty
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Approval Letter For The Revised Residential Metals Abatement Program (Rmap), Interior School Soils Remedial Action Work Plan (Rawp), Butte High School (Dated November 17, 2022),
2022
Environmental Protection Agency
Approval Letter For The Revised Residential Metals Abatement Program (Rmap), Interior School Soils Remedial Action Work Plan (Rawp), Butte High School (Dated November 17, 2022), Nikia Greene
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit (Bpsou) – Temporary Construction Surface Water Performance Standards Variance Request For Fresow Projects,
2022
Management Service Company, ARCO
Butte Priority Soils Operable Unit (Bpsou) – Temporary Construction Surface Water Performance Standards Variance Request For Fresow Projects, Josh Bryson
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Final 2022 Residential Metals Abatement Program (Rmap) Koprivica Park Soil Remedial Action Work Plan (Rawp),
2022
Montana Tech Library
Final 2022 Residential Metals Abatement Program (Rmap) Koprivica Park Soil Remedial Action Work Plan (Rawp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
