Related Topics: Ecosystems Research

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Records 101 to 125 of 9578 records about 'Ecosystems'

2023
Effective Early Treatment of Microcystis Exponential Growth and Microcystin Production with Hydrogen Peroxide and Hydroxyapatite
(JOURNAL) [Published : Jan 01, 2023]
Mitigating cyanotoxin production is essential to protecting aquatic ecosystems and public health. However, current harmful cyanobacterial bloom (HCB) control strategies have significant shortcomings. Because predicting HCBs is difficult, current HCB control strategies are employe...
Effects of Air Pollutants from Wildfires on Downwind Ecosystems: Observations, Knowledge Gaps, and Questions for Assessing Risk
(JOURNAL) [Published : Sep 28, 2023]
Wildfires have increased in frequency and area burned, trends expected to continue with climate change. Among other effects, fires release pollutants into the atmosphere, representing a risk to human health and downwind terrestrial and aquatic ecosystems. While human health risks...
Effects of Extreme Precipitation on Hydrologic Design of Road-Stream Crossing Structures and their Vulnerability Assessments on US Forest Service Lands
(PRESENTATION) [Presented : Mar 24, 2023]
The goal of the project is to assess the precipitation intensity duration frequencies (PIDF) and their applications in sizing of road-stream crossing structures, experiencing increased peak-flow magnitudes resulting from the growing intensity of extreme precipitation events on Fo...
Emerald ash borer invasion of riparian forests alters organic matter and bacterial subsidies to south Michigan headwater streams
(JOURNAL) [Published : Feb 01, 2023]
Emerald ash borer (EAB) has killed millions of ash trees in the United States and Canada, yet impacts on terrestrial-aquatic linkages are largely unknown. Ash tree death along streams creates canopy gaps, increasing light to riparian plants and potentially affecting organic matte...
Enhancing environmental benefits and resilience in Brownfields
(PRESENTATION) [Presented : Aug 11, 2023]
Summary: Please join us for talks and discussion previewing tools and innovative approaches to enhancing resilience and sustainability in Brownfields. Attendees will leave this session with actionable takeaway messages including Brownfields applications of cutting-edge tools rece...
Environmental DNA Early Detection Monitoring Identifies an Advancing Round Goby Invasion Front
(PRESENTATION) [Presented : Aug 24, 2023]
Invasive species threaten the biodiversity, structure, and function of aquatic ecosystems. Once established, eradicating invasive species is an arduous task, imposing a significant financial burden on environmental management entities. Early detection of invasive species is cruci...
Environmental trade-offs Offs when using Regenerative Stormwater Conveyance for Managing Nutrients in Urban Ecosystems
(PRESENTATION) [Presented : Feb 23, 2023]
Hydrologic modifications in urban ecosystems impact water quality via soil compaction, impervious surface cover, drainage, and channelization.  Urban stream restoration strategies that are designed to regain lost ecosystem function such as nutrient uptake may have unintended...
Estimates of biomass reductions of ozone sensitive herbaceous plants in California
(JOURNAL) [Published : Jun 20, 2023]
Exposure to tropospheric ozone pollution impairs photosynthesis and growth in plants and this can have consequences for ecosystems. However, exposure-response research in the United States (U.S.) has historically focused on trees and crops, and less attention has been g...
Estimating biotic integrity to capture existence value of freshwater ecosystems
(JOURNAL) [Published : Apr 24, 2023]
The US Environmental Protection Agency (EPA) uses a water quality index (WQI) to estimate benefits of proposed Clean Water Act regulations. The WQI is relevant to human use value, such as recreation, but may not fully capture aspects of nonuse value, such as existence value. Here...
Estimating the Vulnerability of the Property Protection Ecosystem Service of Tidal Wetlands to Climate Change.
(PRESENTATION) [Presented : Nov 16, 2023]
Stressors such as climate change, pollution, and development affect ecosystem condition and consequently, they affect the goods and services that people use, appreciate, or enjoy that are produced by those ecosystems (i.e., ecosystem services, ES). Anticipating how ES are affecte...
Evaluating the effects of climate change and chemical, physical, and biological stressors on nearshore coral reefs: A case study in the Great Barrier Reef, Australia
(JOURNAL) [Published : Nov 29, 2023]
An understanding of the combined effects of climate change (CC) and other anthropogenic stressors, such as chemical exposures, is essential for improving ecological risk assessments of vulnerable ecosystems. In the Great Barrier Reef, coral reefs are under increasingly severe dur...
Extreme Precipitation Intensity-Duration-Frequency and Design-Discharge Estimates for Forest Road-Stream Crossings Design and Ecological Applications
(PRESENTATION) [Presented : Jun 05, 2023]
Developing Precipitation-Intensity-Duration-Frequency (Onsite-PIDF) and design discharge estimates using onsite long-term datasets to accommodate ongoing effects of climate change, is crucial in the design and planning of climate-resilient forest road-stream crossing structures (...
Field Testing US M-AMBI Against Regional Benthic Indices of Biotic Integrity in a Northern Gulf of Mexico Estuary: Pensacola Bay (Florida, USA) 
(PRESENTATION) [Presented : Apr 28, 2023]
Many benthic indices have been created in the last two decades for monitoring coastal ecosystems, however direct comparisons between indices are often difficult. To address this, M-AMBIUS has replaced regional indices used by the US Environmental Protection Agency. Objectives of ...
Five State Factors Control Progressive Stages of Freshwater Salinization Syndrome
(JOURNAL) [Published : Feb 01, 2023]
Major ion concentrations in freshwaters are increasing in many world regions due to diverse causes such as:  land use change, resource extraction, climate change, saltwater intrusion, and accelerated weathering.  Freshwater Salinization Syndrome (FSS) refers to the inte...
Freshwater Salinization Syndrome Alters Nitrogen Transport in Urban Watersheds
(JOURNAL) [Published : Nov 14, 2023]
Anthropogenic salt inputs have increasingly impacted many streams in the U.S. for more than a century. Urban stream salinity is often chronically elevated and punctuated by episodic salinization events after applications of road salt, which can last hours to days after snowstorms...
Genomic Characterization and Wetland Occurrence of a Novel Campylobacter Isolate from Canada Geese
(JOURNAL) [Published : Mar 03, 2023]
Populations of resident, non-migratory Canada geese are rapidly increasing. Canadian geese are known to transmit viral and bacterial diseases, posing a possible threat to human health. The most prevalent pathogens vectored by geese are Campylobacter species, yet the current under...
Global change scenarios in coastal deltas and their sustainable development implications
(JOURNAL) [Published : Sep 01, 2023]
Deltas play a critical role in the ambition to achieve global sustainable development given their relatively large shares in population and productive croplands, as well as their precarious low-lying position between upstream river basin development and rising seas. The large pre...
Government Legislation and Regulation in the United States
(BOOK CHAPTER) [Published : Nov 03, 2023]
Although many laws governing human activities have indirect impacts on biodiversity, this article summarizes the major laws and regulations that directly target biodiversity protection by influencing how genes, species, habitats and ecosystems are used and conserved. While the le...
Hazardous and contaminated sites within salt marsh migration corridors in Rhode Island, USA.
(JOURNAL) [Published : Apr 01, 2023]
As salt marshes attempt to migrate upland due to sea level rise, they will encounter many kinds of land development and infrastructure in highly populated, urbanized coastal communities. Hazardous and contaminated sites (HCSs) -- facilities and infrastructure that store...
High-frequency time series comparison of Sentinel-1 and Sentinel-2 satellites for mapping open and vegetated water across the United States (2017–2021)
(JOURNAL) [Published : Feb 15, 2023]
Frequent observations of surface water at fine spatial scales will provide critical data to support the management of aquatic habitat, flood risk and water quality. Sentinel-1 and Sentinel-2 satellites can provide such observations, but algorithms are still needed that perform we...
Holding your breath for hypoxia monitoring tools? Applying M-AMBI in a northern Gulf of Mexico estuary
(PRESENTATION) [Presented : Nov 16, 2023]
The multivariate AMBI (M-AMBI) is an extension of the AZTI marine biotic index and is used to grade benthic habitat condition. It was adapted to the United States and adopted by the U.S. Environmental Protection Agency for monitoring coastal ecosystems at the national level, repl...
How does dissolved oxygen vary across riverscapes and what does it mean for fish and conservation?
(PRESENTATION) [Presented : Mar 03, 2023]
As we consider the effects of climate change on riverine ecosystems, water temperature often plays a starring role. We are increasingly able to characterize temperature through space and time and understand its physiological effects on fishes. Historically, empirical data on diss...
Human alterations of the global floodplains 1992–2019
(JOURNAL) [Published : Jul 28, 2023]
Floodplains provide critical ecosystem services; however, loss of natural floodplain functions caused by human alterations increase flood risks and lead to massive loss of life and property. Despite recent calls for improved floodplain protection and management, a comprehensive, ...
Identifying the drivers of aquatic ecosystem vulnerability to wildfires in the Pacific Northwest
(PRESENTATION) [Presented : Mar 03, 2023]
Wildfires can have complex effects on aquatic ecosystems that vary widely depending on the characteristics of the fire and the ecological context of the watershed, making predictions of fire effects on species of social and conservation interest, like salmonid fishes (Oncorhynchu...
Identifying the drivers of aquatic ecosystem vulnerability to wildfires in the Pacific Northwest - AGU 2023
(PRESENTATION) [Presented : Dec 15, 2023]
Wildfires can have complex effects on aquatic ecosystems that vary widely depending on the characteristics of the fire and the ecological context of the watershed, making predictions of fire effects on species of social and conservation interest, like salmonid fishes (Oncorhynchu...