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Records 1 to 25 of 386

Application-specific optimal model weighting of global climate models: A red tide example
(JOURNAL) [Published : Dec 01, 2022]
Global climate models (GCMs) and Earth system models (ESMs) provide many climate services with environmental relevance. The High Resolution Model Intercomparison Project (HighResMIP) of the Coupled Model Intercomparison Project Phase 6 (CMIP6) provides model runs of GCM...
Earth system models for regional environmental management of red tide: Prospects and limitations of current generation models and next generation development
(JOURNAL) [Published : Apr 19, 2022]
Earth system models (ESMs) serve as a unique research infrastructure for quality climate services, yet their application for environmental management at regional scale has not yet been fully explored. The unprecedented resolution and model fidelity of the Coupled Model Intercompa...
Projected Climate and Hydroregime Variability Constrain Ephemeral Wetland-Dependent Amphibian Populations in Simulations of Southern Toads
(JOURNAL) [Published : Jun 17, 2022]
Amphibian populations are threatened by multiple potential stressors, including environmental variability and climate-related changes in habitat availability.  Ecological risk assessment of amphibians ideally should encompass the appropriate spatial and temporal scale to ade...
Laying it on thick: Ecosystem effects of sediment placement on a microtidal Rhode Island salt marsh
(JOURNAL) [Published : Sep 06, 2022]
Heightened recognition of impacts to coastal salt marshes from sea-level rise has led to expanding interest in using thin-layer sediment placement (TLP) as an adaptation tool to enhance future marsh resilience. Building on successes and lessons learned from the Gulf and southeast...
Runnels mitigate marsh drowning in microtidal salt marshes
(JOURNAL) [Published : Nov 03, 2022]
As a symptom of accelerated sea level rise and historic impacts to tidal hydrology from agricultural and mosquito control activities, coastal marshes in the Northeastern U.S. are experiencing conversion to open water through edge loss, widening and headward erosion of tidal chann...
Temporal Stability of Seagrass Extent, Leaf Area, and Carbon Storage in St. Joseph Bay, Florida: a Semi-automated Remote Sensing Analysis
(JOURNAL) [Published : Nov 01, 2022]
Seagrasses are globally recognized for their contribution to blue carbon sequestration. However, accurate quantification of their carbon storage capacity remains uncertain due, in part, to an incomplete inventory of global seagrass extent and assessment of its temporal variabilit...
A Classification Framework to Assess Ecological, Biogeochemical, and Hydrologic Synchrony and Asynchrony
(JOURNAL) [Published : Aug 01, 2022]
Ecosystems in the Anthropocene face pressures from multiple, interacting forms of environmental change. These pressures, resulting from land use change, altered hydrologic regimes, and climate change, will likely change the synchrony of ecosystem processes as distinct components ...
Fuel layer specific pollutant emission factors for fire prone forest ecosystems of the western U.S. and Canada
(JOURNAL) [Published : Sep 21, 2022]
Wildland fires are a major source of gases and aerosols, and the production, dispersion, and transformation of fire emissions have significant ambient air quality impacts and climate interactions. The increase in the wildfire area burned and severity across the US and Canada in r...
First evaluation of ballast water management systems on operational ships for minimizing introductions of nonindigenous zooplankton
(JOURNAL) [Published : Sep 01, 2022]
Ballast water is a leading pathway for the global introduction of aquatic nonindigenous species. Most international ships are expected to install ballast water management systems (BWMS) by 2024 to treat ballast water before release. This study examines if ballast water disch...
Nitrogen and Sulfur Deposition Reductions Projected to Partially Restore Forest Soil Conditions in the US Northeast, While Understory Composition Continues to Shift with Future Climate Change
(JOURNAL) [Published : Sep 05, 2022]
We used a dynamic soil-vegetation model (ForSAFE-Veg) to simulate responses to future scenarios of atmospheric deposition and climate change across 23 Northeastern hardwood stands. Specifically, we simulated soil percent base saturation, acid neutralizing capacity (ANC), nitrate ...
Valuation of long-term coastal wetland changes in the U.S.
(JOURNAL) [Published : Jul 01, 2022]
This study estimates an ensemble of future changes in coastal wetland areas considering both sea level rise, future greenhouse gas emissions, and accretion rate uncertainty, using outputs from the National Ocean and Atmospheric (NOAA) marsh migration model.
Natural and anthropogenic controls on lake water-level decline and evaporation-to-inflow ratio in the conterminous US
(JOURNAL) [Published : Jul 01, 2022]
Lake hydrology is integral to lake ecological condition, but human-related water needs and changing climate conditions may alter hydrology beyond natural ranges. Separating natural and human effects can support lake management and assessment and requires a clear conceptual unders...
Ocean acidification but not nutrient enrichment reduces grazing and alters diet preference in Littorina littorea
(JOURNAL) [Published : Aug 15, 2022]
Ocean acidification and eutrophication have direct, positive effects on the growth of many marine macroalgae, potentially resulting in macroalgal blooms and shifts in ecosystem structure and function. Enhanced growth of macroalgae, however, may be controlled by the presence of gr...
Modeled vegetation community trajectories: Effects from climate change, atmospheric nitrogen deposition, and soil acidification recovery
(JOURNAL) [Published : Jul 28, 2022]
Forest understory plant communities in the United States are diverse and often sensitive to changes in climate and atmospheric inputs of nitrogen (N) caused by air pollution. Recently, understory vegetation response functions (expressed as Probability of Occurrence of Plant Speci...
Property values and cyanobacterial algal blooms: Evidence from satellite monitoring of Inland Lakes
(JOURNAL) [Published : Sep 01, 2022]
We examine how the frequency of cyanobacterial harmful algal blooms (cyanoHABs) generates economic costs through the mechanism of residential property values. We assemble nearly two decades worth of nationwide data on property sales near US inland lakes along as well as...
Observed Changes in the Frequency, Intensity, and Spatial Patterns of Nine Natural Hazards in the United States from 2000 to 2019
(JOURNAL) [Published : Apr 01, 2022]
There is increasing evidence from across the globe that climate change results in changes in the frequency, location, and impact of natural hazards. Much of this evidence is conceptual, inferential, or simply assumed. To provide objective support to confirm these hypotheses, we c...
Assessing placement bias of the global river gauge network
(JOURNAL) [Published : Jul 01, 2022]
Knowing where and when rivers flow is paramount to managing freshwater ecosystems. Yet stream gauging stations are distributed sparsely across rivers globally and may not capture the diversity of fluvial network properties and anthropogenic influences. Here we evaluate the placem...
Flow intermittence and ecosystem services in rivers of the Anthropocene
(JOURNAL) [Published : Jan 01, 2018]
Intermittent rivers and ephemeral streams (IRES) are watercourses that cease flow at some point in time and space. Arguably Earth's most widespread type of flowing water, IRES are expanding where Anthropocenic climates grow drier and human demands for water escalate. However, IR...
Spatiotemporal variability in Swedish lake ecosystems
(JOURNAL) [Published : Mar 21, 2022]
Studying ecosystem dynamics is critical to monitoring and managing linked systems of humans and nature. Due to the growth of tools and techniques for collecting data, information on the condition of these systems is more widely available. While there are a variety of approaches f...
How deep to dig: effects of web-scraping search depth on hyperlink network analysis of environmental stewardship organizations
(JOURNAL) [Published : Jun 06, 2022]
Social network analysis (SNA) tools and concepts are essential for addressing many environmental management and sustainability issues. One method to gather SNA data is to scrape them from environmental organizations’ websites. Web-based research can provide important opport...
Satellites quantify the spatial extent of cyanobacterial blooms across the United States at multiple scales
(JOURNAL) [Published : Jul 01, 2022]
Previous studies indicate that cyanobacterial harmful algal bloom (cyanoHAB) frequency, extent, and magnitude have increased globally over the past few decades. However, little quantitative capability is available to assess these metrics of cyanoHABs across broad geographic scale...
Linking multi-media modeling with machine learning to assess and predict lake chlorophyll a concentrations
(JOURNAL) [Published : Dec 13, 2021]
Eutrophication and excessive algal growth pose a threat on aquatic organisms and the health of the public, environment, and the economy. Understanding what drives excessive algal growth can inform mitigation measures and aid in advance planning to minimize impacts....
Biological assessment of western USA sandy bottom rivers based on modeling historical and current fish and macroinvertebrate data
(JOURNAL) [Published : May 02, 2022]
Biological monitoring is important for assessing the ecological condition of surface waters. However, there are challenges in determining what constitutes reference conditions, what assemblages should be used as indicators, and how assemblage data should be converted into quantit...
A review of climate change effects on practices for mitigating water quality impacts
(JOURNAL) [Published : Mar 22, 2022]
Best Management Practices (BMPs) are used to mitigate the impacts of human activities on land and water resources. Most BMPs function via physical, chemical, and biological processes that are strongly dependent on weather and climate. Changing climatic conditions can lead to incr...
Self-Reported Effects of the Covid-19 Pandemic on Stewardship Organizations and Their Activities in Southeast New England, USA
(JOURNAL) [Published : Jan 06, 2022]
In many communities, regions, or landscapes, there are numerous environmental groups working across different sectors and creating stewardship networks that shape the environment and the benefits people derive from it. The make-up of these networks can vary, but generally include...