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Records 1 to 25 of 1072 records from [ORD] about 'Ecosystems' published between 02/19/2014 and 02/19/2019

2019
Comparison of the Sustainability of Bean Production Systems Based on Emergy and Economic Analyses
(JOURNAL) [Published : Jan 01, 2019]
To address increasing demand during the last decades, bean producers have intensified agricultural activities by increasing the use of industrial inputs. Such intensification can impose environmental as well as economic risks to fragile ecosystems. Emergy and economic analyses we...
EnviroAtlas Educational Curriculum: Introduction to Ecosystem Services
(PUBLISHED REPORT) [Published : Feb 13, 2019]
This module promotes student discovery and learning about the interconnectedness of humans and ecosystems. Centered on ecosystem services, these six classroom-ready lessons incorporate use of EnviroAtlas to encourage a systems approach to thinking about the world. This approach p...
Environmental fate of multiwalled carbon nanotubes and graphene oxide across different aquatic ecosystems
(JOURNAL) [Published : Jan 01, 2019]
The industrial use and widespread application of carbon-based nanomaterials have caused a rapid increase in their production over the last decades. However, toxicity of these materials is not fully known and still being investigated for potential human and ecological health risks...
Land-Use/Land-Cover Change from Socio-Economic Drivers and Their Impact on Biodiversity in Nan Province, Thailand
(JOURNAL) [Published : Jan 26, 2019]
The rate of deforestation declined steadily in Thailand since the year 2000 due to economic transformation away from forestry. However, these changes did not occur in Nan Province located in northern Thailand. Deforestation is expected to continue due to high demand for forest pr...
Modeling bi-directional fluxes of NH3 in a forest ecosystem using SURFATM-NH3 model: A study with a dataset from a deciduous montane forest in the southeastern U.S.
(PRESENTATION) [Presented : Jan 11, 2019]
Ammonia (NH3) is the most abundant alkaline component in the atmosphere, is therefore of great importance in the neutralization of atmospheric acids and formation of aerosol particles. Numerous studies have been published investigating the effects of NH3 fluxes on agricultural ec...
Regenerative Stormwater Conveyance (RSC) for reducing nutrients in urban stormwater runoff depends upon carbon quantity and quality
(JOURNAL) [Published : Feb 01, 2019]
Regenerative stormwater conveyance (RSC), a relatively new stormwater management approach, is extensively implemented throughout the mid-Atlantic for nutrient control, but little is known of its pollutant reduction capabilities and controlling factors. This study examined effects...
Science needs for continued development of total nitrogen deposition budgets in the United States
(PUBLISHED REPORT) [Published : Jan 30, 2019]
This report describes the state of the science with respect to total Nr deposition budgets in the United States and the research needed to improve these budgets from both a measurement and modeling perspective. The document is intended to serve as a roadmap for research activiti...
Workshop on Pesticide Exposure Assessment Paradigm for Non-Apis Bees: Foundation and Summaries
(JOURNAL) [Published : Feb 13, 2019]
Current pesticide risk assessment practices use the honey bee, Apis mellifera L., as a surrogate to characterize the likelihood of chemical exposure of a candidate pesticide for all bee species. Bees make up a diverse insect group that provides critical pollination services to bo...
2018
13C isotopic signature and C concentration of soil density fractions illustrate reduced C allocation to subalpine grassland soil under high atmospheric N deposition
(JOURNAL) [Published : Oct 01, 2018]
We followed soil C fluxes in a subalpine grassland system exposed to experimentally increased atmospheric N deposition for 7 years. Earlier we found that, different from the plant productivity response, the bulk soil C stock increase was highest at the medium, not the high N inpu...
2012 Annual Report to Characterize the Ottawa River Using Physical, Biological, and Chemical Lines of Evidence
(PUBLISHED REPORT) [Published : Aug 01, 2018]
International concern about contaminated sediments is increasing as sustainable practices are needed to maintain water resources and waterways as important economic, commercial, recreational, and community resources. Sediments often serve as long-term sinks for legacy pollutants,...
A 72-HOUR STUDY WITH GRAPHENE OXIDE NANOPARTICLES AND EASTERN OYSTERS
(PRESENTATION) [Presented : Mar 18, 2018]
Graphene family nanomaterials (GFNs) are widely used in the field of electronics and biomedicine. Gaps in our knowledge about fate and toxicity of GFNs, such as graphene oxide (GO), raise concerns regarding their environmental impacts. Filter feeding bivalves, such as Crassostrea...
A Closer Look at U.S Environmental Protection Agency Facilities
(PRESENTATION) [Presented : Jun 05, 2018]
From the earliest days of public health, environmental protection has been fundamental to preventing disease and ensuring a healthy population. From John Snow and the Broad Street Pump to chlorinated drinking water in Jersey City, NJ, protecting the environment has been a core pu...
A Maieutic Exploration of Nudging Strategies for Regional Climate Applications Using the WRF Model
(JOURNAL) [Published : Aug 15, 2018]
The use of nudging in the Weather Research and Forecasting (WRF) Model to constrain regional climate downscaling simulations is gaining in popularity because it can reduce error and improve consistency with the driving data. While some attention has been paid to whether nudging i...
A National Approach to Assess Terrestrial Vertebrate Biodiversity within an Ecosystem Services Framework: An Example using the Reptiles and Amphibians of the Mojave Ecoregion
(PRESENTATION) [Presented : Aug 20, 2018]
Biodiversity is crucial for the functioning of ecosystems and the products and services from which we transform natural assets of the Earth for human survival, security, and well-being. The ability to assess, report, map, and forecast the life support functions of ecosystems is a...
A Science-Governance Partnership for Integrating Ecosystem Services into Puget Sound Restoration Planning
(PRESENTATION) [Presented : Dec 06, 2018]
Numerous studies have established that impacts from mounting population and climatic pressures are decreasing the capacity of coastal watersheds and estuaries to provide services essential to human health and well-being – clean drinking water, flood protection, habitat for ...
A linked land-sea modeling framework to inform ridge-to-reef management in high oceanic islands
(JOURNAL) [Published : Mar 14, 2018]
Declining natural resources have led to a cultural renaissance across the Pacific that seeks to revive customary ridge-to-reef management approaches to protect freshwater and restore abundant coral reef fisheries. Effective ridge-to-reef management requires improved understanding...
A method to detect discontinuities in census data
(JOURNAL) [Published : Oct 01, 2018]
The distribution of pattern across scales has predictive power in the analysis of complex systems. Discontinuity approaches remain a fruitful avenue of research in the quest for quantitative measures of resilience because discontinuity analysis provides an objective means of iden...
A simplified method for extracting microplastics in laboratory-cultured coral and water samples
(PRESENTATION) [Presented : Mar 12, 2018]
The deleterious effects of microplastic ingestion by marine organisms and the impacts across trophic levels are widely unknown. Due to the extensive ecological and socioeconomic benefits provided by coral reefs, investigating the impacts of microplastics on reef ecosystems is of ...
AOP-informed assessment of endocrine disruption in freshwater crustaceans
(PRESENTATION) [Presented : May 17, 2018]
To date, most research focused on developing more efficient and cost effective methods to predict toxicity have focused on human biology. However, there is also a need for effective high throughput tools to predict toxicity to other species that perform critical ecosystem functio...
Achieving SDGs [Sustainable Development Goals] and Engaging Higher Education Using EPA Tools
(PRESENTATION) [Presented : Oct 03, 2018]
The U.S. Environmental Protection Agency (EPA) provides a suite of freely available, web-based tools that assist diverse audiences, including higher education institutions, in tackling local and regional environmental problems, building capacity, and meeting their sustainability ...
Ada, OK Laboratory
(COMMUNICATION PRODUCT) [Published : Aug 14, 2018]
This fact sheet provides information about EPA's Ada, OK facility, Robert S. Kerr Environmental Research Center, and will be available to the public.
An evaluation of factors controlling the abundance of epiphytes on Zostera marina along an estuarine gradient in Yaquina Bay, Oregon, USA.
(JOURNAL) [Published : Aug 01, 2018]
Epiphytes on seagrass (Zostera marina) growing in the lower intertidal were examined along an estuarine gradient within Yaquina Bay, Oregon over a period of 4 years. The Yaquina Estuary receives high levels of nutrients from the watershed during the wet season and from the ocean...
Application of Decision Support Tools for Integrated Water Resources Management
(PRESENTATION) [Presented : Jun 24, 2018]
Integrated Water Resources Management (IWRM) involves “a process which promotes the coordinated development and management of water, land, and related resources in order to maximize the resultant economic and social welfare in an equitable manner without compromising the su...
Application of a density dependent logistic matrix model to investigate the effects of chemical stress and resource limitation on fish populations
(PRESENTATION) [Presented : Aug 10, 2018]
Matrix population models are useful tools for ecological risk assessment because they integrate effects across the life cycle, link endpoints observed in the individual and ecological risk to the population, and project outcomes for many generations in the future. The Atlantic ki...
Applying Biodiversity Metrics within an Ecosystem Services Framework to a Habitat Conservation Plan: a Case Study in Partner Engagement
(PRESENTATION) [Presented : Dec 06, 2018]
The ability to assess, report, map, and forecast the life support functions of ecosystems is absolutely critical to our capacity to make informed decisions that help maintain the sustainable nature of our environment now and into the future. Because of the variability among livin...