Science Inventory

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Quantifying and projecting the downstream benefits of water stored in lakes and wetlands (SWstorage) requires watershed hydrologic models, which often parameterize surface water storage in topographic depressions using static digital elevation model (DEM) data. Calibration and va...

Excess riverine phosphorus represents a preeminent catalyst for water quality degradation. Spatial mapping and characterization of the net gain and loss of riverine phosphorus help discern the critical source areas. Here, we developed a dataset encompassing phosphate (PO) and tot...

In large-extent assessment programs, such as the United States Environmental Protection Agency's (USEPA) National Wetland Condition Assessment (NWCA), the task of identifying diatom taxa in samples is spread out over several taxonomists and laboratories. This produces inconsisten...

Great Lakes coastal wetlands, often located in urban areas, provide a multitude of ecosystem services that contribute to human well-being. Many of these wetland systems are undergoing restoration efforts to enhance ecological functions and provide additional benefits. A critical ...

Globally, many wetlands and lakes are at risk for further loss, which can amplify downstream consequences of flood and drought events. We derived remotely sensed based time series of surface water storage (SWstorage) to determine when and where accounting for SWstorage dynam...

This study presents a novel cell-averaged numerical scheme for simulating one-dimensional unconfined Darcy’s and post-Darcy’s flow in highly conductive porous wetland bed. The model comprises a leaky porous layer that encompasses the roots of emerging vegetation in th...

Prior to mass deforestation of uplands and drainage efforts in lowlands, floodplain wetlands were abundant in river valleys. Deforestation of steep slopes and the associated accumulation of alluvial sediment in valley bottoms have left floodplains much drier and largely disconnec...

In ecology and related sciences, missing data are common and occur in a variety of different contexts. When missing data are not handled properly, subsequent statistical estimates tend to be biased, inefficient, and lack proper confidence interval coverage. Missing data are often...

Existing coastal wetland mitigation banks are increasingly vulnerable to climate change impacts such as sea-level rise (SLR) and saltwater intrusion, threatening restoration success, credit release, and long-term management. Consideration of existing and future vulnerabilities to...

Wetland restoration can be an effective tool in nutrient reduction strategies. However, to be effective as a strategy, restored wetlands must be geographically positioned where (1) soil and hydrologic conditions promote wetland persistence post-restoration and (2) interception of...

Discharge of improperly treated wastewater, and surface runoff can considerably impair quality of receiving waterways due to presence of microbial and other contaminants, including antibiotic resistant bacteria (ARB) and their genes (ARGs). Constructed treatment wetlands (CTWs) a...

Wetlands are effective in reducing nutrient loads in surface waters, but there is a need to optimize allocation of conservation efforts to efficiently maximize the likelihood of water quality improvements. This presentation describes efforts to quantify nutrients flowing through ...

Various stressors threaten amphibian species, affecting global populations and altering habitat suitability. Warmer, drier conditions reduce breeding pond availability in the southeastern United States, particularly for anurans dependent on seasonally inundated wetlands for devel...

During a combined sewer overflow (CSO) event, the capacity of a sewer system is exceeded, and untreated sewage, wastewater, and stormwater are released into nearby water bodies. CSOs occur in urban areas due to heavy precipitation, which is expected to occur more frequently and a...

Excess riverine nitrate causes downstream eutrophication, notably in the Gulf of Mexico where hypoxia is linked to nutrient-rich discharge from the Mississippi River Basin (MRB). We developed a long short-term memory (LSTM) model using high-frequency sensor data from across the c...

This study was developed to identify the optimal (most cost-effective) strategies to reduce sediment and phosphorus loadings in the Upper Soldier Creek, Kansas, USA, watershed using the Watershed Management Optimization Support Tool (WMOST) suite of programs. Under average precip...

Wetland restoration has potential to remediate excess nitrogen (N) in groundwater and contribute to load reduction targets for impaired waters. Wetlands occupy interfaces between ground- and surface waters and are well known for their capacity for denitrification, a microbially m...

The Caño Martín Peña (CMP), located in the highly developed city of San Juan, Puerto Rico, is an important canal that connects interior lagoons with an open bay in the San Juan Bay Estuary (SJBE). Since the 1950s, the rapid rate of urbanization has caused the...

These datasets provide raw stable isotope data collected as part of the National Wetland Condition Assessment (NWCA).  δ15N and δ13C measured from 10-cm Standard Depth Soil Cores are reported for 2011, 2016, 2021 NWCA and δ2H and δ18O from s...

The retention of surface water in wetlands and lakes can modify the timing, duration, and magnitude of river discharge. However, efforts to characterize the influence of surface water on discharge regimes have been generally limited to small, wetland-dense watersheds. We develope...

Wetlands provide numerous ecosystem functions within their connected landscapes that improve water quality, including nutrient removal. Due to growing recognition of the role of wetlands in maintaining downstream water quality, there is an increasing emphasis on identifying exist...

Wetlands provide many ecosystem services, such as mitigating pollution, attenuating flooding and drought extremes, and providing habitat for many species. However, studies quantifying potential wetland sequestration of heavy metals as an ecosystem service, particularly across lar...

Three in-situ lead (Pb) soil amendment treatment methods were tested over 26 months in a naturally acidic contaminated wetland with the intent of sequestering high levels of Pb contamination as stable mineral forms. Two of the treatments used Apatite II, a phosphate-based amendme...

Surface water concentrations of per- and polyfluoroalkyl substances (PFAS) and potential for resulting biological effects were estimated in a study using polar organic chemical integrative samplers (POCIS) from 60 tributary sites within 20 watersheds in the Great Lakes Basin in 2...

Monitoring and assessment is essential (1) to evaluate progress in meeting goals put into place to protect aquatic resources and (2) to respond and detect changes in the environment due to anthropogenic pressures, climate change, and other unforeseen stressors.  In this semi...