A5083526061- Fish Ecology and Management Studies
- Hydrology and Watershed Management Studies
- Soil and Water Nutrient Dynamics
- Flood Risk Assessment and Management
- Water Quality and Pollution Assessment
- Species Distribution and Climate Change
- Aquatic Ecosystems and Phytoplankton Dynamics
- Freshwater macroinvertebrate diversity and ecology
- Land Use and Ecosystem Services
- Ecology and Vegetation Dynamics Studies
- Hydrology and Drought Analysis
- Research Data Management Practices
- Climate variability and models
- Marine and fisheries research
- Crustacean biology and ecology
- Environmental DNA in Biodiversity Studies
- Innovation, Technology, and Society
- Atmospheric and Environmental Gas Dynamics
- Coastal wetland ecosystem dynamics
- Geographic Information Systems Studies
- Machine Learning and Algorithms
- scientometrics and bibliometrics research
- Hydrology and Sediment Transport Processes
- Marine and coastal ecosystems
- Face and Expression Recognition
Environmental Protection Agency
2017-2023
Oak Ridge Institute for Science and Education
2020-2023
Pacific Environment
2021
Oregon Department of Fish and Wildlife
2020
Oregon State University
2020
National Academies of Sciences, Engineering, and Medicine
2017-2019
Michigan State University
2011-2017
Michigan United
2016
Abstract Understanding the factors that affect water quality and ecological services provided by freshwater ecosystems is an urgent global environmental issue. Predicting how will respond to changes not only requires data, but also information about context of individual bodies across broad spatial extents. Because lake usually sampled in limited geographic regions, often for time periods, assessing controls compilation many data sets regions into integrated database. LAGOS-NE accomplishes...
Abstract Inland water bodies and their surface hydrologic connections are active components in the landscape, influencing multiple ecological processes that can propagate to broad‐scale phenomena such as regional nutrient carbon cycles metapopulation dynamics. However, while lake, wetland, stream abundance has been estimated at global extents, less attention paid freshwater connectivity attributes among aquatic systems macroscales. Thus, continental patterns of poorly understood. We measured...
Abstract Climate change can have strong effects on aquatic ecosystems, including disrupting nutrient cycling and mediating processes that affect primary production. Past studies been conducted mostly individual or small groups of making it challenging to predict how future climate will water quality at broad scales. We used a subcontinental‐scale database address three objectives: (1) identify which metrics best lake quality, (2) examine whether influences different productivity measures...
Lake water levels are integral to lake function, but hydrologic changes from land and management may alter fluctuations beyond natural ranges. We constructed a conceptual model of multifaceted drivers water-levels evaporation-to-inflow ratio (Evap:Inflow). Using structural equation modeling framework, we tested our on 1) national subset lakes in the conterminous United States with minimal describe hydrology 2) five ecoregional subsets explore regional variation effects. Our fit datasets...
Abstract Science is increasingly being conducted in large, interdisciplinary teams. As team size increases, challenges can arise during manuscript development, where achieving one goal (e.g., inclusivity) may be direct conflict with other goals efficiency). Here, we present strategies for effective collaborative development that draw from our experiences an science writing manuscripts six years. These are rooted guiding principles were important to team: create a transparent, inclusive, and...
We quantified relationships between local wetland cover in the riparian lake buffer and total phosphorus (TP) water color (color) using multilevel mixed‐effects models that also incorporate landscape features such as hydrogeomorphology land use at broad regional scales to determine following: (1) Within regions, are with TP affected by interactions or hydrogeomorphic variables? (2) Across different? And if so, (3) Are differences a result of cross‐scale interactions? answered these questions...
Abstract Establishing baseline hydrologic characteristics for lakes in the United States (U.S.) is critical to evaluate changes lake hydrology. We used U.S. Environmental Protection Agency National Lakes Assessment 2007 and 2012 surveys assess of a population ~45,000 conterminous based on probability samples ~1,000 lakes/yr distributed across nine ecoregions. Lake study variables include water‐level drawdown (i.e., vertical decline horizontal littoral exposure) two water stable...
Abstract Understanding the broad‐scale response of lake CO 2 dynamics to global change is challenging because relative importance different controls surface water not known across broad geographic extents. Using geostatistical analyses 1080 lakes in conterminous United States, we found that partial pressure ( p ) was controlled by chemical and biological factors related inputs losses along climate, topography, geomorphology, land use gradients. Despite weak spatial patterns study extent,...
Abstract Aim We aimed to measure the dominant spatial patterns in ecosystem properties (such as nutrients and measures of primary production) multi‐scaled geographical driver variables these quantify how structure pattern all influences strength relationships among them. Location time period studied > 8,500 lakes a 1.8 million km 2 area Northeast U.S.A. Data comprised 10‐year medians (2002–2011) for measured properties, long‐term climate averages recent land use/land cover variables....
Lake depth is an important characteristic for understanding many lake processes, yet it unknown the vast majority of lakes globally. Our objective was to develop a model that predicts using map-derived metrics and terrestrial geomorphic features. Building on previous models use local topography predict depth, we hypothesized regional differences in topography, shape, or sedimentation processes could lead region-specific relationships between mapped We therefore used mixed modeling approach...
Lakes face multiple anthropogenic pressures that can substantially alter their hydrology. Dams and land use in the watershed (e.g., irrigated agriculture) modify lake water regimes beyond natural ranges, changing climate may exacerbate stresses on However, we lack cost-effective indicators to quantify hydrologic alteration potential lakes at regional national extents. We developed a framework rank by for dams hydrology (HydrAP) be applied scale. The HydrAP principles are 1) primary drivers...
The nutrient-water color paradigm is a framework to characterize lake trophic status by relating primary productivity both nutrients and water color, the colored component of dissolved organic carbon. Total phosphorus (TP), limiting nutrient, strong light attenuator, influence chlorophyll concentrations (CHL). But, these relationships have been shown in previous studies be highly variable, which may related differences catchment geomorphology, forms carbon entering system, community...
Abstract Understanding broad‐scale ecological patterns and processes often involves accounting for regional‐scale heterogeneity. A common way to do so is include regions in sampling schemes empirical models. However, most existing were developed specific purposes, using a limited set of geospatial features irreproducible methods. Our study purpose was to: (1) describe method that takes advantage recent computational advances increased availability regional global data sets create...
Abstract Macroscale studies of ecological phenomena are increasingly common because stressors such as climate and land‐use change operate at large spatial temporal scales. Cross‐scale interactions ( CSI s), where processes operating one or scale interact with another scale, have been documented in a variety ecosystems contribute to complex system dynamics. However, investigating s often dependent on compiling multiple data sets from different sources create multithematic, multiscaled sets,...
Lake depth is an important characteristic for understanding many lake processes, yet it unknown the vast majority of lakes globally. Our objective was to develop a model that predicts using map-derived metrics and terrestrial geomorphic features. Building on previous models use local topography predict depth, we hypothesized regional differences in topography, shape, or sedimentation processes could lead region-specific relationships between mapped We therefore used mixed modeling approach...
Stream macroinvertebrate assemblages are shaped by natural and human-related factors that operate through complex hierarchical pathways. Quantifying these relationships can provide additional insights into stream ecological assessment. We applied a structural equation modeling framework to evaluate hypothesized pathways which watershed, riparian, in-stream affect benthic condition in the Western Mountains (WMT) Xeric (XER) ecoregions United States. developed conceptual model grounded theory,...
Invasive species are a widespread threat to stream ecosystems across the planet. In Southern California, USA, invasive red swamp crayfish Procambarus clarkii (Girard, 1852) poses significant native aquatic fauna. Studies have suggested that artificial refuge traps (ARTs) resembling burrows can be used remove crayfish, but, date, no studies focused on optimizing ART design and deployment maximize catch. This month-long study tested effect of modifications diameter, color, soak time P. catch...