A5073203545- Hydrology and Watershed Management Studies
- Hydrology and Sediment Transport Processes
- Fish Ecology and Management Studies
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Freshwater macroinvertebrate diversity and ecology
- Aquatic Invertebrate Ecology and Behavior
- American Environmental and Regional History
- Hydrological Forecasting Using AI
- Fire effects on ecosystems
- Microfinance and Financial Inclusion
- Disaster Management and Resilience
- Geology and Paleoclimatology Research
- Coastal wetland ecosystem dynamics
- Hydrology and Drought Analysis
- Geotechnical and construction materials studies
- Water Systems and Optimization
- Geological formations and processes
- Philosophy and History of Science
- Ecology and biodiversity studies
- Islamic Finance and Banking Studies
- Ecology and Vegetation Dynamics Studies
- Flood Risk Assessment and Management
- Plant Water Relations and Carbon Dynamics
- Ecosystem dynamics and resilience
The Nature Conservancy
2021-2024
Kansas State University
2013-2022
Michigan State University
2022
University of Washington
2022
University of British Columbia
2018-2020
University of Alaska Fairbanks
2015-2019
Abstract Forested riparian buffers are recommended to mitigate negative effects of forest harvesting on recipient freshwater ecosystems. Most the current best practices buffer retention aim at larger streams. Riparian protection along small streams is thought be lacking; however, it not well documented. We surveyed 286 flowing through recent clearcuts in three timber‐producing jurisdictions—British Columbia, Canada (BC), Finland, and Sweden. The jurisdictions differed implementation. In BC,...
Whole-ecosystem metabolism is an important indicator of the role organic matter, C cycling, and trophic structure in rivers. Ecosystem well studied small streams, but less known about large We estimated daily whole-ecosystem over 2 y for 1 site each at Mississippi Chattahoochee Rivers USA to understand factors influencing temporal patterns ecosystem metabolism. rates gross primary production (GPP), community respiration (CR), net (NEP) with a curve-fitting approach publicly available...
Secondary production, the growth of new heterotrophic biomass, is a key process in aquatic and terrestrial ecosystems that has been carefully measured many flowing water ecosystems. We combine structural equation modeling with first worldwide dataset on annual secondary production stream invertebrate communities to reveal core pathways linking air temperature precipitation production. In United States, where most extensive set estimates covariate data were available, we show...
Abstract Agricultural runoff from the Mississippi‐Atchafalaya River Basin delivers nitrogen (N) and phosphorus (P) to Gulf of Mexico, causing hypoxia, climate drives interannual variation in nutrient loads. Climate phenomena such as El Niño–Southern Oscillation may influence export through effects on river flow, uptake, or biogeochemical transformation, but landscape at smaller spatial scales can mask signals load discharge time series within large networks. We used multivariate...
Abstract River flows change on timescales ranging from minutes to millennia. These vibrations in flow are tuned by diverse factors globally, for example, dams suppressing multi‐day variability or vegetation attenuating flood peaks some ecosystems. The relative importance of the physical, biological, and human influencing is an active area research, as related question finding a common language describing overall regime. Here, we addressed both topics using daily river discharge data set over...
Abstract Streams and their accompanying riparian environments are intrinsic components of terrestrial carbon cycling. However, they have been understudied in terms the magnitude storage role disturbance determining capacity. This study presents partial budgets for stream‐riparian corridors along six reaches mountain headwater streams southeast Wyoming to evaluate impact tie‐driving, a historic legacy, on contemporary storage. Detailed measurements biomass were collected in‐stream including...
Abstract The extent of fish movements in contemporary river networks can depend on spatial position relative to attractive features that may provide food and refuge, such as tributary mouths, or restrictive features, barriers. From the San Juan River basin New Mexico Utah, we integrated remote summertime PIT tag detections at two mouths (McElmo Creek Chaco Wash) with main‐stem recapture data from 2012 2015 determine if endangered species, Colorado Pikeminnow Ptychocheilus lucius Razorback...
ABSTRACT Intermittent streams are characterized by significant periods of low to no flow, yet also frequently subjected flashy, high floods. Floods alter ecosystem function and result in variable successional patterns across the stream network. Yet, timing restored after floods intermittent networks is relatively unexplored. We measured recovery using rates gross primary production (GPP), respiration (ER), net (NEP), ratio (P/R) eight locations Kings Creek drainage basin with differing...
Abstract Run‐of‐the‐river dams (RORDs) comprise the vast majority of on river systems and are commonly removed as a part stream restoration strategies. Although these routinely removed, few studies have documented geomorphological responses sand‐bed rivers to removal RORDs. We examined response large located in South‐Central Kansas, USA, installation dam that is installed annually for seasonal recreational purposes. Channel adjustments were tracked using cross‐sections sampled over course 7...
Prior to European colonization and the introduction of cattle, bison were prominent grazing ungulates throughout North American grasslands. Yet, relative zoogeomorphic impacts between cattle on grassland streams remain largely unknown. Utilizing a paired watershed study design, we compared baseflow suspended sediment concentrations across ten watersheds four treatments (ungrazed, bison-grazed, moderately stocked cattle-grazed, intensively cattle-grazed) in Flint Hills subregion Great Plains....
The density of forested cover in grassland regions has been increasing globally during the past several decades. Although there is some evidence to suggest that climate change playing a role this woody encroachment, lack consensus on both causes and consequences land change. To examine tree establishment growth at very large spatial scale, we used dendrochronological techniques coupled with analyses effects drivers biotic responses such as growth. We sampled ring widths selected trees...
Abstract Estimating juvenile salmon habitat carrying capacities is a critical need for restoration planning. We assimilated more than 4500 unique estimates of published densities (e.g., fish/m 2 ) in estuarine and floodplain habitats. These density data were categorized by species life stage, type, seasonal period, geographic region to develop frequency statistics 25th 75th percentiles, or quartiles). then used expansion approach estimate based on extent. demonstrate the applying quantiles...
River flow changes on timescales ranging from minutes to millennia. These variations influence fundamental functions of ecosystems, including biogeochemical fluxes, aquatic habitat, and human society. Efforts describe temporal variation in river flow—i.e. regime—have resulted hundreds unique descriptors, complicating interpretation identification global drivers overall regime. In this study, we used three analytical approaches investigate related questions: 1. how interrelated are regime...