A5005452317- Hydrology and Watershed Management Studies
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Soil and Water Nutrient Dynamics
- Species Distribution and Climate Change
- Rangeland and Wildlife Management
- Hydrology and Sediment Transport Processes
- Climate variability and models
- Climate Change Communication and Perception
- Landslides and related hazards
- Peatlands and Wetlands Ecology
- Water-Energy-Food Nexus Studies
- Fire effects on ecosystems
- Soil Moisture and Remote Sensing
- Interdisciplinary Research and Collaboration
- Innovative Approaches in Technology and Social Development
- Groundwater and Isotope Geochemistry
- Plant and fungal interactions
- Climate change impacts on agriculture
- Coastal wetland ecosystem dynamics
- Hydrological Forecasting Using AI
- Fecal contamination and water quality
- Geology and Paleoclimatology Research
- Plant Taxonomy and Phylogenetics
Marist College
2018-2023
University of California, Santa Barbara
2017-2018
University of California, Merced
2018
University of Idaho
2011-2017
Boise State University
2016
Desert Research Institute
2016
University of Nevada, Reno
2016
Centro Agronomico Tropical de Investigacion y Ensenanza Catie
2016
New Mexico State University
2016
Abstract This study investigates the extent of rain‐snow transition zone across complex terrain western United States for both late 20th century climate and projected changes in by mid‐21st century. Observed temperature precipitation data at 4 km resolution were used with an empirical probabilistic phase model to estimate map likelihood snow versus rain occurrence. approach identifies areas most likely undergo change over next half At broad scales, these projections indicate average 30%...
Abstract. The phase of precipitation when it reaches the ground is a first-order driver hydrologic processes in watershed. presence snow, rain, or mixed-phase affects initial and boundary conditions that drive hydrological models. Despite their foundational importance to terrestrial hydrology, typical partitioning methods (PPMs) specify based on near-surface air temperature only. Our review conveys diversity tools available for PPMs modeling advancements needed improve predictions complex...
Enhanced understanding of subsurface water storage will improve prediction future impacts climate change, including drought, forest mortality, wildland fire, and strained security. Previous research has examined the importance plant‐accessible in soil, but upland landscapes within Mediterranean climates, soil often accounts for only a fraction storage. We draw insights from previous case study Southern Sierra Critical Zone Observatory to define attributes storage; review observed patterns...
Ecosystem-service production is strongly influenced by the landscape configuration of natural and human systems. Ecosystem services are not only produced consumed locally but can be transferred within among ecosystems. The time distance between producer consumer ecosystem considered lags in ecosystem-service provisioning. Incorporation heterogeneity lag effects into conservation incentives helps identify appropriate governance systems incentive mechanisms for effective management. These...
Kemp, K. B., J. Blades, P. Z. Klos, T. E. Hall, Force, Morgan, and W. Tinkham. 2015. Managing for climate change on federal lands of the western United States: perceived usefulness science, effectiveness adaptation strategies, barriers to implementation. Ecology Society 20(2): 17. https://doi.org/10.5751/ES-07522-200217
Interdisciplinarity is crucial for addressing the complex problems society faces. We present a model educating doctoral students careers involving interdisciplinary, team-based research to address problem-focused questions. The educational theoretically based and evaluated in light of literature, faculty perspectives, an assessment by successes challenges they experienced. involves (a) identification integrated questions combining team members’ disciplines, (b) course work review theoretical...
<p>Polygonum cuspidatum (Japanese knotweed) is an herbaceous, clonal invasive plant that can create a monodominant stand outcompetes native species, particularly throughout riparian zones. To better understand how this species so successful at invading, and why particular locations in settings are more risk, we investigated variably invaded valley site the northeastern United States. We measured spatial variations hydrologic soil attributes (soil texture, depth profiles, volumetric...
<p>Microplastics are a major form of anthropogenic pollution, and over time, the sediment at bottom aquatic environments becomes sink for denser these particles. By mapping analyzing from lake estuary systems, this study aimed to find spatial relationships between water dynamics stream-to-slack-water transitions resulting microplastic accumulation characteristics. Sediment was collected along transects extending stream mouth open depositional four unique sites. After series separations...
Beaver populations in the U.S. northeast are rising, increasing number of beaver dams and ponds suburban watersheds. These new may impact way that harmful algal blooms occur by changing biogeochemical cycling sediment characteristics. In this study, piezometers, installed upstream downstream multiple dam structures were used to evaluate changes nitrate orthophosphate concentrations surface hyporheic water. Data also collected with seepage meters, discharge measurements, lab field-based...
Abstract Seepage meters modified for use in flowing water were used to directly measure rates of exchange between surface and subsurface a gravel‐ cobble bed river western Pennsylvania, USA (Allegheny River, Q mean = 190 m 3 /s) sand‐ gravel‐bed Colorado, (South Platte 9·7 /s). Study reaches at the Allegheny River located downstream from dam. The was stable with moss, algae, grass present many locations. Median seepage + 0·28 m/d highly variable among measurement Upward downward greatly...
Abstract. The phase of precipitation as snow or rain controls numerous hydrologic processes that are fundamental to effective hydrological modeling. Despite its foundational importance terrestrial hydrology, typical prediction methods (PPM) use overly simplistic estimates based on near-surface air temperature. review conveys the diversity tools available for PPM in modeling and advancements needed improve predictions complex terrain characterized by large spatiotemporal variations phase....
Abstract Climate change is well documented at the global scale, but local and regional changes are not as understood. Finer, local- to regional-scale information needed for creating specific, place-based planning adaption efforts. Here development of an indicator-focused climate assessment in Idaho described. This interdisciplinary framework couples end users’ data needs with observed, biophysical scales. An online statewide survey natural resource professionals was conducted assess...
Abstract Both endangered and non‐endangered unionid mussels are heterogeneously distributed within the Allegheny River, Pennsylvania. Mussel populations vary from high to low density downstream of Kinzua Dam, direction, amount, range hyporheic exchange (seepage) at sediment–water interface were suspected influence their distribution abundance. Nineteen hydrogeomorphic variables, including quantification seepage metrics, substrate size, river stage, discharge, shear stress, measured five...
Abstract Observations from a granitic watershed within Mediterranean climate reveal the hydrologic and critical zone functioning of perennial stream headwater its upslope contributing area meadow system in Sierra Nevada, California. Chemical analysis (diagnostic tools mixing models, end member analysis, tritium, etc.) physical data (stream stage, piezometers, soil water, snowpack, indicate there are two primary pathways water input into sourced mountain meadow. One is shallower younger...