A5051860991- Peatlands and Wetlands Ecology
- Ecology and biodiversity studies
- Botany and Plant Ecology Studies
- Hydrology and Watershed Management Studies
- Climate change and permafrost
- Soil and Water Nutrient Dynamics
- Integrated Water Resources Management
- Cryospheric studies and observations
- Soil erosion and sediment transport
- Coastal wetland ecosystem dynamics
- Hydrology and Sediment Transport Processes
- Flood Risk Assessment and Management
- Fish Ecology and Management Studies
- Soil Carbon and Nitrogen Dynamics
- Plant Water Relations and Carbon Dynamics
- Geology and Paleoclimatology Research
- Disaster Management and Resilience
- Environmental and Social Impact Assessments
- Land Use and Ecosystem Services
- Remote Sensing and LiDAR Applications
- Soil and Unsaturated Flow
- Groundwater and Isotope Geochemistry
- Environmental Conservation and Management
- Tropical and Extratropical Cyclones Research
- Water Quality and Pollution Assessment
University of Saskatchewan
2016-2025
Global Institute for Water Security
2015-2024
University of Waterloo
2022
Heritage Valley Beaver
2022
Florida Medical Entomology Laboratory
2007
University of Florida
2007
Colorado State University
2004-2006
Abstract To illustrate the hydrological impact of climate and land use change on an unregulated basin, agriculture‐ wetland‐dominated Smith Creek Research Basin (SCRB) was examined in detail. Streamflows (1975–1994) show behaviour typical Canadian Prairies – generation primarily by snowmelt cessation May due to lack runoff or groundwater contributions. Depressional storage has been drained for decades, reducing extent ponds 58% increasing drainage channel length 780%. Climate also changed;...
Overbank flooding is recognized by hydrologists as a key process that drives hydrogeomorphic and ecological dynamics in mountain valleys. Beaver create dams some ecologists have assumed may also drive riparian hydrologic processes, but empirical evidence lacking. We examined the influence of two in‐channel beaver 10 year flood event on surface inundation, groundwater levels, flow patterns broad alluvial valley during summers 2002–2005. studied 1.5 km reach fourth‐order Colorado River Rocky...
Abstract. The Cold Regions Hydrological Modelling platform (CRHM) was used to create a prairie hydrological model for Smith Creek Research Basin (~400 km2), east-central Saskatchewan, Canada. Physically based modules were sequentially linked in CRHM simulate snow processes, frozen soils, variable contributing area and wetland storage runoff generation. Five "representative basins" (RBs) defined each divided into seven response units (HRUs): fallow, stubble, grassland, river channel, open...
Abstract We examined how beaver dams affect key ecosystem processes, including pattern and process of sediment deposition, the composition spatial vegetation, nutrient loading processing. provide new evidence for formation heterogeneous meadows on riverine system floodplains terraces where dynamic flows are capable breaching in‐channel dams. Our data show a 1.7‐m high dam triggered overbank flooding that drowned vegetation in areas deeply flooded, deposited nutrient‐rich spatially floodplain...
Abstract River management based solely on physical science has proven to be unsustainable and unsuccessful, evidenced by the fact that problems this approach intended solve (e.g., flood hazards, water scarcity, channel instability) have not been solved long‐term deterioration in river environments reduced capacity of rivers continue meeting needs society. In response, there a paradigm shift over past few decades, towards restoration. But ecological, morphological, societal benefits...
Abstract Marmot Creek Research Basin in the Canadian Rockies has been site of intensive streamflow, groundwater, snow accumulation, precipitation, and air temperature observations at multiple elevations. The basin was instrumented 1962, subjected to forestry experiments mid‐1970s, experienced extreme flooding 2013. Climate change, forest cover recent weather make an ideal laboratory for studying hydrological resilience. Observations show increases low elevation temperature, day spring...
The Boreal Plains Ecozone ( BPE ) in Western Canada is expected to be an area of maximum ecological sensitivity the 21st century. Successful climate adaptation and sustainable forest management require a better understanding interactions between hydrology, climate, vegetation. This paper provides perspective on changing water cycle from interdisciplinary team researchers, seeking identify critical knowledge gaps. Our review suggests will likely become drier undergo more frequent disturbance...
Channel structure, riparian zone and sediment transport capacity were investigated for Sandown Creek, a stream in the East Kootenay region of British Columbia where beaver dams removed late 1980s to “improve” fish passage flood conveyance. A series historical aerial photographs taken over 36-year period between 1968 2004 recorded physical changes 3-km section valley following removal 18 dams. In 16 years dam removal, channel pattern changed from multi-thread single-thread form. The area...
Abstract It is becoming increasingly popular to reintroduce beaver streams with the hopes of restoring riparian ecosystem function or reducing some hydrological impacts climate change. One risks relying on enhance water storage that their dams are reportedly more apt fail during floods which can exacerbate flood severity. Missing observations dam persistence and capacity floods, information needed evaluate risk as a nature‐based solution. A June rainstorm in 2013 triggered largest recorded...
Abstract Novel approaches addressing aquatic cumulative effects over broad temporal and spatial scales are required to track changes assist with sustainable watershed management. Cumulative assessment (CEA) requires the of due multiple stressors both spatially temporally. The province Alberta, Canada, is currently experiencing significant economic growth as well increasing awareness water dependencies. There has been an level industrial, urban, other land‐use related development (pulp paper...
Investigation into the effects of beaver dams on hyporheic fluxes in channelled peatlands is needed to better understand how biological processes drive stream-riparian area connections and thus nutrient export, improve our overall conceptual model water storage flow through peatlands. The objective this study was determine influence vertical lateral exchange. Hydrometric methods were used subsurface pathways estimate for a third-order stream draining Canadian Rocky Mountain peatland 2006...
Abstract. Beaver ponds are surface-water features that transient through space and time. Such qualities complicate the inclusion of beaver in local regional water balances, hydrological models, as reliable estimates storage difficult to acquire without time- labour-intensive topographic surveys. A simpler approach overcome this challenge is needed, given abundance North America, Eurasia, southern South America. We investigated whether simple morphometric characteristics derived from readily...
Net mineralization and nitrification in surface forest soils were measured upland stands valley peatlands using situ soil incubations at two headwater catchments of Harp Lake, Ontario from July 1995 to October 1996. No difference either net N or was observed between the adjacent despite differences catchment export. Annual rates 10 cm higher deciduous (11.5 ± 3.1 g/m 2 ; mean SE) conifer-mixed (conifer-hardwoods) (13.9 2.3 ) than peatland (1.6 0.6 ). Mean annual (6.6 0.7 g N/m mixed (1.9...
Abstract Beaver dams are known to raise water tables in mineral soil environments, but very little is about their impact wetlands, such as peatlands. Peatlands tend have shallow tables, and the position tendency of table fluctuate (i.e., stability) a factor controlling system's ability store carbon water. Many peatland especially fens, offer ideal habitat for beaver, potential beaver influence this link by manipulating requires investigation. Our objective was determine on dynamics Rocky...