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Showing 1 to 13 of 13 for “"beaver dams"”.
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ECOHYDROLOGICAL MODELING OF BEAVER DAMS
Beavers (Castor canadensis and C. fiber) are expanding in their native range in North America and Eurasia and are expanding their range into urban environments and the Arctic tundra. Outside their natural range, they are also in Southern Patagonia because of historic releases in the fur industry. …
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Dam dimensions and surface porosity affect the water storage capacity of Beaver dam analogs compared to natural Beaver dams
… strategies. My study compares water retention by Beaver Dam Analogs (BDAs) to natural beaver dams and undammed control reaches. I compared how dam dimensions affect the hydraulic performance of both BDAs and beaver dams, revealing gaps in research on their comparative effectiveness. My study was …
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Beaver Dams, Spider Webs, and the Sticky Wicket: An Investigation On What Counts as Technology and What Counts as Knowledge
… is not matched by many human-made technologies. Beaver dams, beehives, and ant hills are great creations made by non-human animals. Davis Baird has argued that our scientific instruments bear knowledge in important ways, and the idea of technological knowledge bears interestingly on discussions …
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A damming history: an analysis on the legacy effects of beaver dams on the composition and structure of a montane riparian ecosystem
… As an "ecosystem engineer," the American beaver (Castor canadensis) increases heterogeneity in riparian systems through dam-building activities, resulting in diverse wetland complexes. This study explored the impact that historic, off-channel beaver dams have on the structure and …
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Hyporheic flow in a mountainous riverine system
Investigation into the effects of beaver dams on hyporheic exchange in peat dominated mountainous streams is needed to better understand stream-floodplain connections and improve our overall conceptual model of water storage and flow through riverine valleys. The objective of this study was to …
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Beaver as drivers of hydrogeomorphic and ecological processes in a mountain valley
… and semi-aquatic environments of North America, beaver (Castor canadensis) affect landscape structure and dynamics at a level rivaled only by humans. The objective of this dissertation is to identify the influence of beaver dams on hydrologic, geomorphic, and ecological processes in a mountain …
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Baseline data for assessing beaver dam analogs as a restoration tool in fire-affected tributaries of the Methow and Okanogan watersheds
… and aquatic habitats, and reduced biodiversity. Beaver dams improve incised streams by raising surface and groundwater levels, leading to reconnected floodplains. When beaver establishment is not feasible, Beaver Dam Analogs (BDAs) may be used to mitigate damage from stream incision and …
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Stream channel adjustments and persistence of change in response to beaver damming on a fluvial fan, Odell Creek, Montana
Beaver damming in streams is thought to increase bed elevation through in-channel sediment storage, thus beaver reintroductions are used as a river restoration tool to repair incised stream channels. However, effects of beaver damming are dependent on specific stream hydrologic and geomorphic …
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Effects of Barriers on Migratory Bull Trout and Application of a Conceptual Framework to Evaluate Tradeoffs Associated with Dam Removal in the Clearwater River Drainage, Montana
<p>Dams are well known for their negative ecological impacts on fish populations. Despite these negative impacts, dams are ubiquitous, many dams are aging, and decisions to remove dams are becoming progressively more common. Barriers can be detrimental by inhibiting movement among key habitats, but …
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Effects of Barriers on Migratory Bull Trout and Application of a Conceptual Framework to Evaluate Tradeoffs Associated with Dam Removal in the Clearwater River Drainage, Montana
<p>Dams are well known for their negative ecological impacts on fish populations. Despite these negative impacts, dams are ubiquitous, many dams are aging, and decisions to remove dams are becoming progressively more common. Barriers can be detrimental by inhibiting movement among key habitats, but …
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Riparian resilience in the face of interacting disturbances: understanding complex interactions between wildfire, erosion, and beaver (Castor canadensis) in grazed dryland riparian systems of low order streams in North Central Washington State, USA
… species, Castor canadensis (North American beaver). However, increasing frequency of large-scale wildfires and climate change driven weather is altering the severity and scale of riparian disturbance, often shifting highly impacted streams to a stable degraded state, unable to store water or …
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Beaver moderated fire resistance in the North Cascades and potential for climate change adaptation
… riparian zones can reduce burn intensity. Beaver, with their unique ability to build dams, can restore incised and degraded streams, store water, and expand wetland environments, potentially decreasing wildfire intensity, fire spread and create fire breaks across the landscape. My objective …
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Using Emerging Methods to Investigate Stream and Groundwater Interaction at Multiple Spatial Scales
… sensors within the streambed above two beaver dams in Lander, Wyoming, USA for five weeks as stream discharge dropped by 45%. The resulting rich datasets revealed flux was organized by streambed morphology with strong, deep flux at glides and near-dam bars, and weak, shallow flux at …