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Full-Text Articles in Life Sciences
Effects Of Beaver Dam Analogs On Stream Ecosystem Function Of Crab Creek, Washington State, Nicholas D. Broderius
Effects Of Beaver Dam Analogs On Stream Ecosystem Function Of Crab Creek, Washington State, Nicholas D. Broderius
EWU Masters Thesis Collection
This study documents the effects of beaver dam analogs (BDAs) on nutrient transport, fish community composition, macroinvertebrate drift, and benthic macroinvertebrate communities of Crab Creek, WA, USA. In 2019, the U.S. Fish and Wildlife Service (USFWS), and Natural Resource Conservation Service (NRCS) placed 25 BDAs in Crab Creek on a section of private land near Harrington, WA. Beaver dam analogs are structures placed in streams to mimic the ecosystem effects of beaver activity and are increasingly used as a stream restoration technique. The primary goals of placing these BDAs in the stream was to impound sediment and create a new …
Beaver Moderated Fire Resistance In The North Cascades And Potential For Climate Change Adaptation, Joseph John Weirich Iii
Beaver Moderated Fire Resistance In The North Cascades And Potential For Climate Change Adaptation, Joseph John Weirich Iii
EWU Masters Thesis Collection
Climate change and fire suppression have altered historic fire regimes, creating conditions for larger, more intense fires. Intense burns can alter watershed hydrology, increasing the potential for harmful channel incision, which impairs riparian ecosystem function by lowering the water table, disconnecting floodplains from aquatic environments. However, wetlands and functioning 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 was to test the hypothesis that beaver impoundments increase landscape …
Life History And Microbiome Analysis Of Freshwater Fingernail Clams (Sphaeriidae) Exposed To Trace Metal Pollution, Dechen D. Edwards
Life History And Microbiome Analysis Of Freshwater Fingernail Clams (Sphaeriidae) Exposed To Trace Metal Pollution, Dechen D. Edwards
EWU Masters Thesis Collection
Aquatic habitats impacted by anthropogenic activities such as mining can contain metal mixtures of nonessential and essential trace metals. The consequences of chronic exposure to metal mixtures on the life history of benthic organisms are unclear, as are the potential effects on host-associated microbial communities. I use an energy-budget based methodology to ask whether exposure to metal mixtures influences the life histories of freshwater fingernail clams (Sphaeriidae) and if fingernail clams are selecting a different microbial community if chronically exposed to metal mixtures than if in a site that is not impacted by metal pollution. Fingernail clams are small, cosmopolitan, …