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Article
Mycorrhizal colonization across hydrologic gradients in restored and reference freshwater wetlands
Arbuscular mycorrhizae, which are plant root-fungal symbioses, are common associates of vascular plants. Such relationships, however, are thought to be rare in wetland plant roots, although several recent stud...
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Article
Landscape predictors of stream dissolved organic matter concentration and physicochemistry in a Lake Superior river watershed
We examined landscape predictors of dissolved organic matter (DOM) concentration, molecular weight (Mw), and molar absorptivity at 280 nm (ɛ280) in 60 streams from the Ontonagon River watershed in northern Michig...
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Article
Scale-dependent influences on water quality, habitat, and fish communities in streams of the Kalamazoo River Basin, Michigan (USA)
In 2002, we investigated regional versus local influences of 22 streams in the Kalamazoo River basin, MI (USA) to: 1) determine how stream water quality, habitat, and fish communities were influenced by enviro...
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Article
Ecological Responses to Trout Habitat Rehabilitation in a Northern Michigan Stream
Monitoring of stream restoration projects is often limited and success often focuses on a single taxon (e.g., salmonids), even though other aspects of stream structure and function may also respond to restorat...
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Article
Effects of spawning salmon on dissolved nutrients and epilithon in coupled stream-estuary systems of southeastern Alaska
Spawning migrations of Pacific salmon (Oncorhynchus spp.) represent a significant nutrient pulse to freshwater ecosystems of southeastern Alaska. These salmon-derived nutrients (SDN) can be transported by streamf...
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Article
Ecological Effects of Live Salmon Exceed Those of Carcasses During an Annual Spawning Migration
We tested the hypothesis that the carcasses of anadromous Pacific salmon (Oncorhynchus spp.) constitute a significant source of nutrients in the nutrient-poor freshwaters where these fish migrate, spawn, senesce,...
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Article
Whole-Stream Metabolism Responds to Spawning Pacific Salmon in Their Native and Introduced Ranges
Pacific salmon (Oncorhynchus spp.) perform important ecological roles in stream ecosystems by provisioning nutrients as resource subsidies and modifying their physical habitat as ecosystem engineers. These contra...
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Article
Habitat influences Pacific salmon (Oncorhynchus spp.) tissue decomposition in riparian and stream ecosystems
Decomposition incorporates organic material delivered by Pacific salmon (Oncorhynchus spp.) into aquatic and terrestrial ecosystems of streams where salmon spawn. We hypothesized that salmon tissue decomposition ...
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Article
Body burdens of heavy metals in Lake Michigan wetland turtles
Tissue heavy metal concentrations in painted (Chrysemys picta) and snap** (Chelydra serpentina) turtles from Lake Michigan coastal wetlands were analyzed to determine (1) whether turtles accumulated heavy metal...
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Article
Open AccessStandardized Measures of Coastal Wetland Condition: Implementation at a Laurentian Great Lakes Basin-Wide Scale
Since European settlement, over 50 % of coastal wetlands have been lost in the Laurentian Great Lakes basin, causing growing concern and increased monitoring by government agencies. For over a decade, monitori...
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Article
Open AccessAn expanded fish-based index of biotic integrity for Great Lakes coastal wetlands
Biotic indicators are useful for assessing ecosystem health because the structure of resident communities generally reflects abiotic conditions integrated over time. We used fish data collected over 5 years fo...
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Article
Methane Cycling Contributes to Distinct Patterns in Carbon Stable Isotopes of Wetland Detritus
Increasing global temperatures are changing the balance between carbon sequestration and its microbial processing in wetlands, making the tracking of these processes important. We used detrital carbon stable i...
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Article
Open AccessLeveraging a Landscape-Level Monitoring and Assessment Program for Develo** Resilient Shorelines throughout the Laurentian Great Lakes
Traditionally, ecosystem monitoring, conservation, and restoration have been conducted in a piecemeal manner at the local scale without regional landscape context. However, scientifically driven conservation a...
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Article
Beyond nitrogen and phosphorus subsidies: Pacific salmon (Oncorhynchus spp.) as potential vectors of micronutrients
Large quantities of material are moved annually from the ocean to freshwater systems by migrating Pacific salmon. Previous studies have focused on nitrogen and phosphorus provided by spawning salmon but largel...
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Article
Bioaccumulation of mercury in Lake Michigan painted turtles (Chrysemys picta)
Mercury (Hg) contamination of aquatic environments can lead to bioaccumulation in organisms, but most previous work has focused on fish and not on semi-aquatic reptiles such as turtles that traverse both terre...