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Tree swallow (Tachycineta bicolor) eggs and nestlings were collected from 16 sites across the Great Lakes to quantify normal annual variation in total polychlorinated biphenyl (PCBs) exposure and to validate the sample size choice in earlier work. A sample size of 5 eggs or 5 nestlings per site was adequate to quantify exposure to PCBs in tree swallows given the current exposure levels and variation. There was no difference in PCB exposure in 2 randomly selected sets of 5 eggs collected in the same year, but analyzed in different years. Additionally, there was only modest annual variation in exposure, with between 69% (nestlings) and 73% (eggs) of sites having no differences between years. There was a tendency,...
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This geodatabase contains the official partnership boundaries of the National Fish Habitat Partnership (NFHP). Several boundaries were originally developed by the United States Fish and Wildlife Service and were updated in 2013 to reflect revisions from the recognized Fish Habitat Partnerships (FHPs) of the National Fish Habitat Partnership. For the remaining FHPs, the boundaries were developed in 2013 to reflect the boundary as defined by the respective partnerships. The geodatabase contains two feature datasets. The 'Boundaries' feature dataset includes official partnership boundaries. The 'Subregions_States' feature dataset includes partnership boundaries along with state and/or subregion boundaries.
Tree swallow, Tachycineta bicolor, nestlings were collected from 76 sites in the Great Lakes which included multiple sites at 27 Areas of Concern (AOCs) and 12 sites not listed as AOCs from 2010 to 2015. Livers were harvested and analyzed for 21 elements. Mercury concentrations differed among AOCs; however, all livers analyzed had concentrations well within background and generally comparable or lower than most sites outside of the Great Lakes. Mercury, the only element specifically identified in the designation of AOCs, does not seem to pose a threat to birds at any of the AOCs monitored. In contrast, selenium (Se) concentrations were elevated at sites on the southwest shore of Lake Michigan to levels that could...
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Tree swallows, Tachycineta bicolor, were sampled across the Great Lakes basin in 2010-2015 to provide a system-wide assessment of current exposure to organic contaminants. These results provide information identified as critical by land managers and regulators to assess the ‘Bird or Animal Deformity or Reproductive Problems’ Beneficial Use Impairment. Eggs were collected from 69 sites across all five Great Lakes, including 27 Areas of Concern (AOCs), some with multiple sites, and ten sites not listed as an AOC. Concentrations of organic contaminants in eggs were quantified and compared to background and reproductive effect thresholds. Approximately one-third of the AOCs had geometric mean concentrations of total...
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This dataset is a compilation of Flathead Catfish occurrence data from museums, literature, and state agencies. Sources include museums that are members of the Global Biodiversity Information Facility, VertNet, FishNet2, state fish books, state reports, state stocking data for states surrounding the Great Lakes, and historical literature.
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Tree swallow, Tachycineta bicolor, nestlings were collected from 60 sites in the Great Lakes which included multiple sites at 27 Areas of Concern (AOCs) and 6 sites not listed as AOCs from 2010 to 2014. Nestlings were measured for ethoxyresorufin-O-dealkylase (EROD) activity, chromosomal damage (DNA CV), and six measures of oxidative stress. Each of these bioindicators was divided into four groups from the highest to lowest values and the groups were compared to contaminant concentrations using multivariate analysis. Nestling contaminant concentrations included polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), perfluorinated compounds (PFCs), and 17 elements. Alkylated polycyclic aromatic...
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The first basin-wide map of large stands of invasive Phragmites australis (common reed) in the coastal zone was created through a collaboration between the U.S. Geological Survey and Michigan Tech Research Institute (Bourgeau-Chavez et al 2013). This data set represents a revised version of that map and was created using multi-temporal PALSAR data and Landsat images from 2016-2017. In addition to Phragmites distribution, the data sets shows several land cover types including urban, agriculture, forest, shrub, emergent wetland, forested wetland, and some based on the dominant plant species (e.g., Schoenoplectus, Typha). The classified map was validated using over 400 field visits.
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Winter conditions have changed substantially in the Great Lakes region over the last 50 years, with the region experiencing rising temperatures, declining lake ice cover, and increased lake-effect snow. These changes have direct implications for economically important wildlife, such as deer and waterfowl. Deer hunting alone contributes $482 million annually to Wisconsin’s economy. The goal of this project was to identify how winter severity, snowpack, and lake ice could change through the mid- and late-21st century, and how species such as the white-tailed deer and mallard duck will respond. Because currently available climate data is at too coarse a scale to provide information on future conditions for the Great...
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Monthly water yields for 105,829 catchments and corresponding flows for 107,691 stream segments were estimated for water years 1951-2012 in the United States part of the Great Lakes Basin. Estimates were computed using the AFINCH (Analysis of Flows In Networks of CHannels) application within the NHDPlus geospatial data framework. AFINCH provides an environment to develop constrained regression models to integrate monthly streamflow and water-use data with monthly climatic data and fixed basin characteristics data available within NHDPlus or supplied by the user. Monthly flow time series for individual stream segments can be retrieved and used to approximate monthly flow duration characteristics and to identify possible...
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Problem: The Great Lakes Restoration Initiative (GLRI) was established to accelerate ecosystem restoration in the Great Lakes by confronting the most serious treats to the region, such as nonpoint source pollution, toxic sediments, and invasive species. Much of the effort associated with GLRI is being placed near the most impacted areas in the Great Lakes Basin. Priority Watersheds have been targeted by the Regional Working Group’s Phosphorus Reduction Work Group. These Priority Watersheds (Fox/Green Bay, Saginaw, Genessee, and Maumee) are characterized by having a high density of agricultural land use and have ecosystem impairments that have been clearly identified. The outlet of each of the Priority Watersheds...


    map background search result map search result map Projecting Changes in Snow, Lake Ice, and Winter Severity in the Great Lakes Region for Wildlife-Based Adaptation Planning Official Recognized Boundaries of Fish Habitat Partnerships of the National Fish Habitat Partnership, 2013 Monthly water yields and flows from 1951-2012 for the United States part of the Great Lakes Basin estimated using AFINCH GLRI Edge of Field Watershed Monitoring Project Birds as indicators of contaminants in the Great Lakes - Egg Contaminants Data EROD activity, chromosomal damage, and oxidative stress in response to contaminant exposure to tree swallows (Tachycineta bicolor) nesting in the Great Lakes Areas of Concern: Data Flathead catfish occurrence data for the Great Lakes Basin 1890-2017 Land cover map including wetlands and invasive Phragmites circa 2017 GLRI Edge of Field Watershed Monitoring Project Land cover map including wetlands and invasive Phragmites circa 2017 Flathead catfish occurrence data for the Great Lakes Basin 1890-2017 Birds as indicators of contaminants in the Great Lakes - Egg Contaminants Data EROD activity, chromosomal damage, and oxidative stress in response to contaminant exposure to tree swallows (Tachycineta bicolor) nesting in the Great Lakes Areas of Concern: Data Monthly water yields and flows from 1951-2012 for the United States part of the Great Lakes Basin estimated using AFINCH Projecting Changes in Snow, Lake Ice, and Winter Severity in the Great Lakes Region for Wildlife-Based Adaptation Planning Official Recognized Boundaries of Fish Habitat Partnerships of the National Fish Habitat Partnership, 2013