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Fisheries monitoring data detailing the lengths and or ages of fish caught during state agency fisheries surveys. These data were collected and shared with our team from: Iowa Department of Natural Resources, Illinois Department of Natural Resources, Indiana Department of Natural Resources, Michigan Department of Natural Resources, Minnesota Department of Natural Resources, South Dakota Game, Fish and Parks, and Wisconsin Department of Natural Resources. Data include length and age data for seven sport fish species: black crappie (Pomoxis nigromaculatus), bluegill (Lepomis macrochirus), largemouth bass (Micropterus salmoides), northern pike (Esox lucius), smallmouth bass (Micropterus dolomieu), walleye (Sander vitreus),...
Coregonines are a sub-family of freshwater fishes within the well-known Salmonidae family. In the upper midwestern U.S., these fishes have provided a key food source to Native Americans for millennia and immigrants for the last several centuries. Since the mid-20th century, however, their diversity and abundance has declined owing to several anthropogenic stressors including overfishing, declining quality of key habitat (e.g., dams, eutrophication), and negative interactions with invasive species. Managers of inland lakes in Minnesota and of the Great Lakes in Michigan, Ontario, and New York, and several U.S. Tribes have undertaken various efforts to restore coregonines, including cisco (Coregonus artedi). For example,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2021,
CASC,
Fish,
Fish,
Midwest,
Mounting evidence shows overall insect abundances are in decline globally. Habitat loss, climate change, and pesticides have all been implicated, but their relative effects have never been evaluated in a comprehensive large-scale study. We harmonized 17 years of land use, climate, multiple classes of pesticides, and butterfly survey data across 81 counties in five states in the US Midwest. We find community-wide declines in total butterfly abundance and species richness to be most strongly associated with insecticides in general, and for butterfly species richness the use of neonicotinoid-treated seeds in particular. This included the abundance of the migratory monarch (Danaus plexippus), whose decline is the focus...
Categories: Publication;
Types: Citation
Managing fisheries in a changing socio-ecological environment may require holistic approaches for identifying and adapting to novel ecosystem dynamics. Using 32 years of Ceded Territory of Wisconsin (CTWI) walleye (Sander vitreus) data, we estimated production (P), biomass (B), biomass turnover (P/B), yield (Y), and yield over production (Y/P) and tested for hyperstability in walleye yield. Most CTWI walleye populations showed low P, and B, and Y/P < 1. Yet, production overharvest (Y/P > 1) was prevalent among Wisconsin walleye recruitment-based management approaches (natural recruitment [NR], sustained only by stocking, combination). Production, B, and P/B have declined in NR populations, while Y and Y/P have remained...
Categories: Publication;
Types: Citation
Tree regeneration shapes forest carbon dynamics by determining long-term forest composition and structure, which suggests that threats to natural regeneration may diminish the capacity of forests to replace live tree carbon transferred to the atmosphere or other pools through tree mortality. Yet, the potential implications of tree regeneration patterns for future carbon dynamics have been sparsely studied. We used forest inventory plots to investigate whether the composition of existing tree regeneration is consistent with aboveground carbon stock loss, replacement, or gain for forests across the northeastern and midwestern USA, leveraging a recently developed method to predict the likelihood of sapling recruitment...
Categories: Publication;
Types: Citation
These data include aerobic scope and thermal tolerance measurements from two cisco (Coregonus artedi) populations to evaluate performance and potential adaptation to warming Great Lakes habitats. Cisco come from two stock sources: 1) a northern latitude Lake Huron stock collected as gametes from Les Cheneaux Islands, MI, USA in 2015 and raised in a USGS aquaculture lab in Ann Arbor, MI, and 2) a southern latitude stock from Crooked Lake, Noble County, IN, USA collected as adults from the wild in 2021 and 2022 and brought to Ann Arbor, MI. Data include three primary datasets. "Aerobic Scope Compiled Data" provides measures of cisco (Coregonus artedi) metabolic rates from 30L swim chamber respirometry trials (n=88)....
Floodplain forests along the Upper Mississippi River are heavily managed but understudied systems that provide critical ecosystem services, including habitat for endangered species. Impacts of a changing climate, such as warmer winters and wetter summers with extreme precipitation events, are already influencing hydrologic patterns in these ecosystems, including altering the duration, frequency, and timing of floods. These changes bring numerous challenges to floodplain forest managers. This project will leverage an already established research-management partnership to develop knowledge and tools to inform sustainable decision making. In this project, researchers will utilize multiple sources of “big data” to...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2022,
CASC,
Data Visualization & Tools,
Data Visualization & Tools,
Drought, Fire and Extreme Weather,
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