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Welcome to the interactive web schedule for the 2019 Midwest Fish & Wildlife Conference! The schedule is subject to change (as of November 7, 2018). Please check back for updates. To return to the main Conference website, go to: www.midwestfw.org.

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Monday, January 28 • 1:20pm - 1:40pm
(WILDLIFE: WATERFOWL) Habitat Heterogeneity and Wetland-dependent Bird Use in Wisconsin's Glacial Habitat Restoration Area

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AUTHORS: Zack Loken, University of Wisconsin at Stevens Point; Jacob Straub, University of Wisconsin at Stevens Point; Rachel Schultz, State University of New York at Brockport

ABSTRACT: The Glacial Habitat Restoration Area (GHRA) is a 558,879-acre restoration zone in east-central Wisconsin. The GHRA was designed to enhance wildlife habitat, especially for waterbirds, through wetland restorations. We observed and counted all waterbirds on wetland basins from April – May of 2017 and 2018 using fixed location focal scans. We categorized study wetlands into 3 groups based on hydrologic modification: scrape; scrape plus wetlands with ditch plug, ditch-fill, and/or tile break; and scrape plus berm and/or berm with a water control structure. Two reference groups were included: Waterfowl Production Areas and unmodified sites without basins. Wetland plant communities were categorized following the Natural Heritage Inventory database, mapped using aerial imagery, and field checked for accuracy. After plant communities had been digitized, habitat heterogeneity was assessed within each wetland property using an interspersion-juxtaposition index (IJI). Greater values of IJI indicated that community types were more evenly dispersed throughout the wetland than areas with large blocks of similar vegetation. Wetlands with diverse habitat types distributed throughout their basins may be more attractive to waterfowl than those with a homogenous composition. Analysis of year-one data found that habitat heterogeneity, of the 38 properties, ranged from 17.7 to 85.5 and differed among hydrologic modification categories (P = 0.04). Data from year two is currently undergoing analysis. Our results will be used to assess landscape scale factors that might influence the use of restored wetlands by wetland-dependent bird species.

Monday January 28, 2019 1:20pm - 1:40pm
CENTER STREET ROOM D

Attendees (1)