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Tuesday, February 7 • 6:00pm - 9:00pm
Poster Display. Fuel for Shorebirds: A Survey of Potential Invertebrate Prey Items Along Northern Lake Michigan’s Coastline During Nesting and Migration

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AUTHORS: Lisa A Pashnik, US Geological Survey Great Lakes Science Center; Taaja R Tucker, CSS-Dynamac/US Geological Survey Great Lakes Science Center; Erica L Johnson, US Geological Survey Forest and Rangeland Ecosystem Science Center; Stephen C Riley, US Geological Survey Great Lakes Science Center

ABSTRACT: A variety of shorebirds, including the endangered Piping Plover (Charadrius melodus), prey upon insects and other invertebrates along the shoreline of Sleeping Bear Dunes National Lakeshore (SLBE) in northern Michigan. Piping Plovers are visual predators that pick prey items off the sand surface along the swash zone, although little is known about what invertebrates they ingest. To determine what insects were available to Piping Plovers and other shorebirds throughout the nesting season and fall migration, 10-15 sticky traps were set once monthly from June to September 2014 and July to August 2015 for three 4-hr time periods.  All birds observed within view of the sticky traps were identified and counted during the sampling period. Captured insects were identified to lowest possible taxonomic level and insect abundance and community composition were compared between daily time periods, over the sampling season, between sites, and against weather data. Results were compared to previous studies from the 1980s and late 2000s to determine if insect abundance and community structure differed over time along SLBE shorelines. A summary of the birds frequenting the survey sites is provided.

Tuesday February 7, 2017 6:00pm - 9:00pm CST
Lancaster Ballroom

Attendees (1)