A Tale of a Thistle One park’s conservation efforts for a rare species
Whitefish Dunes State Park
Pitcher’s Thistle Federally listed in 1973 Threatened Lake Michigan, Huron and Superior Sand Dune Environment
Plant History
Beginning Counts First count in 1989 Jim Hale Ginny Haen Volunteer counters Beach Closed Whitefish Bay Counts
Current Count Began in 2001 Dara Olson – Biology Intern Compiled past data Created signage Established count days
Dividing the Dunes Lake front dune system broken into three sections Each area broken into smaller parts or sections Drawing of each smaller segments with tally sheet on back Old Baldy counted separately
Section Drawing Sheets
Recording Sheet Size Class Blossom /Adult More than 4 leaves 4 or less leaves /seedlings Date: Names of Counters:
Size Classifications Three size classes Identify growth rates over time
Baby Size Class 4 or less leaves Seedling
Young Adult/Teen Size Class More than 4 leaves Rosette
Adults Size Class Blossom present Standing dead
Count Day
Finding Thistles
Nursery Colony
Old Baldy Count
Protection
Results over Time
Data Share compatible data Notice trends Monitor sudden changes Establish a data base record Increase conservation efforts Provide numbers
Creating your own count Bring in the experts Excite park visitors and local residents Provide long term numbers & data Show conservation efforts Create Protectors!
Volunteers Clear instructions Be flexible Age Offer food Advertise statewide
The End