The Karner blue butterfly is a federally endangered butterfly. Wisconsin is one of the last remaining strongholds in the entire Karner range. The Karner Volunteer Monitoring Program's goals are to document Karner observations throughout the state in order to track the population status, distribution, and trends. These data add to our long term data set and also aid the DNR in habitat management decisions. Data collected by volunteers is instrumental in allowing us to meet these goals.
Karners, like other butterflies, are very sensitive to environmental changes making them excellent indicators
of healthy ecosystems. They serve as an early warning system for the ecosystem.
Karners' only host plant, wild lupine, grows in sandy soils, commonly found in barrens, prairies, and savannas. These types of habitat are also globally imperiled. The conservation and restoration work we do for Karners also benefits these habitats which over 50 other SGCNs (species of greatest conservation need) require for survival.
Visit the DNR website to learn more.