The Great Lakes population of the piping plover was listed as endangered
under provisions of the U.S. Endangered Species Act on January 10, 1986. The
population declined from a historical population of several hundred breeding
pairs to 17 breeding pairs in 1986. The initial decline of piping plovers was
primarily due to hunting in the late 19th century and early 20th
century until the Migratory Bird Treaty Act of 1918 stopped this activity.
Although populations began to recover, they started to decline again in the
1950s due to increasing habitat loss, recreational pressure, predation and
contaminants. In the late 1970s to mid 1980s, high Great Lakes water levels
temporarily reduced available nesting areas by flooding beaches. Since listing
in 1986, the population has fluctuated between 12 and 25 breeding pairs with
breeding areas largely confined to Michigan. The current small size of the Great
Lakes piping plover population renders it extremely vulnerable to chance
demographic or environmental events which could potentially eradicate this
species from the region.
Michigan has a State piping plover recovery plan and recovery team, whose
members meet annually to direct monitoring and management activities. In
addition, coordination meetings take place regularly to organize seasonal
field-based conservation efforts. Annual breeding site surveys are conducted in
Michigan, and all located nests are monitored throughout the breeding season.
Historical breeding areas are surveyed at least once every five years during the
International Piping Plover Census.
Michigan runs a Piping Plover Patrol during the summer months while the Plovers are nesting. Volunteers are used during this time to interact with beach or park visitors making them aware that the Piping Plover is nesting and point out closed areas of the beach or park.