Long Point Bird Observatory
Project name: Canadian Migration Monitoring Network
To generate counts for use in long-term population monitoring of Monarch Butterflies.
Dataset summary :
Data from the one hour Monarch Butterfly Census conducted daily at two locations at Long Point Bird Observatory during fall migration.
Status : Active
Year started :
Years (comments) :
The Monarch Butteryfly Census was added to the LPBO protocol in 1990
Season(s) and frequency :
Geographic area covered :
Long Point Bird Observatory in Southern Ontario.
Type(s) of habitat :
Long Point is ~16,000 ha (39,500 acres) and is composed of sandy beaches, dunes, expansive wetlands, meadows, savannahs, and forests
Primary species covered :
Field methods :
Fall migration of monarch butterflies is monitored at two sites on Long Point: the Tip, at the eastern end of Long Point, and Breakwater, about 15km west of the Tip and closer to the base of the peninsula
Data format :
Data collection methods :
Standardized counts consisted of a 1-h afternoon walking census conducted between 1300-1700 hours along a delineated path, during which a single surveyor counted the number of monarchs seen foraging or passing through the count area.
Crewe, T. L., and J. D. Mccracken. "Long-Term Trends in the Number of Monarch Butterflies (Lepidoptera:Nymphalidae) Counted on Fall Migration at Long Point, Ontario, Canada (1995-2014)." Annals of the Entomological Society of America, August 5, 2015, sav041. doi:10.1093/aesa/sav041.