Quasi-extinction risk and population targets for the Eastern, migratory population of monarch butterflies (Danaus plexippus)
Abstract: The Eastern, migratory population of monarch butterflies (Danaus plexippus), an iconic North American insect, has declined by ~80% over the last decade. The monarch’s multi-generational migration between overwintering grounds in central Mexico and the summer breeding grounds in the northern U.S. and southern Canada is celebrated in all three countries and creates shared management …