Renowned NASA climate scientist Dr. Jim Hansen often opens his public lectures with a discussion of the monarch butterfly migration. He has helped his grandchildren raise milkweed on their farm and for years they have followed the life cycle of monarchs through to fall migration.
The Hansen youth have also been involved as “citizen scientists” participating in tagging the migrating monarchs.
5 Simple Tips for Saving Vanishing Species in Your Yard and Community When I was a child my parents subscribed to National Geographic and I always looked forward every month to see what new wonders of the world they would surprise and delight us with in their latest issue. We kept those magazines for years […]
Number of Monarch butterflies overwintering in California holds steady, but still well below the 1990s
Data released today show that more monarch butterflies were counted at overwintering sites in California this year compared to last year. While this is welcome news, the number of butterflies is still well below peak numbers from the 1990s. Volunteers with the Western Monarch Thanksgiving Count visited 162 sites in coastal California and tallied a […]
Monarchs and Milkweeds in Farmscapes: Making Safe Havens through Planting Conservation Strips in Highly Diverse, Low Input Fields, Orchards and Pastures
It is likely that at least 170,000,000 acres of actively-sown annual field crops in American farmscapes are now depleted of their formerly-abundant milkweeds and monarch butterflies.
This last year, tens of thousands of children across the Midwest watched IMAX film Flight of the Butterflies on the miraculous migration of monarch butterflies from Canada and the U.S. to their winter habitat in the mountains of central Mexico. This migration typically gives cause for celebration among millions of schoolchildren and citizen scientists alike. […]
Milkweed loss in agricultural fields because of herbicide use: effect on the monarch butterfly population Monarch butterflies (Danaus plexippus L. Lepidoptera: Danainae) in the Eastern North American migratory population undergo a multi-generation annual cycle that includes wintering in central Mexico. In the spring, adults that have overwintered migrate north and reproduce in Texas and states […]
Monarch butterflies migrate to Mexico each fall from Canada and the United States to overwinter in forested areas in mountains west of Mexico City. This migration is truly spectacular and is one of the most magnificent and intriguing of all natural phenomena. The very existence of this migration is under threat due to illegal logging […]
The annual migration of monarch butterflies (Danaus plexippus) has high cultural value and recent surveys indicate monarch populations are declining. Protecting migratory species is complex because they cross international borders and depend on multiple regions. Understanding how much, and where, humans place value on migratory species can facilitate market-based conservation approaches. We performed a contingent […]