Monarch Joint Venture Blog
Annual Research Review: A Summary of the Latest Scientific Findings About Monarch Butterflies.
MJV is excited to share our first annual review of academic literature published on monarchs and their habitat. Read More
FAQ: 2020 Western Monarch Overwintering Numbers
How do this year's numbers compare? Did the pandemic affect the results? What's wrong with tropical milkweed? What about raising monarchs? Why am I seeing more monarchs in my yard if the pop. is down? What can I do? We've answered these questions and more! Read More
Only 1,914 western monarchs observed at overwintering sites during the 2020 Thanksgiving Count
The western monarch population is down 99.9% from historical estimates of overwintering populations in the 1980s. Read More
Eastern Monarch Population Numbers Decrease 53% from Last Year
Eastern monarch population numbers have been released for 2019-2020. Read More
Western Monarch Population Remains Critically Low
2019 Western Monarch Thanksgiving Count reveals a critically low California overwintering population, almost identical to last year's population. Read More