Monarch Joint Venture Blog
Eastern Monarch Butterfly Population Falls to Less than One Hectare in the 2023-2024 Overwintering Season
Monarch butterflies occupied 0.9 hectares, 1.31 less than the 2.21 hectares in the 2022-2023 overwintering season. This is the first time since the 2013-2014 overwintering season that the eastern monarch population has occupied less than one hectare. Read More
2021 Thanksgiving Count Shows Almost 250,000 Overwintering Western Monarchs: Let’s Celebrate, and then Get to Work
With the 2021 Thanksgiving Count showing almost 250,000 overwintering western monarchs, conservationists are relieved, and also scratching their heads. Read More
Monarchs and Día de Muertos in Mexico
The annual return of monarch butterflies to Mexico coincides with Día de Muertos and carries strong cultural significance in Michoacán and the State of Mexico. Read More
Field Notes: State of Mexico, Mexico, January 28-February 1, 2019
Alison Cariveau, MJV Science Coordinator, shares her recent visit to Mexico to participate in the Trinational Monarch Science Meeting, and visit a monarch overwintering sanctuary. Read More
A 10,000 Foot View of Monarch Conservation
Monarch conservation has a rich history of science, discovery, and partnerships that has led us to today. As monarchs continue to face complex challenges in our changing landscape, it is important to understand where we’ve been and where we are headed. Read More