Ellen Sharp

Monarchs Continue to Arrive, Filling Out the Colony

The Cerro Pelón Chronicles: A Butterflies & Their People Project November 21–27 Migrating monarchs are still in the process of reaching their overwintering sites in Mexico. People in the villages surrounding the Cerro Pelón Sanctuary reported seeing them flying overhead throughout the week. Meanwhile on Cerro Pelón, CEPANAF Ranger Pato Moreno and the Butterflies & Their …

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A Spectacular Start: Monarchs Stay Active on Cerro Pelón

The Cerro Pelón Chronicles: A Butterflies & Their People Project November 15–20, 2017 Last week there was talk in the press about this fall’s monarch migration being a “late” one, because people were still seeing monarchs in large numbers in northern climes at a late date. However, as we reported to Journey North, here on …

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Colony Formation Continues on Cerro Pelón

The Cerro Pelón Chronicles: A Butterflies & Their People Project November 8–12, 2017 Citizen scientist observations inform much of what we know about monarch butterflies’ annual 3,500-mile migration from Canada to Mexico. But during the monarchs’ five-month-long stay in Mexico, very little information their timing, location and behavior reaches the public. (I talk about some …

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Who Gets to Be a Citizen-Scientist?

Democratizing Monarch Studies to Save the Migration Monarch studies offers a case of participatory ecology par excellence. The confirmation of their annual 3,500-mile migration from Canada to their overwintering sites in the mountains of Mexico drew upon the labor of thousands of volunteers. Starting in the 1950s, “citizen-scientists” all over the US and Canada put …

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Don’t Let Mexico Destroy the Monarch Migration

The magnificent annual migration of monarch butterflies from Canada to Mexico is in peril. The number of monarchs making the 3,000-mile trip each fall has plummeted by more than 90% over the past two decades. Despite the migration’s vulnerability, the Mexican government is moving forward with plans to open a highly polluting copper mine in …

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