Monarch Watch Blog

Monarch Population Status

6 March 2025 | Author: Jim Lovett

The WWF-Telmex Telcel Foundation Alliance, in collaboration with the National Commission of Natural Protected Areas (CONANP), the National Autonomous University of Mexico (UNAM), and the Monarch Butterfly Biosphere Reserve (MBBR), announced the total forest area occupied by overwintering monarch colonies ...

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Join the 29th annual Symbolic Monarch Migration!

4 September 2024 | Author: Monarch Watch

Every year, thousands of paper monarchs fly south to Mexico alongside the real monarchs, though with a slightly different pathway. Monarch butterflies only weigh about 0.5 grams, and these paper ones are just as light. The paper butterflies are part ...

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Monarch Population Dynamics: Issues of scale

28 June 2024 | Author: Chip Taylor

By Chip Taylor and John Pleasants How big is the monarch population at the end of each breeding season? How many monarchs initiate the migration and how many successfully reach the overwintering sites in Mexico? The truth is, we don’t know ...

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Monarch Population Status

7 February 2024 | Author: Monarch Watch

The WWF-Telmex Telcel Foundation Alliance, in collaboration with the National Commission of Natural Protected Areas (CONANP), the National Autonomous University of Mexico (UNAM), and the Monarch Butterfly Biosphere Reserve (MBBR), announced the total forest area occupied by overwintering monarch colonies ...

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Background on the relationship of overwintering monarch numbers in 2023-2024 to the extreme drought in October and November 2023

7 February 2024 | Author: Monarch Watch

The text and graphics below are intended to provide the background needed to understand why many of the monarchs in the 2023 fall migration failed to reach the overwintering sites in central Mexico. This is a story of biology, weather ...

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Monarch Population Status

21 March 2023 | Author: Jim Lovett

The WWF-Telmex Telcel Foundation Alliance, in collaboration with the National Commission of Natural Protected Areas (CONANP), the National Autonomous University of Mexico (UNAM), and the Monarch Butterfly Biosphere Reserve (MBBR), announced the total forest area occupied by overwintering monarch colonies ...

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Monarch Watch Update February 2023

11 February 2023 | Author: Jim Lovett

This newsletter was recently sent via email to those who subscribe to our email updates. If you would like to receive periodic email updates from Monarch Watch, please take a moment to complete and submit the short form at monarchwatch.org/subscribe/ Greetings ...

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Monarch Population Status

4 January 2023 | Author: Chip Taylor

Status of the eastern monarch population (as of December 2022) I've said it before, but it bears repeating. Monarch numbers each season are largely due to the timing and numbers from one stage in the annual cycle to the next. Habitat ...

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Monarch numbers in Mexico: predictions and reality

24 May 2022 | Author: Chip Taylor

I was wrong, really, really wrong, and I'm happy about it. The numbers are in and they are much greater – 2.84 hectares – than I predicted. In my January 6 post "How many hectares in 2021-2022?", I went to ...

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Monarch Population Status

24 May 2022 | Author: Jim Lovett

The WWF-Telmex Telcel Foundation Alliance, in collaboration with the National Commission of Natural Protected Areas (CONANP), the National Autonomous University of Mexico (UNAM), and the Monarch Butterfly Biosphere Reserve (MBBR), announced the total forest area occupied by overwintering monarch colonies ...

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