Monarch Population Status

18 August 2023 | Author: Chip Taylor

Eastern Monarch Population I recently agreed to write up a brief update on the status of the population at the start of the migration. Sure, I said, that’s easy – I can write about the fact that the migration has started ...

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Monarchs: Weather and population sizes in the past

21 July 2023 | Author: Chip Taylor

Monarchs: Weather and population sizes in the past by Chip Taylor, Director, Monarch Watch If you have been reading about monarchs, you know they have declined in number. One account after another maintains that the population has declined 90% or, more conservatively, ...

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Monarchs: Reaching 50N and beyond

9 July 2023 | Author: Chip Taylor

Monarchs: Reaching 50N and beyond by Chip Taylor, Director, Monarch Watch This text is all about the journey north by monarchs to reach 50N and beyond in Canada. And it’s based on first sightings data posted to Journey North. In this short ...

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The decline and recovery in western monarch numbers from 2020-2022

7 July 2023 | Author: Chip Taylor

What data from iNaturalist tells us about the decline and recovery in western monarch numbers from 2020-2022 by Chip Taylor, Director, Monarch Watch In a previous post to this Blog (The Western monarch puzzle: the decline and increase in monarch numbers), I ...

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The pending decision: Will monarchs be designated as threatened or endangered?

14 June 2023 | Author: Chip Taylor

The pending decision: Will monarchs be designated as threatened or endangered? by Chip Taylor Introduction As many of you know the Fish and Wildlife Service (FWS), a division of the Department of the Interior, has been mandated to make a determination as to whether ...

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The Western monarch puzzle: the decline and increase in monarch numbers

29 May 2023 | Author: Chip Taylor

Preamble The first draft of the text that follows was written without consulting the literature. I wanted to work out my interpretations without the weight of the points of view of others. While I drew on my memory of the literature ...

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Monarch numbers: trends due to weather and climate

27 March 2023 | Author: Chip Taylor

Monarch numbers: trends due to weather and climate Chip Taylor, Director, Monarch Watch The U.S. Fish and Wildlife Service will be making a decision as to whether to list the monarch as either threatened or endangered under the Endangered Species Act as ...

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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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Development of the 2022 monarch population so far

18 May 2022 | Author: Chip Taylor

Predicting how the population will develop each year is a challenge. As recently as the 22nd of April, we posted a rather dismal account of the status of the population. This assessment was based on reports to Journey North, iNaturalist ...

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