Monarch Watch Blog

Archive for the ‘Monarch Population Status’ Category

Monarch Population Status

19 March 2012 | Author: Chip Taylor

The size of the overwintering monarch population in Mexico is usually released in late January or February. Early reporting helps all of us plan for the season ahead. Unfortunately, for reasons that are not clear, this report wasn't released to ...

Filed under Mexico, Monarch Conservation, Monarch Migration, Monarch Population Status | 8 Comments »

Monarch Population Status

22 November 2011 | Author: admin

In the last update of the eastern monarch population (late September) we noted that it would be interesting to see how monarchs cope with the lack of nectar and water in Texas. We knew that the migration would make it ...

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Monarch Population Status

22 September 2011 | Author: Chip Taylor

The following is a brief update on the status of the eastern monarch population. The leading edge of the migration has now reached northern Texas. As many of you know, we attempt to follow the monarch population closely. Based on our ...

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Monarch Population Status

2 August 2011 | Author: Chip Taylor

Monarch Watch turns 20! We started our monarch tagging program in September of 1992 - it doesn't seem that long ago but I guess that we have been so busy that we lost track of the passing years. We began ...

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Monarch Population Status

26 April 2011 | Author: Chip Taylor

I've been monitoring the reports of returning monarchs quite closely this spring. The pattern of the return this year is similar to that seen in 2006 but more exaggerated, with more monarchs moving into the mid latitudes (35-42N) than in ...

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Monarch Population Status

10 July 2010 | Author: Chip Taylor

If you have been following the news about monarch populations over the last 8 months, you know that the 2009 overwintering monarch population in Mexico covered a forest area of only 1.92 hectares. This figure represents an all time low ...

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Monarch Population Status

12 May 2010 | Author: Chip Taylor

Abstract Monarchs are off to a good start and the population should increase modestly from now until the fall migration, assuming normal temperatures for the remainder of the breeding season. While an increase is likely, we still don’t have a good ...

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Post-Storm Status of the Monarch Colonies in Mexico

2 March 2010 | Author: Chip Taylor

In previous blog posts we have described the conditions during the breeding season that resulted in a small migratory population, provided the report from Eduardo Rendón (WWFMexico) indicating that the overwintering population was at an all time low (1.92 hectares), ...

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Monarch Population Status

19 February 2010 | Author: Chip Taylor

The last year has been tough on monarchs. Hotter than normal conditions for returning monarchs in the spring of 2009, followed by the fourth coldest summer since 1928 in the breeding areas and less than optimal conditions during the fall ...

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Monarch Population Status

18 January 2010 | Author: Chip Taylor

Each December Eduardo Rendón from the World Wildlife Fund Mexico and a team of biologists search for and measure each monarch overwintering colony - those within the Monarch Butterfly Biosphere Reserve (MBBR) and those outside this area as well. ...

Filed under Monarch Population Status | 2 Comments »