I remember several years ago being up on the Blue Ridge Parkway and it
coincidentally happened to be the day the Monarch Migration was passing
over. It was at one particular overlook and there were people up there
tagging (capturing & releasing) the Monarchs as they flew past.
That was sometime last century & all the negatives/slides from that trip
got destroyed by Hurricane Fran in 1996.
Funny thing. I had everything in binders in archival sleeves and when
the roof came off & the ceiling came down it knocked all the binders off
the shelf and buried them in muck. I only managed to salvage maybe a
partial page of negatives.
Everything I have from before Fran is stuff I was too neglectful to get
organized the way I was supposed to; stuff that hadn't made it into the
binders.
On 6/11/2022 11:18 AM, Daniel J. Matyola wrote:
Thanks for looking and for the link, Henk!
Whie summer breeding can make up for some of the losses, the total
population is significantly smaller than 2 or 3 decades ago.
Fortunately, there are places where Monarch are active and continue to
breed all year round, including Hawaii and parts of Florida, so there is
little chance of extinction. The mass migration of the Eastern Monarchs to
Mexico is, however, what makes the species unique and so fascinating. If
that is eliminated, or greatly reduced, that would be a tremendous loss.
Dan Matyola
*https://tinyurl.com/DJM-Pentax-Gallery
<https://tinyurl.com/DJM-Pentax-Gallery>*
On Sat, Jun 11, 2022 at 4:32 AM Henk Terhell <[email protected]> wrote:
Interesting information Dan.
Here some positive news on monarchs in an article on NBC:
https://www.nbcnews.com/science/science-news/monarch-butterfly-populations-may-stable-previously-thought-rcna33016
Henk
Op za 11 jun. 2022 om 06:39 schreef Daniel J. Matyola <
[email protected]
:
Each Monarch larva goes through five stages of growth, called instars,
between the time it hatches from the egg until it enters the pupal stage.
The larva molts at the end of each instar, so that it can grow into the
next stage. During this process, it eats only milkweed foliage, and grows
to almost 2,000 times its original mass.
A late fifth instar Monarch will then crawl away from the milkweed plant
it
was feeding on to find a secure location, where it forms a silk pad and
hangs upside down in a J shape, before shedding its skin one last time to
expose the bright green chrysalis.
In this image, the larva on the right has attached its pad to the edge
of a
clay flower pot, and has drawn itself up into the classic "J" shape. On
the left is one that has completed the final molt to expose its
bejewelled
green chrysalis.
http://dan-matyola.squarespace.com/danmatyolas-pesos/2022/6/11/metamorphosis
K-5 IIs, smc DA 35 mm F 2.8 Macro Limited
Comments, criticisms, questions, and suggestions are invited and
appreciated.
Dan Matyola
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