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Monarchs on Long Beach Island

By
Real Estate Agent with Keller Williams Shore Properties 1005238

Monarch ButterflyI was out in my backyard near Long Beach Island and saw a Monarch Butterfly; thinking the migration ended earlier than October, I decided to do a little research and came across an interesting site.

Monarch Butterfly Migration Tracking Project which asks volunteers to help track the monarch butterfly migration each fall and spring as the butterflies travel to and from Mexico. You can report your own observations of migrating butterflies to real-time migration maps.

 

Last year, Long Beach Island, NJ, saw one of the most abundant showings of migrating monarchs in years -- if not decades. Light westerly winds had blown them over to the barrier island. There are far too many to even estimate a count.

 

Monarchs are especially noted for their lengthy annual migration. In North America they make massive southward migrations starting in August until the first frost. A northward migration takes place in the spring. The monarch is the only butterfly that migrates both north and south as the birds do on a regular basis. But no single individual makes the entire round trip. Female monarchs deposit eggs for the next generation during these migrations.

 

By the end of October, the population east of the Rocky Mountains migrates to the Trans-Mexican Volcanic Belt pine-oak forests in the Mexican states of Michoacán and México.

 

The length of these journeys exceeds the normal lifespan of most monarchs, which is less than two months for butterflies born in early summer. The last generation of the summer enters into a non-reproductive phase known as diapause and may live seven months or more. During diapause, butterflies fly to one of many overwintering sites. The generation that overwinters generally does not reproduce until it leaves the overwintering site sometime in February and March.

 

It is thought that the overwinter population of those east of the Rockies may reach as far north as Texas and Oklahoma during the spring migration. It is the second, third and fourth generations that return to their northern locations in the United States and Canada in the spring. How the species manages to return to the same overwintering spots over a gap of several generations is still a subject of research; the flight patterns appear to be inherited, based on a combination of the position of the sun in the sky and a time-compensated Sun compass that depends upon a circadian clock that is based in their antennae. New research has also shown that Monarch butterflies can use the earth's magnetic field for orientation.

 

See the migration from your own home on Long Beach Island.

 

 

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Comments (2)

David Spencer
Keller Williams Northland - Kansas City, MO
Show Me real estate in Kansas City

I think they catch a ride on Contintal or American Airlines, but that is going to change to Southwest because of the baggage fees.

Oct 13, 2011 01:07 PM
Anonymous
Christa

Hi Karl, We have been going to LBI for over 20 years. I am very interested in seeing Monarch butterflies on LBI. Do you know where and when I can find them? Thanks, Christa

Sep 13, 2015 10:03 AM
#2