Jump to content

Welcome to Unexplained Mysteries! Please sign in or create an account to start posting and to access a host of extra features.

- - - - -

Monarch Butterflies and Milkweed

  • Please log in to reply
1 reply to this topic

#1    some new guy

some new guy


  • Member
  • PipPip
  • 324 posts
  • Joined:08 Jun 2013

Posted 22 August 2014 - 09:32 AM

Fewer monarch butterflies are crossing North America to winter in Mexico, and the biggest culprit seems to be the disappearance of milkweed in the United States. The trend is particularly troubling because monarchs have long been considered both an indicator of our ecological health and a representative of pollinator populations.

Monarch butterflies travel up to 3,000 miles each fall to their wintering site in central Mexico, which was discovered by National Geographic grantee Fred A. Urquhart and his team in 1975. Once the butterflies arrive, a census by citizen scientists estimates how many have completed the trip.
In 2004, an estimated 550 million completed the winter migration, while in 2013 only 33 million arrived. Further, between 2012 and 2013, there was a 43.7 percent decrease in the area occupied by the butterflies in their winter sanctuaries


BEST - Ron

#2    Merc14


    anti-woo magician

  • Member
  • 7,840 posts
  • Joined:03 Mar 2011
  • Gender:Male
  • Location:Virginia, USA

Posted 22 August 2014 - 12:53 PM

Plant some milkweed in those bare spots in your backyard folks and help these beautiful butterflies out.

Edited by Merc14, 22 August 2014 - 12:54 PM.

Believing when there is no compelling evidence is a mistake.  The idea is to withhold belief until there is compelling evidence and if the universe does not comply with our predispositions, okay, then we have the wrenching obligation to accommodate to the way the universe really is.  - Carl Sagan

Who is more humble, the scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us or somebody who says everything in this book should be considered the literal truth and never mind the fallibility of the human beings involved in the writing of this legend - Carl Sagan

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users