Loading ...
Sorry, an error occurred while loading the content.

Global Warming Is Spurring Evolution

Expand Messages
  • Light Eye
    Dear Friends, Click the link if you can t proceed to page 2. http://news.nationalgeographic.com/news/2006/06/060608-global-warming.html LOve and Light. David
    Message 1 of 2 , Jun 9, 2006
    • 0 Attachment
      Dear Friends,

      Click the link if you can't proceed to page 2.

      http://news.nationalgeographic.com/news/2006/06/060608-global-warming.html

      LOve and Light.

      David

      Global Warming Is Spurring Evolution, Study Says Richard A. Lovett
      for National Geographic News

      June 8, 2006

      German birds are changing migration patterns. Canadian red squirrels are reproducing earlier in the year. Mosquitoes in Newfoundland remain active longer into August. Traditionally, scientists have viewed such changes simply as behavior modifications in the face of a changing environment—in this case, global warming.


      (See National Geographic magazine's "Global Warning: Signs From Earth.")
      But scientists say these shifts provide mounting evidence that for some animals, global warming is sparking genetic changes that are altering the ecosystems we live in. The effect is most striking in the northern latitudes, where climates are becoming more and more like those in the south, researchers say. (See "Global Warming Fast Facts.") "Over the past 40 years, animal species have been extending their range toward the poles, and populations have been migrating, developing, or reproducing earlier," said William Bradshaw, an evolutionary geneticist at the University of Oregon in Eugene. These shifts aren't simply a response to warmer summers but instead reflect recent and rapid changes to the climate at large, Bradshaw and colleague Christina Holzapfel argue in tomorrow's issue of the journal Science. "The emphasis on summer temperatures is just plain wrong," Holzapfel said. "Midsummer temperatures in Florida aren't all that different from
      Fairbanks, Alaska. This is about lengthening growing season and the timing of seasonal events." Warming and Evolution Many animals use changing daylight as a signal for when to mate, migrate, or hibernate. Continued on Next Page >>




      [Non-text portions of this message have been removed]
    • Emily EBE
      A girl and a boy made a contact with UFO 2002. in Croatia on Mosor mountain near Split. They didn`t be in physical contact, they comunicated through crop
      Message 2 of 2 , Jun 9, 2006
      • 0 Attachment
        A girl and a boy made a contact with UFO 2002. in Croatia on Mosor mountain near Split. They didn`t be in physical contact, they comunicated through "crop" circles.N ewspapers helped them to recieve a message and they went on Mosor, made a circle and got an answer near their circles...They won`t tell the meaning of circles.

        __________________________________________________
        Do You Yahoo!?
        Tired of spam? Yahoo! Mail has the best spam protection around
        http://mail.yahoo.com

        [Non-text portions of this message have been removed]
      Your message has been successfully submitted and would be delivered to recipients shortly.