Photographs by Norbert Wu
Scientists at Palmer Station (sponsored by the National Science Foundation) have studied these Adelie penguin populations for over 20 years.  They have determined that the number of penguins and rookeries have plummeted in this period, to as low as 20% of original populations.  Adelie penguins, which require snow on the ground for part of the breeding season, are being displaced by other species of penguins which previously ranged northwards. 
  • AA_0126_ANP_20090131_0021
    • |
  • Adelie penguin rookery, Torgerson Island, Antarctic Peninsula, near Palmer Station, January 2009
    • |
  • © Norbert Wu, www.norbertwu.com
  • AA_0127_ANP_201001019_0356
    • |
  • Adelie penguin rookery, Torgerson Island, Antarctic Peninsula, near Palmer Station, January 2009 Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0001
    • |
  • Adelie penguin rookery, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0002
    • |
  • Adelie penguin rookery, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0003
    • |
  • Adelie penguin rookery, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0004
    • |
  • Adelie penguin rookery, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0005
    • |
  • Adelie penguin rookeries are decining rapidly, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0006
    • |
  • populations of Adelie penguins and their rookeries are decining rapidly, probably due to global warming, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010
  • BGALLERY_0007
    • |
  • populations of Adelie penguins and their rookeries are decining rapidly, probably due to global warming, Torgeson Island, Antarctic Peninsula, Palmer Station, January 2010