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Ecology of Darkness

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Cindy Luongo Cassidy presents Save the Night! Ecology of Darkness to the 2013 Master Naturalist, Hill Country Chapter training class.

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Ecology of Darkness

  1. 1. 9/3/13 1 Save  the  Night!   The  Ecology  of  Darkness   Presented  by    Cindy  Luongo  Cassidy     What if we woke up one morning only to realize that all of the conservation planning of the last thirty years told only half the story – the daytime story? Catherine Rich Founder, The Urban Wildlands Group ©  C  W  Luongo  2012   Animals,  Plants,  &  Darkness   •  NavigaEon   •  ReproducEon   •  Daily  &  Annual  Rhythms   •  CompeEEon   •  PredaEon     Photos courtesy NOAA and NPS ©  c  luongo  cassidy  2013   Photo  courtesy    Susan  RIley   ©  c  luongo  cassidy  2012  
  2. 2. 9/3/13 2 ©  c  luongo  cassidy  2012   ©  c  luongo  cassidy  2012   ©  c  luongo  cassidy  2013   ©  C  W  Luongo  2012   Do  you  spend  Eme  in  the   unhealthy  glow  of  arEficial  light?   ©  c  luongo  cassidy  2010   ©  c  luongo  cassidy  2012   ©  c  luongo  cassidy  2012   ©  c  luongo  cassidy  2008   Photo  courtesy  Steve  Irvine  
  3. 3. 9/3/13 3 ©  C  W  Luongo  2012   ©  c  luongo  cassidy  2012   ©  c  luongo  cassidy  2013   ©  c  luongo  cassidy  2012   ©  c  luongo  cassidy  2012   Outdoor  LighEng  Challenges   •  Glare,  Safety  and  Security   •  Light  Trespass   •  Wasted  Money  and  Energy   •  Obscures  Our  View  of  the  Stars   •  Ecological  and  Health  Issues   Glare  Kills  Visibility   Good  Visibility  =  Safety  &  Security!   Photos courtesy of Cliff Hass. Safety  at  Home   Light  Trespass  Demo  
  4. 4. 9/3/13 4 Wasted  Energy   Have  you  seen  the  Milky  Way?   Photos courtesy of Joe Roberts Light  PolluEon  SoluEons   •  Start  with  a  Good  Fixture   •  Aim  Lights  Down   •  Shield  Every  Light   •  Reduce  the  Amount  of  Light   •  Turn  it  Off   It’s  not  just  the  Light  Fixture     •  Lumens  MaZer   •  Timers,  MoEon  Detectors,  &  Half   Night  Photocells   •  InstallaEon  MaZers   Aim  Lights  Down   Full  Cutoff  &     Fully  Shielding  the  Light  Source   ©  c  luongo  cassidy  2012   Low  Mounted  Full  Cutoff  Light   ©  c  luongo  cassidy  2012   Shielding  to  Reduce  WaZage!  
  5. 5. 9/3/13 5 Photo by Lauren Cook Turn  the  Lights  Off   When  You’re  Not  There  to  Use  Them  

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