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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  

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©  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  

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©  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  

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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!  

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Photo by Lauren Cook

Turn  the  Lights  Off  When  You’re  Not  There  to  Use  Them