Dr. Hay's Research Group

Ph.D., Ecology and Evolutionary Biology, University of California, Irvine
Phone: (404) 894-8429
Fax: (404) 385-4440
Office: (ES&T) 2102/2185

Post-Doctoral Associates

Esther Ngumbi
Tonya Shearer

Research Scientist & ICBG Program Manager

Sebastian Engel

Ph.D. Students

Deanna Beatty
Cody Clements
Claire Dell
David Gibbs

Mark's Past Students


Tiffany Andras
Chris Lane


Chemical Warfare on Coral Reefs: Suppressing a Competitor Enhances Susceptibility to a Predator
Reuters - Over-fishing seen as culprit in Fiji coral collapse
Video Study Shows Picky Eater Fish Threaten Endangered Coral Reefs
The Coral-Seaweed Battleground
Coral Reef 911: Corals Attacked by Seaweed Use Chemical Signals to Summon Help
Overfishing gives toxic seaweeds an edge in their competition with corals
Killer Seaweed: Scientists Find First Proof that Chemicals from Seaweeds Damage Coral on Contact
Oceanography : Ripple Marks The Story Behind the Story
National Geographic : Naked Science : Aquarius
NPR : Science Out of the Box : Stinky Fish
Marine Phytoplankton Changes Form to Protect Itself - Research Horizons
Coral Choir - Audubon
Live Rock - Conservation in Practice
In Fiji locals grow “live rock” for aquarium trade with university help - Mongabay.com
Life under the sea - Research Horizons
Reefing the Benefits - Research Horizons
Signals in the Sea - Research Horizons
Under the Sea - Georgia Tech Alumni Magazine
Under the Sea