Communication and Perception
Diadema antillarum has a highly developed light sensitivity. When a shadow appears, the urchin waves its spines in the direction of the shadow and moves away from the shadow, often into a more protected area. In this sense, D. antillarum can almost 'see' predators. It is not known how individuals communicate with each other to aggregate.
Communication Channels: chemical
Other Communication Modes: photic/bioluminescent
Perception Channels: visual ; tactile ; chemical
- Waller, G. 1996. SeaLife: A Complete Guide to the Marine Environment. Washington D.C.: Smithsonian Institution Press.
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©1995-2012, The Regents of the University of Michigan and its licensors
© The Regents of the University of Michigan and its licensors
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Animal Diversity Web
Editor: Stephanie Fabritius, Southwestern University
Author: Erin Puckett, Southwestern University
Editor: Renee Sherman Mulcrone,
Puckett, E. 2002. "Diadema antillarum" (On-line), Animal Diversity Web. Accessed April 04, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Diadema_antillarum.html
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