title: Grazing by the Echinoid Diadema antillarum Philippi: Formation of Halos around West Indian Patch Reefs.
abstract: Between patch reefs and marine grass communities there is normally a zone or "halo" of heavily grazed grass 2 to 10 meters wide. Grazing by the echinoid Diadema antillarum Philippi during nocturnal migrations off the reefs is found to be the major factor in the formation of halos.
authors.forename: J C
authors.initials: JC
authors.lastname: Ogden
authors.forename: R A
authors.initials: RA
authors.lastname: Brown
authors.forename: N
authors.initials: N
authors.lastname: Salesky