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Diadenia africanum sp. nov. Rodríguez et al. 2013 occurs in the eastern Atlantic Ocean at depths of 1-80 meters off Ma- deira… Expand The needle-spined urchin, Diadema setosum, reported on 12 August 2006 from the southern coast of Turkey, is the first Erythrean… Expand SummaryAn ultrastructural study of the tube foot wall of a regular echinoid,Diadema antillarum, was made. Ciliated microvillous… Expand Abstract.— The causes of speciation in the sea are rarely obvious, because geographical barriers are not conspicuous and… Expand . 1996. Demographic approaches to community dynamics: A coral reef example. Ecology 77: 2256–2260. , B. D. KELLER, J. B. C… Expand When food-limited,Diadema antillarum increases the relative size of Aristotle's lantern compared to the size of the test. This is… Expand s with Programs, v.17(7), p.598. HAWKINS, C.M., and LEWIS, J.B., 1982, Ecological energetics of the tropical sea urchin Diadema… Expand [Extract] During the summer of 1983 Jamaican populations of the ubiquitous spiny sea urchin, Diadema antillarum Philippi… Expand Between patch reefs and marine grass communities there is normally a zone or "halo" of heavily grazed grass 2 to 10 meters wide… Expand Diadema antillarum possesses a sensitive escape response to juices of crushed conspecific sea urchins. Stimulation usually… Expand