caa a22 4500 44581912X CHVBK 20180317145238.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00338-010-0669-3 doi (NATIONALLICENCE)springer-10.1007/s00338-010-0669-3 Parrotfish predation on massive Porites on the Great Barrier Reef [Elektronische Daten] [R. Bonaldo, D. Bellwood] Parrotfish grazing scars on coral colonies were quantified across four reef zones at Lizard Island, Northern Great Barrier Reef (GBR). The abundance of parrotfish grazing scars was highest on reef flat and crest, with massive Porites spp. colonies having more parrotfish grazing scars than all other coral species combined. Massive Porites was the only coral type positively selected for grazing by parrotfishes in all four reef zones. The density of parrotfish grazing scars on massive Porites spp., and the rate of new scar formation, was highest on the reef crest and flat, reflecting the lower massive Porites cover and higher parrotfish abundance in these habitats. Overall, it appears that parrotfish predation pressure on corals could affect the abundance of preferred coral species, especially massive Porites spp, across the reef gradient. Parrotfish predation on corals may have a more important role on the GBR reefs than previously thought. Springer-Verlag, 2010 Reef fish nationallicence Labridae nationallicence Grazing scar nationallicence Corallivory nationallicence Coral reef nationallicence Habitat nationallicence Bonaldo R. Australian Research Council Centre of Excellence for Coral Reef Studies, School of Marine and Tropical Biology, James Cook University, QLD 4811, Townsville, Australia aut Bellwood D. Australian Research Council Centre of Excellence for Coral Reef Studies, School of Marine and Tropical Biology, James Cook University, QLD 4811, Townsville, Australia aut Coral Reefs Springer-Verlag 30/1(2011-03-01), 259-269 0722-4028 30:1<259 2011 30 338 https://doi.org/10.1007/s00338-010-0669-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00338-010-0669-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bonaldo R. Australian Research Council Centre of Excellence for Coral Reef Studies, School of Marine and Tropical Biology, James Cook University, QLD 4811, Townsville, Australia aut NATIONALLICENCE 700 1- Bellwood D. Australian Research Council Centre of Excellence for Coral Reef Studies, School of Marine and Tropical Biology, James Cook University, QLD 4811, Townsville, Australia aut NATIONALLICENCE 773 0- Coral Reefs Springer-Verlag 30/1(2011-03-01), 259-269 0722-4028 30:1<259 2011 30 338 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer