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Geographically conserved rates of background mortality among common reef-building corals in Lhaviyani Atoll, Maldives, versus northern Great Barrier Reef, Australia

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dc.contributor Australian Institute Of Marine Science
dc.contributor Univ Derby
dc.contributor Mol Hlth & Dis Lab
dc.contributor Dept Conservat Biol & Ecosyst
dc.contributor James Cook Univ
dc.contributor James Cook University
dc.contributor Australian Inst Marine Sci
dc.contributor Arc Ctr Excellence Coral Reef Studies
dc.contributor University Of Derby
dc.contributor Sch Marine Biol
dc.contributor.author PRATCHETT, MORGAN STUART
dc.contributor.author PISAPIA, CHIARA
dc.contributor.author SWEET, MICHAEL
dc.contributor.author SWEATMAN, HUGH
dc.date.accessioned 2015-10-06T00:12:10Z
dc.date.accessioned 2017-03-21T01:01:39Z
dc.date.accessioned 2015-10-06T00:12:10Z
dc.date.accessioned 2019-07-08T02:16:41Z
dc.date.available 2015-10-06T00:12:10Z
dc.date.available 2015-10-06T00:12:10Z
dc.date.available 2017-03-21T01:01:39Z
dc.date.available 2019-07-08T02:16:41Z
dc.date.issued 2015-08-01
dc.identifier.citation Pisapia C, Sweet M, Sweatman H, Pratchett MS (2015) Geographically conserved rates of background mortality among common reef-building corals in Lhaviyani Atoll, Maldives, versus northern Great Barrier Reef, Australia. Marine Biology 162(8): 1579-1586 en_US
dc.identifier.issn 0025-3162
dc.identifier.uri http://epubs.aims.gov.au/11068/11318
dc.description.abstract Even in the absence of major disturbances (e.g., cyclones and bleaching), corals are consistently subject to high levels of background mortality, which undermines individual fitness and resilience of coral colonies. Most studies of coral mortality however only focus on catastrophic mortality associated with major acute disturbance events, neglecting to consider background levels of chronic mortality that have a significant influence on population structure and turnover. If, for example, there are geographic differences in the prevalence of injuries and rates of background mortality, coral communities may vary in their susceptibility to acute large-scale disturbances and environmental change. This study quantified the prevalence and severity of partial mortality for four dominant and widespread coral taxa (massive Porites, encrusting Montipora, Acropora hyacinthus, and branching Pocillopora) at Lhaviyani Atoll, Maldives, and on the northern Great Barrier Reef, Australia. The prevalence and severity of sublethal injuries varied greatly among taxa, but was generally similar between locations; on the Great Barrier Reef, 99.4 % Porites colonies, 66 % of A. hyacinthus, and 64 % of Pocillopora had conspicuous injuries, compared to 92.4 % of Porites, 47.5 % of A. hyacinthus, and 44 % of Pocillopora colonies in Lhaviyani Atoll. These results suggest that background rates of mortality and injury, and associated resilience of coral populations and communities to large-scale disturbances, are conserved at large geographic scales, though adjacent colonies can have markedly different injury regimes, likely to lead to strong intraspecific variation in colony fitness and resilience.
dc.description.sponsorship This study was funded by the ARC Centre of Excellence of Coral Reef Studies and AIMS@JCU. The authors are indebted to M. Trapon, K. Anderson, J. Casey, D. Burn, and B. Taylor for assistance in the field and to the staff at Lizard Island Research Station, and Korallionlab for field and logistical support.
dc.description.uri http://link.springer.com/article/10.1007/s00227-015-2694-9 en_US
dc.language English
dc.language.iso en en_US
dc.publisher Springer en_US
dc.relation.ispartof Null
dc.subject Temperature
dc.subject Regeneration
dc.subject Consequences
dc.subject Growth
dc.subject Disturbance
dc.subject Damage
dc.subject Marine & Freshwater Biology
dc.subject Community
dc.subject Assemblages
dc.subject Scleractinian Corals
dc.subject Recovery
dc.title Geographically conserved rates of background mortality among common reef-building corals in Lhaviyani Atoll, Maldives, versus northern Great Barrier Reef, Australia
dc.type journal article en_US
dc.identifier.doi 10.1007/s00227-015-2694-9
dc.identifier.wos WOS:000359384600006


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