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3D photogrammetry quantifies growth and external erosion of individual coral colonies and skeletons

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dc.contributor Australian Institute Of Marine Science
dc.contributor Ecol Ctr
dc.contributor Univ Sydney
dc.contributor Sch Life & Environm Sci
dc.contributor Sch Med Sci
dc.contributor James Cook Univ
dc.contributor Global Change Inst
dc.contributor University Of Queensland
dc.contributor Univ Queensland
dc.contributor Arc Ctr Excellence Coral Reef Studies
dc.contributor Utah System Of Higher Education
dc.contributor Utah State Univ
dc.contributor Dept Watershed Sci
dc.contributor Utah State University
dc.contributor James Cook University
dc.contributor University Of Sydney
dc.contributor Australian Inst Marine Sci BYRNE, MARIA FERRARI, RENATA FIGUEIRA, WILL F. PRATCHETT, MORGAN S. BOUBE, TATIANA ADAM, ARNE KOBELKOWSKY-VIDRIO, TANIA DOO, STEVE S. ATWOOD, TRISHA BROOKE 2018-01-21T18:41:52Z 2018-01-21T18:41:52Z 2019-10-21T21:32:19Z 2018-01-21T18:41:52Z 2018-01-21T18:41:52Z 2019-10-21T21:32:19Z 2017-12-01
dc.identifier.citation Ferrari R, Figueira WF, Pratchett MS, Boube T, Adam A, Kobelkowsky-Vidrio T, Doo SS, Atwood TB, Byrne M (2017) 3D photogrammetry quantifies growth and external erosion of individual coral colonies and skeletons. Scientific Reports 7: 16737
dc.identifier.issn 2045-2322
dc.description.abstract Growth and contraction of ecosystem engineers, such as trees, influence ecosystem structure and function. On coral reefs, methods to measure small changes in the structure of microhabitats, driven by growth of coral colonies and contraction of skeletons, are extremely limited. We used 3D reconstructions to quantify changes in the external structure of coral colonies of tabular Acropora spp., the dominant habitat-forming corals in shallow exposed reefs across the Pacific. The volume and surface area of live colonies increased by 21% and 22%, respectively, in 12 months, corresponding to a mean annual linear extension of 5.62 cm yr(-1) (+/- 1.81 SE). The volume and surface area of dead skeletons decreased by 52% and 47%, respectively, corresponding to a mean decline in linear extension of -29.56 cm yr(-1) (+/- 7.08 SE), which accounted for both erosion and fragmentation of dead colonies. This is the first study to use 3D photogrammetry to assess fine-scale structural changes of entire individual colonies in situ, quantifying coral growth and contraction. The high-resolution of the technique allows for detection of changes on reef structure faster than other non-intrusive approaches. These results improve our capacity to measure the drivers underpinning ecosystem biodiversity, status and trajectory.
dc.description.sponsorship Funding was provided by the Great Barrier Reef Foundation (MB, WF, RF), an Australian Department of Education Postdoctoral Endeavour Fellowship (TBA) and an Ian Potter Foundation Lizard Island Doctoral Fellowship (SD). The assistance of staff and volunteers at Lizard Island Research station is also acknowledged.
dc.language English
dc.subject Great-barrier-reef
dc.subject Tropical Cyclones
dc.subject Consequences
dc.subject Science & Technology - Other Topics
dc.subject Fisheries
dc.subject Calcification
dc.subject Multidisciplinary Sciences
dc.subject Climate-change
dc.subject Structure-from-motion
dc.subject Structural Complexity
dc.subject Ocean Acidification
dc.subject Ecosystems
dc.title 3D photogrammetry quantifies growth and external erosion of individual coral colonies and skeletons
dc.type journal article
dc.identifier.doi 10.1038/s41598-017-16408-z
dc.identifier.wos WOS:000416938200045

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