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Projections of coral cover and habitat change on turbid reefs under future sea-level rise

Dr. Kyle Morgan | AXA Research Fellow, Asian School of the Environment, Nanyang Technological University, Singapore.

Reef E Talks BUTTON UPDATENovember 16th | 09:00 am  (CEST)

 Kyle Morgan Small


Global sea-level rise (SLR) is projected to increase water depths above coral reefs. Although the impacts of climate disturbance events on coral cover and three-dimensional complexity are well documented, knowledge of how higher sea levels will influence future reef habitat extent and bioconstruction is limited. Here, we use 31 reef cores, coupled with detailed benthic ecological data, from turbid reefs on the central Great Barrier Reef, Australia, to model broad-scale changes in reef habitat following adjustments to reef geomorphology under different SLR scenarios. Model outputs show that modest increases in relative water depth above reefs (Representative Concentration Pathway (RCP) 4.5) over the next 100 years will increase the spatial extent of habitats with low coral cover and generic diversity. More severe SLR (RCP8.5) will completely submerge reef flats and move reef slope coral communities below the euphotic depth, despite the high vertical accretion rates that characterize these reefs. Our findings suggest adverse future trajectories associated with high emission climate scenarios which could threaten turbid reefs globally and their capacity to act as coral refugia from climate change.





 Chris Perry Better                                                                                YouTube

Bleaching-driven reef community shifts: impacts on carbonate budgets and reef sediment generation

Professor Chris Perry | Chair in Tropical Coastal Geoscience, Geography Department, University of Exeter, UK.



 David Booth                                                                                          YouTube

Opposing climate-change impacts on poleward-shifting coral-reef fishes

Professor David J. Booth | School of Life Sciences University of Technology Sydney



Bild Julia.klein                                                                          YouTube

Three-dimensional digital mapping of ecosystems: a new era in spatial ecology

Tim D'Urban Jackson | School of Ocean Sciences | Bangor University



Bild Julia.klein                                                                            YouTube

Contrasting responses of the coral Acropora tenuis to moderate and strong light limitation in coastal waters

Dr. Julia Strahl | Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg



Tom Bridge

Revising coral systematics and biogeography, and why it matters for coral reef conservation

Dr. Tom Bridge | Senior Research Fellow, ARC Centre of Excellence for Coral Reef Studies, James Cook University

Recording can be available upon request



 Mikhail Matz                                                                                    YouTube

Estimating the potential for coral adaptation to global warming in the Indo-West-Pacific

Professor Mikhail Matz | Matz Lab | Department of Integrative Biology | The University of Texas at Austin