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  1. Book ; Online: Chapter 4 PREDICTING RESPONSES OF GEO-ECOLOGICALCARBONATE REEF SYSTEMS TO CLIMATE CHANGE:A CONCEPTUAL MODEL AND REVIEW

    BROWNE, NICOLA K. / CUTTLER, MICHAEL / MOON, KATIE / MORGAN, KYLE / ROSS, CLAIRE L. / CASTRO-SANGUINO, CAROLINA / KENNEDY, EMMA / HARRIS, DAN / BARNES, PETER / BAUMAN, ANDREW / BEETHAM, EDDIE / BONESSO, JOSHUA / BOZEC, YVES-MARIE / CORNWALL, CHRISTOPHER / DEE, SHANNON / DECARLO, THOMAS / D'OLIVO, JUAN P. / DOROPOULOS, CHRISTOPHER / EVANS, RICHARD D. /
    EYRE, BRADLEY / GATENBY, PETER / GONZALEZ, MANUEL / HAMYLTON, SARAH / HANSEN, JEFF / LOWE, RYAN

    2021  

    Keywords bic Book Industry Communication ; oceanography, climate change, reefs, marine science, marine conservation, marine research
    Size 1 electronic resource (143 pages)
    Publisher Taylor and Francis
    Document type Book ; Online
    Note English[eng] ; Open Access
    HBZ-ID HT021291011
    ISBN 9780367685225 ; 0367685221
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article: Assessing Reef Island Sensitivity Based on LiDAR-Derived Morphometric Indicators

    Bonesso, Joshua Louis / Cuttler, Michael V.W / Browne, Nicola / Hacker, Jorg / O’Leary, Michael

    Remote Sensing. 2020 Sept. 17, v. 12, no. 18

    2020  

    Abstract: Reef islands are some of the most highly sensitive landforms to the impacts of future environmental change. Previous assessments of island morphodynamics primarily relied on historical aerial and satellite imagery. These approaches limit analysis to two- ... ...

    Abstract Reef islands are some of the most highly sensitive landforms to the impacts of future environmental change. Previous assessments of island morphodynamics primarily relied on historical aerial and satellite imagery. These approaches limit analysis to two-dimensional parameters, with no ability to assess long-term changes to island volume or elevation. Here, we use high-resolution airborne LiDAR data to assess three-dimensional reef island features for 22 islands along the north-western coast of Australia. Our primary objective was to utilize two regional LiDAR datasets to identify characteristics indicative of island sensitivity and future vulnerability. Results show reef platform area to be an accurate predictor of island area and volume suggesting larger island volumes may reflect (1) increased carbonate production and supply from the reef platform and/or (2) enhanced shoreline protection by larger reef platforms. Locations of foredune scarping (an erosional signature) and island orientations were aligned to the regional wind and wave climate. Reef island characteristics (island area, volume, elevation, scarping, and platform area) were used to rank islands according to sensitivity, using a new Island Sensitivity Characteristics Index (ISCi) where low ISCi indicates stable islands (large areas and volumes, high elevations, and fewer scarped areas) and high ISCi indicates unstable islands (small areas and volumes, low elevations, and more scarped areas). Comparison of two LiDAR surveys from 2016 and 2018 validates the use of 3D morphometrics as important (direct) measurements of island landform change, and can complement the use of 2D parameters (e.g., area) moving forward. Results demonstrate that ongoing use of airborne LiDAR and other 3D technology for monitoring coral reef islands at regional scales will enable more accurate quantification of their sensitivity to future impacts of global environmental change.
    Keywords altitude ; area ; carbonates ; climate ; coasts ; complement ; coral reefs ; data collection ; global change ; islands ; lidar ; monitoring ; morphometry ; remote sensing ; shorelines ; supply ; surveys ; volume ; wind ; Australia
    Language English
    Dates of publication 2020-0917
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-light
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs12183033
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Reef to island sediment connections within an inshore turbid reef island system of the eastern Indian Ocean

    Bonesso, Joshua L. / Browne, Nicola K. / Murley, Matilda / Dee, Shannon / Cuttler, Michael V.W. / Paumard, Victorien / Benson, Dylan / O'Leary, Michael

    Sedimentary geology. 2022 July 01, v. 436

    2022  

    Abstract: Reef islands are low-lying sedimentary landforms formed from the accumulation of unconsolidated skeletal material generated by carbonate-producing reef organisms. The coupling between ecological (extant community assemblage) and sedimentary processes ( ... ...

    Abstract Reef islands are low-lying sedimentary landforms formed from the accumulation of unconsolidated skeletal material generated by carbonate-producing reef organisms. The coupling between ecological (extant community assemblage) and sedimentary processes (sediment composition and supply) that maintain these reef-fronted landforms make them increasingly sensitive to the impacts of future environmental change. To understand this interconnection we examine the benthic reef community assemblage and sediment characteristics (composition and texture) at Eva Island, an inshore turbid reef island system located in the Pilbara region of Western Australia. Benthic surveys and sediment composition identified molluscs as a unique primary sand-sized sediment constituent (34% of reef and sediments, respectively), alongside coral, despite low mollusc abundance in the reef ecology (n = 94 extant individuals). This result, alongside homogeneity within reef and island biosedimentary facies, suggest a coupling between source (reef) and sink (island) environments may exist, with the sediment reservoir providing suitable sand-grade material for island nourishment. In light of these findings, assuming island building can keep up with rising sea levels, Eva may be resilient to the immediate impacts of climate change. However, dependency on a few primary sediment constituents (molluscs and coral that are sensitive to environmental perturbations) may compromise long-term resilience (over decades), particularly the direct effect on sediment producing habitats and sensitive calcifying organisms under future changing climatic conditions.
    Keywords climate change ; corals ; molluscs ; texture ; Indian Ocean ; Western Australia
    Language English
    Dates of publication 2022-0701
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 216739-6
    ISSN 0037-0738
    ISSN 0037-0738
    DOI 10.1016/j.sedgeo.2022.106177
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Exposure to elevated sea-surface temperatures below the bleaching threshold impairs coral recovery and regeneration following injury.

    Bonesso, Joshua Louis / Leggat, William / Ainsworth, Tracy Danielle

    PeerJ

    2017  Volume 5, Page(s) e3719

    Abstract: Elevated sea surface temperatures (SSTs) are linked to an increase in the frequency and severity of bleaching events due to temperatures exceeding corals' upper thermal limits. The temperatures at which a breakdown of the coral- ...

    Abstract Elevated sea surface temperatures (SSTs) are linked to an increase in the frequency and severity of bleaching events due to temperatures exceeding corals' upper thermal limits. The temperatures at which a breakdown of the coral-
    Language English
    Publishing date 2017-08-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2703241-3
    ISSN 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.3719
    Database MEDical Literature Analysis and Retrieval System OnLINE

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