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Article: Effects of cyclone-generated disturbance on a tropical reef foraminifera assemblage

TitleEffects of cyclone-generated disturbance on a tropical reef foraminifera assemblage
Authors
Issue Date2016
PublisherNature Publishing Group: Open Access Journals. The Journal's web site is located at http://www.nature.com/srep/index.html
Citation
Scientific Reports, 2016, v. 6, p. article no. 24846 How to Cite?
AbstractThe sedimentary record, and associated micropalaeontological proxies, is one tool that has been employed to quantify a region’s tropical cyclone history. Doing so has largely relied on the identification of allochthonous deposits (sediments and microfossils), sourced from deeper water and entrained by tropical cyclone waves and currents, in a shallow-water or terrestrial setting. In this study, we examine microfossil assemblages before and after a known tropical cyclone event (Cyclone Hamish) with the aim to better resolve the characteristics of this known signal. Our results identify no allochthonous material associated with Cyclone Hamish. Instead, using a swathe of statistical tools typical of ecological studies but rarely employed in the geosciences, we identify new, previously unidentified, signal types. These signals include a homogenising effect, with the level of differentiation between sample sites greatly reduced immediately following Cyclone Hamish, and discernible shifts in assemblage diversity. In the subsequent years following Hamish, the surface assemblage returns to its pre-cyclone form, but results imply that it is unlikely the community ever reaches steady state.
Persistent Identifierhttp://hdl.handle.net/10722/230262
ISSN
2015 Impact Factor: 5.228
2015 SCImago Journal Rankings: 2.073

 

DC FieldValueLanguage
dc.contributor.authorStrotz, LC-
dc.contributor.authorMamo, BL-
dc.contributor.authorDominey-Howes, D-
dc.date.accessioned2016-08-23T14:16:02Z-
dc.date.available2016-08-23T14:16:02Z-
dc.date.issued2016-
dc.identifier.citationScientific Reports, 2016, v. 6, p. article no. 24846-
dc.identifier.issn2045-2322-
dc.identifier.urihttp://hdl.handle.net/10722/230262-
dc.description.abstractThe sedimentary record, and associated micropalaeontological proxies, is one tool that has been employed to quantify a region’s tropical cyclone history. Doing so has largely relied on the identification of allochthonous deposits (sediments and microfossils), sourced from deeper water and entrained by tropical cyclone waves and currents, in a shallow-water or terrestrial setting. In this study, we examine microfossil assemblages before and after a known tropical cyclone event (Cyclone Hamish) with the aim to better resolve the characteristics of this known signal. Our results identify no allochthonous material associated with Cyclone Hamish. Instead, using a swathe of statistical tools typical of ecological studies but rarely employed in the geosciences, we identify new, previously unidentified, signal types. These signals include a homogenising effect, with the level of differentiation between sample sites greatly reduced immediately following Cyclone Hamish, and discernible shifts in assemblage diversity. In the subsequent years following Hamish, the surface assemblage returns to its pre-cyclone form, but results imply that it is unlikely the community ever reaches steady state.-
dc.languageeng-
dc.publisherNature Publishing Group: Open Access Journals. The Journal's web site is located at http://www.nature.com/srep/index.html-
dc.relation.ispartofScientific Reports-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleEffects of cyclone-generated disturbance on a tropical reef foraminifera assemblage-
dc.typeArticle-
dc.identifier.emailMamo, BL: blmamo@hku.hk-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/srep24846-
dc.identifier.hkuros260311-
dc.identifier.volume6-
dc.identifier.spagearticle no. 24846-
dc.identifier.epagearticle no. 24846-
dc.publisher.placeUnited Kingdom-

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