Response of coral reefs to climate change: Expansion and demise of the southernmost Pacific coral reef

Woodroffe, Colin D., Brooke, Brendan P., Linklater, Michelle, Kennedy, David M., Jones, Brian G., Buchanan, Cameron, Mleczko, Richard, Hua, Quan and Zhao, Jian-xin (2010) Response of coral reefs to climate change: Expansion and demise of the southernmost Pacific coral reef. Geophysical Research Letters, 37 15: L15602-1-L15602-6. doi:10.1029/2010GL044067


Author Woodroffe, Colin D.
Brooke, Brendan P.
Linklater, Michelle
Kennedy, David M.
Jones, Brian G.
Buchanan, Cameron
Mleczko, Richard
Hua, Quan
Zhao, Jian-xin
Title Response of coral reefs to climate change: Expansion and demise of the southernmost Pacific coral reef
Journal name Geophysical Research Letters   Check publisher's open access policy
ISSN 0094-8276
1944-8007
Publication date 2010-08
Sub-type Article (original research)
DOI 10.1029/2010GL044067
Volume 37
Issue 15
Start page L15602-1
End page L15602-6
Total pages 6
Place of publication Washington, DC, United States
Publisher American Geophysical Union
Collection year 2011
Language eng
Abstract Coral reefs track sea level and are particularly sensitive to changes in climate. Reefs are threatened by global warming, with many experiencing increased coral bleaching. Warmer sea surface temperatures might enable reef expansion into mid latitudes. Here we report multibeam sonar and coring that reveal an extensive relict coral reef around Lord Howe Island, which is fringed by the southernmost reef in the Pacific Ocean. The relict reef, in water depths of 25-50 m, flourished in early Holocene and covered an area more than 20 times larger than the modern reef. Radiocarbon and uranium-series dating indicates that corals grew between 9000 and 7000 years ago. The reef was subsequently drowned, and backstepped to its modern limited extent. This relict reef, with localised re-establishment of corals in the past three millennia, could become a substrate for reef expansion in response to warmer temperatures, anticipated later this century and beyond, if corals are able to recolonise its surface. Copyright 2010 by the American Geophysical Union.
Keyword Lord Howe Island
Sea-level rise
Southwest Pacific
Early holocene
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # L15602

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
Centre for Microscopy and Microanalysis Publications
 
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Created: Sun, 29 Aug 2010, 00:06:16 EST