Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1705351114 |
U-Th dating reveals regional-scale decline of branching Acropora corals on the Great Barrier Reef over the past century | |
Clark, Tara R.1,2; Roff, George3,4; Zhao, Jian-xin1; Feng, Yue-xing1; Done, Terence J.5; McCook, Laurence J.6,7; Pandolfi, John M.3,4 | |
2017-09-26 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:39页码:10350-10355 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; Peoples R China |
英文摘要 | Hard coral cover on the Great Barrier Reef (GBR) is on a trajectory of decline. However, little is known about past coral mortality before the advent of long-term monitoring (circa 1980s). Using paleoecological analysis and high-precision uranium-thorium (U-Th) dating, we reveal an extensive loss of branching Acropora corals and changes in coral community structure in the Palm Islands region of the central GBR over the past century. In 2008, dead coral assemblages were dominated by large, branching Acropora and living coral assemblages by genera typically found in turbid inshore environments. The timing of Acropora mortality was found to be occasionally synchronous among reefs and frequently linked to discrete disturbance events, occurring in the 1920s to 1960s and again in the 1980s to 1990s. Surveys conducted in 2014 revealed low Acropora cover (<5%) across all sites, with very little evidence of change for up to 60 y at some sites. Collectively, our results suggest a loss of resilience of this formerly dominant key framework builder at a regional scale, with recovery severely lagging behind predictions. Our study implies that the management of these reefs may be predicated on a shifted baseline. |
英文关键词 | U-Th dating Acropora coral mortality Great Barrier Reef |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411704000037 |
WOS关键词 | CLIMATE-CHANGE ; SCLERACTINIAN CORALS ; DEATH ASSEMBLAGES ; MORTALITY EVENTS ; MODERN PORITES ; REGIME SHIFTS ; PHASE-SHIFTS ; BASE-LINES ; RESILIENCE ; RECOVERY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204789 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Queensland, Sch Earth & Environm Sci, Radiogen Isotope Facil, Brisbane, Qld 4072, Australia; 2.Griffith Univ, Environm Futures Inst, Res Ctr Human Evolut, Nathan, Qld 4111, Australia; 3.Univ Queensland, Sch Biol Sci, Brisbane, Qld 4072, Australia; 4.Univ Queensland, Australian Res Council Ctr Excellence Coral Reef, Brisbane, Qld 4072, Australia; 5.Australian Inst Marine Sci, Townsville, Qld 4810, Australia; 6.James Cook Univ, Australian Res Council Ctr Excellence Coral Reef, Townsville, Qld 4811, Australia; 7.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Clark, Tara R.,Roff, George,Zhao, Jian-xin,et al. U-Th dating reveals regional-scale decline of branching Acropora corals on the Great Barrier Reef over the past century[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(39):10350-10355. |
APA | Clark, Tara R..,Roff, George.,Zhao, Jian-xin.,Feng, Yue-xing.,Done, Terence J..,...&Pandolfi, John M..(2017).U-Th dating reveals regional-scale decline of branching Acropora corals on the Great Barrier Reef over the past century.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(39),10350-10355. |
MLA | Clark, Tara R.,et al."U-Th dating reveals regional-scale decline of branching Acropora corals on the Great Barrier Reef over the past century".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.39(2017):10350-10355. |
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