气候变化领域集成服务门户(CCPortal): Coral mass mortalities in the Chagos Archipelago over 40 years: Regional species and assemblage extinctions and indications of positive feedbacks

CCPortal

DOI	10.1016/j.marpolbul.2020.111075
	Coral mass mortalities in the Chagos Archipelago over 40 years: Regional species and assemblage extinctions and indications of positive feedbacks
	Sheppard C.; Sheppard A.; Fenner D.
发表日期	2020
ISSN	0025326X
卷号	154
英文摘要	The global decline of reef corals has been driven largely by several marine heatwaves. This has greatly reduced coral cover but has reduced coral diversity also. While there is a lack of data in most locations to detect coral species losses, reefs of the Chagos Archipelago, central Indian Ocean, have long term monitoring data extending back to the late 1970s. Severe declines in cover have occurred since the 1970s, with regional extinctions of some species and key species assemblages. There is a severe decline in coral settlement, along with a substantial loss of habitat quality which has reduced the habitat available for settlement. This is a clear precursor to positive feedback. Regional species extinctions here occur mainly when total coral cover is <10% of pre-warming levels. Climate models predict more frequent and more severe marine heatwaves, and even if this ecosystem recovers it will contain fewer species. © 2020
英文关键词	Chagos Archipelago; Coral decline; Species extinctions; Warming
语种	英语
scopus关键词	Ecosystems; Reefs; Coral settlements; Habitat quality; Indian ocean; Long-term monitoring datum; Reef corals; Severe marines; Species assemblage; Species extinction; Climate models; extinction risk; feedback mechanism; heat wave; mass mortality; species diversity; species richness; article; climate; coral; habitat quality; heat wave; human; Indian Ocean; mortality; positive feedback; species extinction; warming; animal; Anthozoa; coral reef; ecosystem; British Indian Ocean Territory; Chagos Archipelago; Anthozoa; Animals; Anthozoa; Climate; Coral Reefs; Ecosystem; Indian Ocean
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149010
作者单位	School of Life Sciences, University of WarwickCV4 7AL, United Kingdom; School of Ocean Sciences, Bangor UniversityLL57 2DG, United Kingdom; NOAA Contractor and Consultant, Pago Pago, AS 96799, United States
推荐引用方式 GB/T 7714	Sheppard C.,Sheppard A.,Fenner D.. Coral mass mortalities in the Chagos Archipelago over 40 years: Regional species and assemblage extinctions and indications of positive feedbacks[J],2020,154.
APA	Sheppard C.,Sheppard A.,&Fenner D..(2020).Coral mass mortalities in the Chagos Archipelago over 40 years: Regional species and assemblage extinctions and indications of positive feedbacks.Marine Pollution Bulletin,154.
MLA	Sheppard C.,et al."Coral mass mortalities in the Chagos Archipelago over 40 years: Regional species and assemblage extinctions and indications of positive feedbacks".Marine Pollution Bulletin 154(2020).