DOI: 10.1111/gcb.12027
论文题名: Can a thermally tolerant symbiont improve the future of Caribbean coral reefs?
作者: Ortiz J.C. ; González-Rivero M. ; Mumby P.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 1 起始页码: 273
结束页码: 281
语种: 英语
英文关键词: Climate change
; Coral reefs
; Symbiosis
; Thermal tolerance
Scopus关键词: abundance
; climate change
; climate effect
; coral reef
; endosymbiont
; growth rate
; marine ecosystem
; symbiosis
; adaptation
; animal
; article
; Central America
; climate change
; coral reef
; symbiosis
; temperature
; Adaptation, Physiological
; Animals
; Caribbean Region
; Climate Change
; Coral Reefs
; Symbiosis
; Temperature
; Atlantic Ocean
; Caribbean Sea
; Anthozoa
英文摘要: The detrimental effect of climate change induced bleaching on Caribbean coral reefs has been widely documented in recent decades. Several studies have suggested that increases in the abundance of thermally tolerant endosymbionts may ameliorate the effect of climate change on reefs. Symbionts that confer tolerance to temperature also reduce the growth rate of their coral host. Here, we show, using a spatial ecosystem model, that an increment in the abundance of a thermally tolerant endosymbiont (D1a) is unlikely to ensure the persistence of Caribbean reefs, or to reduce their rate of decline, due to the concomitant reduction in growth rate under current thermal stress predictive scenarios. Furthermore, our results suggest that given the documented vital rates of D1a-dominated corals, increasing dominance of D1a in coral hosts may have a detrimental effect by reducing the resilience of Caribbean reefs, and preventing their long-term recovery. This is because Caribbean ecosystems appear to be highly sensitive to changes in the somatic growth rate of corals. Alternative outcomes might be expected in systems with different community-level dynamics such as reefs in the Indo-Pacific, where the ecological costs of reduced growth rate might be far smaller. © 2012 Blackwell Publishing Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62574
Appears in Collections: 影响、适应和脆弱性
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作者单位: Marine Spatial Ecology Lab., School of Biological Sciences, University of Queensland, St Lucia, Qld 4072, Australia; ARC Centre of Excellence for Coral reefs Studies, School of Biological Sciences, University of Queensland, St Lucia, Qld 4072, Australia; Coral reefs Ecosystems Lab., School of Biological Sciences, University of Queensland, St Lucia, Qld 4072, Australia
Recommended Citation:
Ortiz J.C.,González-Rivero M.,Mumby P.J.. Can a thermally tolerant symbiont improve the future of Caribbean coral reefs?[J]. Global Change Biology,2013-01-01,19(1)