DOI: 10.1111/gcb.12571
论文题名: Thermally tolerant corals have limited capacity to acclimatize to future warming
作者: Rodolfo-Metalpa R. ; Hoogenboom M.O. ; Rottier C. ; Ramos-Esplá A. ; Baker A.C. ; Fine M. ; Ferrier-Pagès C.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 10 起始页码: 3036
结束页码: 3049
语种: 英语
英文关键词: Climate change
; Coral bleaching
; Ecological energetics
; Invasive species
; Mediterranean sea
; Physiological plasticity
; Thermal adaptation
Scopus关键词: acclimation
; bioenergetics
; coral
; density
; global warming
; invasive species
; latitudinal gradient
; photosynthesis
; physiological response
; symbiont
; temperature tolerance
; Mediterranean Sea
; Anthozoa
; acclimatization
; adverse effects
; animal
; Anthozoa
; dinoflagellate
; genetics
; greenhouse effect
; heat
; introduced species
; Mediterranean Sea
; photosynthesis
; physiology
; symbiosis
; Acclimatization
; Animals
; Anthozoa
; Dinoflagellida
; Global Warming
; Hot Temperature
; Introduced Species
; Mediterranean Sea
; Photosynthesis
; Symbiosis
英文摘要: Thermal stress affects organism performance differently depending on the ambient temperature to which they are acclimatized, which varies along latitudinal gradients. This study investigated whether differences in physiological responses to temperature are consistent with regional differences in temperature regimes for the stony coral Oculina patagonica. To resolve this question, we experimentally assessed how colonies originating from four different locations characterized by >3°C variation in mean maximum annual temperature responded to warming from 20 to 32 °C. We assessed plasticity in symbiont identity, density, and photosynthetic properties, together with changes in host tissue biomass. Results show that, without changes in the type of symbiont hosted by coral colonies, O. patagonica has limited capacity to acclimatize to future warming. We found little evidence of variation in overall thermal tolerance, or in thermal optima, in response to spatial variation in ambient temperature. Given that the invader O. patagonica is a relatively new member of the Mediterranean coral fauna, our results also suggest that coral populations may need to remain isolated for a long period of time for thermal adaptation to potentially take place. Our study indicates that for O. patagonica, mortality associated with thermal stress manifests primarily through tissue breakdown under moderate but prolonged warming (which does not impair symbiont photosynthesis and, therefore, does not lead to bleaching). Consequently, projected global warming is likely to cause repeat incidents of partial and whole colony mortality and might drive a gradual range contraction of Mediterranean corals. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62109
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre Scientifique de Monaco, Musée Océanographique, 1 avenue, Saint Martin, Monaco; Centro de Investigación Marina (CIMAR), Universidad de Alicante-Ayuntamiento de Santa Pola, Alicante, Spain; Division of Marine Biology and Fisheries, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Cswy, Miami, FL, United States; The Mina and Everard Goodman Faculty of Life Sciences, The Interuniversity Institute for Marine Science, Bar-Ilan University, Eilat, Israel; Institut de Recherche pour le Développement, Unite 227 CoReus 2, Noumea, New Caledonia; School of Marine and Tropical Biology, James Cook University, Townsville, QLD, Australia
Recommended Citation:
Rodolfo-Metalpa R.,Hoogenboom M.O.,Rottier C.,et al. Thermally tolerant corals have limited capacity to acclimatize to future warming[J]. Global Change Biology,2014-01-01,20(10)