Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14545 |
Role of host genetics and heat-tolerant algal symbionts in sustaining populations of the endangered coral Orbicella faveolata in the Florida Keys with ocean warming | |
Manzello, Derek P.1; Matz, Mikhail, V2; Enochs, Ian C.1; Valentino, Lauren1,3; Carlton, Renee D.4; Kolodziej, Graham1,3; Serrano, Xaymara1,3; Towle, Erica K.5; Jankulak, Mike1,3 | |
2019-03-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:3页码:1016-1031 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Identifying which factors lead to coral bleaching resistance is a priority given the global decline of coral reefs with ocean warming. During the second year of back-to-back bleaching events in the Florida Keys in 2014 and 2015, we characterized key environmental and biological factors associated with bleaching resilience in the threatened reef-building coral Orbicella faveolata. Ten reefs (five inshore, five offshore, 179 corals total) were sampled during bleaching (September 2015) and recovery (May 2016). Corals were genotyped with 2bRAD and profiled for algal symbiont abundance and type. O. faveolata at the inshore sites, despite higher temperatures, demonstrated significantly higher bleaching resistance and better recovery compared to offshore. The thermotolerant Durusdinium trenchii (formerly Symbiondinium trenchii) was the dominant endosymbiont type region-wide during initial (78.0% of corals sampled) and final (77.2%) sampling; >90% of the nonbleached corals were dominated by D. trenchii. 2bRAD host genotyping found no genetic structure among reefs, but inshore sites showed a high level of clonality. While none of the measured environmental parameters were correlated with bleaching, 71% of variation in bleaching resistance and 73% of variation in the proportion of D. trenchii was attributable to differences between genets, highlighting the leading role of genetics in shaping natural bleaching patterns. Notably, D. trenchii was rarely dominant in O. faveolata from the Florida Keys in previous studies, even during bleaching. The region-wide high abundance of D. trenchii was likely driven by repeated bleaching associated with the two warmest years on record for the Florida Keys (2014 and 2015). On inshore reefs in the Upper Florida Keys, O. faveolata was most abundant, had the highest bleaching resistance, and contained the most corals dominated by D. trenchii, illustrating a causal link between heat tolerance and ecosystem resilience with global change. |
英文关键词 | 2bRAD climate change coral host genotype Durusdinium trenchii qPCR Symbiodinium |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000459456700020 |
WOS关键词 | THERMAL TOLERANCE ; CLIMATE-CHANGE ; SCLERACTINIAN CORALS ; PORITES-ASTREOIDES ; CLONAL STRUCTURE ; SHELF TRENDS ; REEF CORALS ; COMMUNITY ; PATTERNS ; ENDOSYMBIONTS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/16561 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA; 2.Univ Texas Austin, Dept Integrat Biol, Austin, TX 78712 USA; 3.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Cooperat Inst Marine & Atmospher Studies, 4600 Rickenbacker Causeway, Miami, FL 33149 USA; 4.Khaled bin Sultan Living Oceans Fdn, Landover, MD USA; 5.Off NOAA Administrator, Silver Spring, MD USA |
推荐引用方式 GB/T 7714 | Manzello, Derek P.,Matz, Mikhail, V,Enochs, Ian C.,et al. Role of host genetics and heat-tolerant algal symbionts in sustaining populations of the endangered coral Orbicella faveolata in the Florida Keys with ocean warming[J]. GLOBAL CHANGE BIOLOGY,2019,25(3):1016-1031. |
APA | Manzello, Derek P..,Matz, Mikhail, V.,Enochs, Ian C..,Valentino, Lauren.,Carlton, Renee D..,...&Jankulak, Mike.(2019).Role of host genetics and heat-tolerant algal symbionts in sustaining populations of the endangered coral Orbicella faveolata in the Florida Keys with ocean warming.GLOBAL CHANGE BIOLOGY,25(3),1016-1031. |
MLA | Manzello, Derek P.,et al."Role of host genetics and heat-tolerant algal symbionts in sustaining populations of the endangered coral Orbicella faveolata in the Florida Keys with ocean warming".GLOBAL CHANGE BIOLOGY 25.3(2019):1016-1031. |
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