Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13968 |
Extremely low genetic diversity across mangrove taxa reflects past sea level changes and hints at poor future responses | |
Guo, Zixiao1; Li, Xinnian1; He, Ziwen1; Yang, Yuchen1; Wang, Wenqing2; Zhong, Cairong3; Greenberg, Anthony J.4; Wu, Chung-I1; Duke, Norman C.5; Shi, Suhua1 | |
2018-04-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:4页码:1741-1748 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Australia |
英文摘要 | The projected increases in sea levels are expected to affect coastal ecosystems. Tropical communities, anchored by mangrove trees and having experienced frequent past sea level changes, appear to be vibrant at present. However, any optimism about the resilience of these ecosystems is premature because the impact of past climate events may not be reflected in the current abundance. To assess the impact of historical sea level changes, we conducted an extensive genetic diversity survey on the Indo-Malayan coast, a hotspot with a large global mangrove distribution. A survey of 26 populations in six species reveals extremely low genome-wide nucleotide diversity and hence very small effective population sizes (N-e) in all populations. Whole-genome sequencing of three mangrove species further shows the decline in N-e to be strongly associated with the speed of past changes in sea level. We also used a recent series of flooding events in Yalong Bay, southern China, to test the robustness of mangroves to sea level changes in relation to their genetic diversity. The events resulted in the death of half of the mangrove trees in this area. Significantly, less genetically diverse mangrove species suffered much greater destruction. The dieback was accompanied by a drastic reduction in local invertebrate biodiversity. We thus predict that tropical coastal communities will be seriously endangered as the global sea level rises. Well-planned coastal development near mangrove forests will be essential to avert this crisis. |
英文关键词 | dieback effective population size genetic diversity human disturbance mangroves sea level rise |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426504400024 |
WOS关键词 | FORESTS ; ELEVATION ; HISTORY ; ADJUST ; REGION ; RISE |
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/17177 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Sun Yat Sen Univ, State Key Lab Biocontrol, Key Lab Biodivers Dynam & Conservat, Guangdong Higher Educ Inst,Sch Life Sci,Guangdong, Guangzhou, Guangdong, Peoples R China; 2.Xiamen Univ, Key Lab, Minist Educ Coastal & Wetland Ecosyst, Coll Environm & Ecol, Xiamen, Fujian, Peoples R China; 3.Hainan Dongzhai Harbor Natl Nat Reserve, Haikou, Hainan, Peoples R China; 4.Bayes Res, Ithaca, NY USA; 5.James Cook Univ, Trop WATER, Townsville, Qld, Australia |
推荐引用方式 GB/T 7714 | Guo, Zixiao,Li, Xinnian,He, Ziwen,et al. Extremely low genetic diversity across mangrove taxa reflects past sea level changes and hints at poor future responses[J]. GLOBAL CHANGE BIOLOGY,2018,24(4):1741-1748. |
APA | Guo, Zixiao.,Li, Xinnian.,He, Ziwen.,Yang, Yuchen.,Wang, Wenqing.,...&Shi, Suhua.(2018).Extremely low genetic diversity across mangrove taxa reflects past sea level changes and hints at poor future responses.GLOBAL CHANGE BIOLOGY,24(4),1741-1748. |
MLA | Guo, Zixiao,et al."Extremely low genetic diversity across mangrove taxa reflects past sea level changes and hints at poor future responses".GLOBAL CHANGE BIOLOGY 24.4(2018):1741-1748. |
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