干旱区生态环境知识资源中心(Arid): Multiscale climate change impacts on plant diversity in the Atacama Desert

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DOI	10.1111/gcb.14583
	Multiscale climate change impacts on plant diversity in the Atacama Desert
	Diaz, Francisca P.1,2,3; Latorre, Claudio 4,5; Carrasco-Puga, Gabriela 1,2,3; Wood, Jamie R.6; Wilmshurst, Janet M.6,7; Soto, Daniela C.1,2,3; Cole, Theresa L.6,8; Gutierrez, Rodrigo A.1,2,3
通讯作者	Gutierrez, Rodrigo A.
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2019
卷号	25 期号:5 页码:1733-1745
英文摘要	Comprehending ecological dynamics requires not only knowledge of modern communities but also detailed reconstructions of ecosystem history. Ancient DNA (aDNA) metabarcoding allows biodiversity responses to major climatic change to be explored at different spatial and temporal scales. We extracted aDNA preserved in fossil rodent middens to reconstruct late Quaternary vegetation dynamics in the hyperarid Atacama Desert. By comparing our paleo-informed millennial record with contemporary observations of interannual variations in diversity, we show local plant communities behave differentially at different timescales. In the interannual (years to decades) time frame, only annual herbaceous expand and contract their distributional ranges (emerging from persistent seed banks) in response to precipitation, whereas perennials distribution appears to be extraordinarily resilient. In contrast, at longer timescales (thousands of years) many perennial species were displaced up to 1,000 m downslope during pluvial events. Given ongoing and future natural and anthropogenically induced climate change, our results not only provide baselines for vegetation in the Atacama Desert, but also help to inform how these and other high mountain plant communities may respond to fluctuations of climate in the future.
英文关键词	ancient DNA Atacama Desert biodiversity biogeography climate change desert plants elevational gradients fossil middens metabarcoding paleoecology
类型	Article
语种	英语
国家	Chile ; New Zealand
收录类别	SCI-E
WOS记录号	WOS:000465103600014
WOS关键词	ANCIENT DNA ; RODENT MIDDENS ; NORTHERN CHILE ; CENTRAL ANDES ; HOLOCENE ; VARIABILITY ; VEGETATION ; COMMUNITY ; CALIBRATION ; ECOSYSTEMS
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216084
作者单位	1.Pontificia Univ Catolica Chile, Dept Mol Genet & Microbiol, Santiago, Chile; 2.FONDAP Ctr Genome Regulat, Santiago, Chile; 3.Millennium Inst Integrat Biol iBio, Santiago, Chile; 4.Pontificia Univ Catolica Chile, Dept Ecol, Santiago, Chile; 5.IEB, Santiago, Chile; 6.Manaaki Whenua Landcare Res, Lincoln, New Zealand; 7.Univ Auckland, Sch Environm, Auckland, New Zealand; 8.Univ Otago, Dept Zool, Dunedin, New Zealand
推荐引用方式 GB/T 7714	Diaz, Francisca P.,Latorre, Claudio,Carrasco-Puga, Gabriela,et al. Multiscale climate change impacts on plant diversity in the Atacama Desert[J],2019,25(5):1733-1745.
APA	Diaz, Francisca P..,Latorre, Claudio.,Carrasco-Puga, Gabriela.,Wood, Jamie R..,Wilmshurst, Janet M..,...&Gutierrez, Rodrigo A..(2019).Multiscale climate change impacts on plant diversity in the Atacama Desert.GLOBAL CHANGE BIOLOGY,25(5),1733-1745.
MLA	Diaz, Francisca P.,et al."Multiscale climate change impacts on plant diversity in the Atacama Desert".GLOBAL CHANGE BIOLOGY 25.5(2019):1733-1745.