干旱区生态环境知识资源中心(Arid): Whitepaper: Earth

Arid

DOI	10.1016/j.gloplacha.2020.103275
	Whitepaper: Earth - Evolution at the dry limit
	Dunai, Tibor J.; Melles, Martin; Quandt, Dietmar; Knief, Claudia; Amelung, Wulf
通讯作者	Dunai, TJ
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2020
卷号	193
英文摘要	At the land surface, the availability of water controls the evolution of life as well as the morphological development. It is currently hardly known how far both evolutionary processes interact in water-limited environments. While it is well considered that biotic processes contribute to weathering and therewith also prepare the landscape for erosion, little is known to what degree different landforms form barriers and corridors of life across geological time scales. Here, we present an example of how to tackle this complex interplay of biology and landscape evolution by introducing the Collaborative Research Centre CRC 1211 'Earth - Evolution at the dry limit'. A CRC is a German Research Foundation funding program, bringing together scientists from different disciplines to tackle jointly complex emergent research questions for up to twelve years. The CRC 1211 focuses on the arid cores of the Atacama Desert and the Namib Desert. Main objective is to disentangle how the shaping of land-surfaces by past episodes of wetter climate coevolved with the evolution of life. It is hypothesized that aridity was interrupted by punctuated wetter periods, which left fingerprints in surface processes and the radiation of the biota, with climatic thresholds beyond which biota could adapt to and influence landscape development. Specific desert landscape elements such as soil surface crusts, desiccation cracks and subsoil water potentially form underexplored refugia of life at particular sites, while old channels and alluvial fan systems potentially structure its dispersal at small to intermediate scales (< 100 m(2)), In addition, there are large-scale (> 10,000 km(2)) gradients in surface processes and biodiversity, likely controlled by the intensity and duration of fog or rainfall. To substantiate these hypotheses we combine expertise from the fields of population and (phylo-) genetics, molecular biology, biogeography, ecology, soil sciences, Earth-surface sciences, geomorphology, meteorology, (paleo-) climatology, (isotope-) geochemistry and physical dating to discover and evaluate the trajectories and thresholds of the evolution and isolation of life. While presenting here our current research strategy, we invite scientists from all over the world to link their research on related questions for the joint development of a global picture on how evolution of life was triggered and regulated by land-surface processes.
英文关键词	Atacama co-evolution landscape biology climate geographic barrier isolation speciation water limitation hyper arid
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000579856400017
WOS关键词	HYPERARID ATACAMA DESERT ; CENOZOIC CLIMATE-CHANGE ; SEA-LEVEL CHANGES ; CHILEAN FORE-ARC ; NORTHERN CHILE ; ANDEAN UPLIFT ; LATE MIOCENE ; ARID SOILS ; GEOGRAPHICAL-DISTRIBUTION ; LANDSCAPE EVOLUTION
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326903
作者单位	[Dunai, Tibor J.; Melles, Martin] Univ Cologne, Inst Geol & Mineral, Zulpicher Str 49, D-50674 Cologne, Germany; [Quandt, Dietmar] Univ Bonn, Nees Inst Biodivers Plants, Meckenheimer Allee 170, D-53115 Bonn, Germany; [Knief, Claudia] Univ Bonn, Inst Crop Sci & Resource Conservat, Mol Biol Rhizosphere, Nussallee 13, D-53115 Bonn, Germany; [Amelung, Wulf] Univ Bonn, Inst Crop Sci & Resource Conservat, Soil Sci & Soil Ecol, Nussallee 13, D-53115 Bonn, Germany
推荐引用方式 GB/T 7714	Dunai, Tibor J.,Melles, Martin,Quandt, Dietmar,et al. Whitepaper: Earth - Evolution at the dry limit[J],2020,193.
APA	Dunai, Tibor J.,Melles, Martin,Quandt, Dietmar,Knief, Claudia,&Amelung, Wulf.(2020).Whitepaper: Earth - Evolution at the dry limit.GLOBAL AND PLANETARY CHANGE,193.
MLA	Dunai, Tibor J.,et al."Whitepaper: Earth - Evolution at the dry limit".GLOBAL AND PLANETARY CHANGE 193(2020).