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DOI	10.1073/pnas.1920706117
	Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity
	Riehl T.; Wölfl A.-C.; Augustin N.; Devey C.W.; Brandt A.
发表日期	2020
ISSN	0027-8424
起始页码	15450
结束页码	15459
卷号	117 期号:27
英文摘要	Habitat heterogeneity and species diversity are often linked. On the deep seafloor, sediment variability and hard-substrate availability influence geographic patterns of species richness and turnover. The assumption of a generally homogeneous, sedimented abyssal seafloor is at odds with the fact that the faunal diversity in some abyssal regions exceeds that of shallow-water environments. Here we show, using a ground-truthed analysis of multibeam sonar data, that the deep seafloor may be much rockier than previously assumed. A combination of bathymetry data, ruggedness, and backscatter from a trans-Atlantic corridor along the Vema Fracture Zone, covering crustal ages from 0 to 100 Ma, show rock exposures occurring at all crustal ages. Extrapolating to the whole Atlantic, over 260,000 km2of rock habitats potentially occur along Atlantic fracture zones alone, significantly increasing our knowledge about abyssal habitat heterogeneity. This implies that sampling campaigns need to be considerably more sophisticated than at present to capture the full deep-sea habitat heterogeneity and biodiversity. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Geobiodiversity; Habitat mapping; Hydroacoustics; Polymetallic nodules; Remote sensing
语种	英语
scopus关键词	abyssal species; Article; Atlantic Ocean; biodiversity; deep sea; marine environment; priority journal; sediment; species distribution; species diversity; species habitat; species richness; surface area; acoustics; animal; aquatic species; ecosystem monitoring; ecosystem restoration; evolution; physiology; procedures; remote sensing; Acoustics; Animals; Aquatic Organisms; Atlantic Ocean; Biodiversity; Biological Evolution; Ecological Parameter Monitoring; Environmental Restoration and Remediation; Remote Sensing Technology
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160267
作者单位	Riehl, T., Department of Marine Zoology, Section Crustacea, Senckenberg Research Institute, Frankfurt, 60325, Germany, Institute for Ecology, Diversity and Evolution, Goethe University Frankfurt, Frankfurt am Main, 60439, Germany; Wölfl, A.-C., Research group Dynamics of the Ocean Floor, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, 24148, Germany; Augustin, N., Research group Dynamics of the Ocean Floor, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, 24148, Germany; Devey, C.W., Research group Dynamics of the Ocean Floor, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, 24148, Germany; Brandt, A., Department of Marine Zoology, Section Crustacea, Senckenberg Research Institute, Frankfurt, 60325, Germany, Institute for Ecology, Diversity and Evolution, Goethe University Frankfurt, Frankfurt am Main, 60439, Germany
推荐引用方式 GB/T 7714	Riehl T.,Wölfl A.-C.,Augustin N.,et al. Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity[J],2020,117(27).
APA	Riehl T.,Wölfl A.-C.,Augustin N.,Devey C.W.,&Brandt A..(2020).Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity.Proceedings of the National Academy of Sciences of the United States of America,117(27).
MLA	Riehl T.,et al."Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity".Proceedings of the National Academy of Sciences of the United States of America 117.27(2020).