globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1920706117
论文题名:
Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity
作者: Riehl T.; Wölfl A.-C.; Augustin N.; Devey C.W.; Brandt A.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:27
起始页码: 15450
结束页码: 15459
语种: 英语
英文关键词: Geobiodiversity ; Habitat mapping ; Hydroacoustics ; Polymetallic nodules ; Remote sensing
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163442
Appears in Collections:气候变化与战略

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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

Recommended Citation:
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]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(27)
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