Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1920706117 |
Discovery of widely available abyssal rock patches reveals overlooked habitat type and prompts rethinking deep-sea biodiversity | |
Torben Riehl; Anne-Cathrin Wölfl; Nico Augustin; Colin W. Devey; Angelika Brandt | |
2020-06-18 | |
发表期刊 | Proceedings of the National Academy of Sciences
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出版年 | 2020 |
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 km2 of 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. |
领域 | 资源环境 |
URL | 查看原文 |
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/276659 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Torben Riehl,Anne-Cathrin Wölfl,Nico Augustin,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,2020. |
APA | Torben Riehl,Anne-Cathrin Wölfl,Nico Augustin,Colin W. Devey,&Angelika Brandt.(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. |
MLA | Torben Riehl,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 (2020). |
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