Spatial distribution and interannual variability of coastal fog and low clouds cover in the hyperarid Atacama Desert and implications for past and present Tillandsia landbeckii ecosystems

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Title:Main Title: Spatial distribution and interannual variability of coastal fog and low clouds cover in the hyperarid Atacama Desert and implications for past and present Tillandsia landbeckii ecosystems
Description:Abstract: The hyperarid Atacama Desert coast receives scarce moisture inputs mainly from the Pacific Ocean in the form of marine advective fog. The collected moisture supports highly specialized ecosystems, where the bromeliad Tillandsia landbeckii is the dominant species. The fog and low clouds (FLCs) on which these ecosystems depend are affected in their interannual variability and spatial distribution by global phenomena, such as ENSO. Yet, there is a lack of understanding of how ENSO influences recent FLCs spatial changes and their interconnections and how these variations can affect existing Tillandsia stands. In this study, we analyze FLCs occurrence, its trends and the influence of ENSO on the interannual variations of FLCs presence by processing GOES satellite images (1995–2017). Our results show that ENSO exerts a significant influence over FLCs interannual variability in the Atacama at ~ 20°S. Linear regression analyses reveal a relation between ENSO3.4 anomalies and FLCs with opposite seasonal effects depending on the ENSO phase. During summer (winter), the ENSO warm phase is associated with an increase (decrease) of the FLCs occurrence, whereas the opposite occurs during ENSO cool phases. In addition, the ONI Index explains up to ~ 50 and ~ 60% variance of the interannual FLCs presence in the T. landbeckii site during summer and winter, respectively. Finally, weak negative (positive) trends of FLCs presence are observed above (below) 1000 m a. s. l. These results have direct implications for understanding the present and past distribution of Tillandsia ecosystems under the extreme conditions characterizing our study area.
Identifier:10.1007/s00606-021-01782-z (DOI)
Citation Advice:del Río, C., Lobos-Roco, F., Latorre, C. et al. Spatial distribution and interannual variability of coastal fog and low clouds cover in the hyperarid Atacama Desert and implications for past and present Tillandsia landbeckii ecosystems. Plant Syst Evol 307, 58 (2021). https://doi.org/10.1007/s00606-021-01782-z
Responsible Party
Creators:Camilo del Río (Author), Felipe Lobos-Roco (Author), Claudio Latorre (Author), Marcus Koch (Author), Juan-Luis García (Author), Pablo Osses (Author), Fabrice Lambert (Author), Fernando Alfaro (Author), Alexander Siegmund (Author)
Publisher:Springer
Publication Year:2021
Topic
CRC1211 Topic:Biology
Related Subproject:B1
Subject:Keyword: Ecology of Plants
Geogr. Information Topic:Environment
File Details
Filename:del_Rio_et_al_2021.pdf
Data Type:Text - Publication
File Size:7.2 MB
Date:Accepted: 08.08.2021
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Free
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Licence:None
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Specific Information - Publication
Publication Status:Published
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:Plant Systematics and Evolution
Source Website:https://www.springer.com/journal/606
Issue:58
Volume:307
Number of Pages:23 (1 - 23)
Metadata Details
Metadata Creator:Johanna Möbus
Metadata Created:24.01.2023
Metadata Last Updated:26.01.2023
Subproject:B1
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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