Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem

Abstract Groundwaters host vital resources playing a key role in the near future. Subterranean fauna and microbes are crucial in regulating organic cycles in environments characterized by low energy and scarce carbon availability. However, our knowledge about the functioning of groundwater ecosystem...

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Autores principales:	Mattia Saccò, Alison J. Blyth, William F. Humphreys, Steven J. B. Cooper, Nicole E. White, Matthew Campbell, Mahsa Mousavi-Derazmahalleh, Quan Hua, Debashish Mazumder, Colin Smith, Christian Griebler, Kliti Grice
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2b781058c8ca481399ff792e6e9e1b90
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spelling	oai:doaj.org-article:2b781058c8ca481399ff792e6e9e1b902021-12-02T12:09:25ZRainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem10.1038/s41598-021-83286-x2045-2322https://doaj.org/article/2b781058c8ca481399ff792e6e9e1b902021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83286-xhttps://doaj.org/toc/2045-2322Abstract Groundwaters host vital resources playing a key role in the near future. Subterranean fauna and microbes are crucial in regulating organic cycles in environments characterized by low energy and scarce carbon availability. However, our knowledge about the functioning of groundwater ecosystems is limited, despite being increasingly exposed to anthropic impacts and climate change-related processes. In this work we apply novel biochemical and genetic techniques to investigate the ecological dynamics of an Australian calcrete under two contrasting rainfall periods (LR—low rainfall and HR—high rainfall). Our results indicate that the microbial gut community of copepods and amphipods experienced a shift in taxonomic diversity and predicted organic functional metabolic pathways during HR. The HR regime triggered a cascade effect driven by microbes (OM processors) and exploited by copepods and amphipods (primary and secondary consumers), which was finally transferred to the aquatic beetles (top predators). Our findings highlight that rainfall triggers ecological shifts towards more deterministic dynamics, revealing a complex web of interactions in seemingly simple environmental settings. Here we show how a combined isotopic-molecular approach can untangle the mechanisms shaping a calcrete community. This design will help manage and preserve one of the most vital but underrated ecosystems worldwide.Mattia SaccòAlison J. BlythWilliam F. HumphreysSteven J. B. CooperNicole E. WhiteMatthew CampbellMahsa Mousavi-DerazmahallehQuan HuaDebashish MazumderColin SmithChristian GrieblerKliti GriceNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mattia Saccò Alison J. Blyth William F. Humphreys Steven J. B. Cooper Nicole E. White Matthew Campbell Mahsa Mousavi-Derazmahalleh Quan Hua Debashish Mazumder Colin Smith Christian Griebler Kliti Grice Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem
description	Abstract Groundwaters host vital resources playing a key role in the near future. Subterranean fauna and microbes are crucial in regulating organic cycles in environments characterized by low energy and scarce carbon availability. However, our knowledge about the functioning of groundwater ecosystems is limited, despite being increasingly exposed to anthropic impacts and climate change-related processes. In this work we apply novel biochemical and genetic techniques to investigate the ecological dynamics of an Australian calcrete under two contrasting rainfall periods (LR—low rainfall and HR—high rainfall). Our results indicate that the microbial gut community of copepods and amphipods experienced a shift in taxonomic diversity and predicted organic functional metabolic pathways during HR. The HR regime triggered a cascade effect driven by microbes (OM processors) and exploited by copepods and amphipods (primary and secondary consumers), which was finally transferred to the aquatic beetles (top predators). Our findings highlight that rainfall triggers ecological shifts towards more deterministic dynamics, revealing a complex web of interactions in seemingly simple environmental settings. Here we show how a combined isotopic-molecular approach can untangle the mechanisms shaping a calcrete community. This design will help manage and preserve one of the most vital but underrated ecosystems worldwide.
format	article
author	Mattia Saccò Alison J. Blyth William F. Humphreys Steven J. B. Cooper Nicole E. White Matthew Campbell Mahsa Mousavi-Derazmahalleh Quan Hua Debashish Mazumder Colin Smith Christian Griebler Kliti Grice
author_facet	Mattia Saccò Alison J. Blyth William F. Humphreys Steven J. B. Cooper Nicole E. White Matthew Campbell Mahsa Mousavi-Derazmahalleh Quan Hua Debashish Mazumder Colin Smith Christian Griebler Kliti Grice
author_sort	Mattia Saccò
title	Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem
title_short	Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem
title_full	Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem
title_fullStr	Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem
title_full_unstemmed	Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem
title_sort	rainfall as a trigger of ecological cascade effects in an australian groundwater ecosystem
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2b781058c8ca481399ff792e6e9e1b90
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Rainfall as a trigger of ecological cascade effects in an Australian groundwater ecosystem

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