Stygofaunal community trends along varied rainfall conditions: deciphering ecological niche dynamics of a shallow calcrete in Western Australia

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dc.contributor.authorSaccò, Men_AU
dc.contributor.authorBlyth, AJen_AU
dc.contributor.authorHumphreys, WFen_AU
dc.contributor.authorKarasiewicz, Sen_AU
dc.contributor.authorMeredith, KTen_AU
dc.contributor.authorLaini, Aen_AU
dc.contributor.authorCooper, SJBen_AU
dc.contributor.authorBateman, PWen_AU
dc.contributor.authorGrice, Ken_AU
dc.date.accessioned2023-01-13T02:37:47Zen_AU
dc.date.available2023-01-13T02:37:47Zen_AU
dc.date.issued2019-09-16en_AU
dc.date.statistics2022-11-14en_AU
dc.description.abstractGroundwaters host highly adapted fauna, known as stygofauna, which play a key role in maintaining the functional integrity of subterranean ecosystems. Stygofaunal niche studies provide insights into the ecological dynamics shaping the delicate balance between the hydrological conditions and community diversity patterns. This work aims to unravel the ecological trends of a calcrete stygofaunal community, with special focus on niche dynamics through the Outlying Mean Index analysis (OMI) and additional calculation of Within Outlying Mean Indexes (WitOMI), under three rainfall regimes. Temperature and pH changed significantly among different rainfall conditions (P < .001), and together with salinity were the most influential drivers in shaping stygofaunal assemblages. These environmental conditions, linked with nutrient fluctuations in the groundwater, constrained changes in niche occupation for water mites, two species of beetles and juvenile amphipods (OMI analysis, P < .05). The WitOMI analysis revealed differential subniche breadths linked with taxa-specific adaptations after different rainfall conditions. Our results indicate that stygofaunal niches are closely linked to the hydrodynamic conditions influenced by different rainfall regimes. Further long-term investigations, incorporating broader ecological perspectives, will help to understand the impacts associated with climate change and anthropogenic pressures on one of the most threatened ecosystems in the world. © 2019 John Wiley & Sons, Ltd.en_AU
dc.description.sponsorshipAINSE Postgraduate Scholarship (PGRA); Australian Research Council linkage grants. Grant Number: LP140100555; Curtin International Postgraduate research Scholarship (CIPRS); AINSE Fellowship; Curtin International Postgraduate Research Scholarship; Department of Biodiversity, Conservation and Attractions Bennelongia and Biota Environmental Consultants; Rio Tinto; South Australian Museum; Western Australian Museum; Australian Research Councilen_AU
dc.identifier.articlenumbere2150en_AU
dc.identifier.citationSaccò, M., Blyth, A. J., Humphreys, W. F., Karasiewicz, S., Meredith, K. T., Laini, A., Cooper, S. J. B., Bateman, P. W. & Grice, K. (2020). Stygofaunal community trends along varied rainfall conditions: deciphering ecological niche dynamics of a shallow calcrete in Western Australia. Ecohydrology, 13(1), e2150. doi:10.1002/eco.2150en_AU
dc.identifier.issn1936-0592en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleEcohydrologyen_AU
dc.identifier.urihttps://doi.org/10.1002/eco.2150en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14351en_AU
dc.identifier.volume13en_AU
dc.language.isoenen_AU
dc.publisherJohn Wiley & Sons, Incen_AU
dc.subjectRainen_AU
dc.subjectEcologyen_AU
dc.subjectDynamicsen_AU
dc.subjectCalcretesen_AU
dc.subjectWestern Australiaen_AU
dc.subjectAustraliaen_AU
dc.titleStygofaunal community trends along varied rainfall conditions: deciphering ecological niche dynamics of a shallow calcrete in Western Australiaen_AU
dc.typeJournal Articleen_AU
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