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Global distribution modelling of a conspicuous Gondwanian soil protist reveals latitudinal dispersal limitation and range contraction in response to climate warming

dc.contributor.authorBruni, Estelle P.
dc.contributor.authorRusconi, Olivia
dc.contributor.authorBroennimann, Olivier
dc.contributor.authorAdde, Antoine
dc.contributor.authorJauslin, Raphaël
dc.contributor.authorKrashevska, Valentyna
dc.contributor.authorKosakyan, Anush
dc.contributor.authorArmynot du Châtelet, Eric
dc.contributor.authorAlcino, João P. B.
dc.contributor.authorBeyens, Louis
dc.contributor.authorBlandenier, Quentin
dc.contributor.authorBobrov, Anatoly
dc.contributor.authorBurdman, Luciana
dc.contributor.authorDuckert, Clément
dc.contributor.authorFernández, Leonardo D.
dc.contributor.authorGomes e Souza, Maria Beatriz
dc.contributor.authorHeger, Thierry J.
dc.contributor.authorKoenig, Isabelle
dc.contributor.authorLahr, Daniel J. G.
dc.contributor.authorMcKeown, Michelle
dc.contributor.authorMeisterfeld, Ralf
dc.contributor.authorSinger, David
dc.contributor.authorVoelcker, Eckhard
dc.contributor.authorWilmshurst, Janet
dc.contributor.authorWohlhauser, Sebastien
dc.contributor.authorWilkinson, David M.
dc.contributor.authorGuisan, Antoine
dc.contributor.authorMitchel, Edward A. D.
dc.date.accessioned2025-03-17T18:15:19Z
dc.date.available2025-03-17T18:15:19Z
dc.date.issued2023
dc.identifier.urihttp://repositorio.ucm.cl/handle/ucm/5856
dc.description.abstractAim The diversity and distribution of soil microorganisms and their potential for long-distance dispersal (LDD) are poorly documented, making the threats posed by climate change difficult to assess. If microorganisms do not disperse globally, regional endemism may develop and extinction may occur due to environmental changes. Here, we addressed this question using the testate amoeba Apodera vas, a morphologically conspicuous model soil microorganism in microbial biogeography, commonly found in peatlands and forests mainly of former Gondwana. We first documented its distribution. We next assessed whether its distribution could be explained by dispersal (i.e. matching its climatic niche) or vicariance (i.e. palaeogeography), based on the magnitude of potential range expansions or contractions in response to past and on-going climatic changes. Last, we wanted to assess the likelihood of cryptic diversity and its potential threat from climate and land-use changes (e.g. due to limited LDD). Location Documented records: Southern Hemisphere and intertropical zone; modelling: Global. Methods We first built an updated global distribution map of A. vas using 401 validated georeferenced records. We next used these data to develop a climatic niche model to predict its past (LGM, i.e. 21 ± 3 ka BP; PMIP3 IPSL-CM5A-LR), present and future (IPSL-CMP6A-LR predictions for 2071–2100, SSP3 and 5) potential distributions in responses to climate, by relating the species occurrences to climatic and topographic predictors. We then used these predictions to test our hypotheses (dispersal/vicariance, cryptic diversity, future threat from LDD limitation). Results Our models show that favourable climatic conditions for A. vas currently exist in the British Isles, an especially well-studied region for testate amoebae where this species has never been found. This demonstrates a lack of interhemispheric LDD, congruent with the palaeogeography (vicariance) hypothesis. Longitudinal LDD is, however, confirmed by the presence of A. vas in isolated and geologically young peri-Antarctic islands. Potential distribution maps for past, current and future climates show favourable climatic conditions existing on parts of all southern continents, with shifts to higher land from LGM to current in the tropics and a strong range contraction from current to future (global warming IPSL-CM6A-LR scenario for 2071–2100, SSP3.70 and SSP5.85) with favourable conditions developing on the Antarctic Peninsula. Main Conclusions This study illustrates the value of climate niche models for research on microbial diversity and biogeography, along with exploring the role played by historical factors and dispersal limitation in shaping microbial biogeography. We assess the discrepancy between latitudinal and longitudinal LDD for A. vas, which is possibly due to contrast in wind patterns and/or likelihood of transport by birds. Our models also suggest that climate change may lead to regional extinction of terrestrial microscopic organisms, thus illustrating the pertinence of including microorganisms in biodiversity conservation research and actions.es_CL
dc.language.isoenes_CL
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
dc.sourceDiversity and Distributions, 30(2), e13779es_CL
dc.subjectApodera vases_CL
dc.subjectClimate changees_CL
dc.subjectConservation biogeographyes_CL
dc.subjectCosmopolitanismes_CL
dc.subjectEndemismes_CL
dc.subjectFree-living protistses_CL
dc.subjectGondwanaes_CL
dc.subjectMicrobial biogeographyes_CL
dc.subjectPalaeogeographyes_CL
dc.subjectSoil biodiversityes_CL
dc.subjectSpecies distribution modellinges_CL
dc.subjectTestate amoebaees_CL
dc.titleGlobal distribution modelling of a conspicuous Gondwanian soil protist reveals latitudinal dispersal limitation and range contraction in response to climate warminges_CL
dc.typeArticlees_CL
dc.ucm.indexacionScopuses_CL
dc.ucm.indexacionIsies_CL
dc.ucm.urionlinelibrary.wiley.com/doi/10.1111/ddi.13779es_CL
dc.ucm.doidoi.org/10.1111/ddi.13779es_CL


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