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dc.contributor.authorGomez Fernandez, Maria Jimena
dc.contributor.authorBoston, Emma S.M.
dc.contributor.authorGaggiotti, Oscar Eduardo
dc.contributor.authorKittlein, Marcelo J.
dc.contributor.authorMirol, Patricia M.
dc.identifier.citationGomez Fernandez , M J , Boston , E S M , Gaggiotti , O E , Kittlein , M J & Mirol , P M 2016 , ' Influence of environmental heterogeneity on the distribution and persistence of a subterranean rodent in a highly unstable landscape ' , Genetica , vol. 144 , no. 6 , pp. 711-722 .
dc.identifier.otherPURE: 247675942
dc.identifier.otherPURE UUID: 8262de1d-10ee-410c-aa41-9692822188df
dc.identifier.otherScopus: 84994750462
dc.identifier.otherWOS: 000388105900008
dc.identifier.otherORCID: /0000-0003-1827-1493/work/61370118
dc.descriptionO.E.G was supported by the Marine Alliance for Science and Technology for Scotland.en
dc.description.abstractIn this study we combine information from landscape characteristics, demographic inference and species distribution modelling to identify environmental factors that shape the genetic distribution of the fossorial rodent Ctenomys. We sequenced the mtDNA control region and amplified 12 microsatellites from 27 populations distributed across the Iberá wetland ecosystem. Hierarchical Bayesian modelling was used to construct phylogenies and estimate divergence times. We developed species distribution models to determine what climatic variables and soil parameters predicted species presence by comparing the current to the historic and predicted future distribution of the species. Finally, we explore the impact of environmental variables on the genetic structure of Ctenomys based on current and past species distributions. The variables that consistently correlated with the predicted distribution of the species and explained the observed genetic differentiation among populations included the distribution of well-drained sandy soils and temperature seasonality. A core region of stable suitable habitat was identified from the Last Interglacial, which is projected to remain stable into the future. This region is also the most genetically diverse and is currently under strong anthropogenic pressure. Results reveal complex demographic dynamics, which have been in constant change in both time and space, and are likely linked to the evolution of the Paraná River. We suggest that any alteration of soil properties (climatic or anthropic) may significantly impact the availability of suitable habitat and consequently the ability of individuals to disperse. The protection of this core stable habitat is of prime importance given the increasing levels of human disturbance across this wetland system and the threat of climate change.
dc.rights© 2016, Springer. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at /
dc.subjectHabitat fragmentationen
dc.subjectIbera Wetlanden
dc.subjectPopulation geneticsen
dc.subjectSpecies distribution modelen
dc.subjectGE Environmental Sciencesen
dc.subjectQH301 Biologyen
dc.subjectQH426 Geneticsen
dc.subjectSDG 13 - Climate Actionen
dc.titleInfluence of environmental heterogeneity on the distribution and persistence of a subterranean rodent in a highly unstable landscapeen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.description.statusPeer revieweden

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