Variable interspecific competition under megadrought conditions: rodent population dynamics in semiarid Chile

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dc.article.numbere09848
dc.catalogadorjca
dc.contributor.authorLima, Mauricio
dc.contributor.authorCorrea Cuadros, Jennifer Paola
dc.contributor.authorHenríquez, Sergio
dc.contributor.authorJaksic, Fabian
dc.date.accessioned2023-06-27T13:19:34Z
dc.date.available2023-06-27T13:19:34Z
dc.date.issued2023
dc.description.abstractDeciphering how climatic variability modulates the interspecific interactions in natural systems is one of the most interesting and least studied ecological processes. Rodent outbreaks or irruptions in semiarid Chile are associated with rainfall pulses driven by the El Niño Southern Oscillation (ENSO). During the last decade, north-central Chile has experienced an almost uninterrupted sequence of > 10 dry years, the so-called megadrought, which had led to a new ecological benchmark in this region. We employ a diagnostic approach to analyze abundance data regarding two rodent species, Phyllotis darwini and Abrothrix olivacea, using a 33 year time series spanning from 1987 to 2019. Our population dynamic models provide evidence of competitive interactions within and between both species. This result is novel because we show that rainfall variability influences the degree of interspecific competition and that it is asymmetric. The diagnostic approach used here offers a way to develop simple population models that are useful for understanding the causes of population fluctuations and for predicting population changes under a climate change scenario.
dc.fechaingreso.objetodigital2023-06-27
dc.fuente.origenORCID
dc.identifier.doi10.1111/oik.09848
dc.identifier.issn1600-0706
dc.identifier.urihttp://doi.org/10.1111/oik.09848
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/73568
dc.information.autorucFacultad de Ciencias Biológicas;Correa Cuadros, Jennifer Paola;0000-0003-0288-8886;1031195
dc.language.isoen
dc.nota.accesoContenido completo
dc.revistaOikos
dc.rightsacceso abierto
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.ods13 Climate action
dc.subject.odspa13 Acción por el clima
dc.titleVariable interspecific competition under megadrought conditions: rodent population dynamics in semiarid Chile
dc.typeartículo
sipa.codpersvinculados1031195
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