An island biogeography approach for understanding changes in compositional similarity at present scenario of biotic homogenization

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dc.contributor.authorVergara, Pablo M.
dc.contributor.authorPizarro, Jaime
dc.contributor.authorCastro, Sergio A.
dc.date.accessioned2024-01-10T12:04:13Z
dc.date.available2024-01-10T12:04:13Z
dc.date.issued2011
dc.description.abstractLocal extinction of native species and colonization of non-native species are commonly invoked as responsible for changes in species similarity among biotas of different regions. In this study we used a model of species similarity between islands to assess the emergent, and unexplored, effects of changes in colonization by native species, extinction of non-native species, and propagule pressure on species similarity among insular communities. The model predicts that extinction probability of endemic species has a positive but asymptotic effect on species similarity, which is exacerbated by increasing colonization and reducing extinction of non-native species. Species similarity tends to increase with increasing colonization probability by non-native species, however this effect may be reduced, or even reverted, when the islands are exposed to an elevated number of non-native species that are prone to extinction, high levels of endemic species loss, and an initially large number of native species shared between islands. Species similarity was positively affected by the propagule pressure rate of non-native species only when their colonization and extinction probabilities were large and small enough, respectively. A negative effect of propagule pressure rate can be caused by an increase in the pool size of non-native species, which involves the introduction of different species into different islands, promoting biotic differentiation between islands. Our results indicate that the interactions between colonization, extinction and species pool lead to nonlinear responses and unexpected scenarios of biotic change. In order to validate model predictions, future research programs should focus on understanding the dynamics on such complex meta-communities where coexist native, non-native and endemic species. (C) 2011 Elsevier B.V. All rights reserved.
dc.description.funderFONDECYT
dc.description.funderUniversidad de Santiago
dc.description.funderCenter for the Development of Nanoscience and Nanotechnolgy (CEDENNA
dc.description.funderCenter for Advanced Studies in Ecology and Biodiversity (CASEB)
dc.fechaingreso.objetodigital2024-04-09
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.ecolmodel.2011.03.024
dc.identifier.eissn1872-7026
dc.identifier.issn0304-3800
dc.identifier.urihttps://doi.org/10.1016/j.ecolmodel.2011.03.024
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75732
dc.identifier.wosidWOS:000291497300006
dc.information.autorucMedicina;Castro S ;S/I;116182
dc.issue.numero12
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final1971
dc.pagina.inicio1964
dc.publisherELSEVIER
dc.revistaECOLOGICAL MODELLING
dc.rightsacceso restringido
dc.subjectBiotic homogenization
dc.subjectIsland biogeography
dc.subjectBiological invasions
dc.subjectNon-native species
dc.subjectEndemic species
dc.subjectSPECIES INVASIONS
dc.subjectTAXONOMIC HOMOGENIZATION
dc.subjectFLORISTIC HOMOGENIZATION
dc.subjectPROPAGULE PRESSURE
dc.subjectGLOBAL PATTERNS
dc.subjectNULL MODEL
dc.subjectESTABLISHMENT
dc.subjectEXTINCTION
dc.subjectDIVERSITY
dc.subjectIMMIGRATION
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleAn island biogeography approach for understanding changes in compositional similarity at present scenario of biotic homogenization
dc.typeartículo
dc.volumen222
sipa.codpersvinculados116182
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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