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Community Impacts of Prosopis juliflora Invasion: Biogeographic and Congeneric Comparisons

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dc.contributor.author Kaur, R.
dc.contributor.author Gonzáles, W.L.
dc.contributor.author Llambi, L.D.
dc.contributor.author Soriano, P.J.
dc.contributor.author Callaway, R.M.
dc.contributor.author Rout, M.E.
dc.contributor.author Gallaher, T.J.
dc.contributor.author Inderjit
dc.date.accessioned 2022-01-18T19:34:39Z
dc.date.available 2022-01-18T19:34:39Z
dc.date.issued 2012
dc.identifier.uri https://hdl.handle.net/20.500.12866/11105
dc.description.abstract We coordinated biogeographical comparisons of the impacts of an exotic invasive tree in its native and non-native ranges with a congeneric comparison in the non-native range. Prosopis juliflora is taxonomically complicated and with P. pallida forms the P. juliflora complex. Thus we sampled P. juliflora in its native Venezuela, and also located two field sites in Peru, the native range of Prosopis pallida. Canopies of Prosopis juliflora, a native of the New World but an invader in many other regions, had facilitative effects on the diversity of other species in its native Venezuela, and P. pallida had both negative and positive effects depending on the year, (overall neutral effects) in its native Peru. However, in India and Hawaii, USA, where P. juliflora is an aggressive invader, canopy effects were consistently and strongly negative on species richness. Prosopis cineraria, a native to India, had much weaker effects on species richness in India than P. juliflora. We carried out multiple congeneric comparisons between P. juliflora and P. cineraria, and found that soil from the rhizosphere of P. juliflora had higher extractable phosphorus, soluble salts and total phenolics than P. cineraria rhizosphere soils. Experimentally applied P. juliflora litter caused far greater mortality of native Indian species than litter from P. cineraria. Prosopis juliflora leaf leachate had neutral to negative effects on root growth of three common crop species of north-west India whereas P. cineraria leaf leachate had positive effects. Prosopis juliflora leaf leachate also had higher concentrations of total phenolics and L-tryptophan than P. cineraria, suggesting a potential allelopathic mechanism for the congeneric differences. Our results also suggest the possibility of regional evolutionary trajectories among competitors and that recent mixing of species from different trajectories has the potential to disrupt evolved interactions among native species. en_US
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS ONE
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Peru en_US
dc.subject article en_US
dc.subject controlled study en_US
dc.subject non Population Density en_US
dc.subject United States en_US
dc.subject Geography en_US
dc.subject concentration (parameters) en_US
dc.subject Species Specificity en_US
dc.subject species richness en_US
dc.subject plant leaf en_US
dc.subject Venezuela en_US
dc.subject India en_US
dc.subject leaching en_US
dc.subject Ecosystem en_US
dc.subject Soil en_US
dc.subject Plant Leaves en_US
dc.subject Population Dynamics en_US
dc.subject species invasion en_US
dc.subject Plant Roots en_US
dc.subject Hawaii en_US
dc.subject phenol derivative en_US
dc.subject Phenols en_US
dc.subject Phosphorus en_US
dc.subject plant community en_US
dc.subject Prosopis en_US
dc.subject Prosopis cineraria en_US
dc.subject Prosopis juliflora en_US
dc.subject Prosopis pallida en_US
dc.subject Rhizosphere en_US
dc.subject root growth en_US
dc.subject Salts en_US
dc.subject tryptophan en_US
dc.title Community Impacts of Prosopis juliflora Invasion: Biogeographic and Congeneric Comparisons en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pone.0044966
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.01.00
dc.relation.issn 1932-6203


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