The soil bacterial communities of South African fynbos riparian ecosystems invaded by Australian Acacia species

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dc.contributor.authorSlabbert, Etienneen_ZA
dc.contributor.authorJacobs, Shayne Martinen_ZA
dc.contributor.authorJacobs, Karinen_ZA
dc.date.accessioned2016-02-29T14:17:45Z
dc.date.available2016-02-29T14:17:45Z
dc.date.issued2014-01-24
dc.descriptionCITATION: Slabbert, E., Jacobs, S. M. & Jacobs, K. 2014. The soil bacterial communities of South African fynbos riparian ecosystems invaded by Australian Acacia species. PLoS ONE, 9(1):e86560. doi:10.1371/journal.pone.0086560.
dc.descriptionThe original publication is available at http://journals.plos.orgen_ZA
dc.description.abstractRiparian ecosystem along rivers and streams are characterised by lateral and longitudinal ecological gradients and, as a result, harbour unique biodiversity. Riparian ecosystems in the fynbos of the Western Cape, South Africa, are characterised by seasonal dynamics, with summer droughts followed by high flows during winter. The unique hydrology and geomorphology of riparian ecosystems play an important role in shaping these ecosystems. The riparian vegetation in the Western Cape has, however, largely been degraded due to the invasion of non-indigenous plants, in particular Acacia mearnsii, A. saligna and A. dealbata. This study investigated the effect of hydrology and invasion on the bacterial communities associated with fynbos riparian ecosystems. Bacterial communities were characterised with automated ribosomal intergenic spacer analysis (ARISA) and 454 16S rDNA pyrosequencing. Chemical and physical properties of soil within sites were also determined and correlated with community data. Sectioning across the lateral zones revealed significant differences in community composition, and the specific bacterial taxa influenced. Results also showed that the bacterial community structure could be linked to Acacia invasion. The presence of invasive Acacia was correlated with specific bacterial phyla. However, high similarity between cleared and pristine sites suggests that the effect of Acacia on the soil bacterial community structure may not be permanent. This study demonstrates how soil bacterial communities are influenced by hydrological gradients associated with riparian ecosystems and the impact of Acacia invasion on these communities.en_ZA
dc.description.urihttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0086560
dc.description.versionPublisher's versionen_ZA
dc.format.extent10 pagesen_ZA
dc.identifier.citationSlabbert, E., Jacobs, S. M. & Jacobs, K. 2014. The soil bacterial communities of South African fynbos riparian ecosystems invaded by Australian Acacia species. PLoS ONE, 9(1):e86560. doi:10.1371/journal.pone.0086560.
dc.identifier.issn1932-6203 (online)
dc.identifier.otherdoi:10.1371/journal.pone.0086560
dc.identifier.urihttp://hdl.handle.net/10019.1/98232
dc.language.isoen_ZAen_ZA
dc.publisherPLoS
dc.rights.holderPLos
dc.subjectRiparian ecology -- South Africa -- Western Capeen_ZA
dc.subjectAlien plants -- South Africa -- Western Capeen_ZA
dc.subjectBacterial communities in soilen_ZA
dc.subjectSoil ecologyen_ZA
dc.titleThe soil bacterial communities of South African fynbos riparian ecosystems invaded by Australian Acacia speciesen_ZA
dc.typeArticleen_ZA
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