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Belowground legacies of Pinus contorta invasion and removal result in multiple mechanisms of invasional meltdown

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dc.contributor.author Dickie, I. A. en
dc.contributor.author St John, M. G. en
dc.contributor.author Yeates, G. W. en
dc.contributor.author Morse, C. W. en
dc.contributor.author Bonner, K. I. en
dc.contributor.author Orwin, K. H. en
dc.contributor.author Peltzer, D. A. en
dc.date.accessioned 2017-03-20T03:44:47Z
dc.date.available 2014-09-16 en
dc.date.issued 2014 en
dc.identifier.citation Dickie et al. (2014). Belowground legacies of Pinus contorta invasion and removal result in multiple mechanisms of invasional meltdown. AoB PLANTS, 6, plu056. doi:10.1093/aobpla/plu056 en
dc.identifier.issn 2041-2851 en
dc.identifier.uri https://hdl.handle.net/10182/7904
dc.description.abstract Plant invasions can change soil biota and nutrients in ways that drive subsequent plant communities, particularly when co-invading with belowground mutualists such as ectomycorrhizal fungi. These effects can persist following removal of the invasive plant and, combined with effects of removal per se, influence subsequent plant communities and ecosystem functioning. We used field observations and a soil bioassay with multiple plant species to determine the belowground effects and post-removal legacy caused by invasion of the non-native tree Pinus contorta into a native plant community. Pinus facilitated ectomycorrhizal infection of the co-occurring invasive tree, Pseudotsuga menziesii, but not conspecific Pinus (which always had ectomycorrhizas) nor the native pioneer Kunzea ericoides (which never had ectomycorrhizas). Pinus also caused a major shift in soil nutrient cycling as indicated by increased bacterial dominance, NO₃⁻N (17-fold increase) and available phosphorus (3.2-fold increase) in soils, which in turn promoted increased growth of graminoids. These results parallel field observations, where Pinus removal is associated with invasion by non-native grasses and herbs, and suggest that legacies of Pinus on soil nutrient cycling thus indirectly promote invasion of other non-native plant species. Our findings demonstrate that multi-trophic below-ground legacies are an important but hitherto largely unconsidered factor in plant community reassembly following invasive plant removal. en
dc.format.extent 15 en
dc.language.iso en en
dc.publisher Oxford University Press on behalf of the Annals of Botany Company en
dc.relation The original publication is available from - Oxford University Press on behalf of the Annals of Botany Company - https://doi.org/10.1093/aobpla/plu056 en
dc.relation.uri https://doi.org/10.1093/aobpla/plu056 en
dc.rights © The Authors 2014 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. en
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject biogeochemical processes en
dc.subject biological invasions en
dc.subject ecosystem function en
dc.subject ectomycorrhizas en
dc.subject facilitation en
dc.subject fungal en
dc.subject bacterial ratio en
dc.subject legacy effects en
dc.subject plant-soil interactions en
dc.subject removal effects en
dc.subject fungal : bacterial ratio en
dc.subject plant–soil interactions en
dc.title Belowground legacies of Pinus contorta invasion and removal result in multiple mechanisms of invasional meltdown en
dc.type Journal Article
lu.contributor.unit Lincoln University en
lu.contributor.unit Bio-Protection Research Centre en
dc.identifier.doi https://doi.org/10.1093/aobpla/plu056 en
dc.subject.anzsrc 050102 Ecosystem Function en
dc.subject.anzsrc 050103 Invasive Species Ecology en
dc.subject.anzsrc 0705 Forestry Sciences en
dc.subject.anzsrc 0503 Soil Sciences en
dc.subject.anzsrc 050303 Soil Biology en
dc.subject.anzsrc 070502 Forestry Biomass and Bioproducts en
dc.relation.isPartOf AoB PLANTS en
pubs.notes SPECIAL ISSUE: The Role of Below-Ground Processes in Mediating Plant Invasions Article code: plu056 Date of acceptance: 03 Sep 2014 en
pubs.organisational-group /LU
pubs.organisational-group /LU/BPRC
pubs.publication-status Published en
pubs.volume 6 en
dc.identifier.eissn 2041-2851 en
dc.rights.licence Attribution en
lu.identifier.orcid 0000-0002-2740-2128


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