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dc.contributor.authorMiller, Alice L.en
dc.contributor.authorDiez, J. M.en
dc.contributor.authorSullivan, Jon J.en
dc.contributor.authorWangen, S. R.en
dc.contributor.authorWiser, S. K.en
dc.contributor.authorMeffin, R.en
dc.contributor.authorDuncan, Richard P.en
dc.date.accessioned2016-10-10T01:53:38Z
dc.date.available2014-04-01en
dc.date.issued2014-04en
dc.date.submitted2013-09-04en
dc.identifier.citationMiller et al. (2014). Quantifying invasion resistance: the use of recruitment functions to control for propagule pressure. Ecology, 95(4), 920-929. doi 10.1890/13-0655.1en
dc.identifier.issn0012-9658en
dc.identifier.urihttps://hdl.handle.net/10182/7461
dc.description.abstractInvasive species distributions tend to be biased towards some habitats compared to others due to the combined effects of habitat-specific resistance to invasion and non-uniform propagule pressure. These two factors may also interact, with habitat resistance varying as a function of propagule supply rate. Recruitment experiments, in which the number of individuals recruiting into a population is measured under different propagule supply rates, can help us understand these interactions and quantify habitat resistance to invasion while controlling for variation in propagule supply rate. Here, we constructed recruitment functions for the invasive herb Hieracium lepidulum by sowing seeds at five different densities into six different habitat types in New Zealand's Southern Alps repeated over two successive years, and monitored seedling recruitment and survival over a four year period. We fitted recruitment functions that allowed us to estimate the total number of safe sites available for plants to occupy, which we used as a measure of invasion resistance, and tested several hypotheses concerning how invasion resistance differed among habitats and over time. We found significant differences in levels of H. lepidulum recruitment among habitats, which did not match the species' current distribution in the landscape. Local biotic and abiotic characteristics helped explain some of the between-habitat variation, with vascular plant species richness, vascular plant cover, and light availability, all positively correlated with the number of safe sites for recruitment. Resistance also varied over time however, with cohorts sown in successive years showing different levels of recruitment in some habitats but not others. These results show that recruitment functions can be used to quantify habitat resistance to invasion and to identify potential mechanisms of invasion resistance.en
dc.format.extent920-929en
dc.language.isoenen
dc.publisherJohn Wiley & Sons, Inc. on behalf of the Ecological Society of Americaen
dc.relationThe original publication is available from - John Wiley & Sons, Inc. on behalf of the Ecological Society of America - https://doi.org/10.1890/13-0655.1 - http://onlinelibrary.wiley.com/doi/10.1890/13-0655.1/abstracten
dc.relation.urihttps://doi.org/10.1890/13-0655.1en
dc.rights© 2014 by the Ecological Society of Americaen
dc.subjectdose-response curveen
dc.subjectestablishmenten
dc.subjecthabitat invasibilityen
dc.subjectHieracium lepidulumen
dc.subjectinvasive speciesen
dc.subjectNew Zealanden
dc.subjectsafe-site limitationen
dc.subjectseed limitationen
dc.subjectseed-sowing experimenten
dc.subjectEcologyen
dc.titleQuantifying invasion resistance: the use of recruitment functions to control for propagule pressureen
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitPest-Management and Conservationen
lu.contributor.unitBio-Protection Research Centreen
lu.contributor.unitResearch Management Officeen
lu.contributor.unit/LU/Research Management Office/2018 PBRF Staff groupen
lu.contributor.unitSoil, Plants and Ecological Sciencesen
dc.identifier.doi10.1890/13-0655.1en
dc.subject.anzsrc050103 Invasive Species Ecologyen
dc.subject.anzsrc0607 Plant Biologyen
dc.subject.anzsrc060703 Plant Developmental and Reproductive Biologyen
dc.subject.anzsrc0501 Ecological Applicationsen
dc.subject.anzsrc0602 Ecologyen
dc.relation.isPartOfEcologyen
pubs.issue4en
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/ECOL
pubs.organisational-group/LU/BPRC
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/2018 PBRF Staff group
pubs.organisational-group/LU/SPES
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://onlinelibrary.wiley.com/doi/10.1890/13-0655.1/abstracten
pubs.volume95en
dc.identifier.eissn1939-9170en


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