Final report: Superior adaptation to drought in Rubus armeniacus (Himalayan blackberry) in northwest Oregon

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dc.contributor.authorYeakley, J.Alan
dc.contributor.authorCaplan, Joshua S.
dc.date.accessioned2020-06-22T15:51:22Z
dc.date.available2020-06-22T15:51:22Z
dc.description.abstractDespite the status Rubus armeniacus (Himalayan blackberry) has as one of the most prolific and damaging plant invaders in the Pacific Northwest, we know little about the role of water relations in its success. The information available on invasive blackberry water relations (Fotelli et al. 2001; McDowell and Turner 2002) suggests that an ability to avoid water stress has been critically important to their proliferation in regions with Mediterranean climates (Amor et al. 1998). We had two objectives regarding the role of water relations in the invasive success of R. armeniacus: Objective 1. Determine if R. armeniacus is better adapted to the Pacific Northwest’s water regime than congeneric natives. To address this objective we tested three hypotheses: a) R. armeniacus remains less water stressed than native congeners throughout the growing season; b) R. armeniacus maintains a higher stomatal conductance at all levels of evaporative demand; and c) R. armeniacus has lower hydraulic resistance than congeneric natives throughout the growing season, as a consequence of lower root and shoot resistances. Objective 2. Determine if and how the water relations of R. armeniacus help it to outgrow native Pacific Northwest competitors.en_US
dc.description.sponsorshipI want to emphasize that we are very grateful to the Center for Invasive Plant Management for this award, and also for working with us during the course of the grant. We hope the products of our work live up to the expectations of CIPM in granting us these funds. We look forward to publishing our results in the peer-reviewed literature, and will be sure to acknowledge the generous support from CIPM in any publication or presentation coming from this work.en_US
dc.description.urihttps://pdxscholar.library.pdx.edu/esm_fac/61/?utm_source=pdxscholar.library.pdx.edu%2Fesm_fac%2F61&utm_medium=PDF&utm_campaign=PDFCoverPagesen_US
dc.format.extent9 pagesen_US
dc.genretechnical reportsen_US
dc.identifierdoi:10.13016/m2tt0a-hbub
dc.identifier.citationYeakley, J. Alan and Caplan, Joshua S., "Superior Adaptation to Drought in Rubus Armeniacus (Himalayan Blackberry) in Northwest Oregon" (2008). Environmental Science and Management Faculty Publications and Presentations. 61. https://pdxscholar.library.pdx.edu/esm_fac/61en_US
dc.identifier.urihttp://hdl.handle.net/11603/18945
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Geography and Environmental Systems Department Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.titleFinal report: Superior adaptation to drought in Rubus armeniacus (Himalayan blackberry) in northwest Oregonen_US
dc.typeTexten_US

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