title: On research priorities to advance understanding of the safety-efficiency tradeoff in xylem: A response to Bittencourt et al.'s (2016) comment 'On xylem hydraulic efficiencies, wood space-use and the safety-efficiency tradeoff': in this issue of New Phytologist, pp. 1152-1155.
authors.affiliation: Water Management and Systems Research, USDA-ARS, 2150 Center Ave, Build D, Suite 320, Fort Collins, CO, 80526, USA.|Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia.
authors.forename: Sean M
authors.initials: SM
authors.lastname: Gleason
authors.affiliation: Department of Biological Sciences, Macquarie University, Sydney, NSW, 2109, Australia.
authors.forename: Mark
authors.initials: M
authors.lastname: Westoby
authors.affiliation: Institute of Systematic Botany and Ecology, Ulm University, Albert-Einstein-Allee 11, Ulm, 89081, Germany.
authors.forename: Steven
authors.initials: S
authors.lastname: Jansen
authors.affiliation: Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, 2753, Australia.
authors.forename: Brendan
authors.initials: B
authors.lastname: Choat
authors.affiliation: School of Biological Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.
authors.forename: Tim J
authors.initials: TJ
authors.lastname: Brodribb
authors.affiliation: UMR547 PIAF, INRA, Clermont-Ferrand, F-63100, France.|UMR547 PIAF, Université Blaise Pascal, Clermont Université, Clermont-Ferrand, F-63000, France.
authors.forename: Hervé
authors.initials: H
authors.lastname: Cochard
authors.affiliation: UMR BIOGECO, University of Bordeaux, INRA, Talence, F-33450, France.
authors.forename: Sylvain
authors.initials: S
authors.lastname: Delzon
authors.affiliation: Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada.
authors.forename: Uwe G
authors.initials: UG
authors.lastname: Hacke
authors.affiliation: Department of Biology, California State University Bakersfield, Bakersfield, CA, 93311, USA.
authors.forename: Anna L
authors.initials: AL
authors.lastname: Jacobsen
authors.affiliation: Department of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID, 83844, USA.
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Johnson
authors.affiliation: Naturalis Biodiversity Center, Leiden University, PO Box 9517, Leiden, 2300RA, the Netherlands.
authors.forename: Frederic
authors.initials: F
authors.lastname: Lens
authors.affiliation: Department of Integrative Biology, University of Guelph, Guelph, ON, N1G2W1, Canada.
authors.forename: Hafiz
authors.initials: H
authors.lastname: Maherali
authors.affiliation: CREAF, Cerdanyola del Vallès, Barcelona, E-08193, Spain.|Université Autònoma Barcelona, Cerdanyola del Vallès, Barcelona, E-08193, Spain.
authors.forename: Jordi
authors.initials: J
authors.lastname: Martínez-Vilalta
authors.affiliation: Department of Botany, University of Innsbruck, Sternwartestr. 15, Innsbruck, 6020, Austria.
authors.forename: Stefan
authors.initials: S
authors.lastname: Mayr
authors.affiliation: Department of Botany, University of Wisconsin-Madison, Madison, WI, 53705, USA.
authors.forename: Katherine A
authors.initials: KA
authors.lastname: McCulloh
authors.affiliation: Institute of Systematic Botany and Ecology, Ulm University, Albert-Einstein-Allee 11, Ulm, 89081, Germany.
authors.forename: Hugh
authors.initials: H
authors.lastname: Morris
authors.affiliation: Dipartimento Scienze della Vita, Università Trieste, Via L. Giorgieri 10, Trieste, 34127, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Nardini
authors.affiliation: Institute of Systematic Botany and Ecology, Ulm University, Albert-Einstein-Allee 11, Ulm, 89081, Germany.|Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada.
authors.forename: Lenka
authors.initials: L
authors.lastname: Plavcová
authors.affiliation: Department of Biology, California State University Bakersfield, Bakersfield, CA, 93311, USA.
authors.forename: R Brandon
authors.initials: RB
authors.lastname: Pratt
authors.affiliation: Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada.
authors.forename: Stefan G
authors.initials: SG
authors.lastname: Schreiber
authors.affiliation: Department of Biological Sciences, George Washington University, Science and Engineering Hall, 800 22nd Street NW, Suite 6000, Washington, DC, 20052, USA.
authors.forename: Amy E
authors.initials: AE
authors.lastname: Zanne
mesh_terms: D018526:Plant Transpiration; D014867:Water; D014934:Wood; D052584:Xylem
chemical_list: D014867:Water
keywords: hydraulic efficiency; hydraulic safety; plant hydraulics; tradeoff; xylem