@article{fdi:010062334, title = {{U}niversal hydraulics of the flowering plants : vessel diameter scales with stem length across angiosperm lineages, habits and climates}, author = {{O}lson, {M}. {E}. and {A}nfodillo, {T}. and {R}osell, {J}. {A}. and {P}etit, {G}. and {C}rivellaro, {A}. and {I}snard, {S}andrine and {L}eon-{G}omez, {C}. and {A}lvarado-{C}ardenas, {L}. {O}. and {C}astorena, {M}.}, editor = {}, language = {{ENG}}, abstract = {{A}ngiosperm hydraulic performance is crucially affected by the diameters of vessels, the water conducting conduits in the wood. {H}ydraulic optimality models suggest that vessels should widen predictably from stem tip to base, buffering hydrodynamic resistance accruing as stems, and therefore conductive path, increase in length. {D}ata from 257 species (609 samples) show that vessels widen as predicted with distance from the stem apex across angiosperm orders, habits and habitats. {S}tandardising for stem length, vessels are only slightly wider in warm/moist climates and in lianas, showing that, rather than climate or habit, plant size is by far the main driver of global variation in mean vessel diameter. {T}erminal twig vessels become wider as plant height increases, while vessel density decreases slightly less than expected tip to base. {T}hese patterns lead to testable predictions regarding evolutionary strategies allowing plants to minimise carbon costs per unit leaf area even as height increases.}, keywords = {{A}daptation ; allometry ; convergence ; hydraulic architecture ; lianas ; linear models ; optimality models ; vessel density ; vessel taper ; xylem}, booktitle = {}, journal = {{E}cology {L}etters}, volume = {17}, numero = {8}, pages = {988--997}, ISSN = {1461-023{X}}, year = {2014}, DOI = {10.1111/ele.12302}, URL = {https://www.documentation.ird.fr/hor/fdi:010062334}, }