@article{fdi:010062301, title = {{A}re ontogenetic shifts in foliar structure and resource acquisition spatially conditioned in tank-bromeliads ?}, author = {{P}etit, {M}. and {C}{\'e}r{\'e}ghino, {R}. and {C}arrias, {J}. {F}. and {C}orbara, {B}. and {D}{\'e}zerald, {O}. and {P}etitclerc, {F}. and {D}ejean, {A}. and {L}eroy, {C}{\'e}line}, editor = {}, language = {{ENG}}, abstract = {{T}he phenotypic plasticity of plants has been explored as a function of either ontogeny (apparent plasticity) or environment (adaptive plasticity), although few studies have analyzed these factors together. {I}n the present study, we take advantage of the dispersal of {A}echmea mertensii bromeliads by {C}amponotus femoratus or {P}achycondyla goeldii ants in shaded and sunny environments, respectively, to quantify ontogenetic changes in morphological, foliar, and functional traits, and to analyze ontogenetic and ant species effects on 14 traits. {M}ost of the morphological (plant height, number of leaves), foliar (leaf thickness, leaf mass area, total water content, trichome density), and functional (leaf 13{C}) traits differed as a function of ontogeny. {C}onversely, only leaf 15{N} showed an adaptive phenotypic plasticity. {O}n the other hand, plant width, tank width, longest leaf length, stomatal density, and leaf {C} concentration showed an adaptation to local environment with ontogeny. {T}he exception was leaf {N} concentration, which showed no trend at all. {A}echmea mertensii did not show an abrupt morphological modification such as in heteroblastic bromeliads, although it was characterized by strong, size-related functional modifications for {CO}2 acquisition. {T}he adaptive phenotypic variation found between the two ant species indicates the spatially conditioned plasticity of {A}.mertensii in the context of insect-assisted dispersal. {H}owever, ant-mediated effects on phenotypic plasticity in {A}.mertensii are not obvious because ant species and light environment are confounding variables.(c) 2014 {T}he {L}innean {S}ociety of {L}ondon, {B}otanical {J}ournal of the {L}innean {S}ociety, 2014, 175, 299-312.}, keywords = {{A}echmea mertensii ; {C}amponotus femoratus ; {F}rench {G}uiana ; leaf traits ; mutualistic ants ; natural stable isotopes ; ontogeny ; {P}achycondyla goeldii ; phenotypic plasticity ; plant morphology ; {GUYANE} {FRANCAISE}}, booktitle = {}, journal = {{B}otanical {J}ournal of the {L}innean {S}ociety}, volume = {175}, numero = {2}, pages = {299--312}, ISSN = {0024-4074}, year = {2014}, DOI = {10.1111/boj.12171}, URL = {https://www.documentation.ird.fr/hor/fdi:010062301}, }