@Article{DominguesOmNeBrMaEh:2018:EcPlAm,
               author = "Domingues, Tomas Ferreira and Ometto, Jean Pierre Henry Balbaud 
                         and Nepstad, Daniel C. and Brando, Paulo M. and Martinelli, Luiz 
                         Antonio and Ehleringer, James R.",
          affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Earth Innovation Institute} and 
                         {Woods Hole Research Center} and {Universidade de S{\~a}o Paulo 
                         (USP)} and {University of Utah}",
                title = "Ecophysiological plasticity of Amazonian trees to 
                         long\‑term drought",
              journal = "Oecologia",
                 year = "2018",
               volume = "187",
               number = "4",
                pages = "933--940",
                month = "Aug.",
             abstract = "Episodic multi-year droughts fundamentally alter the dynamics, 
                         functioning, and structure of Amazonian forests. However, the 
                         capacity of individual plant species to withstand intense drought 
                         regimes remains unclear. Here, we evaluated ecophysiological 
                         responses from a forest community where we sampled 83 woody plant 
                         species during 5 years of experimental drought (throughfall 
                         exclusion) in an eastern Amazonian terra firme forest. Overall, 
                         the experimental drought resulted in shifts of some, but not all, 
                         leaf traits related to photosynthetic carbon uptake and intrinsic 
                         water-use efficiency. Leaf delta C-13 values increased by 2-3aEuro 
                         degrees within the canopy, consistent with increased diffusional 
                         constraints on photosynthesis. Decreased leaf C:N ratios were also 
                         observed, consistent with lower investments in leaf structure. 
                         However, no statistically significant treatment effects on leaf 
                         nitrogen content were observed, consistent with a lack of 
                         acclimation in photosynthetic capacity or increased production of 
                         nitrogen-based secondary metabolites. The results of our study 
                         provide evidence of robust acclimation potential to drought 
                         intensification in the diverse flora of an Amazonian forest 
                         community. The results reveals considerable ability of several 
                         species to respond to intense drought and challenge commonly held 
                         perspectives that this flora has attained limited adaptive 
                         plasticity because of a long evolutionary history in a favorable 
                         and stable climate.",
                  doi = "10.1007/s00442-018-4195-2",
                  url = "http://dx.doi.org/10.1007/s00442-018-4195-2",
                 issn = "0029-8549",
             language = "en",
           targetfile = "domingues_ecophysiological.pdf",
        urlaccessdate = "27 abr. 2024"
}