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Author (up) Hattenschwiler, S.; Aeschlimann, B.; Couteaux, M.M.; Roy, J.; Bonal, D. openurl 
  Title High variation in foliage and leaf litter chemistry among 45 tree species of a neotropical rainforest community Type Journal Article
  Year 2008 Publication New Phytologist Abbreviated Journal New Phytol.  
  Volume 179 Issue 1 Pages 165-175  
  Keywords French Guiana; interspecific and intraspecific variation; leaf litter traits; neotropical rainforest; nitrogen; nutrient resorption; phosphorus; stoichiometry  
  Abstract Distinct ecosystem level carbon : nitrogen : phosphorus (C : N : P) stoichiometries in forest foliage have been suggested to reflect ecosystem-scale selection for physiological strategies in plant nutrient use. Here, this hypothesis was explored in a nutrient-poor lowland rainforest in French Guiana. Variation in C, N and P concentrations was evaluated in leaf litter and foliage from neighbour trees of 45 different species, and the litter concentrations of major C fractions were also measured. Litter C ranged from 45.3 to 52.4%, litter N varied threefold (0.68-2.01%), and litter P varied seven-fold (0.009-0.062%) among species. Compared with foliage, mean litter N and P concentrations decreased by 30% and 65%, respectively. Accordingly, the range in mass-based N : P shifted from 14 to 55 in foliage to 26 to 105 in litter. Resorption proficiencies indicated maximum P withdrawal in most species, but with a substantial increase in variation in litter P compared with foliage. These data suggest that constrained ecosystem-level C : N : P ratios do not preclude the evolution of highly diversified strategies of nutrient use and conservation among tropical rainforest tree species. The resulting large variation in litter quality will influence stoichiometric constraints within the decomposer food web, with potentially far-ranging consequences on nutrient dynamics and plant-soil feedbacks.  
  Address [Haettenschwiler, Stephan; Aeschlimann, Beat; Couteaux, Marie-Madeleine; Roy, Jacques] CEFE, CNRS, F-34293 Montpellier 5, France, Email:  
  Corporate Author Thesis  
  Publisher BLACKWELL PUBLISHING Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0028-646X ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000256412500017 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 139  
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