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<datestamp>2018-01-13</datestamp>
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<title lang=en>Leaf natural 15N abundance and total N concentration as potential indicators of plant N nutrition in legumes and pioneer species in a rain forest of French Guiana</title>
<creator>ROGGY, Jean-Christophe</creator>
<creator>PrÉvost, M.</creator>
<creator>Gourbiere, F.</creator>
<creator>Casabianca, H.</creator>
<creator>GARBAYE, Jean</creator>
<creator>Domenach, Anne-Marie</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Silvolab Guyane. Station de recherches forestières ; Institut de Recherche pour le Développement (IRD)</contributor>
<contributor>Ecologie microbienne (EM) ; Institut National de la Recherche Agronomique (INRA) - Université Claude Bernard Lyon 1 (UCBL) - Ecole Nationale Vétérinaire de Lyon (ENVL) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire central d'analyses ; Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Interactions Arbres-Microorganismes (IAM) ; Institut National de la Recherche Agronomique (INRA) - Université de Lorraine (UL)</contributor>
<source>ISSN: 0029-8549</source>
<source>EISSN: 1432-1939</source>
<source>Oecologia</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01031454</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01031454</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01031454</source>
<source>Oecologia, Springer Verlag, 1999, 120 (2), pp.171-182. 〈10.1007/s004420050846〉</source>
<identifier>DOI : 10.1007/s004420050846</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s004420050846</relation>
<language>en</language>
<subject lang=en>TROPICAL RAIN FOREST</subject>
<subject lang=en>d15N</subject>
<subject lang=en>SYMBIOTIC N2 FIXATION</subject>
<subject lang=en>TREE LEGUMES</subject>
<subject lang=en>PIONEER SPECIES</subject>
<subject lang=en>ABONDANCE NATURELLE</subject>
<subject lang=en>DYCORYNIA GUIANENSIS</subject>
<subject>[SDV.EE] Life Sciences [q-bio]/Ecology, environment</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The suitability of the natural 15N abundance and of total N concentration of leaves as indicators of the type of plant N nutrition in a rain forest of French Guiana were tested. Leaf samples from primary legume species, non-legumes (pioneer species) and from the non-N2-fixing species Dicorynia guianensis were analyzed. Both '15N and total leaf N varied widely (m1 r '15N (‰) r 7 and 1 r leaf N(%) r 3.2) suggesting possible distinctions between diazotrophic and non-fixing plants. The '15N also revealed two statistically distinct groups of non-N2-fixing species ('15N = 5.14 - 0.3 vs '15Nv=v1.65 - 0.17) related to the different ecological behaviors of these species in the successional processes. We conclude that the '15N signature of plant leaves combined with their total N concentration may be relevant indicators for identifying functional groups within the community of non-N2-fixing species, as well as for detecting diazotrophy. Despite the variability in the '15N of the non-N2-fixing species, N2-fixing groups can still be identified, provided that plants are simultaneously classified taxonomically, by their leaf '15N and total N concentration and by the presence or absence of nodules. The variability in the '15N of the non-fixing species is discussed.</description>
<date>1999</date>
</dc>
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