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Ribaud, Margot |
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Title |
Comment améliorer la cartographie de la biodiversité de la forêt amazonienne ? |
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2016 |
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29 |
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cartographie ; biodiversité ; forêt amazonienne |
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EcoFoG @ carole.legrand @ |
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292 |
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Author |
Lopez, Manon |
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Title |
Les plantations forestières en Guyane : sont elles une solution durable à l'approvisionnement bois dans les prochaines années ? |
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2016 |
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plantations forestières ; Guyane française ; filière bois ; carbone |
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ONF |
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Cayenne - Guyane française |
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EcoFoG @ carole.legrand @ |
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293 |
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Houël, Emeline ; Rodrigues, A.M.S. ; Amusant, N. ; Odonne, G. ; Courtois, E. ; Beauchêne, J. ; Jahn-Oyac, A. ; Bessière, J.M. ; Gonzales, G. ; Duplais, C. ; Espindola, L. S. ; Eparvier, V. ; Deharo, E. ; Dusfour, I. ; Stien, D. |
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Title |
How can plant defences lead to valuable products? Inspiration from plant complexity in phytochemistry |
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Conference Article |
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2016 |
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Celebration of the 50th anniversary of the CAY Herbarium – “The importance of the herbarium in plant science” International conference – Cayenne – French Guiana – 5-8 October 2015 |
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69 |
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Flora of the Guianas (FOG) Meeting and Seminars |
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EcoFoG @ carole.legrand @ |
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301 |
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Fu, T. ; Touboul, D. ; Della-Negra, S. ; Houël, E. ; Amusant, N. ; Duplais, C. ; Brunelle, A. |
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Localization od bioactive metabolites in durable ? Tropical tree Sextonia rubra (Lauracaea) with argon and bismuth cluster dual beam depth profiliing and imaging |
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2016 |
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Imaging mass spectrometry conference – Ustron – Pologne – Octobre 2016 |
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Many tropical tree species generate natural decay resistance by producing bioactive metabolites. Among them, Sextonia rubra (Lauraceae) is a widely exploited species for construction in French Guiana. Rubrynolide and rubrenolide, which are secondary metabolites isolated from the stem wood of S. rubra, exhibit potent antifungal and termiticidal activities that result in the exceptional durability of the heartwood. Although the structure and total synthesis of these two biologically active compounds have been well described in literature, little is known about their cellular localization or biosynthesis process in living trees. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) has been well known for its high lateral resolution imaging with a typical beam size of 0.4-2 µm, thus sufficient to image the wood surface at subcellular level.
Wood surfaces of sapwood, transition zone and heartwood from living trees of S. rubra were prepared with ultramicrotome using diamond knife. Each surface was mapped by Bi3+ cluster TOF-SIMS with high lateral resolution (~ 0.4 µm) which was achieved by employing burst alignment primary ion focusing mode with an extraction delay of the secondary ions to improve mass resolution. 3D imaging of a multi-structure wood sample was performed using dual beam depth profiling method, with 25 keV Bi3+ and 10 keV Ar1000+ as analysis and sputter beam, respectively. To examine the effect of life-history traits on the production of bioactive metabolites, the corresponding counterparts from a tree which had suffered stress during growth were investigated as well. |
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EcoFoG @ carole.legrand @ |
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302 |
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Author |
Marcon, Eric |
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Title |
Mesurer la Biodiversité et la Structuration Spatiale |
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2016 |
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321 |
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Statisitques spatiales; Processus ponctuels; Biodiversité;Entropie |
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Mes travaux de recherche portent sur la caractérisation de l’hétérogénéité, précisément des structures spatiales et de la diversité. J’ai développé de nouvelles mesures de la structure spatiale appliquées principalement en économie géographique et des mesures de diversité appliquées principalement à la biodiversité des arbres. Le fil directeur de ces travaux méthodologiques est de construire des mesures correspondant à une réalité physique, facilement compréhensible, pouvant être utilisées ensuite pour comprendre sans ambiguïté les processus économiques ou écologiques concernés.
Mon projet de recherche à moyen terme consiste à combiner les deux approches pour caractériser la diversité explicitement dans l’espace et dans le temps, et à étendre mes méthodes à d’autres objets (diversité microbienne par exemple) plus complexes. Au-delà de ces travaux méthodologiques, mon objectif à plus long terme est d’aller vers la modélisation des processus générant les patrons de diversité. |
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Habilitation thesis |
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Université de Guyane |
Place of Publication |
Kourou - Guyane française |
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Francais |
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EcoFoG @ webmaster @ |
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262 |
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Zoogones, Laurence: Ouliac, Benjamin; Dourdain, Aurélie: Hérault, Bruno |
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Secteur UTCF : Utilisation des terres, leurs changements et la forêt |
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2016 |
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79 |
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Vuyane Energie Climat |
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Cayenne |
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EcoFoG @ webmaster @ |
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263 |
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Say Anouhe, J.B. ; Adima, A.A. ; Niamké, B.F. ; Stien, Didier ; Kassi Amian, B. ; Virieux, D. ; Pirate, J.L. ; Kati-Coulibaly, S. ; Amusant, Nadine |
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Wood Natural durability study source of biomolecules: case of Dicorynia guianensis Amsh. Heartwood |
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Conference Article |
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2016 |
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IRG/WP |
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10871 |
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EcoFoG @ webmaster @ |
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288 |
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Cortesero, A.-M.; Proffit, M.; Duplais, Christophe.; Viard, V. |
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Title |
Chemical Ecology: An Integrative and Experimental Science |
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Book Chapter |
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2016 |
Publication |
Chemical Ecology: New Advances |
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23-46 |
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Biological invasions; Chemical ecology; Non-indigenous species; Semiochemicals; Trophic network |
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All living organisms, whether plants, animals or microorganisms, interact through chemical compounds. Chemical ecology seeks to identify the compounds that are involved in these interactions, the structures that allow their biosynthesis, emission and perception. It deciphers their implication in the functioning and the evolution of the living organisms whether at a molecular, individual, population or ecosystemic scale. Semiochemicals are involved in the interactions of organisms among themselves and with their environment. Involved in numerous interactions, semiochemicals play an essential role in the structuring of trophic networks and the evolution of the species. Chemical ecology also sheds light on certain large ecological problems like biological invasions and helps envision new methods for managing invasive species. The chemical signals emitted in the environment by local species play a role from the beginning of the introduction process, notably for the detection of habitats favorable to the establishment of non-indigenous species. © ISTE Ltd 2016. |
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UMR 7144 Adaptation et Diversité en Milieu Marin, Station biologique de Roscoff CNRS, UPMC, Roscoff, France |
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Export Date: 22 March 2017 |
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EcoFoG @ webmaster @ |
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279 |
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