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Author |
Quilichini, Angélique ; Gibernau, Marc |
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Title  |
Leurre et chaleur : la pollination par duperie chez les aracées |
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Journal Article |
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2013 |
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Stantari |
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31 |
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34-43 |
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EcoFoG @ carole.legrand @ |
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162 |
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Author |
Sist, P.; Gourlet-Fleury, S.; Blanc, L.; Mazzei, L.; Priyadi, H.; Ruschel, A.R |
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Title |
Limits of selective logging techniques including RIL in tropical forests to sustain timber yields and to achieve sustainable forest management in general |
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Journal Article |
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2010 |
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The international forestry review |
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12 |
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5 |
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116 |
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EcoFoG @ webmaster @ |
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119 |
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Author |
Thibaut, B.; Beauchêne, J. |
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Title |
Links between wood machining phenomena and wood mechanical properties: The case of 0°/90° orthogonal cutting of green wood |
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Conference Article |
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2004 |
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Proceedings of the 2nd International Symposium on Wood Machining |
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149-160 |
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Vienna |
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EcoFoG @ webmaster @ 1239 |
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188 |
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Author |
Fu, T. ; Touboul, D. ; Della-Negra, S. ; Houël, E. ; Amusant, N. ; Duplais, C. ; Brunelle, A. |
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Title |
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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Conference Article |
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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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Vedel, V.; Camus, D.; Lamarre, G.P.A |
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Title |
Malaise and glass traps: useful means of catching canopy-dwelling spiders? |
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2011 |
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Newsletter of the British Arachnology Society |
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122 |
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12-15 |
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EcoFoG @ webmaster @ |
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157 |
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Burgos, A., Cormier-Salem, M.C., Fromard, F., Gardel, A., Hossaert McKEY, M., Imbert, D., Leflaive, J., Marchand, C., Michaud, E., Proisy, C., Walker, R. |
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Title |
Mangrove : une forêt dans la mer |
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Book Whole |
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Year |
2018 |
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167 |
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Keywords |
Pollution ; dépollution par les plantes ; carbone ; mangrove ; paléruvier ; ecosystème |
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La mangrove, cette forêt entre terre et mer qui borde les littoraux tropicaux, a longtemps été perçue comme un milieu hostile ou inutile... Elle renvoie aussi à un puissant imaginaire des tropiques qui a inspiré bon nombre de nos plus grands écrivains. Cet écosystème, complexe, abrite les palétuviers capables de vivre les pieds dans l'eau salée, des poissons pouvant respirer hors de l'eau, des crabes ingénieurs et une multitude de bactéries indispensables au recyclage de la matière organique. Aujourd'hui, confrontée à la crevetticulture, aux coupes de bois, à la pollution mais aussi sous l'emprise directe des changements climatiques, cette mangrove, grignotée de toute part, est en danger. Cet ouvrage, rédigé par des chercheurs spécialistes du milieu, nous montre combien sa préservation devient un enjeu écologique mondial tant cet écosystème contribue à l'équilibre des littoraux tropicaux et à ceux de la planète tout entière. Sait-on par exemple que ces forêts maritimes jouent le rôle de puits de carbone en absorbant de grandes quantités de CO2 ? Qu'elles peuvent servir de filtres ou d'éponges face aux pollutions humaines ? Qu'elles constituent un rempart contre les tempêtes ou les tsunamis ? Un livre qui nous invite à poser un regard nouveau sur cette forêt si secrète au cœur des enjeux écologiques tropicaux. |
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Le cherche midi |
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Paris - France |
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978-2-7491-5764-1. |
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EcoFoG @ carole.legrand @ |
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313 |
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Author |
Christensen-Dalsgaard, K.; Fournier, M.; Ennos, R.; Barfod, A. |
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Title |
Mechanical constraints on the hydraulic architecture of tropical trees |
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Conference Article |
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2006 |
Publication |
Proceedings of the fifth plant biomechanics conference |
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2 |
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399-404 |
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STFI-Packforsk AB |
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Stockholm (Sweden) |
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Salmén, L. |
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August 28th-september 1st, 2006 |
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EcoFoG @ webmaster @ |
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136 |
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Author |
Brémaud, I.; Minato, K.; Thibaut, B. |
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Title |
Mechanical damping of wood as related to species classification: a preliminary survey |
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Conference Article |
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2009 |
Publication |
Proceedings of the Sixth Plant Biomechanics Conference |
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548-554 |
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UMR EcoFoG |
Place of Publication |
Cayenne, French Guyana |
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Thibaut, B. |
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November 16 - 21, 2009 |
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EcoFoG @ webmaster @ 12 |
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94 |
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Goret, J.Y.; Burban, B.; Burlett, R.; Bosc, A.; Ponton, S. |
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Title |
Mesure automatisée de la respiration du sol, caractérisation et comparaison de deux systèmes |
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2006 |
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Le Cahier Technique de l’Inra |
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Numéro spécial 2006 |
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25-30 |
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122 |
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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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Abstract |
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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