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9. Disentangling regional and local tree diversity in the Amazon

Author

Stropp, J., ter Steege, H., Malhi, Y., Molino, Jean-François (collab.), Pélissier, Raphaël (collab.), Prévost, Marie-Françoise (collab.), and Sabatier, Daniel (collab.)

Subjects
FORET, STRUCTURE DU PEUPLEMENT, PALEOCLIMAT, FACTEUR CLIMATIQUE, DIVERSITE SPECIFIQUE, DYNAMIQUE DE VEGETATION, DISTRIBUTION SPATIALE, ARBRE FORESTIER
Published
2009

10. Tension wood and opposite wood in 21 tropical rain forest species : occurence and efficiency of the G.-Layer

Author

Clair, B., Ruelle, J., Beauchêne, J., Prévost, Marie-Françoise, Fournier, M., Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])

Subjects
tension wood, G-layer, wood anatomy, French Guyana, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, FORET TROPICALE HUMIDE, Gelatinous layer, ANATOMIE DU BOIS, tropical rain forest, TENSION DU BOIS
Published
2006

11. Tension wood and opposite wood in 21 tropical rain forest species. 1. Occurence and efficiency of G-layer

Author

Clair, Bruno, Ruelle, Julien, Beauchêne, Jacques, Prévost, Marie-Françoise, Fournier, Meriem, 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), Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), School of Bio-agricultural Science (SBS-NAGOYA), Nagoya University, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), and Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud])

Subjects
[SPI.OTHER]Engineering Sciences [physics]/Other, tension wood, G-layer, gelatinous layer, wood anatomy, French Guyana, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, tropical rain forest
Abstract

A-06-21; Wood samples were taken from the upper and lower sides of 21 naturally tilted trees from 18 families of angiosperms in the tropical rain forest in French Guyana. The measurement of growth stresses ensured that the two samples were taken from wood tissues in a different mechanical state: highly tensile stressed wood on the upper side, called tension wood, and lower tensile stressed wood on the lower side, called opposite wood. Eight species had tension wood fibres with a distinct gelatinous layer (G-layer). The distribution of gelatinous fibres varied from species to species. One of the species, Casearia javitensis (Flacourtiaceae), showed a peculiar multilayered secondary wall in its reaction wood. Comparison between the stress level and the occurrence of the G-layer indicates that the G-layer is not a key factor in the production of high tensile stressed wood.

Published
2006
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12. Ecosystèmes tropicaux : actes du 2ème colloque de restitution du programme de recherche

Author

Sabatier, Daniel (coord.), Couteron, P., Elfort, Georges, Madelaine, C., Molino, Jean-François, Nicolini, E., Prévost, Marie-Françoise, Pélissier, Raphaël, Proisy, Christophe, Smock, Jean-Louis, Tarcy, Michel, Abner, E., Baisie, M., Bonal, D., Domenach, A.M., Freycon, V., Godard, I., Gond, V., Goret, J.Y., Kago, F., Koese, M., Kwasie, F., Le Fol, J., Lentillus, E., Ngwete, O., Roggy, J.C., Santé, R., Weigel, J., Trichon, V., Lafitte-Olano, A., Franc, A. (collab.), Guehl, J.M. (collab.), Théveniaut, H. (collab.), Bonhême, I. (ed.), Appora, V. (ed.), Atramentowicz, M. (ed.), and Gillon, Yves (ed.)

Subjects
FORET, AZOTE, ARBRE, STRUCTURE DU PEUPLEMENT, EAU, VARIATION SPATIALE, GEOMORPHOLOGIE, DIVERSITE SPECIFIQUE, RELATION SOL PLANTE, TELEDETECTION, MONTAGNE, ROCHE MERE DU SOL
Published
2006

13. Evaluation multi-échelles de la diversité spécifique, structurale et fonctionnelle des arbres en forêt guyanaise : prise en compte du substrat géologique, des types de sols et de la dynamique sylvigénétique (DIME)

Author

Sabatier, Daniel, Couteron, Pierre, Elfort, Georges, Madelaine, Cécile, Molino, Jean-François, Nicolini, Eric-André, Prévost, Marie-Françoise, Pélissier, Raphaël, Proisy, Christophe, Smock, Louis, Tarcy, Michel, Abner, Etienne, Baisie, Michel, Bonal, Damien, Domenach, Anne-Marie, Freycon, Vincent, Godard, Isabelle, Gond, Valéry, Goret, Jean-Yves, Kago, Ficadici, Koese, Martinus, Kwasie, Frits, Le Fol, Jérôme, Lentillus, E., Ngwete, Onoefe, Roggy, Jean-Christophe, Sante, Richard, and Weigel, Jean

Subjects
Intéraction génotype environnement, F40 - Écologie végétale, Télédétection, Sciences du sol, Caractéristique du peuplement, K01 - Foresterie - Considérations générales, Système d'information géographique, Forêt tropicale humide, Facteur du milieu, Substrat de culture, peuplement forestier, P01 - Conservation de la nature et ressources foncières, Biodiversité, U30 - Méthodes de recherche
Published
2006

14. Ecology and management of a neotropical rainforest : lessons drawn from Paracou, a long-term experimental research site in French Guiana

Author

Domenach, A.M., Roggy, J.C., Molino, Jean-François, Marechal, J., Sabatier, Daniel, Prévost, Marie-Françoise, Gourlet-Fleury, S. (ed.), Guehl, J.M. (ed.), and Laroussinie, O. (ed.)

Subjects
FORET DENSE, FIXATION BIOLOGIQUE DE L'AZOTE, FONCTIONNEMENT DE L'ECOSYSTEME, GESTION DE L'ENVIRONNEMENT, INDICE FOLIAIRE, ARBRE FORESTIER, CYCLE BIOGEOCHIMIQUE
Published
2004

15. Diversity of the leguminous tree Rhizobium associations and role of the nitrogen fixation on the stability of the rainforest in French Guiana

Author

Domenach, Anne-Marie, ROGGY, Jean-Christophe, Molino, Jean-François, Maréchal, Joëlle, Sabatier, Daniel, Prévost, Marie-Françoise, 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 ), Botanique et Modélisation de l'Architecture des Plantes et des Végétations ( UMR AMAP ), Centre de Coopération Internationale en Recherche Agronomique pour le Développement ( CIRAD ) -Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD [France-Sud] ), Ecologie microbienne ( EM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Vétérinaire de Lyon ( ENVL ) -Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique ( INRA ) -VetAgro Sup ( VAS ), Centre de Cayenne, Institut de Recherche pour le Développement ( IRD ), Absent, 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), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Laboratoire d'Ecologie Microbienne - UMR 5557 (LEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Vétérinaire de Lyon (ENVL)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Institut de Recherche pour le Développement (IRD), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Ecole Nationale Vétérinaire de Lyon (ENVL), Sylvie Gourlet-Fleury (Editeur), Jean-Marc Guehl (Editeur), Olivier Laroussinie (Editeur), GIP ECOFOR, Groupement d'Intérêt Public Ecosystèmes Forestiers - Paris (FRA), and ProdInra, Archive Ouverte

Subjects
[SDV] Life Sciences [q-bio], [ SDV ] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], 15N, EXPERIMENTAL PROCEDURE, N2, ECOSYSTEM, MIMOSACEAE, TROPICAL RAINFOREST, CAESALPINIACEAE, PAPILIONACEAE
Abstract

absent

Published
2004

16. Nouragues : Dynamics and Plant-Animal Interactions in a Neotropical Rainforest

Author

Belbenoit, P., Poncy, O., Sabatier, Daniel, Prévost, Marie-Françoise, Riéra, B., Blanc, P., Larpin, D., Sarthou, C., Servant, Michel, Tardy, C., Bongers, F. (ed.), Charles-Dominique, P. (ed.), Forget, P.M. (ed.), and Théret, M. (ed.)

Subjects
INSELBERG, COMPOSITION FLORISTIQUE, INVENTAIRE DE VEGETATION, FORET DENSE, SAVANE, DISTRIBUTION SPATIALE
Published
2001

17. Broad-scale spatial pattern of forest landscape types in the Guiana Shield

Author

UCL - SST/ELI - Earth and Life Institute, Gond, Valéry, Freycon, Vincent, Molino, Jean-François, Brunaux, Olivier, Ingrassia, Florent, Joubert, Pierre, Pekel, Jean-François, Prévost, Marie-Françoise, Thierron, Viviane, Trombe, Pierre-Julien, Sabatier, Daniel, UCL - SST/ELI - Earth and Life Institute, Gond, Valéry, Freycon, Vincent, Molino, Jean-François, Brunaux, Olivier, Ingrassia, Florent, Joubert, Pierre, Pekel, Jean-François, Prévost, Marie-Françoise, Thierron, Viviane, Trombe, Pierre-Julien, and Sabatier, Daniel

Abstract

Detecting broad scale spatial patterns across the South American rainforest biome is still a major challenge. Although several countries do possess their own, more or less detailed land-cover map, these are based on classifications that appear largely discordant from a country to another. Up to now, continental scale remote sensing studies failed to fill this gap. They mostly result in crude representations of the rainforest biome as a single, uniform vegetation class, in contrast with open vegetations. A few studies identified broad scale spatial patterns, but only when they managed to map a particular forest characteristic such as biomass. The main objective of this study is to identify, characterize and map distinct forest landscape types within the evergreen lowland rainforest at the sub-continental scale of the Guiana Shield (north-east tropical South-America 10° North-2° South; 66° West-50° West). This study is based on the analysis of a 1-year daily data set (from January 1st to December 31st, 2000) from the VEGETATION sensor onboard the SPOT-4 satellite (1-km spatial resolution). We interpreted remotely sensed landscape classes (RSLC) from field and high resolution remote sensing data of 21 sites in French Guiana. We cross-analyzed remote sensing data, field observations and environmental data using multivariate analysis. We obtained 33 remotely sensed landscape classes (RSLC) among which five forest-RSLC representing 78% of the forested area. The latter were classified as different broad forest landscape types according to a gradient of canopy openness. Their mapping revealed a new and meaningful broad-scale spatial pattern of forest landscape types. At the scale of the Guiana Shield, we observed a spatial patterns similarity between climatic and forest landscape types. The two most open forest-RSLCs were observed mainly within the north-west to south-east dry belt. The three other forest-RSLCs were observed in wetter and less anthropized areas, particularl

Published
2011

18. Proceedings forum biodiversity - treasures in the world's forests

Author

Molino, Jean-François, Sabatier, Daniel, Birnbaum, P., Prévost, Marie-Françoise, Poker, J. (ed.), Stein, I. (ed.), and Werder, U. (ed.)

Subjects
REPARTITION VERTICALE, RADIOMETRIE, INDEX DE DIVERSITE, FORET, COUVERT VEGETAL, FORMATION VEGETALE, TOPOGRAPHIE DYNAMIQUE, BIODIVERSITE, DIVERSITE SPECIFIQUE, CANOPEE FORESTIERE, FACTEUR EDAPHIQUE, VARIATION SPATIALE, INDEX HURLBERT, METHODOLOGIE
Published
1999

19. Etude d'impact du banc d'essais des étages à poudre d'Ariane 5 (BEAP) : conséquences des rejets gazeux sur l'environnement : étude integrée en pédologie, géomorphologie, botanique, hydrologie et géochimie sur le périmètre de contact et dans les eaux des bassins de la Karouabo et de la Passoura : rapport final

Author

Lointier, Marc, Grimaldi, Catherine, Sabatier, Daniel, Prévost, Marie-Françoise, Prost, M.T., and Barthès, Bernard

Subjects
BANC D'ESSAI, REJET GAZEUX, SYSTEME D'INFORMATION GEOGRAPHIQUE, CHIMIE DE L'EAU, PEDOLOGIE, HYDROLOGIE, ETUDE D'IMPACT, GEOMORPHOLOGIE, POLLUTION CHIMIQUE, FUSEE ARIANE, BOTANIQUE, IMPACT SUR L'ENVIRONNEMENT
Published
1999

21. Phytogéographie tropicale : réalités et perspectives

Author

Prévost, Marie-Françoise, Sabatier, Daniel, Guillaumet, Jean-Louis (ed.), Belin, M. (ed.), and Puig, H. (ed.)

Subjects
STRUCTURE DU PEUPLEMENT, FORET DENSE, VARIATION SPATIALE, STRATE LIGNEUSE, DIVERSITE SPECIFIQUE, MODELISATION
Abstract

En forêt tropicale humide, richesse et diversité spécifiques sont presque toujours très élevées. Il n'en demeure pas moins que ces descripteurs prennent des valeurs très variables dans l'espace et dans le temps. Ces fluctuations ont été mises en relation soit avec la genèse des peuplements et donc la proximité des centres de dispersions (refuges, centres de spéciation), soit avec les facteurs écologiques, tels que : gradients climatiques, géographiques ou altitudinaux ; successions secondaires ; fertilité chimique ou physique des sols. Grâce à une trentaine d'hectares d'inventaires que nous avons réalisés dans cinq stations de Guyane française et aux connaissances acquises dans une sixième (Mori et Boom, 1987), nous montrons que le peuplemnet arboré présente des variations notables de ces descripteurs, tant à l'échelle régionale qu'à celle de la station. A chacun de ces niveaux de perception, la dynamique sylvigénétique peut rendre compte des fluctuations observées. (Résumé d'auteur)

Published
1996

26. Mise en valeur de l'écosystème forestier guyanais (opération ECEREX)

Author

Sarrailh, J.M., Foresta, Hubert de, Maury-Lechon, G., Prévost, Marie-Françoise, and Sarrailh, J.M. (coord.)

Subjects
ECOSYSTEME FORESTIER, STRATEGIE DE RECHERCHE, FORMATION VEGETALE, FRUIT, EVOLUTION, FORET PRIMAIRE, GRAINE, REGENERATION, COUPE PAPETIERE, ESPECE PIONNIERE HELIOPHILE, COMPETITION INTERSPECIFIQUE, ARBOCEL, BIOMASSE LIGNEUSE, DYNAMIQUE DE VEGETATION, FLORE
Published
1990

33. Pharmacopées traditionnelles en Guyane : créoles, palikur, wayâpi

Author

Grenand, Pierre, Moretti, Christian, Jacquemin, Henri, and Prévost, Marie-Françoise (ill.)

Subjects
MEDECINE TRADITIONNELLE, PLANTE MEDICINALE, NOM SCIENTIFIQUE, MORPHOLOGIE, POSOLOGIE, PHARMACOPEE, PHARMACOLOGIE, CHIMIE, TAXONOMIE, USAGE THERAPEUTIQUE, ETHNOMEDECINE, ETHNOBOTANIQUE, HERBIER, FAMILLE, COLLECTION REFERENCE, NOM VERNACULAIRE ETHNIQUE, ECOLOGIE
Abstract

Plus de 500 plantes médicinales sont recensées, appartenant pour la plupart à une flore amazonienne méconnue. Les analyses chimiques préliminaires réalisées permettent une première appréciation de la valeur curative des drogues. Sont aussi mentionnés les résultats des études chimiques et pharmacologiques plus approfondies susceptibles d'éclairer les usages recueillis.

Published
1987

44. Les Mammifères frugivores arboricoles nocturnes d'une forêt Guyanaise : Inter-Relations Plantes-Animaux

Author

Charles-Dominique, P., Atramentowicz, M., Charles-Dominique, M., Gérard, H., Hladik, A., Hladik, C.-M., Prévost, Marie-Françoise, Eco-Anthropologie et Ethnobiologie (EAE), Muséum national d'Histoire naturelle (MNHN)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Hladik, Claude Marcel, and Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Paris Diderot - Paris 7 (UPD7)

Subjects
PRODUCTION, MAMMIFERE, FORET, STRUCTURE DU PEUPLEMENT, FRUIT, ZOOLOGIE, COEVOLUTION, RELATION PLANTE ANIMAL, INVENTAIRE FAUNISTIQUE, ZOOCHORIE, PHYSIOLOGIE ANIMALE, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, NUTRITION, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ECOLOGIE, FRUGIVORE, Ecology, Evolution, Behavior and Systematics, ComputingMilieux_MISCELLANEOUS, FLORE
Abstract

The relationships between a community of nine nocturnal frugivorous mammal species and the plants on which they feed were studied during 14 consecutive months in a secondary forest near Cayenne, French Guiana. Two major trophic groups can be defined : 1.-The seed eaters, which open unripe fruits to eat their seeds. All are rodents : Coendou prehensilis (average adult weight 4 000 g), Echimys armatus (400 g) and Oryzomys concolor (35 g). 2.-The pulp eaters, which specialize in ripe fruits. They eat the pulp and swallow most of the seeds which are disseminated with their feces. Five of them are marsupials : Didelphis marsupialis (1 000 g), Philander opossum (400 g), Caluromys philander (300 g), Marmosa cinerea (80 g) and Marmosa murina (45 g). The sixth species is a Procyonid Carnivore : Potos flavus (3 000 g) . These differing types of feeding strategies are discussed in relation to the morphology of the teeth and digestive tract of the species. Species with a similar diet and comparable body size generally live in different forest layers. The population density and biomass of these nocturnal frugivorous mammals were estimated on the basis of direct counts along forest trails at night, trapping results and radio-tracking. Out of the 127 plant species listed, 26 play a major role as a food source for the mammals studied. The trunk diameter (DBH) of the 13 most common species was measured, and the distribution of these trees mapped in the 8.5 ha study area. These 13 tree species account for approximately half of the total basal area, which is considered here as an index of standing crop biomass. The same 13 species account for 25 % of the total number of individual trees. Fruit production was measured during 13 months by weighing all fallen fruits along 1 200 m of trails. Fruit production and consumption of the same species were also estimated by the use of fruit collectors located under fruiting trees. Special attention was given to the phenological cycles of trees. Three types of fruiting cycles could thus be related to three different foraging strategies of the sympatric frugivorous mammals : 1.-Species with a low fruit production spread over an extended time period. Only a few fruit ripen at the same time, but fruiting takes place almost all year long. Such trees are early- or late-pionneer species ; their fruits have tiny seeds which are mainly eaten by small vertebrates which scatter them more or less homogeneously. 2.-Species with synchronous, but irregular cycles of fruit production. Such trees have rather large seeds which are very attractive to seed-eating rodents. These animals even destroy part of the fruit crop before ripening. The massive, irregular, and unpredictable fruiting cycles of these species may reduce seed predation by rodents. The few trees belonging to this category which do not bear fruit synchronously with their conspecifics may have their crop totally destroyed by rodents. 3.-Species with synchronous and regular cycles of fruit production. Such trees have rather large seeds, which are ingested by large frugivorous vertebrates and spread through their feces. Chemical or physical deterrents are generally present in such fruits before ripening. The tree species belonging to this category have successive and partly overlapping periods of fruit production. In this way, food is made available for pulp-eaters during most of the year. This pattern of fructification is presumably the end-result of a long lasting mutual interaction between plants and seed-scattering vertebrates. Frugivorous mammals apparently need two different kinds of fruit in their diet, some rich in sugar and others rich in fat. Trees producing these two categories of fruit produce their crop successively, so that the necessary nutrients are made available throughout the year. A definite decrease in fruit production takes place in our study area just before the beginning of the dry season. The marsupial pulp-eaters have adapted to this temporary food shortage by storing fat during the season of plenty. However, their production of young is strongly affected by this seasonal food shortage, as shown by an increased mortality rate of pouch youngs., Charles-Dominique Pierre,Atramentowicz Martine,Charles-Dominique M.,Gérard H.,Hladik Annette,Hladik Claude Marcel,Prévost M.F. Les mammifères frugivores arboricoles nocturnes d’une forêt guyanaise : inter-relations plantes-animaux. In: Revue d'Écologie (La Terre et La Vie), tome 35, n°3, 1981. pp. 341-435.

Published
1981

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