toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Foucaud, J.; Orivel, J.; Loiseau, A.; Delabie, J.H.C.; Jourdan, H.; Konghouleux, D.; Vonshak, M.; Tindo, M.; Mercier, J.L.; Fresneau, D.; Mikissa, J.B.; McGlynn, T.; Mikheyev, A.S.; Oettler, J.; Estoup, A. openurl 
  Title (down) Worldwide invasion by the little fire ant: routes of introduction and eco-evolutionary pathways Type Journal Article
  Year 2010 Publication Evolutionary Applications Abbreviated Journal Evol. Appl.  
  Volume 3 Issue 4 Pages 363-374  
  Keywords biological invasion; introduction routes; parthenogenesis; reproduction system; Wasmannia auropunctata  
  Abstract Biological invasions are generally thought to occur after human aided migration to a new range. However, human activities prior to migration may also play a role. We studied here the evolutionary genetics of introduced populations of the invasive ant Wasmannia auropunctata at a worldwide scale. Using microsatellite markers, we reconstructed the main routes of introduction of the species. We found three main routes of introduction, each of them strongly associated to human history and trading routes. We also demonstrate the overwhelming occurrence of male and female clonality in introduced populations of W. auropunctata, and suggest that this particular reproduction system is under selection in human-modified habitats. Together with previous researches focused on native populations, our results suggest that invasive clonal populations may have evolved within human modified habitats in the native range, and spread further from there. The evolutionarily most parsimonious scenario for the emergence of invasive populations of the little fire ant might thus be a two-step process. The W. auropunctata case illustrates the central role of humans in biological change, not only due to changes in migration patterns, but also in selective pressures over species.  
  Address [Foucaud, Julien; Loiseau, Anne; Jourdan, Herve; Konghouleux, Djoel; Estoup, Arnaud] Montpellier SupAgro, INRA, UMR CBGP, IRD,Cirad, F-34988 Montferrier Sur Lez, France, Email: julien.foucaud@legs.cnrs-gif.fr  
  Corporate Author Thesis  
  Publisher WILEY-BLACKWELL PUBLISHING, INC Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1752-4571 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000278913600004 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 79  
Permanent link to this record
 

 
Author Fortunel, C.; Ruelle, J.; Beauchene, J.; Fine, P.V.A.; Baraloto, C. url  openurl
  Title (down) Wood specific gravity and anatomy of branches and roots in 113 Amazonian rainforest tree species across environmental gradients Type Journal Article
  Year 2014 Publication New Phytologist Abbreviated Journal New Phytol.  
  Volume 202 Issue 1 Pages 79-94  
  Keywords Amazonian forests; Branch; Environmental gradients; Neotropical trees; Root; Wood anatomical traits; Wood density; Wood functions  
  Abstract Wood specific gravity (WSG) is a strong predictor of tree performance across environmental gradients. Yet it remains unclear how anatomical elements linked to different wood functions contribute to variation in WSG in branches and roots across tropical forests. We examined WSG and wood anatomy in white sand, clay terra firme and seasonally flooded forests in French Guiana, spanning broad environmental gradients found throughout Amazonia. We measured 15 traits relating to branches and small woody roots in 113 species representing the 15 most abundant species in each habitat and representative species from seven monophyletic lineages occurring in all habitats. Fiber traits appear to be major determinants of WSG, independent of vessel traits, in branches and roots. Fiber traits and branch and root WSG increased from seasonally flooded species to clay terra firme species and lastly to white sand species. Branch and root wood traits were strongly phylogenetically constrained. Lineages differed in wood design, but exhibited similar variation in wood structure across habitats. We conclude that tropical trees can invest differently in support and transport to respond to environmental conditions. Wind disturbance and drought stress represent significant filters driving tree distribution of Amazonian forests; hence we suggest that biophysical explanations should receive more attention. © 2013 New Phytologist Trust.  
  Address Department of Biology, University of Florida, Gainesville, FL, 32611, United States  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0028646x (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 10 March 2014; Source: Scopus; Coden: Nepha; Language of Original Document: English; Correspondence Address: Fortunel, C.; INRA, UMR Ecologie des Forêts de Guyane, BP 709, Kourou Cedex, 97387, France; email: claire.fortunel@ecofog.gf; Funding Details: DEB-0743103, NSF, National Science Foundation; Funding Details: DEB-0743800, NSF, National Science Foundation Approved no  
  Call Number EcoFoG @ webmaster @ Serial 531  
Permanent link to this record
 

 
Author Thibaut, B.; Denaud, L.; Collet, R.; Marchal, R.; Beauchene, J.; Mothe, F.; Méausoone, P.-J.; Martin, P.; Larricq, P.; Eyma, F. url  openurl
  Title (down) Wood machining with a focus on French research in the last 50 years Type Journal Article
  Year 2016 Publication Annals of Forest Science Abbreviated Journal Annals of Forest Science  
  Volume 73 Issue 1 Pages 163-184  
  Keywords Primary conversion; Secondary processing; Surface quality; Tool wear  
  Abstract Key message: Wood machining is compulsory both for timber separation and the surfacing of wooden objects. The anisotropy, cellular nature and multi-scale level organisation of wood make its cutting complicated to study. During the last 50 years, most of the wood machining subjects were covered by French teams. Context: Woodcutting is a very old technology but scientific research is scarce on the subject. In the last 50 years, much work on basic mechanisms as well as on industrial processes has been done in France. Aims: The specific nature of wood introduces strong differences between wood and metal cutting processes. The paper focuses on French teams’ contributions. Results: The basic aspects of the tool–material interaction for different basic modes in woodcutting are highlighted. In primary conversion such as sawing, veneer cutting or green wood chipping, huge progress comes from automation and the possibility of linking the process to log and product quality through new sensors. In secondary processing, much has been done on the links between the cutting process, surface qualification and the properties of these surfaces for further processing, such as gluing or coating. Tool wear depends on the cutting process, timber quality and species. Trade-offs are required in tool technology and coating technologies may improve tool life. Conclusion: A large amount of knowledge and innovation has come from 50 years of worldwide research effort, with France being particularly active in this period. The transfer of skills from metals cutting industry was often a key, but much is needed to move closer to both metal cutting sector and woodcutting skills among craftsmen. © 2015, INRA and Springer-Verlag France.  
  Address ICA, Université Paul Sabatier Toulouse III, Toulouse, France  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 7 March 2016 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 668  
Permanent link to this record
 

 
Author Lehnebach, R.; Bossu, J.; Va, S.; Morel, H.; Amusant, N.; Nicolini, E.; Beauchene, J. pdf  url
doi  openurl
  Title (down) Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients Type Journal Article
  Year 2019 Publication Forests Abbreviated Journal Forests  
  Volume 10 Issue 2 Pages  
  Keywords French Guiana; Growth-mortality rate; Heartwood; Heartwood extractives; Legumes; Sapwood; Shade tolerance; Tropical tree species; Wood density variations  
  Abstract Increasing or decreasing wood density (WD) from pith to bark is commonly observed in tropical tree species. The different types of WD radial variations, long been considered to depict the diversity of growth and mechanical strategies among forest guilds (heliophilic vs. shade-tolerant), were never analyzed in the light of heartwood (HW) formation. Yet, the additional mass of chemical extractives associated to HW formation increases WD and might affect both WD radial gradient (i.e., the slope of the relation between WD and radial distance) and pattern (i.e., linear or nonlinear variation). We studied 16 legumes species from French Guiana representing a wide diversity of growth strategies and positions on the shade-tolerance continuum. Using WD measurements and available HW extractives content values, we computed WD corrected by the extractive content and analyzed the effect of HW on WD radial gradients and patterns. We also related WD variations to demographic variables, such as sapling growth and mortality rates. Regardless of the position along the shade-tolerance continuum, correcting WD gradients reveals only increasing gradients. We determined three types of corrected WD patterns: (1) the upward curvilinear pattern is a specific feature of heliophilic species, whereas (2) the linear and (3) the downward curvilinear patterns are observed in both mid- and late-successional species. In addition, we found that saplings growth and mortality rates are better correlated with the corrected WD at stem center than with the uncorrected value: taking into account the effect of HW extractives on WD radial variations provides unbiased interpretation of biomass accumulation and tree mechanical strategies. Rather than a specific feature of heliophilic species, the increasing WD gradient is a shared strategy regardless of the shade tolerance habit. Finally, our study stresses to consider the occurrence of HW when using WD.  
  Address Ecology of Guianan Forests (EcoFoG), AgroParisTech, French Agricultural Research and International Cooperation Organization (CIRAD), French National Centre for Scientific Research (CNRS), French National Institute for Agricultural Research (INRA), Université des Antilles, Université de Guyane, Kourou, French Guiana, 97310, France  
  Corporate Author Thesis  
  Publisher Mdpi Ag Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 19994907 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 1 February 2019; Correspondence Address: Lehnebach, R.; Laboratory of Botany and Modeling of Plant Architecture and Vegetation (AMAP), French Agricultural Research and International Cooperation Organization (CIRAD)France; email: romain.lehnebach@cirad.fr; Funding details: Agence Nationale de la Recherche, ANR; Funding details: Federación Española de Enfermedades Raras, FEDER; Funding text 1: The authors thank Grégoire Vincent, Jean-François Molino, and Daniel Sabatier for providing demographical data.). The French Agricultural Research Centre for International Development (CIRAD) funded Romain Lehnebach PhD scholarship. This research project was also funded by the European Regional Development Fund (FEDER, no 31703) and benefits from an 'Investissements d'Avenir' grant managed by the French National Research Agency (CEBA, ref. ANR-10-LABX-25-01).; References: Kollmann, F.F.P., Côté, W.A., (1984) Principles of Wood Science and Technology: I Solid Wood, , Springer: Berlin, Germany; Muller-Landau, H.C., Interspecific and inter-site variation in wood specific gravity of tropical trees (2004) Biotropica, 36, pp. 20-32; Van Gelder, H.A., Poorter, L., Sterck, F.J., Wood mechanics, allometry, and life-history variation in a tropical rain forest tree community (2006) New Phyt, 171, pp. 367-378; Chave, J., Coomes, D., Jansen, S., Lewis, S.L., Swenson, N.G., Zanne, A.E., Towards a worldwide wood economics spectrum (2009) Ecol. Lett, 12, pp. 351-366; Wright, S.J., Kitajima, K., Kraft, N.J.B., Reich, P.B., Wright, I.J., Bunker, D.E., Condit, R., Díaz, S., Functional traits and the growth-mortality trade-off in tropical trees (2010) Ecology, 91, pp. 3664-3674; Niklas, K.J., Influence of tissue density-specific mechanical properties on the scaling of plant height (1993) Ann. Bot, 72, pp. 173-179; Niklas, K.J., Spatz, H.-C., Worldwide correlations of mechanical properties and green wood density (2010) Am. J. Bot, 97, pp. 1587-1594; Pratt, R.B., Jacobsen, A.L., Ewers, F.W., Davis, S.D., Relationships among xylem transport, biomechanics and storage in stems and roots of nine Rhamnaceae species of the California chaparral (2007) New Phyt, 174, pp. 787-798; Lachenbruch, B., Moore, J., Evans, R., Radial Variation in Wood Structure and Function in Woody Plants, and Hypotheses for Its Occurrence (2011) In Size-and Age-Related Changes in Tree Structure and Function, 4, pp. 121-164. , Meinzer, F.C., Lachenbruch, B., Dawson, T.E., Eds.; Springer: Berlin, Germany; Hacke, U.G., Sperry, J.S., Pockman, W.T., Davis, S.D., McCulloh, K.A., Trends in wood density and structure are linked to prevention of xylem implosion by negative pressure (2001) Oecologia, 126, pp. 457-461; Markesteijn, L., Poorter, L., Paz, H., Sack, L., Bongers, F., Ecological differentiation in xylem cavitation resistance is associated with stem and leaf structural traits (2011) Plant Cell Environ, 34, pp. 137-148; Rosner, S., Wood density as a proxy for vulnerability to cavitation: Size matters (2017) J. Plant Hydraul, 4, pp. 1-10; Zanne, A.E., Westoby, M., Falster, D.S., Ackerly, D.D., Loarie, S.R., Arnold, S.E.J., Coomes, D.A., Angiosperm wood structure: Global patterns in vessel anatomy and their relation to wood density and potential conductivity (2010) Am. J. Bot, 97, pp. 207-215; King, D.A., Davies, S.J., Tan, S., Noor, N.S.M., The role of wood density and stem support costs in the growth and mortality of tropical trees (2006) J. Ecol, 94, pp. 670-680; Poorter, L., Wright, S.J., Paz, H., Ackerly, D.D., Condit, R., Ibarra-Manríquez, G., Harms, K.E., Mazer, S.J., Are functional traits good predictors of demographic rates? Evidence from five neotropical forests (2008) Ecology, 89, pp. 1908-1920; Nascimento, H.E.M., Laurance, W.F., Condit, R., Laurance, S.G., D'Angelo, S., Andrade, A.C., Demographic and life-history correlates for Amazonian trees (2005) J. Veg. Sci, 16, pp. 625-634; Meinzer, F.C., Lachenbruch, B., Dawson, T.E., (2011) Size-and Age-Related Changes in Tree Structure and Function, , Springer: Dordrecht, The Netherlands; Wiemann, M., Williamson, G., Extreme radial changes in wood specific gravity in some tropical pioneers (1988) Wood Fiber Sci, 20, pp. 344-349; Rueda, R., Williamson, G.B., Radial and vertical wood specific gravity in Ochroma pyramidale (Cav. ex Lam.) Urb (Bombacaceae) (1992) Biotropica, 24, pp. 512-518; Williamson, G.B., Wiemann, M.C., Geaghan, J.P., Radial wood allocation in Schizolobium parahyba (2012) Am. J. Bot, 99, pp. 1010-1019; Bastin, J.-F., Fayolle, A., Tarelkin, Y., Van den Bulcke, J., de Haulleville, T., Mortier, F., Beeckman, H., Bogaert, J., Wood specific gravity variations and biomass of central African tree species: The simple choice of the outer wood (2015) PLoS ONE, 10; Longuetaud, F., Mothe, F., Santenoise, P., Diop, N., Dlouha, J., Fournier, M., Deleuze, C., Patterns of withinstem variations in wood specific gravity and water content for five temperate tree species (2017) Ann. For. Sci, 74, p. 64; Wiemann, M.C., Williamson, B., Testing a novel method to approximate wood specific gravity of trees (2012) For. Sci, 58, pp. 577-591; Wiemann, M.C., Williamson, G.B., Wood specific gravity gradients in tropical dry and montane rain forest trees (1989) Am. J. Bot, 76, pp. 924-928; Wiemann, M.C., Williamson, G.B., Radial gradients in the specific gravity of wood in some tropical and temperate trees (1989) For. Sci, 35, pp. 197-210; Parolin, P., Radial gradients in wood specific gravity in trees of central amazonian floodplains (2002) IAWA J, 23, pp. 449-457; Abe, H., Kuroda, K., Yamashita, K., Yazaki, K., Noshiro, S., Fujiwara, T., Radial variation of wood density of Quercus spp (Fagaceae) in Japan (2012) Mokuzai Gakkaishi, 58, pp. 329-338; Lei, H., Milota, M.R., Gartner, B.L., Between-and within-tree variation in the anatomy and specific gravity of wood in oregon White Oak (Quercus garryana Dougl.) (1996) IAWA J, 17, pp. 445-461; Woodcock, D., Shier, A., Wood specific gravity and its radial variations: The many ways to make a tree (2002) Trees, 16, pp. 437-443; Hérault, B., Beauchêne, J., Muller, F., Wagner, F., Baraloto, C., Blanc, L., Martin, J.-M., Modeling decay rates of dead wood in a neotropical forest (2010) Oecologia, 164, pp. 243-251; Thibaut, B., Baillères, H., Chanson, B., Fournier-Djimbi, M., Plantations d'arbres à croissance rapide et qualité des produits forestiers sous les tropiques (1997) Bois For. Trop, 252, pp. 49-54; Nock, C.A., Geihofer, D., Grabner, M., Baker, P.J., Bunyavejchewin, S., Hietz, P., Wood density and its radial variation in six canopy tree species differing in shade-tolerance in western Thailand (2009) Ann. Bot, 104, pp. 297-306; Hietz, P., Valencia, R., Joseph Wright, S., Strong radial variation in wood density follows a uniform pattern in two neotropical rain forests (2013) Funct. Ecol, 27, pp. 684-692; Osazuwa-Peters, O.L., Wright, S.J., Zanne, A.E., Radial variation in wood specific gravity of tropical tree species differing in growth-mortality strategies (2014) Am. J. Bot, 101, pp. 803-811; Plourde, B.T., Boukili, V.K., Chazdon, R.L., Radial changes in wood specific gravity of tropical trees: Interand intraspecific variation during secondary succession (2015) Funct. Ecol, 29, pp. 111-120; Hillis, W.E., Secondary Changes in Wood (1977) In The Structure, Biosynthesis, and Degradation of Wood, 11, pp. 247-309. , Loewus, F., Runeckles, V.C., Eds.; Plenum Press: New York, NY, USA; Hillis, W.E., (1987) Heartwood and Tree Exudates, , Springer-Verlag: Berlin, Germany; Yang, K.C., (1990) The Ageing Process of Sapwood Ray Parenchyma Cells in Four Woody Species, , Ph.D. Thesis, University of British Columbia, Vancouver, BC, Canada; Royer, M., Stien, D., Beauchêne, J., Herbette, G., McLean, J.P., Thibaut, A., Thibaut, B., Extractives of the tropical wood wallaba (Eperua falcata Aubl.) as natural anti-swelling agents (2010) Holzforschung, 64, pp. 211-215; Amusant, N., Moretti, C., Richard, B., Prost, E., Nuzillard, J.M., Thévenon, M.F., Chemical compounds from Eperua falcata and Eperua grandiflora heartwood and their biological activities against wood destroying fungus (Coriolus versicolor) (2006) Holz Roh Werkst, 65, pp. 23-28; Lehnebach, R., (2015) Variabilité Ontogénique du Profil Ligneux chez les Légumineuses de Guyane Française, , Ph.D. Thesis, Université de Montpellier, Montpellier, France; Sabatier, D., Prévost, M.F., Quelques données sur la composition floristique, et la diversite des peuplements forestiers de guyane francaise (1990) Bois For. Trop, 219, pp. 31-55; Ter Steege, H., Pitman, N.C.A., Phillips, O.L., Chave, J., Sabatier, D., Duque, A., Molino, J.-F., Castellanos, H., Continental-scale patterns of canopy tree composition and function across Amazonia (2006) Nature, 443, pp. 444-447; Ter Steege, H., Vaessen, R.W., Cárdenas-López, D., Sabatier, D., Antonelli, A., de Oliveira, S.M., Pitman, N.C.A., Salomão, R.P., The discovery of the Amazonian tree flora with an updated checklist of all known tree taxa (2016) Sci. Rep, 6, p. 29549; Woodcock, D.W., Shier, A.D., Does canopy position affect wood specific gravity in temperate forest trees? (2003) Ann. Bot, 91, pp. 529-537; Osazuwa-Peters, O.L., Wright, S.J., Zanne, A.E., Linking wood traits to vital rates in tropical rainforest trees: Insights from comparing sapling and adult wood (2017) Am. J. Bot, 104, pp. 1464-1473; Favrichon, V., Classification des espèces arborées en groupes fonctionnels en vue de la réalisation d'un modèle de dynamique de peuplement en forêt guyanaise (1994) Rev. Ecol. Terre Vie, 49, pp. 379-403; (2016) R: A Language and Environment for Statistical Computing, , R Foundation for Statistical Computing: Vienna, Austria; Taylor, A.M., Gartner, B.L., Morrell, J.J., Heartwood formation and natural durability-A review (2002) Wood Fiber Sci, 34, pp. 587-611; Molino, J.F., Sabatier, D., Tree diversity in tropical rain forests: A validation of the intermediate disturbance hypothesis (2001) Science, 294, pp. 1702-1704; Vincent, G., Molino, J.-F., Marescot, L., Barkaoui, K., Sabatier, D., Freycon, V., Roelens, J.B., The relative importance of dispersal limitation and habitat preference in shaping spatial distribution of saplings in a tropical moist forest: A case study along a combination of hydromorphic and canopy disturbance gradients (2011) Ann. For. Sci, 68, pp. 357-370; Pinheiro, J., Bates, D., (2000) Mixed-Effects Models in S and S-PLUS, , Springer-Verlag: New York, NY, USA; Hurvich, C.M., Tsai, C.-L., Bias of the corrected AIC criterion for underfitted regression and time series models (1991) Biometrika, 78, pp. 499-509; Mazerolle, M.J., AICcmodavg: Model Selection and Multimodel Inference Based on (Q)AIC(c), , https://cran.r-project.org/package=AICcmodavg, R Package Version 2.1-0. 2016 (accessed on 1 December 2018); Harrel, F.E.J., Hmisc: Harrell Miscellaneous, , https://CRAN.R-project.org/package=Hmisc, R Package Version 3.14-3. 2016 (accessed on 1 December 2018); De Mendiburu, F., (2016) Agricolae: Statistical Procedures for Agricultural Research, , https://CRAN.R-project.org/package=agricolae, (accessed on 1 December 2018). R Package Version 1.2-4; Morel, H., Lehnebach, R., Cigna, J., Ruelle, J., Nicolini, E., Beauchêne, J., Basic wood density variations of Parkia velutina Benoist, a long-lived heliophilic Neotropical rainforest tree (2018) Bois For. Trop, 335, pp. 59-69; Bossu, J., (2015) Potentiel de Bagassa guianensis et Cordia alliodora pour la Plantation en Zone Tropicale: Description d'une Stratégie de Croissance Optimale Alliant Vitesse de Croissance et Qualité du Bois, , Ph.D. Thesis, Université de Guyane, Kourou, French Guiana; Oldeman, R.A.A., (1974) L'Architecture de la Forêt Guyanaise, , Office de la Recherche Scientifique et Technique Outre-Mer: Paris, France; Anten, N.P.R., Schieving, F., The role of wood mass density and mechanical constraints in the economy of tree architecture (2010) Am. Nat, 175, p. 11; Larjavaara, M., Muller-Landau, H.C., Rethinking the value of high wood density (2010) Funct. Ecol, 24, pp. 701-705; Lachenbruch, B., McCulloh, K.A., Traits, properties, and performance: How woody plants combine hydraulic and mechanical functions in a cell, tissue, or whole plant (2014) New Phyt, 204, pp. 747-764; Chapotin, S.M., Razanameharizaka, J.H., Holbrook, N.M., A biomechanical perspective on the role of large stem volume and high water content in baobab trees (Adansonia spp.; Bombacaceae) (2006) Am. J. Bot, 93, pp. 1251-1264; Kuo, M.-L., Arganbright, D.G., Cellular distribution of extractives in redwood and incense cedar-Part II Microscopic observation of the location of cell wall and cell cavity extractives (1980) Holzforschung, 34, pp. 41-47; Olson, J.R., Carpenter, S.B., Specific gravity, fibre length, and extractive content of young Paulownia (1985) Wood Fiber Sci, 17, pp. 428-438; Stringer, J.W., Olson, J.R., Radial and vertical variations in stem properties of juvenile black locust (Robinia pseudoacacia) (1987) Wood Fiber Sci, 19, pp. 59-67; Gierlinger, N., Wimmer, R., Radial distribution of heartwood extractives and lignin in mature European larch (2004) Wood Fiber Sci, 36, pp. 387-394; Bossu, J., Beauchêne, J., Estevez, Y., Duplais, C., Clair, B., New insights on wood dimensional stability influenced by secondary metabolites: The case of a fast-growing tropical species Bagassa guianensis Aubl (2016) PLoS ONE, 11; Amusant, N., Beauchene, J., Fournier, M., Janin, G., Thevenon, M.-F., Decay resistance in Dicorynia guianensis Amsh.: Analysis of inter-tree and intra-tree variability and relations with wood colour (2004) Ann. For. Sci, 61, pp. 373-380; Hillis, W.E., Distribution, properties and formation of some wood extractives (1971) Wood Sci. Tech, 5, pp. 272-289; Taylor, A., Freitag, C., Cadot, E., Morrell, J., Potential of near infrared spectroscopy to assess hot-watersoluble extractive content and decay resistance of a tropical hardwood (2008) Holz Roh Werkst, 66, pp. 107-111; Amusant, N., Nigg, M., Thibaut, B., Beauchene, J., Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacensis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild (2014) Int. Biodeterior. Biodegrad, 94, pp. 103-108; Falster, D.S., Westoby, M., Tradeoffs between height growth rate, stem persistence and maximum height among plant species in a post-fire succession (2005) Oikos, 111, pp. 57-66; Panshin, A.J., de Zeeuw, C., (1980) Textbook of Wood Technology: Structure, Identification, Properties, and Uses of the Commercial Woods of the United States and Canada, , McGraw-Hill: New York, NY, USA; Hernández, R.E., Influence of accessory substances, wood density and interlocked grain on the compressive properties of hardwoods (2007) Wood Sci. Tech, 41, pp. 249-265; Gherardi Hein, P.R., Tarcísio Lima, J., Relationships between microfibril angle, modulus of elasticity and compressive strength in Eucalyptus wood (2012) Maderas. Cienc. Tecnol, 14, pp. 267-274; Cave, I.D., Walker, J.C.F., Stiffness of wood in fast-grown plantation softwoods: Theinfluence of microfibril angle (1994) For. Prod. J, 44, pp. 43-48; Bossu, J., Lehnebach, R., Corn, S., Regazzi, A., Beauchêne, J., Clair, B., Interlocked grain and density patterns in Bagassa guianensis: Changes with ontogeny and mechanical consequences for trees (2018) Trees, 32, pp. 1643-1655; Hart, J., Johnson, K., Production of decay-resistant sapwood in response to injury (1970) Wood Sci. Tech, 4, pp. 267-272; Boddy, L., Microenvironmental Aspects of Xylem Defenses to Wood Decay Fungi (1992) Defense Mechanisms of Woody Plants Against Fungi, pp. 96-132. , Blanchette, R.A., Biggs, A.R., Eds.; Springer: Berlin, Germany; Roszaini, K., Hale, M.D., Salmiah, U., In-vitro decay resistance of 12 malaysian broadleaf hardwood trees as a function of wood density and extractives compounds (2016) J. Trop. For. Sci, 28, pp. 533-540; Stamm, A.J., Density of wood substance, adsorption by wood, and permeability of wood (1929) J. Phys. Chem, 33, pp. 398-414 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 858  
Permanent link to this record
 

 
Author Sarmiento, C.; Patino, S.; Paine, C.E.T.; Beauchene, J.; Thibaut, A.; Baraloto, C. openurl 
  Title (down) Within-Individual Variation of Trunk and Branch Xylem Density in Tropical Trees Type Journal Article
  Year 2011 Publication American Journal of Botany Abbreviated Journal Am. J. Bot.  
  Volume 98 Issue 1 Pages 140-149  
  Keywords branch xylem density; French Guiana; functional trait; tropical trees; trunk xylem density; wood economics  
  Abstract Premise of the study : Wood density correlates with mechanical and physiological strategies of trees and is important for estimating global carbon stocks. Nonetheless, the relationship between branch and trunk xylem density has been poorly explored in neotropical trees. Here, we examine this relationship in trees from French Guiana and its variation among different families and sites, to improve the understanding of wood density in neotropical forests. Methods : Trunk and branch xylem densities were measured for 1909 trees in seven sites across French Guiana. A major-axis fit was performed to explore their general allometric relationship and its variation among different families and sites. Key results : Trunk xylem and branch xylem densities were significantly positively correlated, and their relationship explained 47% of the total variance. Trunk xylem was on average 9% denser than branch xylem. Family-level differences and interactions between family and site accounted for more than 40% of the total variance, whereas differences among sites explained little variation. Conclusions : Variation in xylem density within individual trees can be substantial, and the relationship between branch xylem and trunk xylem densities varies considerably among families and sites. As such, whole-tree biomass estimates based on non-destructive branch sampling should correct for both taxonomic and environmental factors. Furthermore, detailed estimates of the vertical distribution of wood density within individual trees are needed to determine the extent to which relying solely upon measures of trunk wood density may cause carbon stocks in tropical forests to be overestimated.  
  Address [Sarmiento, Carolina; Patino, Sandra; Baraloto, Christopher] INRA, UMR Ecol Forets Guyane, Kourou 97310, French Guiana, Email: carolinasar@gmail.com  
  Corporate Author Thesis  
  Publisher BOTANICAL SOC AMER INC Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0002-9122 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000285747900019 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 290  
Permanent link to this record
 

 
Author Rey, O.; Estoup, A.; Vonshak, M.; Loiseau, A.; Blanchet, S.; Calcaterra, L.; Chifflet, L.; Rossi, J.-P.; Kergoat, G.J.; Foucaud, J.; Orivel, J.; Leponce, M.; Schultz, T.; Facon, B. url  openurl
  Title (down) Where do adaptive shifts occur during invasion? A multidisciplinary approach to unravelling cold adaptation in a tropical ant species invading the Mediterranean area Type Journal Article
  Year 2012 Publication Ecology Letters Abbreviated Journal Ecol. Lett.  
  Volume 15 Issue 11 Pages 1266-1275  
  Keywords Adaptation; Biological invasion; Climatic niche shift; Cold temperature; Mediterranean zone; Wasmannia auropunctata  
  Abstract Evolution may improve the invasiveness of populations, but it often remains unclear whether key adaptation events occur after introduction into the recipient habitat (i.e. post-introduction adaptation scenario), or before introduction within the native range (i.e. prior-adaptation scenario) or at a primary site of invasion (i.e. bridgehead scenario). We used a multidisciplinary approach to determine which of these three scenarios underlies the invasion of the tropical ant Wasmannia auropunctata in a Mediterranean region (i.e. Israel). Species distribution models (SDM), phylogeographical analyses at a broad geographical scale and laboratory experiments on appropriate native and invasive populations indicated that Israeli populations followed an invasion scenario in which adaptation to cold occurred at the southern limit of the native range before dispersal to Israel. We discuss the usefulness of combining SDM, genetic and experimental approaches for unambiguous determination of eco-evolutionary invasion scenarios. © 2012 Blackwell Publishing Ltd/CNRS.  
  Address Smithsonian Institute, Department of Entomology, Natural Museum of Natural History, Washington, DC, 20013, United States  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1461023x (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 19 October 2012; Source: Scopus; Coden: Eclef; doi: 10.1111/j.1461-0248.2012.01849.x; Language of Original Document: English; Correspondence Address: Rey, O.; INRA, UMR1062, CBGP, Montpellier, France; email: olivier.rey.1@gmail.com Approved no  
  Call Number EcoFoG @ webmaster @ Serial 441  
Permanent link to this record
 

 
Author Dejean, A.; Corbara, B.; Azémar, F.; Carpenter, J.M. url  openurl
  Title (down) When attempts at robbing prey turn fatal Type Journal Article
  Year 2012 Publication Naturwissenschaften Abbreviated Journal Naturwissenschaften  
  Volume 99 Issue 7 Pages 579-582  
  Keywords Ant predation; Azteca andreae; Cleptobiosis; Flies and dung beetles; Myrmecophyte; Reduviidae; Socialwasps; Stinglessbees  
  Abstract Because group-hunting arboreal ants spread-eagle insect prey for a long time before retrieving them, these prey can be coveted by predatory flying insects. Yet, attempting to rob these prey is risky if the ant species is also an effective predator. Here, we show that trying to rob prey from Azteca andreae workers is a fatal error as 268 out of 276 potential cleptobionts (97.1 %) were captured in turn. The ant workers hunt in a group and use the “Velcro®” principle to cling firmly to the leaves of their host tree, permitting them to capture very large prey. Exceptions were one social wasp, plus some Trigona spp. workers and flies that landed directly on the prey and were able to take off immediately when attacked. We conclude that in this situation, previously captured prey attract potential cleptobionts that are captured in turn in most of the cases. © Springer-Verlag 2012.  
  Address Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, United States  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 00281042 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 30 July 2012; Source: Scopus; Coden: Natwa; doi: 10.1007/s00114-012-0929-x; Language of Original Document: English; Correspondence Address: Dejean, A.; CNRS, Écologie des Forêts de Guyane (UMR-CNRS 8172), Campus agronomique, BP 316, 97379 Kourou cedex, France; email: alain.dejean@wanadoo.fr Approved no  
  Call Number EcoFoG @ webmaster @ Serial 417  
Permanent link to this record
 

 
Author Menzel, F.; Orivel, J.; Kaltenpoth, M.; Schmitt, T. url  openurl
  Title (down) What makes you a potential partner? Insights from convergently evolved ant-ant symbioses Type Journal Article
  Year 2014 Publication Chemoecology Abbreviated Journal Chemoecology  
  Volume 24 Issue 3 Pages 105-119  
  Keywords Aggression; Coevolution; Cuticular hydrocarbons; Formicidae; Interspecific association; Parabiosis; Recognition cues  
  Abstract Mutualistic, commensalistic or parasitic interactions are unevenly distributed across the animals and plants: in certain taxa, such interspecific associations evolved more often than in others. Within the ants, associations between species of the genera Camponotus and Crematogaster evolved repeatedly and include trail-sharing associations, where two species share foraging trails, and parabioses, where two species share a nest without aggression. Camponotus and Crematogaster may possess life-history traits that favour the evolution of associations. To identify which traits are affected by the association, we investigated a neotropical parabiosis of Ca. femoratus and Cr. levior and compared it to a paleotropical parabiosis and a trail-sharing association. The two neotropical species showed altered cuticular hydrocarbon profiles compared to non-parabiotic species accompanied by low levels of interspecific aggression. Both species occurred in two chemically distinct types. Camponotus followed artificial trails of Crematogaster pheromones, but not vice versa. The above traits were also found in the paleotropical parabiosis, and the trail-following results match those of the trail-sharing association. In contrast to paleotropical parabioses, however, Camponotus was dominant, had a high foraging activity and often fought against Crematogaster over food resources. We suggest three potential preadaptations for parabiosis. First, Crematogaster uses molecules as trail pheromones, which can be perceived by Camponotus, too. Second, nests of Camponotus are an important benefit to Crematogaster and may create a selection pressure for the latter to tolerate Camponotus. Third, there are parallel, but unusual, shifts in cuticular hydrocarbon profiles between neotropics and paleotropics, and between Camponotus and Crematogaster. © 2014 Springer Basel.  
  Address Department of Animal Ecology and Tropical Biology Biocentre, University of Würzburg, Am Hubland, 97074 Würzburg, Germany  
  Corporate Author Thesis  
  Publisher Birkhauser Verlag AG Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 09377409 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 10 June 2014; Coden: Chmoe; Correspondence Address: Menzel, F.; Department of Evolutionary Biology, Institute of Zoology, University of Mainz, Johannes-von-Müller-Weg 6, 55099 Mainz, Germany; email: menzelf@uni-mainz.de Approved no  
  Call Number EcoFoG @ webmaster @ Serial 547  
Permanent link to this record
 

 
Author Aguilos, M.; Hérault, B.; Burban, B.; Wagner, F.; Bonal, D. url  doi
openurl 
  Title (down) What drives long-term variations in carbon flux and balance in a tropical rainforest in French Guiana? Type Journal Article
  Year 2018 Publication Agricultural and Forest Meteorology Abbreviated Journal  
  Volume 253–254 Issue Pages 114-123  
  Keywords Tropical rainforest; Nee; Gpp; Ecosystem respiration; Radiation; Drought  
  Abstract A thorough understanding of how tropical forests respond to climate is important to improve ecosystem process models and to reduce uncertainties in current and future global carbon balance calculations. The Amazon rainforest, a major contributor to the global carbon cycle, is subject to strong intra- and interannual variations in climate conditions. Understanding their effect on carbon fluxes between the ecosystem and the atmosphere and on the resulting carbon balance is still incomplete. We examined the long-term (over a 12-year period; 2004–2015) variations in gross primary productivity (GPP), ecosystem respiration (RE) and net ecosystem exchange (NEE) in a tropical rainforest in French Guiana and identified key climatic drivers influencing the changes. The study period was characterized by strong differences in climatic conditions among years, particularly differences in the intensity of the dry and wet seasons, as well as differences in annual carbon fluxes and balance. Annual average GPP varied from 3384.9?g?C?m-2?yr?1 (95% CI [3320.7, 3445.9]) to 4061.2?g?C?m-2?yr?1 (95% CI [3980.1, 4145.0]). RE varied even more than GPP, with a difference of 933.1?C?m-2?yr?1 between the minimum (3020.6?g?C?m-2?yr?1; 95% CI [2889.4, 3051.3]) and maximum (3953.7?g?C?m-2?yr?1; 95% CI [3887.6, 4019.6]) values. Although NEE showed large interannual variability (nine-fold), from ?65.6?g?C?m-2?yr?1 (95% CI [?4.4, ?126.0]) to ?590.5?g?C?m-2 yr?1 (95% CI [?532.3, ?651.6]), the forest remained a carbon sink over the 12-year period. A combination of global radiation (Rg), relative extractable water (REW) and soil temperature (Ts) explained 51% of the daily variations for GPP, 30% for RE and 39% for NEE. Global radiation was always the best predictor of these variations, but soil water content and temperature did also influence carbon fluxes and balance. Seasonally, Rg was the major controlling factor for GPP, RE and NEE during the wet season. During the dry season, variations in carbon fluxes and balance were poorly explained by climate factors. Yet, REW was the key driver of variations in NEE during the dry season. This study highlights that, over the long-term, carbon fluxes and balance in such tropical rainforest ecosystems are largely controlled by both radiation and water limitation. Even though variations in Rg have a greater impact on these fluxes, water limitation during seasonal droughts is enough to reduce ecosystem productivity, respiration and carbon uptake. The reduced precipitation expected in tropical rainforest areas under future climatic conditions will therefore strongly influence carbon fluxes and carbon uptake. This study also highlights the importance for land surface or dynamic global vegetation models to consider the main drivers of carbon fluxes and balance separately for dry and wet seasons.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0168-1923 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number EcoFoG @ webmaster @ Serial 792  
Permanent link to this record
 

 
Author Leroy, C.; Corbara, B.; Dezerald, O.; Trzcinski, M.K.; Carrias, J.-F.; Dejean, A.; Céréghino, R. url  doi
openurl 
  Title (down) What drives detrital decomposition in neotropical tank bromeliads? Type Journal Article
  Year 2017 Publication Hydrobiologia Abbreviated Journal Hydrobiologia  
  Volume 802 Issue 1 Pages 85-95  
  Keywords Context dependency; Ecosystem function; Food webs; Leaf litter; Phytotelmata; Rainforest  
  Abstract Decomposition experiments that control leaf litter species across environments help to disentangle the roles of litter traits and consumer diversity, but once we account for leaf litter effects, they tell us little about the variance in decomposition explained by shifts in environmental conditions versus food-web structure. We evaluated how habitat, food-web structure, leaf litter species, and the interactions between these factors affect litter mass loss in a neotropical ecosystem. We used water-filled bromeliads to conduct a reciprocal transplant experiment of two litter species between an open and a forested habitat in French Guiana, and coarse- and fine-mesh enclosures embedded within bromeliads to exclude invertebrates or allow them to colonize leaf litter disks. Soft Melastomataceae leaves decomposed faster in their home habitat, whereas tough Eperua leaves decomposed equally in both habitats. Bacterial densities did not differ significantly between the two habitats. Significant shifts in the identity and biomass of invertebrate detritivores across habitats did not generate differences in leaf litter decomposition, which was essentially microbial. Despite the obvious effects of habitats on food-web structure, ecosystem processes are not necessarily affected. Our results pose the question of when does environmental determinism matter for ecosystem functions, and when does it not. © 2017, Springer International Publishing Switzerland.  
  Address IRD – UMR AMAP, Campus agronomique, BP 316, Kourou Cedex, France  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 18 December 2017 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 775  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: