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Author Prevost-Boure, N.C.; Ngao, J.; Berveiller, D.; Bonal, D.; Damesin, C.; Dufrene, E.; Lata, J.C.; Le Dantec, V.; Longdoz, B.; Ponton, S.; Soudani, K.; Epron, D. openurl 
  Title Root exclusion through trenching does not affect the isotopic composition of soil CO2 efflux Type Journal Article
  Year (up) 2009 Publication Plant and Soil Abbreviated Journal Plant Soil  
  Volume 319 Issue 1-2 Pages 1-13  
  Keywords Stable carbon isotopes; Natural abundance; Soil respiration; Trenched plot; Rainforest; Temperate forest  
  Abstract Disentangling the autotrophic and heterotrophic components of soil CO2 efflux is critical to understanding the role of soil system in terrestrial carbon (C) cycling. In this study, we combined a stable C-isotope natural abundance approach with the trenched plot method to determine if root exclusion significantly affected the isotopic composition (delta C-13) of soil CO2 efflux (R-S). This study was performed in different forest ecosystems: a tropical rainforest and two temperate broadleaved forests, where trenched plots had previously been installed. At each site, R-S and its delta C-13 (delta C-13(Rs)) tended to be lower in trenched plots than in control plots. Contrary to R-S, delta C-13(Rs) differences were not significant. This observation is consistent with the small differences in delta C-13 measured on organic matter from root, litter and soil. The lack of an effect on delta C-13(Rs) by root exclusion could be from the small difference in delta C-13 between autotrophic and heterotrophic soil respirations, but further investigations are needed because of potential artefacts associated with the root exclusion technique.  
  Address [Prevost-Boure, Nicolas Chemidlin; Berveiller, Daniel; Damesin, Claire; Dufrene, Eric; Lata, Jean-Christophe; Soudani, Kamel] Univ Paris Sud, Lab Ecol Systemat & Evolut, AgroParisTech, CNRS,UMR 8079, F-75231 Paris, France, Email: nicolas.chemidlin-prevost-boure@u-psud.fr  
  Corporate Author Thesis  
  Publisher SPRINGER Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0032-079X ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000266143400001 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 203  
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Author Kiaer, L.P.; Felber, F.; Flavell, A.; Guadagnuolo, R.; Guiatti, D.; Hauser, T.P.; Olivieri, A.M.; Scotti, I.; Syed, N.; Vischi, M.; van de Wiel, C.; Jorgensen, R.B. openurl 
  Title Spontaneous gene flow and population structure in wild and cultivated chicory, Cichorium intybus L Type Journal Article
  Year (up) 2009 Publication Genetic Resources and Crop Evolution Abbreviated Journal Genet. Resour. Crop Evol.  
  Volume 56 Issue 3 Pages 405-419  
  Keywords AFLP; GM co-existence; Gene dispersal; Introgression; Risk assessment; SSAP  
  Abstract Spontaneous gene flow between wild and cultivated chicory, Cichorium intybus L., may have implications for the genetic structure and evolution of populations and varieties. One aspect of this crop-wild gene flow is the dispersal of transgenes from genetically modified varieties, e.g. gene flow from GM chicory to natural chicory could have unwanted consequences. With the purpose to identify and quantify crop-wild gene flow in chicory, we analysed introgression in 19 wild chicory populations and 16 accessions of chicory varieties and landraces distributed across Northern, Central and Mediterranean Europe. The analysis used 281 AFLP markers and 75 SSAP markers giving a total of 356 polymorphic markers. Results from model based assignments with the program STRUCTURE indicated many incidents of recent gene flow. Gene flow was observed both between cultivars and wild populations, between landraces and wild populations, between different wild populations as well as between cultivars. Population structure visualized by distance-based clustering showed a North-South geographical structuring of the wild populations, and a general grouping of the cultivars corresponding to known origin. The results indicated, however, that the structuring between the two groups of wild and cultivated types was weak. As crop and wild recipients are genetically close and genes are transferred between the two types rather frequently, focus on mitigating crop-wild gene flow should be increased, before transgenic varieties are cultivated openly.  
  Address [Kiaer, L. P.; Jorgensen, R. B.] DTU, Riso Natl Lab, Biosyst Dept, DK-4000 Roskilde, Denmark, Email: rikke.bagger.jorgensen@risoe.dk  
  Corporate Author Thesis  
  Publisher SPRINGER Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0925-9864 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000264835300011 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 204  
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Author Marchal, R.; Mothe, F.; Denaud, L.E.; Thibaut, B.; Bleron, L. openurl 
  Title Cutting forces in wood machining – Basics and applications in industrial processes. A review COST Action E35 2004-2008: Wood machining – micromechanics and fracture Type Journal Article
  Year (up) 2009 Publication Holzforschung Abbreviated Journal Holzforschung  
  Volume 63 Issue 2 Pages 157-167  
  Keywords cutting forces; online control; peeling process; physico-mechanical model; sound; vibrations; wood industry; wood machining  
  Abstract The data available in the literature concerning wood cutting forces permits to build models or to simulate the main wood machining processes ( milling, sawing, peeling, etc.). This approach contributes to a better understanding of formation of wood surfaces and chips and the data may be helpful to optimise cutting geometry, reduce tool wear, improve tool material, and to size tool-machines. The models may also be useful for industrial application in two ways: ( 1) providing data to optimise the settings for a given operation ( batch approach), and ( 2) building predictive models that could be the basis of an online control system for the machining processes ( interactive approach). A prerequisite for this is that numerous machining tests on different wood materials are performed based on experiences with different kind of tools and experimental devices. With a focus on potential industrial applications, the emphasis of this review was on the wood peeling process, which is a very demanding special case of wood cutting. Although not so many industrial machines are equipped with expensive force sensors, there is a lot of high quality information available about cutting forces which may be useful to improve the scientific or technological knowledge in wood machining. Alternative parameters, such as vibration or sound measurements, appear to be promising substitutes in the praxis, particularly to feed online control systems of any wood cutting process.  
  Address [Marchal, Remy; Bleron, Laurent] Arts & Metiers ParisTech, LABOMAP, F-71250 Cluny, France, Email: remy.marchal@cluny.ensam.fr  
  Corporate Author Thesis  
  Publisher WALTER DE GRUYTER & CO Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0018-3830 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000263932200006 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 205  
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Author Leroy, C.; Gueroult, M.; Wahyuni, N.S.; Escoute, J.; Cereghino, R.; Sabatier, S.; Auclair, D. openurl 
  Title Morphogenetic trends in the morphological, optical and biochemical features of phyllodes in Acacia mangium Willd (Mimosaceae) Type Journal Article
  Year (up) 2009 Publication Trees-Structure and Function Abbreviated Journal Trees-Struct. Funct.  
  Volume 23 Issue 1 Pages 37-49  
  Keywords Chlorophyll; Phyllode morphology; Phyllode anatomy; Nitrogen; Optical properties; Plant architecture  
  Abstract Endogenous variations in the annual growth of trees suggest that similar trends would occur in phyllodes. In comparison to leaves, the characteristics of phyllodes are less well known, hence this study examines the effects of architectural position and age of tree on the phyllodes of Acacia mangium. Phyllodes were investigated on 1-, 2-, and 3-year-old trees from three axis positions within the crown. We focused on the morphological, optical and biochemical traits of the phyllodes. The increase in phyllode area and lamina thickness is more pronounced in the older trees. Leaf mass area (LMA), stomatal density, nitrogen and chlorophyll content increase with tree age. The values of these characteristics decrease from the main stem to the lower branches for the older trees. Phyllode light absorptance increased with tree age whereas reflectance was higher for the upper position compared to the lower position within the crown. Carotenoid content and chlorophyll a/b ratio were higher for the younger phyllodes of younger trees. Increasing tree size induced modifications in the phyllode characteristics which are influenced by both morphogenetic and light gradients within the crown. This study demonstrated pronounced changes in terms of morphological and functional indicators of photosynthetic capacity in relation to phyllode position within the crown and to tree age. These morphogenetic effects on the phyllode characteristics should be taken into account in studies on phenotypic plasticity.  
  Address [Sabatier, Sylvie] CIRAD, UMR AMAP BotAnique & BioinforMat Architecture, F-34398 Montpellier 5, France, Email: sylvie-annabel.sabatier@cirad.fr  
  Corporate Author Thesis  
  Publisher SPRINGER Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0931-1890 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000262538700005 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 206  
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Author Gond, V.; Guitet, S. openurl 
  Title Remote Sensing in Post-Logging Diagnoses for Forest Management in French Guiana Type Journal Article
  Year (up) 2009 Publication Bois et Forets des Tropiques Abbreviated Journal Bois For. Trop.  
  Volume 63 Issue 299 Pages 5-13  
  Keywords selective logging; logging impact inspections; French Guiana; remote sensing; forest management  
  Abstract This study is part of the activities carried out to monitor tow-impact logging operations in humid tropical forests. The sustainability of these activities is highly dependent on the scale of logging damage, and managers therefore need to carry out effective checks on the quality of forestry work. In this study, remote sensing was used to track the extension of logging operations and to assess damage, through images acquired during and after logging in each parcel. Analysis of the high-resolution images (10 m) clearly identifies logged-over clearings and some skidding tracks, allowing assessments of gaps opening up in the canopy. Several parcels were monitored in this French Guiana study. A simple diagnostic procedure was established for each parcel to assess logging intensity and identify new logging tracks and timber losses. The remote sensing toot thus helps to make more accurate assessments of logging quality and to draw relevant conclusions for the logging company. The study has demonstrated the usefulness of remote sensing to identify damage after logging. The quality of restitution of the damage was validated by means of a database on the logging terrain and through field missions. This post-logging inspection tool can now be automated for fully operational use by forest managers.  
  Address [Gond, Valery] Univ Laval, Fac Foresterie, Umr Ecofog Guyane francaise, Cirad,UR 36, Quebec City, PQ G1V OA6, Canada  
  Corporate Author Thesis  
  Publisher CIRAD-CENTRE COOPERATION INT RECHERCHE AGRONOMIQUE POUR Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0006-579X ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000266156700001 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 280  
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Author Petillon, J.; Montaigne, W.; Renault, D. openurl 
  Title Hypoxic coma as a strategy to survive inundation in a salt-marsh inhabiting spider Type Journal Article
  Year (up) 2009 Publication Biology Letters Abbreviated Journal Biol. Lett.  
  Volume 5 Issue 4 Pages 442-445  
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  Abstract  
  Address  
  Corporate Author Thesis  
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  Series Volume Series Issue Edition  
  ISSN 1744-9561 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000267881700002 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 288  
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Author Martos, F.; Dulormne, M.; Pailler, T.; Bonfante, P.; Faccio, A.; Fournel, J.; Dubois, M.-P.; Selosse, M.-A. doi  openurl
  Title Independent recruitment of saprotrophic fungi as mycorrhizal partners by tropical achlorophyllous orchids Type Journal Article
  Year (up) 2009 Publication New Phytologist Abbreviated Journal New Phytologist  
  Volume 184 Issue 3 Pages 668-681  
  Keywords Mycoheterotrophy; Mycorrhizas; Orchids; Rainforests; Saprotrophic fungi; Stable isotopes  
  Abstract Mycoheterotrophic orchids have adapted to shaded forest understory by shifting to achlorophylly and receiving carbon from their mycorrhizal fungi. In temperate forests, they associate in a highly specific way with fungi forming ectomycorrhizas on nearby trees, and exploiting tree photosynthates. However, many rainforests lack ectomycorrhizal fungi, and there is evidence that some tropical Asiatic species associate with saprotrophic fungi. To investigate this in different geographic and phylogenetic contexts, we identified the mycorrhizal fungi supporting two tropical mycoheterotrophic orchids from Mascarene (Indian Ocean) and Caribbean islands. We tested their possible carbon sources by measuring natural nitrogen (15N) and carbon (13C) abundances. Saprotrophic basidiomycetes were found: Gastrodia similis associates with a wood-decaying Resinicium (Hymenochaetales); Wullschlaegelia aphylla associates with both litter-decaying Gymnopus and Mycena species, whose rhizomorphs link orchid roots to leaf litter. The 15N and 13C abundances make plausible food chains from dead wood to G. similis and from dead leaves to W. aphylla. We propose that temperature and moisture in rainforests, but not in most temperate forests, may favour sufficient saprotrophic activity to support development of mycoheterotrophs. By enlarging the spectrum of mycorrhizal fungi and the level of specificity in mycoheterotrophic orchids, this study provides new insights on orchid and mycorrhizal biology in the tropics. © 2009 New Phytologist.  
  Address Dipartimento di Biologia Vegetale dell'Università, Istituto per la Protezione Delle Piante – CNR, Viale Mattioli 25, I-10125 Torino, Italy  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
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  Notes Cited By :65; Export Date: 7 February 2017 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 728  
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Author Paine, C.E.T.; Stahl, C.; Courtois, E.A.; Patino, S.; Sarmiento, C.; Baraloto, C. openurl 
  Title Functional explanations for variation in bark thickness in tropical rain forest trees Type Journal Article
  Year (up) 2010 Publication Functional Ecology Abbreviated Journal Funct. Ecol.  
  Volume 24 Issue 6 Pages 1202-1210  
  Keywords bark thickness; fire ecology; flexural rigidity; herbivore defence; periderm; rhytidome; trunk respiration  
  Abstract P>1. The complex structure of tree bark reflects its many functions, which include structural support as well as defence against fire, pests and pathogens. Thick bark, however, might limit respiration by the living tissues of the trunk. Nevertheless, little research has addressed community-level variation in bark thickness, and to the best of our knowledge, no one has tested multiple hypotheses to explain variation in bark thickness. 2. We conducted an extensive survey of bark thickness within and among species of trees in the tropical rain forests of French Guiana. Trunk bark thickness increased by 1 center dot 2 mm per 10 cm increase in stem diameter, and varied widely at all taxonomic levels. Mean trunk bark thickness was 4 center dot 5 mm (range: 0 center dot 5-29 mm), which was less that found in two Amazonian rain forests in previous studies. This survey of bark thickness should be of use for forest management since tree survival through fire is strongly predicted by bark thickness. 3. We combined the survey data with multiple datasets to test several functional hypotheses proposed to explain variation in bark thickness. We found bark to provide an average of 10% of the flexural rigidity of tree stems, which was substantially less than that found in the only other study of bark stiffness. Bark thickness was uncorrelated with species' association with fire-prone habitats, suggesting that the influence of fire on bark thickness does not extend into moist Forests. There was also little evidence that bark thickness is affected by its function as a defence against herbivory. Nor was there evidence that thick bark limits trunk respiration. 4. A re-analysis of previously collected anatomical data indicated that variation in rhytidome (non-conducting outer bark) thickness explains much of the variation in overall bark thickness. As rhytidome is primarily involved in protecting the living tissues of the trunk, we suggest that bark thickness is driven mostly by its defensive function. 5. Functional explanations for the variation in bark thickness were not clear-cut. Nevertheless, this study provides a foundation for further investigation of the functional bases of bark in tropical trees.  
  Address [Paine, Charles Eliot Timothy] ENGREF, UMR Ecol Forets Guyane, F-97387 Kourou, France, Email: timothy.paine@ieu.uzh.ch  
  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 0269-8463 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000284589400005 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 15  
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Author Wagner, F.; Rutishauser, E.; Blanc, L.; Herault, B. openurl 
  Title Effects of Plot Size and Census Interval on Descriptors of Forest Structure and Dynamics Type Journal Article
  Year (up) 2010 Publication Biotropica Abbreviated Journal Biotropica  
  Volume 42 Issue 6 Pages 664-671  
  Keywords Amazonia; biomass fluxes; coefficient of variation; forest permanent plots; turnover rates; WinBUGS  
  Abstract This study was designed to explicitly formulate the effect of census interval and plot size on the variability of descriptors of tropical forest structure (stand density, basal area, aboveground biomass [AGB]) and dynamic (tree growth, mortality and recruitment rates, biomass fluxes). A unique dataset from a broad plot network (37.5 ha) surveyed every 2 yr over a 16-yr period was used to develop and parameterize a new statistical model predicting the coefficients of variation for each forest descriptor. More than 90 percent of the inherent variability of these coefficients was predicted using a simple model including plot size and census interval in a Bayesian modeling framework. All descriptors of forest structure varied by <10 percent for plot sizes 42 ha. Among the descriptors of forest dynamics, AGB loss was the most variable. The number of 6.25 ha plots required to estimate its mean, over a 16-yr period, within a 20 percent error of the mean remains above four. This contrasts with a relative constant flux of biomass entering the plot through tree growth and tree recruitment. Tree growth was remarkably well estimated with <15 percent variability for a 2-yr census in a plot of 2 ha. This study provides an easy method to assess dataset limitations in efforts to estimate descriptors of forest structure and dynamic, which is of primary importance to decipher any clear consequences of global change in tropical forests.  
  Address [Wagner, Fabien; Herault, Bruno] Univ Antilles Guyane, UMR Ecol Forets Guyane, Kourou 97379, French Guiana, Email: bruno.herault@ecofog.gf  
  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 0006-3606 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000283949700006 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 16  
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Author Orivel, J.; Corbara, B.; Dejean, A. openurl 
  Title Constraints and adaptation in the arboreal life of ants Type Journal Article
  Year (up) 2010 Publication Biofutur Abbreviated Journal Biofutur  
  Volume 315 Issue Pages 34-37  
  Keywords  
  Abstract  
  Address [Orivel, Jerome] CNRS, UMR Ecol Forets Guyane, Kourou 97379, French Guiana  
  Corporate Author Thesis  
  Publisher ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0294-3506 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000284987300004 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 17  
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