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Author Bertelsmeier, C.; Avril, A.; Blight, O.; Confais, A.; Diez, L.; Jourdan, H.; Orivel, J.; Saint Germès, N.; Courchamp, F. doi  openurl
  Title Different behavioural strategies among seven highly invasive ant species Type Journal Article
  Year (down) 2015 Publication Biological Invasions Abbreviated Journal  
  Volume 17 Issue 8 Pages 2491-2503  
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  Abstract Ants figure prominently among the worst invasive species because of their enormous ecological and economic impacts. However, it remains to be investigated which species would be behaviourally dominant when confronted with another invasive ant species, should two species be introduced in the same area. In the future, many regions might have suitable environmental conditions for several invasive ant species, as predicted under climate change scenarios. Here, we explored interactions among several highly invasive ant species, which have been shown to have overlapping suitable areas. The aim of this study was to evaluate the performance in interference competition of seven of the world’s worst invasive ant species (Anoplolepis gracilipes, Paratrechina longicornis, Myrmica rubra, Linepithema humile, Lasius neglectus, Wasmannia auropunctata and Pheidole megacephala). We conducted pairwise confrontations, testing the behaviour of each species against each of the six other species (in total 21 dyadic confrontations). We used single worker confrontations and group interactions of 10 versus 10 individuals to establish a dominance hierarchy among these invasive ant species. We discovered two different behavioural strategies among these invasive ants: three species displayed evasive or indifferent behaviour when individuals or groups were confronted (A. gracilipes, Pa. longicornis, M. rubra), while the four remaining species were highly aggressive during encounters and formed a linear dominance hierarchy. These findings contrast with the widespread view that invasive ants form a homogeneous group of species displaying the ‘invasive syndrome’, which includes generally aggressive behaviour. The dominance hierarchy among the four aggressive species may be used to predict the outcome of future competitive interactions under some circumstances. Yet, the existence of several behavioural strategies renders such a prediction less straightforward.  
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  Call Number EcoFoG @ webmaster @ Bertelsmeier2015 Serial 650  
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Author Robillard, T.; ter Hofstede, H.M.; Orivel, J.; Vicente, N.M. doi  openurl
  Title Bioacoustics of the Neotropical Eneopterinae (Orthoptera, Grylloidea, Gryllidae) Type Journal Article
  Year (down) 2015 Publication Bioacoustics Abbreviated Journal Bioacoustics  
  Volume 24 Issue 2 Pages 123-143  
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  Abstract In members of the cricket subfamily Eneopterinae (Orthoptera, Grylloidea), songs with powerful high-frequency (HF) harmonics have evolved, which likely represents a distinctive acoustic adaptation. In this study, we analysed or reanalysed the songs of the three eneopterine genera present in the Neotropics to evaluate whether they also possess high-amplitude HF components. We present new data and combine several lines of evidence to interpret or reinterpret the calling signals of a representative species for each genus. We used new recordings in order to detect and analyse potential HF components of the songs. Stridulatory files were measured, and stridulation was studied using high-speed video recordings. The results suggest that all eneopterine genera from the Neotropics use HFs to communicate, based on the rich harmonic content of their songs. Strikingly, the Neotropical eneopterines possess high dominant frequencies, recalling the patterns observed in the tribe Lebinthini, the most speciose tribe of the subfamily distributed in the Western Pacific region and in Southeast Asia: Ligypterus and Ponca show dominant harmonic peaks, whereas Eneoptera possesses unique features. The three species under study, however, deal differently with HFs.  
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  ISSN 0952-4622 ISBN Medium  
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  Notes doi: 10.1080/09524622.2014.996915 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 651  
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Author ter Steege, H.; Pitman, N.C.A.; Killeen, T.J.; Laurance, W.F.; Peres, C.A.; Guevara, J.E.; Salomão, R.P.; Castilho, C.V.; Amaral, I.L.; de Almeida Matos, F.D.; de Souza Coelho, L.; Magnusson, W.E.; Phillips, O.L.; de Andrade Lima Filho, D.; de Jesus Veiga Carim, M.; Irume, M.V.; Martins, M.P.; Molino, J.-F.; Sabatier, D.; Wittmann, F.; López, D.C.; da Silva Guimarães, J.R.; Mendoza, A.M.; Vargas, P.N.; Manzatto, A.G.; Reis, N.F.C.; Terborgh, J.; Casula, K.R.; Montero, J.C.; Feldpausch, T.R.; Honorio Coronado, E.N.; Montoya, A.J.D.; Zartman, C.E.; Mostacedo, B.; Vasquez, R.; Assis, R.L.; Medeiros, M.B.; Simon, M.F.; Andrade, A.; Camargo, J.L.; Laurance, S.G.W.; Nascimento, H.E.M.; Marimon, B.S.; Marimon, B.-H.; Costa, F.; Targhetta, N.; Vieira, I.C.G.; Brienen, R.; Castellanos, H.; Duivenvoorden, J.F.; Mogollón, H.F.; Piedade, M.T.F.; Aymard C., G.A.; Comiskey, J.A.; Damasco, G.; Dávila, N.; García-Villacorta, R.; Diaz, P.R.S.; Vincentini, A.; Emilio, T.; Levis, C.; Schietti, J.; Souza, P.; Alonso, A.; Dallmeier, F.; Ferreira, L.V.; Neill, D.; Araujo-Murakami, A.; Arroyo, L.; Carvalho, F.A.; Souza, F.C.; Amaral, D.D. do; Gribel, R.; Luize, B.G.; Pansonato, M.P.; Venticinque, E.; Fine, P.; Toledo, M.; Baraloto, C.; Cerón, C.; Engel, J.; Henkel, T.W.; Jimenez, E.M.; Maas, P.; Mora, M.C.P.; Petronelli, P.; Revilla, J.D.C.; Silveira, M.; Stropp, J.; Thomas-Caesar, R.; Baker, T.R.; Daly, D.; Paredes, M.R.; da Silva, N.F.; Fuentes, A.; Jørgensen, P.M.; Schöngart, J.; Silman, M.R.; Arboleda, N.C.; Cintra, B.B.L.; Valverde, F.C.; Di Fiore, A.; Phillips, J.F.; van Andel, T.R.; von Hildebrand, P.; Barbosa, E.M.; de Matos Bonates, L.C.; de Castro, D.; de Sousa Farias, E.; Gonzales, T.; Guillaumet, J.-L.; Hoffman, B.; Malhi, Y.; de Andrade Miranda, I.P.; Prieto, A.; Rudas, A.; Ruschell, A.R.; Silva, N.; Vela, C.I.A.; Vos, V.A.; Zent, E.L.; Zent, S.; Cano, A.; Nascimento, M.T.; Oliveira, A.A.; Ramirez-Angulo, H.; Ramos, J.F.; Sierra, R.; Tirado, M.; Medina, M.N.U.; van der Heijden, G.; Torre, E.V.; Vriesendorp, C.; Wang, O.; Young, K.R.; Baider, C.; Balslev, H.; de Castro, N.; Farfan-Rios, W.; Ferreira, C.; Mendoza, C.; Mesones, I.; Torres-Lezama, A.; Giraldo, L.E.U.; Villarroel, D.; Zagt, R.; Alexiades, M.N.; Garcia-Cabrera, K.; Hernandez, L.; Huamantupa-Chuquimaco, I.; Milliken, W.; Cuenca, W.P.; Pansini, S.; Pauletto, D.; Arevalo, F.R.; Sampaio, A.F.; Valderrama Sandoval, E.H.; Gamarra, L.V. pdf  url
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  Title Estimating the global conservation status of more than 15,000 Amazonian tree species Type Journal Article
  Year (down) 2015 Publication Science Advances Abbreviated Journal  
  Volume 1 Issue 10 Pages  
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  Abstract Estimates of extinction risk for Amazonian plant and animal species are rare and not often incorporated into land-use policy and conservation planning. We overlay spatial distribution models with historical and projected deforestation to show that at least 36% and up to 57% of all Amazonian tree species are likely to qualify as globally threatened under International Union for Conservation of Nature (IUCN) Red List criteria. If confirmed, these results would increase the number of threatened plant species on Earth by 22%. We show that the trends observed in Amazonia apply to trees throughout the tropics, and we predict that most of the world’s >40,000 tropical tree species now qualify as globally threatened. A gap analysis suggests that existing Amazonian protected areas and indigenous territories will protect viable populations of most threatened species if these areas suffer no further degradation, highlighting the key roles that protected areas, indigenous peoples, and improved governance can play in preventing large-scale extinctions in the tropics in this century.  
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  Call Number EcoFoG @ webmaster @ Serial 665  
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Author Rossi, V.;Dolley, T.; Cornu, G.; Guitet, S.;Herault, B. openurl 
  Title GuyaSim : un outil d’aide à la décision pour l’aménagement d’un territoire forestier, la Guyane Type Journal Article
  Year (down) 2015 Publication Bois et Forets des Tropiques Abbreviated Journal  
  Volume 326 Issue 4 Pages 67-78  
  Keywords GIS software; scenarios; ecosystem services; simulator; biodiversity; carbon stock; biomass; logging; deforestation; land use changes; tropical forest; French Guiana  
  Abstract Planning policies for rapid development in French Guiana will require the conversion of forested areas, thus contributing to glo- bal warming. Guiana’s policy-makers will need to integrate the preservation of eco- system services into their planning deci- sions. The GuyaSim project was conduc- ted to produce more in-depth knowledge on these services (carbon sequestration, biodiversity and soil quality) and to trans- fer a software application, GuyaSim, to policy-makers to facilitate the use of this knowledge in the development of plan- ning policies. This article presents the characteristics of the application. Guya- Sim is a freeware package of the GIS type designed initially for local authority plan- ners and forestry departments in French Guiana. The application has two main functions:
information delivery and sup-
port for planning decisions. The informa- tion provided includes socio-economic development scenarios, climate scenarios and valuations of ecosystem services. The decision-support component consists of tools for building planning scenarios (land use changes) and forestry scenarios (log- ging), with information on their environ- mental impacts. The functionalities of the software are currently limited by the state of knowledge on Guiana’s ecosystems. Advances made through current research projects are expected to upgrade the application in the medium term.
 
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  Call Number EcoFoG @ webmaster @ Serial 666  
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Author Amusant, N.; Digeon, A.; Descroix, L.; Bruneau, O.; Bezard, V.; Beauchene, J. url  openurl
  Title Planting rosewood for sustainable essential oil production: Influence of surrounding forest and seed provenance on tree growth and essential oil yields Type Journal Article
  Year (down) 2015 Publication Bois et Forets des Tropiques Abbreviated Journal Bois et Forets des Tropiques  
  Volume 326 Issue 4 Pages 57-65  
  Keywords Aniba rosaeodora Ducke; Dendrometric traits; Essential oil yield; French Guiana; Light effect; Plantation; Rosewood; Seed provenance  
  Abstract Essential oil from the Amazonian rosewood tree (Aniba rosaeodora Ducke) is valued as an important aromatic ingredient in luxury perfumes. Due to over-harvesting in recent decades, rosewood is now listed as an endangered species. Rosewood tree planting is now considered a viable alternative to logging as it can support both reforestation and sustainable agriculture thanks to sales of the essential oil extracted. We planted 605 rosewood trees in French Guiana from two seeds of local provenance, in a 5 445 m2 plot surrounded by primary forest. Nine years after planting, we assessed the effect of the position of the tree relative to the surrounding forest and of the seed provenance on dendrometric traits (height, circumference, above ground woody biomass) and hence on the yield of essential oil. Measurements were made on 99 trees. Average growth rates for the young trees were 0.7 m/year in height, 2.5 cm/year in stem circumference and 990.5 kg dry mass/ha/year in aboveground biomass, while essential oil yields ranged from 0.6% to 3.6% with a mean of 2.1%. The position of the tree relative to the surrounding forest was the main factor affecting tree growth and essential oil production: trees located close to the surrounding forest were significantly smaller and accumulated less essential oil due to the reduced availability of light. Seed provenance had less effect on dendrometric traits and essential oil yields. In conclusion, although planting practices will need to be adapted to avoid the edge effects of proximity to the forest, short-rotation cultivation of rosewood trees could be the optimum and most economically attractive system for the production of essential oil.  
  Address Office National des Forêts (ONF), Département R and D, Pôle de Cayenne, Réserve de Montabo, BP 87002, Cayenne Cedex, French Guiana  
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  Notes Export Date: 7 March 2016 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 670  
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Author Roussel, J.-R.; Clair, B. url  openurl
  Title Evidence of the late lignification of the G-layer in Simarouba tension wood, to assist understanding how non-G-layer species produce tensile stress Type Journal Article
  Year (down) 2015 Publication Tree Physiology Abbreviated Journal Tree Physiology  
  Volume 35 Issue 12 Pages 1366-1377  
  Keywords maturation stress generation; ontogeny; Simarouba amara Aubl.; tension wood cell wall; tree biomechanics  
  Abstract To recover verticality after disturbance, angiosperm trees produce 'tension wood' allowing them to bend actively. The driving force of the tension has been shown to take place in the G-layer, a specific unlignified layer of the cell wall observed in most temperate species. However, in tropical rain forests, the G-layer is often absent and the mechanism generating the forces to reorient trees remains unclear. A study was carried out on tilted seedlings, saplings and adult Simarouba amara Aubl. trees – a species known to not produce a G-layer. Microscopic observations were done on sections of normal and tension wood after staining or observed under UV light to assess the presence/absence of lignin. We showed that S. amara produces a cell-wall layer with all of the characteristics typical of G-layers, but that this G-layer can be observed only as a temporary stage of the cell-wall development because it is masked by a late lignification. Being thin and lignified, tension wood fibres cannot be distinguished from normal wood fibres in the mature wood of adult trees. These observations indicate that the mechanism generating the high tensile stress in tension wood is likely to be the same as that in species with a typical G-layer and also in species where the G-layer cannot be observed in mature cells. © 2015 The Author 2015. Published by Oxford University Press. All rights reserved.  
  Address CNRS, UMR Ecologie des Forêts de Guyane (EcoFoG), Campus Agronomique, BP 701, Kourou, France  
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  Notes Export Date: 25 March 2016 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 672  
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Author Falster, D.S.; Duursma, R.A.; Ishihara, M.I.; Barneche, D.R.; FitzJohn, R.G.; Vårhammar, A.; Aiba, M.; Ando, M.; Anten, N.; Aspinwall, M.J.; Baltzer, J.L.; Baraloto, C.; Battaglia, M.; Battles, J.J.; Lamberty, B.B.; Van Breugel, M.; Camac, J.; Claveau, Y.; Coll, L.; Dannoura, M.; Delagrange, S.; Domec, J.C.; Fatemi, F.; Feng, W.; Gargaglione, V.; Goto, Y.; Hagihara, A.; Hall, J.S.; Hamilton, S.; Harja, D.; Hiura, T.; Holdaway, R.; Hutley, L.B.; Ichie, T.; Jokela, E.J.; Kantola, A.; Kelly, J.W.G.; Kenzo, T.; King, D.; Kloeppel, B.D.; Kohyama, T.; Komiyama, A.; Laclau, J.P.; Lusk, C.H.; Maguire, D.A.; Le Maire, G.; Mäkelä, A.; Markesteijn, L.; Marshall, J.; McCulloh, K.; Miyata, I.; Mokany, K.; Mori, S.; Myster, R.W.; Nagano, M.; Naidu, S.L.; Nouvellon, Y.; O'Grady, A.P.; O'Hara, K.L.; Ohtsuka, T.; Osada, N.; Osunkoya, O.O.; Peri, P.L.; Petritan, A.M.; Poorter, L.; Portsmuth, A.; Potvin, C.; Ransijn, J.; Reid, D.; Ribeiro, S.C.; Roberts, S.D.; Rodríguez, R.; Acosta, A.S.; Santa-Regina, I.; Sasa, K.; Selaya, N.G.; Sillett, S.C.; Sterck, F.; Takagi, K.; Tange, T.; Tanouchi, H.; Tissue, D.; Umehara, T.; Utsugi, H.; Vadeboncoeur, M.A.; Valladares, F.; Vanninen, P.; Wang, J.R.; Wenk, E.; Williams, R.; De Aquino Ximenes, F.; Yamaba, A.; Yamada, T.; Yamakura, T.; Yanai, R.D.; York, R.A. url  doi
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  Title BAAD: a Biomass And Allometry Database for woody plants Type Journal Article
  Year (down) 2015 Publication Ecology Abbreviated Journal Ecology  
  Volume 96 Issue 5 Pages 1445  
  Keywords Allometric equations; Biomass allocation; Biomass partitioning; Global carbon cycle; Plant allometry; Plant traits  
  Abstract Understanding how plants are constructed; i.e., how key size dimensions and the amount of mass invested in different tissues varies among individuals; is essential for modeling plant growth, estimating carbon stocks, and mapping energy fluxes in the terrestrial biosphere. Allocation patterns can differ through ontogeny, but also among coexisting species and among species adapted to different environments. While a variety of models dealing with biomass allocation exist, we lack a synthetic understanding of the underlying processes. This is partly due to the lack of suitable data sets for validating and parameterizing models. To that end, we present the Biomass and allometry database (BAAD) for woody plants. The BAAD contains 259 634 measurements collected in 176 different studies, from 21 084 individuals across 678 species. Most of these data come from existing publications. However, raw data were rarely made public at time of publication. Thus the BAAD contains individual level data from different studies, transformed into standard units and variable names. The transformations were achieved using a common workflow for all raw data files. Other features that distinguish the BAAD are: (i) measurements were for individual plants rather than stand averages; (ii) individuals spanning a range of sizes were measured; (iii) inclusion of plants from 0.01-100 m in height; and (iii) biomass was estimated directly, i.e., not indirectly via allometric equations (except in very large trees where biomass was estimated from detailed subsampling). We included both wild and artificially grown plants. The data set contains the following size metrics: total leaf area; area of stem crosssection including sapwood, heartwood, and bark; height of plant and crown base, crown area, and surface area; and the dry mass of leaf, stem, branches, sapwood, heartwood, bark, coarse roots, and fine root tissues. We also report other properties of individuals (age, leaf size, leaf mass per area, wood density, nitrogen content of leaves and wood), as well as information about the growing environment (location, light, experimental treatment, vegetation type) where available. It is our hope that making these data available will improve our ability to understand plant growth, ecosystem dynamics, and carbon cycling in the world's vegetation.  
  Address Department of Disturbance Ecology, University of Bayreuth, Germany  
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  Notes Export Date: 1 September 2016 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 686  
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Author Dezerald, O.; Talaga, S.; Leroy, C.; Carrias, J.-F.; Corbara, B.; Dejean, A.; Céréghino, R. url  doi
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  Title Environmental determinants of macroinvertebrate diversity in small water bodies: Insights from tank-bromeliads Type Journal Article
  Year (down) 2014 Publication Hydrobiologia Abbreviated Journal Hydrobiologia  
  Volume 723 Issue 1 Pages 77-86  
  Keywords Freshwater biodiversity; Linear mixed effect modelling; Microcosms; Phytotelmata; Ponds  
  Abstract The interlocking leaves of tank-forming bromeliads (Bromeliaceae) collect rainwater and detritus, thus creating a freshwater habitat for specialized organisms. Their abundance and the possibility of quantifying communities with accuracy give us unparalleled insight into how changes in local to regional environments influence community diversity in small water bodies. We sampled 365 bromeliads (365 invertebrate communities) along a southeastern to northwestern range in French Guiana. Geographic locality determined the species pool for bromeliad invertebrates, and local environments determined the abundance patterns through the selection of traits that are best adapted to the bromeliad habitats. Patterns in community structure mostly emerged from patterns of predator species occurrence and abundance across local-regional environments, while the set of detritivores remained constant. Water volume had a strong positive correlation with invertebrate diversity, making it a biologically relevant measure of the pools' carrying capacity. The significant effects of incoming detritus and incident light show that changes in local environments (e.g., the conversion of forest to cropping systems) strongly influence freshwater communities. Because changes in local environments do not affect detritivores and predators equally, one may expect functional shifts as sets of invertebrates with particular traits are replaced or complemented by other sets with different traits. © 2013 Springer Science+Business Media Dordrecht.  
  Address CNRS, EcoLab (UMR-CNRS 5245), 118 Route de Narbonne, 31062 Toulouse, France  
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  Call Number EcoFoG @ webmaster @ Serial 517  
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Author Fortunel, C.; Paine, C.E.T.; Fine, P.V.A.; Kraft, N.J.B.; Baraloto, C. url  openurl
  Title Environmental factors predict community functional composition in Amazonian forests Type Journal Article
  Year (down) 2014 Publication Journal of Ecology Abbreviated Journal J. Ecol.  
  Volume 102 Issue 1 Pages 145-155  
  Keywords Amazonian landscape; Climatic and soil gradients; Determinants of plant community diversity and structure; Environmental filtering; Functional traits; Tree communities; Tropical forests  
  Abstract The consequences of biodiversity loss for ecosystem services largely depend on the functional identities of extirpated species. However, poor descriptions of spatial patterns of community functional composition across landscapes hamper accurate predictions, particularly in highly diverse tropical regions. Therefore, understanding how community functional composition varies across environmental gradients remains an important challenge. We sampled 15 functional traits in 800 Neotropical tree species across 13 forest plots representative of the broad climatic and soil gradients encompassed by three widespread lowland forest habitats (terra firme forests on clay-rich soils, seasonally flooded forests and white-sand forests) at opposite ends of Amazonia (Peru and French Guiana). We combined univariate and multivariate approaches to test the magnitude and predictability of environmental filtering on community leaf and wood functional composition. Directional shifts in community functional composition correlated with environmental changes across the 13 plots, with denser leaves, stems and roots in forests occurring in environments with limited water and soil-nutrient availability. Critically, these relationships allowed us to accurately predict the functional composition of 61 additional forest plots from environmental data alone. Synthesis. Environmental filtering consistently shapes the functional composition of highly diverse tropical forests at large scales across the terra firme, seasonally flooded and white-sand forests of lowland Amazonia. Environmental factors drive and allow the prediction of variation in community functional composition among habitat types in Amazonian forests. © 2013 British Ecological Society.  
  Address Department of Biology, University of Florida, Gainesville, FL, 32611, United States  
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  Area Expedition Conference  
  Notes Export Date: 31 December 2013; Source: Scopus; Coden: Jecoa; doi: 10.1111/1365-2745.12160; 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-0743103/0743800, NSF, National Science Foundation; References: Agrawal, A.A., Fishbein, M., Plant defense syndromes (2006) Ecology, 87, pp. S132-S149; Anderson, L.O., Malhi, Y., Ladle, R.J., Aragao, L., Shimabukuro, Y., Phillips, O.L., Influence of landscape heterogeneity on spatial patterns of wood productivity, wood specific density and above ground biomass in Amazonia (2009) Biogeosciences, 6, pp. 1883-1902; Asner, G.P., Alencar, A., Drought impacts on the Amazon forest: the remote sensing perspective (2010) New Phytologist, 187, pp. 569-578; Asner, G.P., Loarie, S.R., Heyder, U., Combined effects of climate and land-use change on the future of humid tropical forests (2010) Conservation Letters, 3, pp. 395-403; Baraloto, C., Paine, C.E.T., Patiño, S., Bonal, D., Herault, B., Chave, J., Functional trait variation and sampling strategies in species-rich plant communities (2010) Functional Ecology, 24, pp. 208-216; Baraloto, C., Paine, C.E.T., Poorter, L., Beauchene, J., Bonal, D., Domenach, A.M., Hérault, B., Chave, J., Decoupled leaf and stem economics in rain forest trees (2010) Ecology Letters, 13, pp. 1338-1347; Baraloto, C., Rabaud, S., Molto, Q., Blanc, L., Fortunel, C., Hérault, B., Davila, N., Fine, P.V.A., Disentangling stand and environmental correlates of aboveground biomass in Amazonian forests (2011) Global Change Biology, 17, pp. 2677-2688; Baraloto, C., Molto, Q., Rabaud, S., Hérault, B., Valencia, R., Blanc, L., Fine, P.V.A., Thompson, J., Rapid simultaneous estimation of aboveground biomass and tree diversity across Neotropical forests: a comparison of field inventory methods (2013) Biotropica, 45, pp. 288-298; Belyea, L.R., Lancaster, J., Assembly rules within a contingent ecology (1999) Oikos, 86, pp. 402-416; Berry, S.L., Roderick, M.L., Estimating mixtures of leaf functional types using continental-scale satellite and climatic data (2002) Global Ecology and Biogeography, 11, pp. 23-39; Brando, P.M., Nepstad, D.C., Balch, J.K., Bolker, B., Christman, M.C., Coe, M., Putz, F.E., Fire-induced tree mortality in a neotropical forest: the roles of bark traits, tree size, wood density and fire behavior (2012) Global Change Biology, 18, pp. 630-641; Burnham, K.P., Anderson, D.R., Multimodel inference – understanding AIC and BIC in model selection (2004) Sociological Methods & Research, 33, pp. 261-304; Calcagno, V., de Mazancourt, C., glmulti: an R package for easy automated model selection with (generalized) linear models (2010) Journal of Statistical Software, 34, pp. 1-29; Chapin, F.S., BretHarte, M.S., Hobbie, S.E., Zhong, H.L., Plant functional types as predictors of transient responses of arctic vegetation to global change (1996) Journal of Vegetation Science, 7, pp. 347-358; Chaturvedi, R.K., Raghubanshi, A.S., Singh, J.S., Leaf attributes and tree growth in a tropical dry forest (2011) Journal of Vegetation Science, 22, pp. 917-931; Chave, J., Coomes, D., Jansen, S., Lewis, S.L., Swenson, N.G., Zanne, A.E., Towards a worldwide wood economics spectrum (2009) Ecology Letters, 12, pp. 351-366; Cingolani, A.M., Cabido, M., Gurvich, D.E., Renison, D., Diaz, S., Filtering processes in the assembly of plant communities: are species presence and abundance driven by the same traits? 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Author Perrin, A.-S.; Fujisaki, K.; Petitjean, C.; Sarrazin, M.; Godet, M.; Garric, B.; Horth, J.-C.; Balbino, L.C.; Filho, A.S.; de Almeida Machado, P.L.O.; Brossard, M. url  doi
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  Title Conversion of forest to agriculture in Amazonia with the chop-and-mulch method: Does it improve the soil carbon stock? Type Journal Article
  Year (down) 2014 Publication Agriculture, Ecosystems and Environment Abbreviated Journal Agric. Ecosyst. Environ.  
  Volume 184 Issue Pages 101-114  
  Keywords Annual crops; Brachiaria; Deforestation; Fire-free; French Guiana; No-tillage  
  Abstract Fire-free forest conversion with organic inputs as an alternative to slash-and-burn could improve agro-ecosystem sustainability. We assessed soil carbon mass changes in a sandy-clayey and well-drained soil in French Guiana after forest clearing by the chop-and-mulch method and crop establishment. At the experimental site of Combi, native forest was cut down in October 2008; woody biomass was chopped and incorporated into the top 20cm of soil. After about one year of legume and grass cover, three forms of land management were compared: grassland (Urochloa ruziziensis), maize/soybean crop rotation with disk tillage and in direct seeding without tillage. There were four replicates. We measured 14.16kgm-2 of carbon in 2mm-sieved soil down to 2m depth for the initial forest. Forest clearing did not induce significant soil compaction; neither did any specific agricultural practice. In converted soils, C stocks were measured in the 0-30cm layer after each crop for three years. Carbon mass changes for soil fractions <2mm (soil C stock) and >2mm (soil C pool) in the 0-5, 5-10, 10-20 and 20-30cm soil layers were assessed on an equivalent soil mass basis. One year and 1.5 years after deforestation, higher C stocks (+0.64 to 1.16kgCm-2yr-1) and C pools (+0.52 to 0.90kgCm-2yr-1) were measured in converted soils, compared to those of the forest into the top 30cm of soil. However, the masses of carbon in these converted soils declined later. The highest rates of carbon decrease were measured between 1.5 and 2 years after forest conversion in the <2mm soil fraction, from 0.46kgCm-2yr-1 (in grassland soils) to 0.71kgCm-2yr-1 (in cropland under no tillage). The carbon pool declined during the third year at rates of 0.41kgCm-2yr-1 (cropland under disk tillage) to 0.76kgCm-2yr-1 (grassland soils). Three years after forest conversion, C masses in the top 30cm of soils for grassland showed similar values than for forest. In comparison, the carbon stock in cropped soils managed under no tillage in direct seeding (without mulch) was significantly 17% and 16% lower than in forest and grassland soils, respectively. None of the studied agricultural practices succeeded in accumulating carbon from the chopped forest biomass. © 2013 Elsevier B.V.  
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  Notes Export Date: 2 January 2014; Source: Scopus; Coden: Aeend; doi: 10.1016/j.agee.2013.11.009 Approved no  
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