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Allié, E.; Pélissier, R.; Engel, J.; Petronelli, P.; Freycon, V.; Deblauwe, V.; Soucémarianadin, L.; Weigel, J.; Baraloto, C. |
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Pervasive local-scale tree-soil habitat association in a tropical forest community |
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Journal Article |
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2015 |
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PLoS ONE |
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PLoS ONE |
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10 |
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11 |
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e0141488 |
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We examined tree-soil habitat associations in lowland forest communities at Paracou, French Guiana.We analyzed a large dataset assembling six permanent plots totaling 37.5 ha, in which extensive LIDAR-derived topographical data and soil chemical and physical data have been integrated with precise botanical determinations. Map of relative elevation from the nearest stream summarized both soil fertility and hydromorphic characteristics, with seasonally inundated bottomlands having higher soil phosphate content and base saturation, and plateaus having higher soil carbon, nitrogen and aluminum contents. We employed a statistical test of correlations between tree species density and environmental maps, by generating Monte Carlo simulations of random raster images that preserve autocorrelation of the original maps. Nearly three fourths of the 94 taxa with at least one stem per ha showed a significant correlation between tree density and relative elevation, revealing contrasted species-habitat associations in term of abundance, with seasonally inundated bottomlands (24.5% of species) and well-drained plateaus (48.9% of species). We also observed species preferences for environments with or without steep slopes (13.8% and 10.6%, respectively). We observed that closely-related species were frequently associated with different soil habitats in this region (70% of the 14 genera with congeneric species that have a significant association test) suggesting species-habitat associations have arisen multiple times in this tree community. We also tested if species with similar habitat preferences shared functional strategies. We found that seasonally inundated forest specialists tended to have smaller stature (maximum diameter) than species found on plateaus. Our results underline the importance of tree-soil habitat associations in structuring diverse communities at fine spatial scales and suggest that additional studies are needed to disentangle community assembly mechanisms related to dispersal limitation, biotic interactions and environmental filtering from species-habitat associations. Moreover, they provide a framework to generalize across tropical forest sites. © 2015 Allié et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, FL, United States |
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Export Date: 7 January 2016 |
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Meyer-Sand, B.R.V.; Blanc-Jolivet, C.; Mader, M.; Paredes-Villanueva, K.; Tysklind, N.; Sebbenn, A.M.; Guichoux, E.; Degen, B. |
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Development of a set of SNP markers for population genetics studies of Ipe (Handroanthus sp.), a valuable tree genus from Latin America |
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Journal Article |
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2018 |
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Conservation Genetics Resources |
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Conserv. Gen. Res. |
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10 |
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4 |
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779-781 |
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Handroanthus sp; MassARRAY; Single nucleotide polymorphism |
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A combination of restriction associated DNA sequencing (RADSeq) and low coverage MiSeq genome sequencing was used for the development of single nucleotide polymorphisms (SNP) and INDEL (insertion/deletions) genetic markers for Ipe (Handroanthus sp.). Of the 402 putative loci identified, 389 SNPs and INDELs (315 nuclear SPNs, six chloroplast INDELs, 15 chloroplast SNPs, 12 mitochondrial INDELs and 41 mitochondrial SNPs) were successfully genotyped at 93 individuals from Brazil, Bolivia and French Guiana using a MassARRAY® iPLEX™ platform. This set of markers will be invaluable for population genetics, phylogeography and DNA fingerprinting studies. © 2017, Springer Science+Business Media B.V., part of Springer Nature. |
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Plateforme Génome Transcriptome de Bordeaux, INRA Pierroton, Bâtiment Artiga, 69 route d’Arcachon, Cestas, 33610, France |
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Springer Netherlands |
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Export Date: 12 November 2018; Correspondence Address: Blanc-Jolivet, C.; Thünen Institute of Forest Genetics, Sieker Landstrasse 2, Germany; email: celine.blanc-jolivet@thuenen.de; References: Blanc-Jolivet, C., Kersten, B., Bourland, N., Guichoux, E., Delcamp, A., Doucet, J.-L., Degen, B., Development of nuclear SNP markers for the timber tracking of the African tree species Sapelli, Entandrophragma cylindricum (2017) Conserv Genet Resour; Blanc-Jolivet, C., Kersten, B., Daïnou, K., Hardy, O., Guichoux, E., Delcamp, A., Degen, B., Development of nuclear SNP markers for genetic tracking of Iroko, Milicia excelsa and Milicia regia (2017) Conserv Genet Resour; Braga, A.C., Reis, A.M.M., Leoi, L.T., Pereira, R.W., Collevatti, R.G., Development and characterization of microsatellite markers for the tropical tree species Tabebuia aurea (Bignoniaceae) (2007) Mol Ecol Notes, 7, pp. 53-56. , COI: 1:CAS:528:DC%2BD2sXis1Sjuro%3D; Dumolin, S., Demesure, B., Pettit, R., Inheritance of chloroplast and mitochondrial genomes in pedunculate oak investigated with an efficient PCR method (1995) Theor Appl Genet, 91, pp. 1253-1256. , COI: 1:CAS:528:DyaK28XhsFKmsLo%3D; Goudet, J., Fstat (Version 2.9.3.2.): a computer program to calculate F-statistics (2002) J Heredity, 86, pp. 485-486; Grose, S.O., Olmstead, R.G., Evolution of a charismatic neotropical clade: molecular phylogeny of Tabebuia s. L crescentieae, and allied genera (Bignoniaceae) (2007) Syst Bot, 32, pp. 650-659; Jardine, D.I., Blanc-Jolivet, C., Dixon, R.R.M., Dormontt, E.E., Dunker, B., Gerlach, J., Development of SNP markers for Ayous (Triplochiton scleroxylon K. Schum) an economically important tree species from tropical West and Central Africa (2016) Conserv Genet Resour, 8 (2), pp. 129-139; Miller, M.R., Dunham, J.P., Amores, A., Cresko, W.A., Johnson, E.A., Rapid and cost-effective polymorphism identification and genotyping using restriction site associated DNA (RAD) markers (2007) Genome Res, 17, pp. 240-248. , COI: 1:CAS:528:DC%2BD2sXhsFKis7w%3D; Pakull, B., Mader, M., Kersten, B., Ekue, M.R.M., Dipelet, U.G.B., Paulini, M., Development of nuclear, chloroplast and mitochondrial SNP markers for Khaya sp (2016) Conserv Genet Resour, 8 (3), pp. 283-297; Schulze, M., Grogan, J., Uhl, C., Lentini, M., Vidal, E., Evaluating Ipê (Tabebuia, Bignoniaceae) logging in amazonia: Sustainable management or catalyst for forest degradation? (2008) Biol Conserv, 141, pp. 2071-2085; Straub, S.C., Parks, M., Weitemier, K., fishbein, M., Cronn, R.C., Liston, A., Navigating the tip of the genomic iceberg: next-generation sequencing for plant systematics (2012) Am J Bot, 99, pp. 349-364. , COI: 1:CAS:528:DC%2BC38XksValtbo%3D |
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Aguilos, M.; Stahl, C.; Burban, B.; Hérault, B.; Courtois, E.; Coste, S.; Wagner, F.; Ziegler, C.; Takagi, K.; Bonal, D. |
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Interannual and seasonal variations in ecosystem transpiration and water use efficiency in a tropical rainforest |
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Journal Article |
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2018 |
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Forests |
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Forests |
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10 |
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1 |
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Drought; Evapotranspiration; Radiation; Tropical rainforest; Water use efficiency; Atmospheric radiation; Carbon dioxide; Climate change; Drought; Efficiency; Evapotranspiration; Forestry; Heat radiation; Radiation effects; Soil moisture; Tropics; Water supply; Climate condition; Drought conditions; Interannual variability; Mechanistic models; Seasonal variation; Tropical ecosystems; Tropical rain forest; Water use efficiency; Ecosystems |
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Warmer and drier climates over Amazonia have been predicted for the next century with expected changes in regional water and carbon cycles. We examined the impact of interannual and seasonal variations in climate conditions on ecosystem-level evapotranspiration (ET) and water use efficiency (WUE) to determine key climatic drivers and anticipate the response of these ecosystems to climate change. We used daily climate and eddyflux data recorded at the Guyaflux site in French Guiana from 2004 to 2014. ET and WUE exhibited weak interannual variability. The main climatic driver of ET and WUE was global radiation (Rg), but relative extractable water (REW) and soil temperature (Ts) did also contribute. At the seasonal scale, ET and WUE showed a modal pattern driven by Rg, with maximum values for ET in July and August and for WUE at the beginning of the year. By removing radiation effects during water depleted periods, we showed that soil water stress strongly reduced ET. In contrast, drought conditions enhanced radiation-normalized WUE in almost all the years, suggesting that the lack of soil water had a more severe effect on ecosystem evapotranspiration than on photosynthesis. Our results are of major concern for tropical ecosystem modeling because they suggest that under future climate conditions, tropical forest ecosystems will be able to simultaneously adjust CO2 and H2O fluxes. Yet, for tropical forests under future conditions, the direction of change in WUE at the ecosystem scale is hard to predict, since the impact of radiation on WUE is counterbalanced by adjustments to soil water limitations. Developing mechanistic models that fully integrate the processes associated with CO2 and H2O flux control should help researchers understand and simulate future functional adjustments in these ecosystems. |
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Hokkaido University, Sapporo, 060-0808, Japan |
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Export Date: 1 February 2019; Correspondence Address: Bonal, D.; Université de Lorraine, AgroParisTech, INRA, UMR SilvaFrance; email: damien.bonal@inra.fr; References: Von Randow, C., Zeri, M., Restrepo-Coupe, N., Muza, M.N., de Gonçalves, L.G.G., Costa, M.H., Araujo, A.C., Saleska, S.R., Interannual variability of carbon and water fluxes in Amazonian forest, Cerrado and pasture sites, as simulated by terrestrial biosphere models (2013) Agric. For. Meteorol, 182-183, pp. 145-155; Duffy, P.B., Brando, P., Asner, G.P., Field, C.B., Projections of future meteorological drought and wet periods in the Amazon (2015) Proc. Natl. Acad. Sci. USA, 112, pp. 13172-13177; Cox, P.M., Betts, R.A., Collins, M., Harris, P.P., Huntingford, C., Jones, C.D., Amazonian forest dieback under climate-carbon cycle projections for the 21st century (2004) Theor. Appl. Climatol, 78, pp. 137-156; Poulter, B., Hattermann, F., Hawkins, E., Zaehle, S., Sitch, S., Restrepo-Coupe, N., Heyder, U., Cramer, W., Robust dynamics of Amazon dieback to climate change with perturbed ecosystem model parameters (2010) Glob. Chang. Biol, 16, pp. 2476-2495; Saleska, S.R., Didan, K., Huete, A.R., Da Rocha, H.R., Amazon forests green-up during 2005 drought (2007) Science, 318, p. 612; Phillips, O.L., Aragão, L.E.O.C., Lewis, S.L., Fisher, J.B., Lloyd, J., López-González, G., Malhi, Y., Quesada, C.A., Drought sensitivity of the amazon rainforest (2009) Science, 323, pp. 1344-1347; Bonal, D., Burban, B., Stahl, C., Wagner, F., Hérault, B., The response of tropical rainforests to drought-Lessons from recent research and future prospects (2016) Ann. For. Sci, 73, pp. 27-44; Wang, K.C., Dickinson, R.E., A review of global terrestrial evapotranspiration: Observation, modeling, climatology, and climatic variability (2012) Rev. Geophys, p. 50; Fisher, R.A., Williams, M., da Costa, A.L., Malhi, Y., da Costa, R.F., Almeida, S., Meir, P., The response of an Eastern Amazonian rain forest to drought stress: Results and modelling analyses from a throughfall exclusion experiment (2007) Glob. Chang. Biol, 13, pp. 2361-2378; Costa, M.H., Biajoli, M.C., Sanches, L., Malhado, A.C.M., Hutyra, L.R., Da Rocha, H.R., Aguiar, R.G., De Araújo, A.C., Atmospheric versus vegetation controls of Amazonian tropical rain forest evapotranspiration: Are the wet and seasonally dry rain forests any different? (2010) J. Geophys. Res. Biogeosci, 115, pp. 1-9; Carswell, F.E., Costa, A.L., Palheta, M., Malhi, Y., Meir, P., Costa, J.D.P.R., Ruivo, M.D.L., Clement, R.J., Seasonality in CO2 and H2O flux at an eastern Amazonian rain forest (2002) J. Geophys. Res. D Atmos, 107, p. 8076; Hasler, N., Avissar, R., What controls evapotranspiration in the Amazon basin? (2007) J. Hydrometeorol, 8, pp. 380-395; Da Rocha, H.R., Manzi, A.O., Cabral, O.M., Miller, S.D., Goulden, M.L., Saleska, S.R., Coupe, N.R., Artaxo, R., Patterns of water and heat flux across a biome gradient from tropical forest to savanna in brazil (2009) J. Geophys. Res. Biogeosci, p. 114; Kim, Y., Knox, R.G., Longo, M., Medvigy, D., Hutyra, L.R., Pyle, E.H., Wofsy, S.C., Moorcroft, P.R., Seasonal carbon dynamics and water fluxes in an Amazon rainforest (2012) Glob. Chang. Biol, 18, pp. 1322-1334; Maeda, E.E., Ma, X., Wagner, F.H., Kim, H., Oki, T., Eamus, D., Huete, A., Evapotranspiration seasonality across the Amazon Basin (2017) Earth Syst. Dyn, 8, pp. 439-454; Farquhar, G.D., Ehleringer, J.R., Hubick, K.T., Carbon isotope discrimination and photosynthesis (1989) Ann. Rev. Plant Physiol, 40, pp. 503-537; Hutyra, L.R., Munger, J.W., Saleska, S.R., Gottlieb, E., Daube, B.C., Dunn, A.L., Amaral, D.F., Wofsy, S.C., Seasonal controls on the exchange of carbon and water in an Amazonian rain forest (2007) J. Geophys. Res. Biogeosci; Negrón Juárez, R.I., Hodnett, M.G., Fu, R., Gouden, M.L., von Randow, C., Control of dry season evapotranspiration over the Amazonian forest as inferred from observation at a Southern Amazon forest site (2007) J. Clim, 20, pp. 2827-2839; Fisher, J.B., Malhi, Y., Bonal, D., Da Rocha, H.R., De Araújo, A.C., Gamo, M., Goulden, M.L., Kondo, H., The land-atmosphere water flux in the tropics (2009) Glob. Chang. Biol; Christoffersen, B.O., Restrepo-Coupe, N., Arain, M.A., Baker, I.T., Cestaro, B.P., Ciais, P., Fisher, J.B., Gulden, L., Mechanisms of water supply and vegetation demand govern the seasonality and magnitude of evapotranspiration in Amazonia and Cerrado (2014) Agric. For. Meteorol, 191, pp. 33-50; Da Costa, A.C.L., Rowland, L., Oliveira, R.S., Oliveira, A.A.R., Binks, O.J., Salmon, Y., Vasconcelos, S.S., Poyatos, R., Stand dynamics modulate water cycling and mortality risk in droughted tropical forest (2018) Glob. Chang. Biol; Huang, M., Piao, S., Sun, Y., Ciais, P., Cheng, L., Mao, J., Poulter, B., Wang, Y., Change in terrestrial ecosystem water-use efficiency over the last three decades (2015) Glob. Chang. Biol; Brienen, R.J.W., Wanek, W., Hietz, P., Stable carbon isotopes in tree rings indicate improved water use efficiency and drought responses of a tropical dry forest tree species (2011) Trees, 25, pp. 103-113; Yu, G., Song, X., Wang, Q., Liu, Y., Guan, D., Yan, J., Sun, X., Wen, X., Water-use efficiency of forest ecosystems in eastern China and its relations to climatic variables (2008) New Phytol, 177, pp. 927-937; Aguilos, M., Hérault, B., Burban, B., Wagner, F., Bonal, D., What drives long-term variations in carbon flux and balance in a tropical rainforest in French Guiana? Agric (2018) For. Meteorol, pp. 253-254; Bonal, D., Bosc, A., Ponton, S., Goret, J.Y., Burban, B.T., Gross, P., Bonnefond, J.M., Epron, D., Impact of severe dry season on net ecosystem exchange in the Neotropical rainforest of French Guiana (2008) Glob. Chang. Biol; Aubinet, M., Grelle, A., Ibrom, A., Rannik, U., Moncrieff, J.B., Foken, T., Kowalski, A.S., Bernhofer, C., Estimates of the annual net carbon and water exchange of forests: The Euroflux methodology (2000) Adv. Ecol. Res, 30, pp. 113-175; Wagner, F., Hérault, B., Stahl, C., Bonal, D., Rossi, V., Modeling water availability for trees in tropical forests (2011) Agric. For. Meteorol, 151, pp. 1202-1213; Kuglitsch, F.G., Reichstein, M., Beer, C., Carrara, A., Ceulemans, R., Granier, A., Janssens, I.A., Loustau, D., Characterisation of ecosystem water-use efficiency of european forests from eddy covariance measurements (2008) Biogeosci. Discuss, 5, pp. 4481-4519; Dekker, S.C., Groenendijk, M., Booth, B.B.B., Huntingford, C., Cox, P.M., Spatial and temporal variations in plant water-use efficiency inferred from tree-ring, eddy covariance and atmospheric observations (2016) Earth Syst. Dyn, 7, pp. 525-533; Yang, Y., Guan, H., Batelaan, O., McVicar, T.R., Long, D., Piao, S., Liang, W., Simmons, C.T., Contrasting responses of water use efficiency to drought across global terrestrial ecosystems (2016) Sci. Rep, 6, p. 23284; Granier, A., Bréda, N., Biron, P., Villette, S., A lumped water balance model to evaluate duration and intensity of drought constraints in forest stands (1999) Ecol. Model, 116, pp. 269-283; Kume, T., Takizawa, H., Yoshifuji, N., Tanaka, K., Tantasirin, C., Tanaka, N., Suzuki, M., Impact of soil drought on sap flow and water status of evergreen trees in a tropical monsoon forest in northern Thailand (2007) For. Ecol. Manag, 238, pp. 220-230; Xiao, J., Sun, G., Chen, J., Chen, H., Chen, S., Dong, G., Gao, S., Han, S., Carbon fluxes, evapotranspiration, and water use efficiency of terrestrial ecosystems in China (2013) Agric. For. Meteorol; Boese, S., Jung, M., Carvalhais, N., Reichstein, M., The importance of radiation for semi-empirical water-use efficiency models (2017) Biogeosciences, 14, pp. 3015-3026; Bonal, D., Ponton, S., Le Thiec, D., Richard, B., Ningre, N., Hérault, B., Ogée, J., Sabatier, D., Leaf functional response to increasing atmospheric CO2 concentrations over the last century in two northern Amazonian tree species: An historical δ13C and δ18O approach using herbarium samples (2011) Plant Cell Environ, 34, pp. 1332-1344; Wagner, F., Rossi, V., Stahl, C., Bonal, D., Hérault, B., Water availability is the main climate driver of neotropical tree growth (2012) PLoS ONE, 7; Van der Molen, M.K., Dolman, A.J., Ciais, P., Eglin, T., Gobron, N., Law, B.E., Meir, P., Reichstein, M., Drought and ecosystem carbon cycling (2011) Agric. For. Meteorol, 151, pp. 765-773; Allen, C.D., Macalady, A.K., Chenchouni, H., Bachelet, D., McDowell, N., Vennetier, M., Kitzberger, T., Hogg, E.H., A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests (2010) For. Ecol. Manag, 259, pp. 660-684; Da Rocha, H.R., Goulden, M.L., Miller, S.D., Menton, M.C., Pinto, L.D., De Freitas, H.C., Seasonality of water and heat fluxes over a tropical forest in eastern Amazonia (2004) Ecol. Appl, 14, pp. 22-32; Baldocchi, D., Falge, E., Gu, L., Olson, R., Hollinger, D., Running, S., Anthoni, P., Evans, R., FLUXNET: A New tool to study the temporal and spatial variability of ecosystem-scale carbon dioxide, water vapor, and energy flux densities (2001) Bull. Am. Meteorol. Soc, 82, pp. 2415-2434; Stahl, C., Hérault, B., Rossi, V., Burban, B., Bréchet, C., Bonal, D., Depth of soil water uptake by tropical rainforest trees during dry periods: Does tree dimension matter? (2013) Oecologia, 173, pp. 1191-1201; Nepstad, D.C., De Carvalho, C.R., Davidson, E.A., Jipp, P.H., Lefebvre, P.A., Negreiros, G.H., Da Silva, E.D., Vieira, S., The role of deep roots in the hydrological and carbon cycles of Amazonian forests and pastures (1994) Nature; Lee, J.-E., Boyce, K., Impact of the hydraulic capacity of plants on water and carbon fluxes in tropical South America (2010) J. Geophys. Res; Xiao, X., Zhang, Q., Saleska, S., Hutyra, L., De Camargo, P., Wofsy, S., Frolking, S., Moore, B., Satellite-based modeling of gross primary production in a seasonally moist tropical evergreen forest (2005) Remote Sens. Environ, 94, pp. 105-122; Wagner, F.H., Hérault, B., Bonal, D., Stahl, C., Anderson, L.O., Baker, T.R., Becker, G.S., Botosso, P.C., Climate seasonality limits leaf carbon assimilation and wood productivity in tropical forests (2016) Biogeosciences, 13, pp. 2537-2562; Stahl, C., Burban, B., Wagner, F., Goret, J.-Y., Bompy, F., Bonal, D., Influence of Seasonal Variations in Soil Water Availability on Gas Exchange of Tropical Canopy Trees (2013) Biotropica, 45, pp. 155-164; Maréchaux, I., Bonal, D., Bartlett, M.K., Burban, B., Coste, S., Courtois, E.A., Dulormne, M., Mirabel, A., Dry-season decline in tree sapflux is correlated with leaf turgor loss point in a tropical rainforest (2018) Funct. Ecol, 32, pp. 2285-2297; Chaves, M.M., Maroco, J.P., Pereira, J.S., Understanding plant responses to drought-from genes to the whole plant (2003) Funct. Plant Biol, 30, pp. 239-264 |
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Lehnebach, R.; Bossu, J.; Va, S.; Morel, H.; Amusant, N.; Nicolini, E.; Beauchene, J. |
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Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
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Journal Article |
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2019 |
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Forests |
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Forests |
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10 |
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2 |
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French Guiana; Growth-mortality rate; Heartwood; Heartwood extractives; Legumes; Sapwood; Shade tolerance; Tropical tree species; Wood density variations |
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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. |
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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 |
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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. 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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. 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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). 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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. 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858 |
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Ruiz-González, M.X.; Leroy, C.; Dejean, A.; Gryta, H.; Jargeat, P.; Carrión, A.D.A.; Orivel, J. |
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Do host plant and associated ant species affect microbial communities in myrmecophytes? |
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Journal Article |
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2019 |
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Insects |
Abbreviated Journal |
Insects |
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10 |
Issue |
11 |
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391 |
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Allomerus decemarticulatus; Allomerus octoarticulatus; Azteca sp; Cf; Cordia nodosa; Depilis; Domatia; Hirtella physophora; Microbial diversity |
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Ant-associated microorganisms can play crucial and often overlooked roles, and given the diversity of interactions that ants have developed, the study of the associated microbiomes is of interest. We focused here on specialist plant-ant species of the genus Allomerus that grow a fungus to build galleries on their host-plant stems. Allomerus-inhabited domatia, thus, might be a rich arena for microbes associated with the ants, the plant, and the fungus. We investigated the microbial communities present in domatia colonised by four arboreal ants: Allomerus decemarticulatus, A. octoarticulatus, A. octoarticulatus var. demerarae, and the non-fungus growing plant-ant Azteca sp. cf. depilis, inhabiting Hirtella physophora or Cordia nodosa in French Guiana. We hypothesized that the microbial community will differ among these species. We isolated microorganisms from five colonies of each species, sequenced the 16S rRNA or Internal TranscribedSpacer (ITS) regions, and described both the alpha and beta diversities. We identified 69 microbial taxa, which belong to five bacterial and two fungal phyla. The most diverse phyla were Proteobacteria and Actinobacteria. The microbial community of Azteca cf. depilis and Allomerus spp. differed in composition and richness. Geographical distance affected microbial communities and richness but plant species did not. Actinobacteria were only associated with Allomerus spp. |
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Biodiversity Genomics Team, Plant Ecophysiology & Evolution Group, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Daxuedonglu 100, Nanning, Guangxi 530005, China |
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Mdpi Ag |
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20754450 (Issn) |
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Export Date: 18 November 2019; Correspondence Address: Ruiz-González, M.X.; Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Ecuador; email: marioxruizgonzalez@gmail.com |
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Soong, J.L.; Janssens, I.A.; Grau, O.; Margalef, O.; Stahl, C.; Van Langenhove, L.; Urbina, I.; Chave, J.; Dourdain, A.; Ferry, B.; Freycon, V.; Herault, B.; Sardans, J.; Peñuelas, J.; Verbruggen, E. |
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Soil properties explain tree growth and mortality, but not biomass, across phosphorus-depleted tropical forests |
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Journal Article |
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2020 |
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Scientific reports |
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Sci Rep |
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10 |
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2302 |
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We observed strong positive relationships between soil properties and forest dynamics of growth and mortality across twelve primary lowland tropical forests in a phosphorus-poor region of the Guiana Shield. Average tree growth (diameter at breast height) increased from 0.81 to 2.1 mm yr-1 along a soil texture gradient from 0 to 67% clay, and increasing metal-oxide content. Soil organic carbon stocks in the top 30 cm ranged from 30 to 118 tons C ha-1, phosphorus content ranged from 7 to 600 mg kg-1 soil, and the relative abundance of arbuscular mycorrhizal fungi ranged from 0 to 50%, all positively correlating with soil clay, and iron and aluminum oxide and hydroxide content. In contrast, already low extractable phosphorus (Bray P) content decreased from 4.4 to <0.02 mg kg-1 in soil with increasing clay content. A greater prevalence of arbuscular mycorrhizal fungi in more clayey forests that had higher tree growth and mortality, but not biomass, indicates that despite the greater investment in nutrient uptake required, soils with higher clay content may actually serve to sustain high tree growth in tropical forests by avoiding phosphorus losses from the ecosystem. Our study demonstrates how variation in soil properties that retain carbon and nutrients can help to explain variation in tropical forest growth and mortality, but not biomass, by requiring niche specialization and contributing to biogeochemical diversification across this region. |
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Institut National Polytechnique Félix Houphouët-Boigny, Ivory CoastYamoussoukro, Cote d'Ivoire |
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NLM (Medline) |
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20452322 (Issn) |
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EcoFoG @ webmaster @ |
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916 |
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Denis, T.; Richard-Hansen, C.; Brunaux, O.; Guitet, S.; Hérault, B. |
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Birds of a feather flock together: Functionally similar vertebrates positively co-occur in Guianan forests |
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Journal Article |
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2019 |
Publication |
Ecosphere |
Abbreviated Journal |
Ecosphere |
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10 |
Issue |
3 |
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e02566 |
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activity matching; birds; Guiana Shield; information exchange; mammals; mixed-species associations; mutualism; terra firme rainforests |
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Medium- and large-sized vertebrates play a key role in shaping overall forest functioning. Despite this, vertebrate interactions, from competition to mutualism, remain poorly studied, even though these interactions should be taken into account in our conservation and management strategies. Thus, we tackled the question of vertebrate co-occurrence in tropical rainforests: Are (negative or positive) co-occurrences dependent on forest structure and composition? and Are these co-occurrences linked to functional species similarity? We recorded the occurrence of 21 medium- and large-sized vertebrates in 19 French Guianan locations in which a large set of forest structure and composition descriptors were collected. We used a probabilistic model to look for co-occurrences at different spatial scales, and species pairwise co-occurrences were then compared to those generated solely on the basis of forest structure and composition. We then quantified the co-occurrence strength between pairwise species dyads and determined whether they relied on species functional similarity, controlling for the environmental effects. We found that positive co-occurrences vastly outnumbered negative co-occurrences, were only partly shaped by the local environment, and were closely linked to species functional similarity. Thus, groups of species sharing similar functional traits are more prone to co-occur, highlighting the key role of functional redundancy in structuring species assemblages. We discuss how positive interactions could generate the predominance of positive co-occurrences in oligotrophic terra firme (unflooded) forests when resources are scarce and dispersed in dry season. Finally, we identified functional groups based on co-occurrence strength and suggested that frugivory/granivory and body size are of primary importance in species interactions in Neotropical vertebrate communities. © 2019 The Authors. |
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INPHB, Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Cote d'Ivoire |
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Wiley-Blackwell |
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21508925 (Issn) |
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Export Date: 16 March 2020; Correspondence Address: Denis, T.; Office National de la Chasse et de la Faune Sauvage, UMR EcoFoG (AgroParisTech, Cirad, CNRS, INRA, Université des Antilles, Université de Guyane)France; email: thomas.denis@ecofog.gf |
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EcoFoG @ webmaster @ |
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924 |
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Ramalho, M.O.; Duplais, C.; Orivel, J.; Dejean, A.; Gibson, J.C.; Suarez, A.V.; Moreau, C.S. |
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Development but not diet alters microbial communities in the Neotropical arboreal trap jaw ant Daceton armigerum: an exploratory study |
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Journal Article |
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2020 |
Publication |
Scientific Reports |
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10 |
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To better understand the evolutionary significance of symbiotic interactions in nature, microbiome studies can help to identify the ecological factors that may shape host-associated microbial communities. In this study we explored both 16S and 18S rRNA microbial communities of D. armigerum from both wild caught individuals collected in the Amazon and individuals kept in the laboratory and fed on controlled diets. We also investigated the role of colony, sample type, development and caste on structuring microbial communities. Our bacterial results (16S rRNA) reveal that (1) there are colony level differences between bacterial communities; (2) castes do not structure communities; (3) immature stages (brood) have different bacterial communities than adults; and 4) individuals kept in the laboratory with a restricted diet showed no differences in their bacterial communities from their wild caught nest mates, which could indicate the presence of a stable and persistent resident bacterial community in this host species. The same categories were also tested for microbial eukaryote communities (18S rRNA), and (5) developmental stage has an influence on the diversity recovered; (6) the diversity of taxa recovered has shown this can be an important tool to understand additional aspects of host biology and species interactions. |
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EcoFoG @ webmaster @ Ramalho2020 |
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929 |
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Gargallo-Garriga, A.; Sardans, J.; Granda, V.; Llusià, J.; Peguero, G.; Asensio, D.; Ogaya, R.; Urbina, I.; Van Langenhove, L.; Verryckt, L.T.; Chave, J.; Courtois, E.A.; Stahl, C.; Grau, O.; Klem, K.; Urban, O.; Janssens, I.A.; Peñuelas, J. |
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Different “metabolomic niches” of the highly diverse tree species of the French Guiana rainforests |
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2020 |
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Scientific Reports |
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Sci. Rep. |
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10 |
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6937 |
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article; ecological niche; French Guiana; metabolome; plant leaf; rainy season; reproduction; stress; tropical rain forest |
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Tropical rainforests harbor a particularly high plant diversity. We hypothesize that potential causes underlying this high diversity should be linked to distinct overall functionality (defense and growth allocation, anti-stress mechanisms, reproduction) among the different sympatric taxa. In this study we tested the hypothesis of the existence of a metabolomic niche related to a species-specific differential use and allocation of metabolites. We tested this hypothesis by comparing leaf metabolomic profiles of 54 species in two rainforests of French Guiana. Species identity explained most of the variation in the metabolome, with a species-specific metabolomic profile across dry and wet seasons. In addition to this “homeostatic” species-specific metabolomic profile significantly linked to phylogenetic distances, also part of the variance (flexibility) of the metabolomic profile was explained by season within a single species. Our results support the hypothesis of the high diversity in tropical forest being related to a species-specific metabolomic niche and highlight ecometabolomics as a tool to identify this species functional diversity related and consistent with the ecological niche theory. © 2020, The Author(s). |
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INRA, UMR EcoFoG, CNRS, Cirad, AgroParisTech, Université des Antilles, Université de Guyane, Kourou, 97310, France |
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Nature Research |
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20452322 (Issn) |
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EcoFoG @ webmaster @ |
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930 |
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ter Steege, H.; Prado, P.I.; Lima, R.A.F.; Pos, E.; de Souza Coelho, L.; de Andrade Lima Filho, D.; Salomão, R.P.; Amaral, I.L.; de Almeida Matos, F.D.; Castilho, C.V.; Phillips, O.L.; Guevara, J.E.; de Jesus Veiga Carim, M.; Cárdenas López, D.; Magnusson, W.E.; Wittmann, F.; Martins, M.P.; Sabatier, D.; Irume, M.V.; da Silva Guimarães, J.R.; Molino, J.-F.; Bánki, O.S.; Piedade, M.T.F.; Pitman, N.C.A.; Ramos, J.F.; Monteagudo Mendoza, A.; Venticinque, E.M.; Luize, B.G.; Núñez Vargas, P.; Silva, T.S.F.; de Leão Novo, E.M.M.; Reis, N.F.C.; Terborgh, J.; Manzatto, A.G.; Casula, K.R.; Honorio Coronado, E.N.; Montero, J.C.; Duque, A.; Costa, F.R.C.; Castaño Arboleda, N.; Schöngart, J.; Zartman, C.E.; Killeen, T.J.; Marimon, B.S.; Marimon-Junior, B.H.; Vasquez, R.; Mostacedo, B.; Demarchi, L.O.; Feldpausch, T.R.; Engel, J.; Petronelli, P.; Baraloto, C.; Assis, R.L.; Castellanos, H.; Simon, M.F.; de Medeiros, M.B.; Quaresma, A.; Laurance, S.G.W.; Rincón, L.M.; Andrade, A.; Sousa, T.R.; Camargo, J.L.; Schietti, J.; Laurance, W.F.; de Queiroz, H.L.; Nascimento, H.E.M.; Lopes, M.A.; de Sousa Farias, E.; Magalhães, J.L.L.; Brienen, R.; Aymard C, G.A.; Revilla, J.D.C.; Vieira, I.C.G.; Cintra, B.B.L.; Stevenson, P.R.; Feitosa, Y.O.; Duivenvoorden, J.F.; Mogollón, H.F.; Araujo-Murakami, A.; Ferreira, L.V.; Lozada, J.R.; Comiskey, J.A.; de Toledo, J.J.; Damasco, G.; Dávila, N.; Lopes, A.; García-Villacorta, R.; Draper, F.; Vicentini, A.; Cornejo Valverde, F.; Lloyd, J.; Gomes, V.H.F.; Neill, D.; Alonso, A.; Dallmeier, F.; de Souza, F.C.; Gribel, R.; Arroyo, L.; Carvalho, F.A.; de Aguiar, D.P.P.; do Amaral, D.D.; Pansonato, M.P.; Feeley, K.J.; Berenguer, E.; Fine, P.V.A.; Guedes, M.C.; Barlow, J.; Ferreira, J.; Villa, B.; Peñuela Mora, M.C.; Jimenez, E.M.; Licona, J.C.; Cerón, C.; Thomas, R.; Maas, P.; Silveira, M.; Henkel, T.W.; Stropp, J.; Paredes, M.R.; Dexter, K.G.; Daly, D.; Baker, T.R.; Huamantupa-Chuquimaco, I.; Milliken, W.; Pennington, T.; Tello, J.S.; Pena, J.L.M.; Peres, C.A.; Klitgaard, B.; Fuentes, A.; Silman, M.R.; Di Fiore, A.; von Hildebrand, P.; Chave, J.; van Andel, T.R.; Hilário, R.R.; Phillips, J.F.; Rivas-Torres, G.; Noronha, J.C.; Prieto, A.; Gonzales, T.; de Sá Carpanedo, R.; Gonzales, G.P.G.; Gómez, R.Z.; de Jesus Rodrigues, D.; Zent, E.L.; Ruschel, A.R.; Vos, V.A.; Fonty, É.; Junqueira, A.B.; Doza, H.P.D.; Hoffman, B.; Zent, S.; Barbosa, E.M.; Malhi, Y.; de Matos Bonates, L.C.; de Andrade Miranda, I.P.; Silva, N.; Barbosa, F.R.; Vela, C.I.A.; Pinto, L.F.M.; Rudas, A.; Albuquerque, B.W.; Umaña, M.N.; Carrero Márquez, Y.A.; van der Heijden, G.; Young, K.R.; Tirado, M.; Correa, D.F.; Sierra, R.; Costa, J.B.P.; Rocha, M.; Vilanova Torre, E.; Wang, O.; Oliveira, A.A.; Kalamandeen, M.; Vriesendorp, C.; Ramirez-Angulo, H.; Holmgren, M.; Nascimento, M.T.; Galbraith, D.; Flores, B.M.; Scudeller, V.V.; Cano, A.; Ahuite Reategui, M.A.; Mesones, I.; Baider, C.; Mendoza, C.; Zagt, R.; Urrego Giraldo, L.E.; Ferreira, C.; Villarroel, D.; Linares-Palomino, R.; Farfan-Rios, W.; Farfan-Rios, W.; Casas, L.F.; Cárdenas, S.; Balslev, H.; Torres-Lezama, A.; Alexiades, M.N.; Garcia-Cabrera, K.; Valenzuela Gamarra, L.; Valderrama Sandoval, E.H.; Ramirez Arevalo, F.; Hernandez, L.; Sampaio, A.F.; Pansini, S.; Palacios Cuenca, W.; de Oliveira, E.A.; Pauletto, D.; Levesley, A.; Melgaço, K.; Pickavance, G. |
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Title |
Biased-corrected richness estimates for the Amazonian tree flora |
Type |
Journal Article |
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Year |
2020 |
Publication |
Scientific Reports |
Abbreviated Journal |
Sci. Rep. |
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10 |
Issue |
10130 |
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adult; article; averaging; flora; forest; population abundance |
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Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended database of forest plots with up-to-date taxonomy. We show that the species abundance distribution of Amazonia is best approximated by a logseries with aggregated individuals, where aggregation increases with rarity. By averaging several methods to estimate total richness, we confirm that over 15,000 tree species are expected to occur in Amazonia. We also show that using ten times the number of plots would result in an increase to just ~50% of those 15,000 estimated species. To get a more complete sample of all tree species, rigorous field campaigns may be needed but the number of trees in Amazonia will remain an estimate for years to come. © 2020, The Author(s). |
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Instituto de Biodiversidade e Floresta, Universidade Federal do Oeste do Pará, Rua Vera Paz, Campus Tapajós, Santarém, PA 68015-110, Brazil |
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Nature Research |
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20452322 (Issn) |
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EcoFoG @ webmaster @ |
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946 |
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