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| Author | Rutishauser, E.; Herault, B.; Baraloto, C.; Blanc, L.; Descroix, L.; Sotta, E.D.; Ferreira, J.; Kanashiro, M.; Mazzei, L.; D'Oliveira, M.V.N.; De Oliveira, L.C.; Peña-Claros, M.; Putz, F.E.; Ruschel, A.R.; Rodney, K.; Roopsind, A.; Shenkin, A.; Da Silva, K.E.; De Souza, C.R.; Toledo, M.; Vidal, E.; West, T.A.P.; Wortel, V.; Sist, P. | ||||
| Title | Rapid tree carbon stock recovery in managed Amazonian forests | Type | Journal Article | ||
| Year | 2015 | Publication | Current Biology | Abbreviated Journal | Current Biology |
| Volume | 25 | Issue | 18 | Pages  |
R787-R788 |
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| Abstract | Summary While around 20% of the Amazonian forest has been cleared for pastures and agriculture, one fourth of the remaining forest is dedicated to wood production [1]. Most of these production forests have been or will be selectively harvested for commercial timber, but recent studies show that even soon after logging, harvested stands retain much of their tree-biomass carbon and biodiversity [2,3]. Comparing species richness of various animal taxa among logged and unlogged forests across the tropics, Burivalova et al.[4] found that despite some variability among taxa, biodiversity loss was generally explained by logging intensity (the number of trees extracted). Here, we use a network of 79 permanent sample plots (376 ha total) located at 10 sites across the Amazon Basin [5] to assess the main drivers of time-to-recovery of post-logging tree carbon (Table S1). Recovery time is of direct relevance to policies governing management practices (i.e., allowable volumes cut and cutting cycle lengths), and indirectly to forest-based climate change mitigation interventions. © 2015 Elsevier Ltd. | ||||
| Address | Biodiversity Department, CELOS, Paramaribo, Paramaribo, Suriname | ||||
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| Area | Expedition | Conference | |||
| Notes | Export Date: 2 October 2015 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 626 | ||
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| Author | Gourlet-Fleury, S.; Blanc, L.; Picard, N.; Sist, P.; Dick, J.; Nasi, R.; Swaine, M.D.; Forni, E. | ||||
| Title | Grouping species for predicting mixed tropical forest dynamics: looking for a strategy | Type | Journal Article | ||
| Year | 2005 | Publication | Annals of Forest Science | Abbreviated Journal | Ann. For. Sci. |
| Volume | 62 | Issue | 8 | Pages |
785-796 |
| Keywords | cross-comparisons; functional groups; modelling strategy; species classifications | ||||
| Abstract | The high species diversity of mixed tropical forests hinders the development of forest dynamic models. A solution commonly adopted is to cluster species in groups. There are various methods for grouping species that can be linked to three strategies (i) the ecological subjective strategy, (ii) the ecological data-driven strategy, and (iii) the dynamic process strategy. In the first two strategies a species will be assigned to a single group while in the latter strategy, a specific grouping is defined for each process of population dynamics ( typically based on recruitment, growth, mortality). Little congruency or convergence is observed in the literature between any two classifications of species. This may be explained by the independence between the sets of tree characters used to build species groups, or by the intra-specific variability of these characters. We therefore recommend the dynamic process strategy as the most convenient strategy for building groups of species. | ||||
| Address | Cirad Foret, F-34398 Montpellier, France, Email: sylvie.gourlet-fleury@cirad.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | EDP SCIENCES S A | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1286-4560 | ISBN | Medium | ||
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| Notes | ISI:000233972500001 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 228 | ||
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| Author | Courtois, E. A.; Stahl, C.; Burban, B.; Van Den Berge, J.; Berveiller, D.; Bréchet, L.; Larned Soong, J.; Arriga, N.; Peñuelas, J.; August Janssens, I. | ||||
| Title | Automatic high-frequency measurements of full soil greenhouse gas fluxes in a tropical forest | Type | Journal Article | ||
| Year | 2019 | Publication | Biogeosciences | Abbreviated Journal | Biogeosciences |
| Volume | 16 | Issue | 3 | Pages |
785-796 |
| Keywords | |||||
| Abstract | Measuring in situ soil fluxes of carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) continuously at high frequency requires appropriate technology. We tested the combination of a commercial automated soil CO 2 flux chamber system (LI-8100A) with a CH 4 and N 2 O analyzer (Picarro G2308) in a tropical rainforest for 4 months. A chamber closure time of 2 min was sufficient for a reliable estimation of CO 2 and CH 4 fluxes (100% and 98.5% of fluxes were above minimum detectable flux – MDF, respectively). This closure time was generally not suitable for a reliable estimation of the low N 2 O fluxes in this ecosystem but was sufficient for detecting rare major peak events. A closure time of 25 min was more appropriate for reliable estimation of most N 2 O fluxes (85.6% of measured fluxes are above MDF±0.002 nmolm -2 s -1 ). Our study highlights the importance of adjusted closure time for each gas. © Author(s) 2019. | ||||
| Address | CREAF, Cerdanyola Del Vallès, Catalonia, 08193, Spain | ||||
| Corporate Author | Thesis | ||||
| Publisher | Copernicus GmbH | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| ISSN | 17264170 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 25 February 2019; Correspondence Address: Alice Courtois, E.; Department of Biology University of Antwerp, Centers of Excellence Global Change Ecology and PLECO (Plants and Ecosystems), Universiteitsplein 1, Belgium; email: courtoiselodie@gmail.com; Funding details: Centre de Coopération Internationale en Recherche Agronomique pour le Développement, CIRAD; Funding details: European Research Council, ERC, ERC-2013-SyG 610028-IMBALANCE-P; Funding details: ANR-10-LABX-25-01, ANR-11-INBS-0001; Funding details: U.S. Department of Energy, DOE, DE-AC02-05CH11231; Funding details: Agence Nationale de la Recherche, ANR; Funding details: Institut National de la Recherche Agronomique, INRA; Funding details: Fonds Wetenschappelijk Onderzoek, FWO; Funding text 1: Acknowledgements. This research was supported by the European Research Council Synergy grant ERC-2013-SyG 610028-IMBALANCE-P. We thank Jan Segers for help in the initial setting of the system and Renato Winkler from Picarro and Rod Madsen and Jason Hupp from LI-COR for their help in combining the systems. We thank the staff of Paracou station, managed by UMR Ecofog (CIRAD, INRA; Kourou), which received support from “Investissement d’Avenir” grants managed by Agence Nationale de la Recherche (CEBA: ANR-10-LABX-25-01, ANAEE-France: ANR-11-INBS-0001). This study was conducted in collaboration with the Guyaflux program belonging to SOERE F-ORE-T, which is supported annually by Ecofor, Allenvi, and the French national research infrastructure, ANAEE-F. This program also received support from an “investissement d’avenir” grant from the Agence Nationale de la Recherche (CEBA, ref ANR-10-LABX-25-01). Ivan August Janssens acknowledges support from Antwerp University (Methusalem funding), Nicola Arriga from ICOS-Belgium and Fonds Wetenschappelijk Onderzoek (FWO), and Jennifer Larned Soong from the U.S. Department of Energy under contract DE-AC02-05CH11231.; References: 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? (2018) Agr. Forest Meteorol, 253, pp. 114-123; Ambus, P., Skiba, U., Drewer, J., Jones, S., Carter, M.S., Albert, K.R., Sutton, M., Development of an accumulation-based system for cost-effective chamber measurements of inert trace gas fluxes (2010) Eur. J. Soil Sci, 61, pp. 785-792; Arias-Navarro, C., Díaz-Pinés, E., Klatt, S., Brandt, P., Rufino, M.C., Butterbach-Bahl, K., Verchot, L., Spatial variability of soil N2O and CO2 fluxes in different topographic positions in a tropical montane forest in Kenya (2017) J. Geophys. Res.-Biogeo, 122, pp. 514-527; Bonal, D., Bosc, A., Ponton, S., Goret, J.Y., Burban, B., Gross, P., Bonnefond, J., Epron, D., Impact of severe dry season on net ecosystem exchange in the Neotropical rainforest of French Guiana (2008) Glob. Change Biol, 14, pp. 1917-1933; Bréchet, L., Ponton, S., Roy, J., Freycon, V., Coteaux, M.-M., Bonal, D., Epron, D., Do tree species characteristics influence soil respiration in tropical forests? A test based on 16 tree species planted in monospecific plots (2009) Plant Soil, 319, pp. 235-246; Breuer, L., Papen, H., Butterbach-Bahl, K., N2O emission from tropical forest soils of Australia (2000) J. Geophys. Res.-Atmos, 105, pp. 26353-26367; Christiansen, J.R., Outhwaite, J., Smukler, S.M., Comparison of CO2, CH4 and N2O soil-Atmosphere exchange measured in static chambers with cavity ring-down spectroscopy and gas chromatography (2015) Agr. Forest Meteorol, 211, pp. 48-57; Courtois, E.A., Stahl, C., Dataset from Automatic high-frequency measurements of full soil greenhouse gas fluxes in a tropical forest (2019) Biogeosciences, 2019. , https://doi.org/10.5281/zenodo.2555299; Courtois, E.A., Stahl, C., Van Den Berge, J., Bréchet, L., Van Langenhove, L., Richter, A., Urbina, I., Janssens, I.A., Spatial variation of soil CO2, CH4 and N2O fluxes across topographical positions in tropical forests of the Guiana Shield (2018) Ecosystems, 21, pp. 1445-1458; Davidson, E., Savage, K., Verchot, L., Navarro, R., Minimizing artifacts and biases in chamber-based measurements of soil respiration (2002) Agr. Forest Meteorol, 113, pp. 21-37; Davidson, E.A., Nepstad, D.C., Ishida, F.Y., Brando, P.M., Effects of an experimental drought and recovery on soil emissions of carbon dioxide, methane, nitrous oxide, and nitric oxide in a moist tropical forest (2008) Glob. Change Biol, 14, pp. 2582-2590; De Klein, C., Harvey, M., (2012) Nitrous Oxide Chamber Methodology Guidelines, , Ministry for Primary Industries, Wellington, New Zealand; Denmead, O., Chamber systems for measuring nitrous oxide emission from soils in the field (1979) Soil Sci. Soc. Am. J, 43, pp. 89-95; Dutaur, L., Verchot, L.V., A global inventory of the soil CH4 sink (2007) Glob. Biogeochem. Cy, p. 21. , https://doi.org/10.1029/2006GB002734; Epron, D., Bosc, A., Bonal, D., Freycon, V., Spatial variation of soil respiration across a topographic gradient in a tropical rain forest in French Guiana (2006) J. Trop. Ecol, 22, pp. 565-574; (1998) World Reference Base for Soil Resources, , FAO/ ISRIC/ISSS.FAO, ISRIC, ISSS, World Soil Resources Reports 84, Rome; Görres, C.-M., Kammann, C., Ceulemans, R., Automation of soil flux chamber measurements, potentials and pitfalls (2016) Biogeosciences, 13, pp. 1949-1966. , https://doi.org/10.5194/bg-13-1949-2016; Hupp, J.R., Garcia, R.L., Madsen, R., McDermitt, D.K., Measurement of CO2 evolution in a multiplexed flask system (2009) Amer. Soc. Horticultural Science, Alexandria USA, 44, pp. 1143-1143; Janssens, I.A., Kowalski, A.S., Longdoz, B., Ceulemans, R., Assessing forest soil CO2 efflux, an in-situ comparison of four techniques (2000) Tree Physiol, 20, pp. 23-32; Koskinen, M., Minkkinen, K., Ojanen, P., Kämäräinen, M., Laurila, T., Lohila, A., Measurements of CO2 exchange with an automated chamber system throughout the year, challenges in measuring night-Time respiration on porous peat soil (2014) Biogeosciences, 11, pp. 347-363. , https://doi.org/10.5194/bg-11-347-2014; Kostyanovsky, K., Huggins, D., Stockle, C., Waldo, S., Lamb, B., Developing a flow through chamber system for automated measurements of soil N2O and CO2 emissions (2018) Measurement, 113, pp. 172-180; Merbold, L., Wohlfahrt, G., Butterbach-Bahl, K., Pilegaard, K., DelSontro, T., Stoy, P., Zona, D., Preface, Towards a full greenhouse gas balance of the biosphere (2015) Biogeosciences, 12, pp. 453-456. , https://doi.org/10.5194/bg-12-453-2015; Nickerson, N., (2016) Evaluating Gas Emission Measurements Using Minimum Detectable Flux (MDF), , Eosense Inc., Dartmouth, Nova Scotia, Canada; Nicolini, G., Castaldi, S., Fratini, G., Valentini, R., A literature overview of micrometeorological CH4 and N2O flux measurements in terrestrial ecosystems (2013) Atmos. Environ, 81, pp. 311-319; O'Connell, C.S., Ruan, L., Silver, W.L., Drought drives rapid shifts in tropical rainforest soil biogeochemistry and greenhouse gas emissions (2018) Nat. Commun, 9, p. 1348. , https://doi.org/10.1038/s41467-018-03352; Oertel, C., Matschullat, J., Zurba, K., Zimmermann, F., Erasmi, S., Greenhouse gas emissions from soils-A review (2016) Chem. Erde-Geochem, 76, pp. 327-352; Petitjean, C., Hénault, C., Perrin, A.-S., Pontet, C., Metay, A., Bernoux, M., Jehanno, T., Roggy, J.-C., Soil N2O emissions in French Guiana after the conversion of tropical forest to agriculture with the chop-And-mulch method (2015) Agr. Ecosyst. Environ, 208, pp. 64-74; Petrakis, S., Seyfferth, A., Kan, J., Inamdar, S., Vargas, R., Influence of experimental extreme water pulses on greenhouse gas emissions from soils (2017) Biogeochemistry, 133, pp. 147-164; Petrakis, S., Barba, J., Bond-Lamberty, B., Vargas, R., Using greenhouse gas fluxes to define soil functional types (2017) Plant Soil, pp. 1-10; Pumpanen, J., Kolari, P., Ilvesniemi, H., Minkkinen, K., Vesala, T., Niinistö, S., Lohila, A., Pihlatie, M., Comparison of different chamber techniques for measuring soil CO2 efflux (2004) Agr. Forest Meteorol, 123, pp. 159-176; Rowland, L., Hill, T.C., Stahl, C., Siebicke, L., Burban, B., Zaragoza-Castells, J., Ponton, S., Williams, M., Evidence for strong seasonality in the carbon storage and carbon use efficiency of an Amazonian forest (2014) Glob. Change Biol, 20, pp. 979-991; Rubio, V.E., Detto, M., Spatiotemporal variability of soil respiration in a seasonal tropical forest (2017) Ecol. Evol, 7, pp. 7104-7116; Savage, K., Phillips, R., Davidson, E., High temporal frequency measurements of greenhouse gas emissions from soils (2014) Biogeosciences, 11, pp. 2709-2720. , https://doi.org/10.5194/bg-11-2709-2014; Silver, W.L., Lugo, A., Keller, M., Soil oxygen availability and biogeochemistry along rainfall and topographic gradients in upland wet tropical forest soils (1999) Biogeochemistry, 44, pp. 301-328; Teh, Y.A., Diem, T., Jones, S., Huaraca Quispe, L.P., Baggs, E., Morley, N., Richards, M., Meir, P., Methane and nitrous oxide fluxes across an elevation gradient in the tropical Peruvian Andes (2014) Biogeosciences, 11, pp. 2325-2339. , https://doi.org/10.5194/bg-11-2325-2014; Verchot, L.V., Davidson, E.A., Cattânio, H., Ackerman, I.L., Erickson, H.E., Keller, M., Land use change and biogeochemical controls of nitrogen oxide emissions from soils in eastern Amazonia (1999) Global Biogeochem. Cy, 13, pp. 31-46; Verchot, L.V., Davidson, E.A., Cattânio, J.H., Ackerman, I.L., Land-use change and biogeochemical controls of methane fluxes in soils of eastern Amazonia (2000) Ecosystems, 3, pp. 41-56; Wagner, F., Hérault, B., Stahl, C., Bonal, D., Rossi, V., Modeling water availability for trees in tropical forests (2011) Agr. Forest Meteorol, 151, pp. 1202-1213 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 860 | ||
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| Author | Ollivier, M.; Baraloto, C.; Marcon, E. | ||||
| Title | A trait database for Guianan rain forest trees permits intra- and inter-specific contrasts | Type | Journal Article | ||
| Year | 2007 | Publication | Annals of Forest Science | Abbreviated Journal | Ann. For. Sci. |
| Volume | 64 | Issue | 7 | Pages |
781-786 |
| Keywords | plant traits; tropical forest; French Guiana; functional groups; plasticity; ontogeny | ||||
| Abstract | We present a plant trait database covering autecology for rain forest trees of French Guiana. The database comprises more than thirty traits including autecology (e. g., habitat associations and reproductive phenology), wood structure (e. g., density and tension characteristics) and physiology at the whole plant (e. g., carbon and nitrogen isotopes) and leaf level (e. g., specific leaf area, photosynthetic capacity). The current database describes traits for about nine hundred species from three hundred genera in one hundred families. For more than sixty species, data on twelve morphological and ecophysiological traits are provided for individual plants under different environmental conditions and at different ontogenetic stages. The database is thus unique in permitting intraspecific analyses, such as the effects of ontogenetic stages or environmental conditions on trait values and their relationships. | ||||
| Address | INRA, Unit Mixte Rech Ecol Forets Guyane, Kourou, France, Email: baraloto.c@kourou.cirad.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | EDP SCIENCES S A | Place of Publication | Editor | ||
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| ISSN | 1286-4560 | ISBN | Medium | ||
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| Notes | ISI:000250097700011 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 158 | ||
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| Author | Meyer-Sand, B.R.V.; Blanc-Jolivet, C.; Mader, M.; Paredes-Villanueva, K.; Tysklind, N.; Sebbenn, A.M.; Guichoux, E.; Degen, B. | ||||
| Title | Development of a set of SNP markers for population genetics studies of Ipe (Handroanthus sp.), a valuable tree genus from Latin America | Type | Journal Article | ||
| Year | 2018 | Publication | Conservation Genetics Resources | Abbreviated Journal | Conserv. Gen. Res. |
| Volume | 10 | Issue | 4 | Pages |
779-781 |
| Keywords | Handroanthus sp; MassARRAY; Single nucleotide polymorphism | ||||
| Abstract | 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. | ||||
| Address | Plateforme Génome Transcriptome de Bordeaux, INRA Pierroton, Bâtiment Artiga, 69 route d’Arcachon, Cestas, 33610, France | ||||
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| Publisher | Springer Netherlands | Place of Publication | Editor | ||
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| ISSN | 18777252 (Issn) | ISBN | Medium | ||
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| Notes | 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 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 832 | ||
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| Author | Lehnebach, R.; Beyer, R.; Letort, V.; Heuret, P. | ||||
| Title | The pipe model theory half a century on: a review | Type | Journal Article | ||
| Year | 2018 | Publication | Annals of Botany | Abbreviated Journal | |
| Volume | 121 | Issue | 5 | Pages |
773-795 |
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| Abstract | BackgroundMore than a half century ago, Shinozaki et al. (Shinozaki K, Yoda K, Hozumi K, Kira T. 1964a. A quantitative analysis of plant form – the pipe model theory. I. Basic analyses. Japanese Journal of Ecology B: 97–105) proposed an elegant conceptual framework, the pipe model theory (PMT), to interpret the observed linear relationship between the amount of stem tissue and corresponding supported leaves. The PMT brought a satisfactory answer to two vividly debated problems that were unresolved at the moment of its publication: (1) What determines tree form and which rules drive biomass allocation to the foliar versus stem compartments in plants? (2) How can foliar area or mass in an individual plant, in a stand or at even larger scales be estimated? Since its initial formulation, the PMT has been reinterpreted and used in applications, and has undoubtedly become an important milestone in the mathematical interpretation of plant form and functioning.ScopeThis article aims to review the PMT by going back to its initial formulation, stating its explicit and implicit properties and discussing them in the light of current biological knowledge and experimental evidence in order to identify the validity and range of applicability of the theory. We also discuss the use of the theory in tree biomechanics and hydraulics as well as in functional–structural plant modelling.ConclusionsScrutinizing the PMT in the light of modern biological knowledge revealed that most of its properties are not valid as a general rule. The hydraulic framework derived from the PMT has attracted much more attention than its mechanical counterpart and implies that only the conductive portion of a stem cross-section should be proportional to the supported foliage amount rather than the whole of it. The facts that this conductive portion is experimentally difficult to measure and varies with environmental conditions and tree ontogeny might cause the commonly reported non-linear relationships between foliage and stem metrics. Nevertheless, the PMT can still be considered as a portfolio of properties providing a unified framework to integrate and analyse functional–structural relationships. | ||||
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| ISSN | 0305-7364 | ISBN | Medium | ||
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| Notes | 10.1093/aob/mcx194 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 801 | ||
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| Author | Stahl, C.; Burban, B.; Goret, J.Y.; Bonal, D. | ||||
| Title | Seasonal variations in stem CO(2) efflux in the Neotropical rainforest of French Guiana | Type | Journal Article | ||
| Year | 2011 | Publication | Annals of Forest Science | Abbreviated Journal | Ann. For. Sci. |
| Volume | 68 | Issue | 4 | Pages |
771-782 |
| Keywords | Tropical rainforest; Stem CO(2) efflux; Soil water content; Terra Firme forest; Seasonally flooded forest | ||||
| Abstract | Introduction Stem CO(2) efflux (E (s)) is a significant component of total ecosystem respiration, but there is only scant information on seasonal variations in E (s) in tropical rainforests and on the main factors explaining these variations. Methods We conducted a comprehensive 18-month study in French Guiana to try to better understand which environmental factors contribute to seasonal variations in E (s) in two habitats differing in soil water conditions. Results In both habitats, large seasonal variations in E (s) were observed for most trees. The main variations occurred during climatic transition periods and were consistent with seasonal variations in soil and total ecosystem respiration. Discussion Seasonal variations in atmospheric conditions, including air temperature, did not explain seasonal variations in E (s). In contrast, seasonal variations in surface soil water content clearly induced seasonal variations in E (s) in each habitat. Both soil drought and flooded conditions induced a decrease in E (s). Conclusion Our results emphasize the need to integrate the influence of soil water content on E (s) into global models that simulate the response of forest ecosystem fluxes to climate changes. | ||||
| Address | [Bonal, D] INRA, UMR INRA UHP Ecol & Ecophysiol Forestiere 1137, F-54280 Champenoux, France, Email: bonal@nancy.inra.fr | ||||
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| Publisher | Springer France | Place of Publication | Editor | ||
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| ISSN | 1286-4560 | ISBN | Medium | ||
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| Notes | WOS:000292553400011 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 327 | ||
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| Author | Talaga, S.; Dejean, A.; Carinci, R.; Gaborit, P.; Dusfour, I.; Girod, R. | ||||
| Title | Updated Checklist of the Mosquitoes (Diptera: Culicidae) of French Guiana | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of Medical Entomology | Abbreviated Journal | Journal of Medical Entomology |
| Volume | 52 | Issue | 5 | Pages |
770-782 |
| Keywords | culicid; Neotropics; South America; species checklist; vector | ||||
| Abstract | The incredible mosquito species diversity in the Neotropics can provoke major confusion during vector control programs when precise identification is needed. This is especially true in French Guiana where studies on mosquito diversity practically ceased 35 yr ago. In order to fill this gap, we propose here an updated and comprehensive checklist of the mosquitoes of French Guiana, reflecting the latest changes in classification and geographical distribution and the recognition of current or erroneous synonymies. This work was undertaken in order to help ongoing and future research on mosquitoes in a broad range of disciplines such as ecology, biogeography, and medical entomology. Thirty-two valid species cited in older lists have been removed, and 24 species have been added including 12 species (comprising two new genera and three new subgenera) reported from French Guiana for the first time. New records are from collections conducted on various phytotelmata in French Guiana and include the following species: Onirion sp. cf Harbach and Peyton (2000), Sabethes (Peytonulus) hadrognathus Harbach, Sabethes (Peytonulus) paradoxus Harbach, Sabethes (Peytonulus) soperi Lane and Cerqueira, Sabethes (Sabethinus) idiogenes Harbach, Sabethes (Sabethes) quasicyaneus Peryassú , Runchomyia (Ctenogoeldia) magna (Theobald), Wyeomyia (Caenomyiella) sp. cf Harbach and Peyton (1990), Wyeomyia (Dendromyia) ypsipola Dyar, Wyeomyia (Hystatomyia) lamellata (Bonne-Wepster and Bonne), Wyeomyia (Miamyia) oblita (Lutz), and Toxorhynchites (Lynchiella) guadeloupensis (Dyar and Knab). At this time, the mosquitoes of French Guiana are represented by 235 species distributed across 22 genera, nine tribes, and two subfamilies. | ||||
| Address | UnitÉ d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur, Cayenne Cedex, France | ||||
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| Notes | Export Date: 22 October 2015 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 636 | ||
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| Author | Lang, G.; Marcon, E. | ||||
| Title | Testing randomness of spatial point patterns with the Ripley statistic | Type | Journal Article | ||
| Year | 2013 | Publication | ESAIM: Probability and Statistics | Abbreviated Journal | ESAIM PS |
| Volume | 17 | Issue | Pages |
767-788 | |
| Keywords | Central limit theorem, goodness-of-fit test, Höffding decomposition, null, point pattern, Poisson process, null | ||||
| Abstract | Aggregation patterns are often visually detected in sets of location data. These clusters may be the result of interesting dynamics or the effect of pure randomness. We build an asymptotically Gaussian test for the hypothesis of randomness corresponding to a homogeneous Poisson point process. We first compute the exact first and second moment of the Ripley K-statistic under the homogeneous Poisson point process model. Then we prove the asymptotic normality of a vector of such statistics for different scales and compute its covariance matrix. From these results, we derive a test statistic that is chi-square distributed. By a Monte-Carlo study, we check that the test is numerically tractable even for large data sets and also correct when only a hundred of points are observed | ||||
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 518 | ||
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| Author | Ghislain, B.; Engel, J.; Clair, B.; Donaldson, L.; Baas, P. | ||||
| Title | Diversity of anatomical structure of tension wood among 242 tropical tree species | Type | Journal Article | ||
| Year | 2019 | Publication | IAWA Journal | Abbreviated Journal | |
| Volume | 40 | Issue | 4 | Pages |
765-784 |
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| Abstract | Angiosperm trees produce tension wood to actively control their vertical position. Tension wood has often been characterised by the presence of an unlignified inner fibre wall layer called the G-layer. Using this definition, previous reports indicate that only one-third of all tree species have tension wood with G-layers. Here we aim to (i) describe the large diversity of tension wood anatomy in tropical tree species, taking advantage of the recent understanding of tension wood anatomy and (ii) explore any link between this diversity and other ecological traits of the species. We sampled tension wood and normal wood in 432 trees from 242 species in French Guiana. The samples were observed using safranin and astra blue staining combined with optical microscopy. Species were assigned to four anatomical groups depending on the presence/absence of G-layers, and their degree of lignification. The groups were analysed for functional traits including wood density and light preferences. Eighty-six% of the species had G-layers in their tension wood which was lignified in most species, with various patterns of lignification. Only a few species did not have G-layers. We found significantly more species with lignified G-layers among shade-tolerant and shade-demanding species as well as species with a high wood density. Our results bring up-to-date the incidence of species with/without G-layers in the tropical lowland forest where lignified G-layers are the most common anatomy of tension wood. Species without G-layers may share a common mechanism with the bark motor taking over the wood motor. We discuss the functional role of lignin in the G-layer. | ||||
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| Publisher | Brill | Place of Publication | Leiden, The Netherlands | Editor | |
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 903 | ||
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