| Home | [1–10] << 11 12 13 14 15 16 17 18 19 20 >> [21–30] |
|
| Records | |||||
|---|---|---|---|---|---|
| Author | Vergne, Antoine ; Darbot, Vincent ; Bardot, Corinne ; Enault, François ; Le Jeune, Anne-Hélène ; Carrias, Jean-François ; Corbara, Bruno ; Céréghino, Régis ; Leroy, Celine ; Jeanthon, Christian ; Giraud, Eric ; Mary, Isabelle ; Lehours, Anne-Catherine | ||||
Title  |
Assemblages of anoxygenic phototrophic bacteria in tank bromeliads exhibit a host-specific signatureit | Type | Journal Article | ||
| Year | 2021 | Publication | Journal of Ecology | Abbreviated Journal | |
| Volume | 109 | Issue | 7 | Pages | 2550-2565 |
| Keywords | |||||
| Abstract | Anoxygenic phototrophic bacteria (APB) are a very significant metabolic functional group in the phytotelmata of tank-forming Bromeliaceae plants. Considering the close relationships existing between the bromeliad and its tank microbiota, the dominance of APB raises the question of their role in the ecology and evolution of these plants. Here, using pufM gene sequencing for taxonomic profiling, we investigated the structure of APB communities in the tanks of five bromeliad species exhibiting different habitat characteristics (i.e. physicochemical factors associated with the host), and occurring in different localities of French Guiana.
We found that APB assemblages were specific to plant species and were less dependent on location or on bromeliad habitat characteristics. This convergence suggests that the identity of the bromeliad species per se is more important than habitat filtering or dispersal to control specific assembly rules for APB. The pufM OTUs were affiliated with five orders of Alpha- and Beta-proteobacteria (Rhodobacterales, Sphingomonadales, Rhizobiales, Burkholderiales and Rhodospirillales), and we assume that they may be major components of the core microbiota of plant-held waters. Our findings also revealed that up to 79% of the sequences were affiliated with APB clades possessing nitrogen-fixing genes suggesting that this metabolic capability is widespread within the APB community inhabiting tank bromeliads. We hypothesized that bromeliads may benefit nutritionally from associations with free-living APB capable to fix atmospheric nitrogen. Synthesis. Understanding the dominance of APB in tank bromeliads and determining whether a potential interplay exists between these partners is an intriguing aspect of possible mutualistic and coevolving interactions between the two existing forms of chlorophototrophy (i.e. bacteriochlorophyll-based anoxygenic and chlorophyll-based oxygenic phototrophy). In the present study, we found that bromeliad species was the main factor that explained variance in APB community composition. These findings suggest that APB and tank bromeliads may have a close, mutualistic relationship and we hypothesize according to our genomic analyses that APB may promote the bromeliad growth by provisioning essential nutrients like nitrogen. |
||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | British Ecological Society | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 1023 | ||
| Permanent link to this record | |||||
| Author | Chanson, Anaïs ; Moreau, Corrie S. ; Duplais, Christophe | ||||
| Title |
Assessing Biosynthetic Gene Cluster Diversity of Specialized Metabolites in the Conserved Gut Symbionts of Herbivorous Turtle Ants | Type | Journal Article | ||
| Year | 2021 | Publication | Frontiers in Microbiology | Abbreviated Journal | |
| Volume | 12 | Issue | Pages | 678100 | |
| Keywords | insect-microbe mutualism, ants, metagemonic, biosynthetic gene cluster, gut bacteria, Cephalotes | ||||
| Abstract | Cephalotes are herbivorous ants (>115 species) feeding on low-nitrogen food sources, and they rely on gut symbionts to supplement their diet by recycling nitrogen food waste into amino acids. These conserved gut symbionts, which encompass five bacterial orders, have been studied previously for their primary nitrogen metabolism; however, little is known about their ability to biosynthesize specialized metabolites which can play a role in bacterial interactions between communities living in close proximity in the gut. To evaluate the biosynthetic potential of their gut symbionts, we mine 14 cultured isolate genomes and gut metagenomes across 17 Cephalotes species to explore the biodiversity of biosynthetic gene clusters (BGCs) producing specialized metabolites. The diversity of BGCs across Cephalotes phylogeny was analyzed using sequence similarity networking and BGC phylogenetic reconstruction. Our results reveal that the conserved gut symbionts involved in the nutritional symbiosis possess 80% of all the 233 BGCs retrieved in this work. Furthermore, the phylogenetic analysis of BGCs reveals different patterns of distribution, suggesting different mechanisms of conservation. A siderophore BGC shows high similarity in a single symbiont across different ant host species, whereas a BGC encoding the production of non-ribosomal peptides (NRPs) found different symbionts within a single host species. Additionally, BGCs were abundant in four of the five bacterial orders of conserved symbionts co-occurring in the hindgut. However, one major symbiont localized alone in the midgut lack BGCs. Because the spatial isolation prevents direct interaction with other symbionts, this result supports the idea that BGCs are maintained in bacteria living in close proximity but are dispensable for an alone-living symbiont. These findings together pave the way for studying the mechanisms of BGC conservation and evolution in gut bacterial genomes associated with Cephalotes. This work also provides a genetic background for further study, aiming to characterize bacterial specialized metabolites and to understand their functional role in multipartite mutualisms between conserved gut symbionts and Cephalotes turtle ants. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Frontiers Media | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 1049 | ||
| Permanent link to this record | |||||
| Author | Coste, S.; Baraloto, C.; Leroy, C.; Marcon, E.; Renaud, A.; Richardson, A.D.; Roggy, J.C.; Schimann, H.; Uddling, J.; Herault, B. | ||||
| Title |
Assessing foliar chlorophyll contents with the SPAD-502 chlorophyll meter: a calibration test with thirteen tree species of tropical rainforest in French Guiana | Type | Journal Article | ||
| Year | 2010 | Publication | Annals of Forest Science | Abbreviated Journal | Ann. For. Sci. |
| Volume | 67 | Issue | 6 | Pages | 607 |
| Keywords | chlorophyll estimate; model calibration; homographic functions; neotropical trees | ||||
| Abstract | Chlorophyll meters such as the SPAD-502 offer a simple, inexpensive and rapid method to estimate foliar chlorophyll content. However, values provided by SPAD-502 are unitless and require empirical calibrations between SPAD units and extracted chlorophyll values. Leaves of 13 tree species from the tropical rain forest in French Guiana were sampled to select the most appropriate calibration model among the often-used linear, polynomial and exponential models, in addition to a novel homographic model that has a natural asymptote. The homographic model best accurately predicted total chlorophyll content (mu g cm(-2)) from SPAD units (R-2 = 0.89). Interspecific differences in the homographic model parameters explain less than 7% of the variation in chlorophyll content in our data set. The utility of the general homographic model for a variety of research and management applications clearly outweighs the slight loss of model accuracy due to the abandon of the species' effect. | ||||
| Address | [Herault, Bruno] Univ Antilles Guyane, Unite Mixte Rech Ecol Forets Guyane, Kourou, France, Email: bruno.herault@ecofog.gf | ||||
| Corporate Author | Thesis | ||||
| Publisher | EDP SCIENCES S A | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1286-4560 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000282350300007 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 40 | ||
| Permanent link to this record | |||||
| Author | Chaves, C.L.; Degen, B.; Pakull, B.; Mader, M.; Honorio, E.; Ruas, P.; Tysklind, N.; Sebbenn, A.M. | ||||
| Title |
Assessing the Ability of Chloroplast and Nuclear DNA Gene Markers to Verify the Geographic Origin of Jatoba (Hymenaea courbaril L.) Timber | Type | Journal Article | ||
| Year | 2018 | Publication | Journal of Heredity | Abbreviated Journal | |
| Volume | 109 | Issue | 5 | Pages | 543-552 |
| Keywords | forensics; illegal logging; nSSRs; SNPs; timber tracking; tropical trees | ||||
| Abstract | Deforestation-reinforced by illegal logging-is a serious problem in many tropical regions and causes pervasive environmental and economic damage. Existing laws that intend to reduce illegal logging need efficient, fraud resistant control methods. We developed a genetic reference database for Jatoba (Hymenaea courbaril), an important, high value timber species from the Neotropics. The data set can be used for controls on declarations of wood origin. Samples from 308 Hymenaea trees from 12 locations in Brazil, Bolivia, Peru, and French Guiana have been collected and genotyped on 10 nuclear microsatellites (nSSRs), 13 chloroplast SNPs (cpSNP), and 1 chloroplast indel marker. The chloroplast gene markers have been developed using Illumina DNA sequencing. Bayesian cluster analysis divided the individuals based on the nSSRs into 8 genetic groups. Using self-assignment tests, the power of the genetic reference database to judge on declarations on the location has been tested for 3 different assignment methods. We observed a strong genetic differentiation among locations leading to high and reliable self-assignment rates for the locations between 50% to 100% (average of 88%). Although all 3 assignment methods came up with similar mean self-assignment rates, there were differences for some locations linked to the level of genetic diversity, differentiation, and heterozygosity. Our results show that the nuclear and chloroplast gene markers are effective to be used for a genetic certification system and can provide national and international authorities with a robust tool to confirm legality of timber. © 2018 The American Genetic Association. All rights reserved. | ||||
| Address | Instituto Florestal de São Paulo, São Paulo, SP, Brazil | ||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Export Date: 1 September 2018 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 817 | ||
| Permanent link to this record | |||||
| Author | Jona Lasinio, G.; Pollice, A.; Marcon, E.; Fano, E.A. | ||||
| Title |
Assessing the role of the spatial scale in the analysis of lagoon biodiversity. A case-study on the macrobenthic fauna of the Po River Delta | Type | Journal Article | ||
| Year | 2017 | Publication | Ecological Indicators | Abbreviated Journal | Ecological Indicators |
| Volume | 80 | Issue | Pages | 303-315 | |
| Keywords | Biodiversity partitioning; Lagoon biodiversity; Macrobenthic fauna; Mixed effects models; Tsallis entropy | ||||
| Abstract | The analysis of benthic assemblages is a valuable tool to describe the ecological status of transitional water ecosystems, but species are extremely sensitive and respond to both microhabitat and seasonal differences. The identification of changes in the composition of the macrobenthic community in specific microhabitats can then be used as an “early warning” for environmental changes which may affect the economic and ecological importance of lagoons, through their provision of Ecosystem Services. From a conservational point of view, the appropriate definition of the spatial aggregation level of microhabitats or local communities is of crucial importance. The main objective of this work is to assess the role of the spatial scale in the analysis of lagoon biodiversity. First, we analyze the variation in the sample coverage for alternative aggregations of the monitoring stations in three lagoons of the Po River Delta. Then, we analyze the variation of a class of entropy indices by mixed effects models, properly accounting for the fixed effects of biotic and abiotic factors and random effects ruled by nested sources of variability corresponding to alternative definitions of local communities. Finally, we address biodiversity partitioning by a generalized diversity measure, namely the Tsallis entropy, and for alternative definitions of the local communities. The main results obtained by the proposed statistical protocol are presented, discussed and framed in the ecological context. © 2017 Elsevier Ltd | ||||
| Address | Dipartimento di Scienze della Vita e Biotecnologie, Università degli Studi di Ferrara, Ferrara, Italy | ||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Export Date: 12 June 2017 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 755 | ||
| Permanent link to this record | |||||
| Author | Piponiot, C.; Derroire, G.; Descroix, L.; Mazzei, L.; Rutishauser, E.; Sist, P.; Hérault, B. | ||||
| Title |
Assessing timber volume recovery after disturbance in tropical forests – A new modelling framework | Type | Journal Article | ||
| Year | 2018 | Publication | Ecological Modelling | Abbreviated Journal | |
| Volume | 384 | Issue | Pages | 353-369 | |
| Keywords | Disturbance; Ecosystem modelling; Recovery; Sustainability; Tropical forest management | ||||
| Abstract | One third of contemporary tropical forests is designated by national forest services for timber production. Tropical forests are also increasingly affected by anthropogenic disturbances. However, there is still much uncertainty around the capacity of tropical forests to recover their timber volume after logging as well as other disturbances such as fires, large blow-downs and extreme droughts, and thus on the long-term sustainability of logging. We developed an original Bayesian hierarchical model of Volume Dynamics with Differential Equations (VDDE) to infer the dynamic of timber volumes as the result of two ecosystem processes: volume gains from tree growth and volume losses from tree mortality. Both processes are expressed as explicit functions of the forest maturity, i.e. the overall successional stage of the forest that primarily depends on the frequency and severity of the disturbances that the forest has undergone. As a case study, the VDDE model was calibrated with data from Paracou, a long-term disturbance experiment in a neotropical forest where over 56 ha of permanent forest plots were logged with different intensities and censused for 31 years. With this model, we could predict timber recovery at Paracou at the end of a cutting cycle depending on the logging intensity, the rotation cycle length, and the proportion of commercial volume. The VDDE modelling framework developed presents three main advantages: (i) it can be calibrated with large tree inventories which are widely available from national forest inventories or logging concession management plans and are easy to measure, both on the field and with remote sensing; (ii) it depends on only a few input parameters, which can be an advantage in tropical regions where data availability is scarce; (iii) the modelling framework is flexible enough to explicitly include the effect of other types of disturbances (both natural and anthropogenic: e.g. blow-downs, fires and climate change) on the forest maturity, and thus to predict future timber provision in the tropics in a context of global changes. © 2018 Elsevier B.V. | ||||
| Address | INPHB (Institut National Polytechnique Félix Houphouet Boigny), Yamoussoukro, Cote d'Ivoire | ||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Export Date: 1 September 2018 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 813 | ||
| Permanent link to this record | |||||
| Author | Falkowski, M.; Jahn-Oyac, A.; Ferrero, E.; Issaly, J.; Eparvier, V.; Girod, R.; Rodrigues, A.M.S.; Stien, D.; Houel, E.; Dusfour, I. | ||||
| Title |
Assessment of A Simple Compound-Saving Method to Study Insecticidal Activity of Natural Extracts and Pure Compounds Against Mosquito Larvae | Type | Journal Article | ||
| Year | 2016 | Publication | Journal of the American Mosquito Control Association | Abbreviated Journal | Journal of the American Mosquito Control Association |
| Volume | 32 | Issue | 4 | Pages | 337-340 |
| Keywords | Mosquitoes; natural insecticides; screening method | ||||
| Abstract | Research on natural insecticides has intensified with the spread of resistance to chemicals among insects, particularly disease vectors. To evaluate compounds, the World Health Organization (WHO) has published standardized procedures. However, those may be excessively compound-consuming when it comes to assessing the activity of natural extracts and pure compounds isolated in limited amount. As part of our work on the discovery of new mosquito larvicides from Amazonian plants, we developed a compound-saving assay in 5-ml glass tubes instead of WHO larval 100-ml cups. Comparing activity of synthetic and natural chemicals validated the glass tube assay. Raw data, lethal doses that kill 50% (LD50) and 90% (LD90) at 24 and 48 h, were highly correlated (0.68 < R2 < 0.96, P < 0.001, Pearson test) between cups and tubes. It was also established that 10 tubes (N = 50 larvae) provided the same level of sensitivity as 20 tubes (N = 100). This method proved suitable for rapid screening of natural extracts and molecules, identifying active compounds using 10 times less material than in the WHO protocol. © 2016 by The American Mosquito Control Association, Inc. | ||||
| Address | Sorbonne Universites, UPMC, Universite Paris 06, CNRS, Laboratoire de Biodiversite et Biotechnologies Microbiennes (USR 3579, LBBM), Observatoire Oceanologique, avenue de Fontaul e, Banyuls/Mer-sur-mer, France | ||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Export Date: 3 March 2017 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 740 | ||
| Permanent link to this record | |||||
| Author | Schwalm, C.R.; Williams, C.A.; Schaefer, K.; Arneth, A.; Bonal, D.; Buchmann, N.; Chen, J.Q.; Law, B.E.; Lindroth, A.; Luyssaert, S.; Reichstein, M.; Richardson, A.D. | ||||
| Title |
Assimilation exceeds respiration sensitivity to drought: A FLUXNET synthesis | Type | Journal Article | ||
| Year | 2010 | Publication | Global Change Biology | Abbreviated Journal | Glob. Change Biol. |
| Volume | 16 | Issue | 2 | Pages | 657-670 |
| Keywords | biome; carbon cycling; drought; eddy covariance; evaporative fraction; FLUXNET; synthesis | ||||
| Abstract | The intensification of the hydrological cycle, with an observed and modeled increase in drought incidence and severity, underscores the need to quantify drought effects on carbon cycling and the terrestrial sink. FLUXNET, a global network of eddy covariance towers, provides dense data streams of meteorological data, and through flux partitioning and gap filling algorithms, estimates of net ecosystem productivity (F-NEP), gross ecosystem productivity (P), and ecosystem respiration (R). We analyzed the functional relationship of these three carbon fluxes relative to evaporative fraction (EF), an index of drought and site water status, using monthly data records from 238 micrometeorological tower sites distributed globally across 11 biomes. The analysis was based on relative anomalies of both EF and carbon fluxes and focused on drought episodes by biome and climatic season. Globally P was approximate to 50% more sensitive to a drought event than R. Network-wide drought-induced decreases in carbon flux averaged -16.6 and -9.3 g C m-2 month-1 for P and R, i.e., drought events induced a net decline in the terrestrial sink. However, in evergreen forests and wetlands drought was coincident with an increase in P or R during parts of the growing season. The most robust relationships between carbon flux and EF occurred during climatic spring for F-NEP and in climatic summer for P and R. Upscaling flux sensitivities to a global map showed that spatial patterns for all three carbon fluxes were linked to the distribution of croplands. Agricultural areas exhibited the highest sensitivity whereas the tropical region had minimal sensitivity to drought. Combining gridded flux sensitivities with their uncertainties and the spatial grid of FLUXNET revealed that a more robust quantification of carbon flux response to drought requires additional towers in all biomes of Africa and Asia as well as in the cropland, shrubland, savannah, and wetland biomes globally. | ||||
| Address | [Schwalm, Christopher R.; Williams, Christopher A.] Clark Univ, Grad Sch Geog, Worcester, MA 01610 USA, Email: cschwalm@clarku.edu | ||||
| Corporate Author | Thesis | ||||
| Publisher | WILEY-BLACKWELL PUBLISHING, INC | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1354-1013 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000274419400014 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 69 | ||
| Permanent link to this record | |||||
| Author | Wagner, F.; Rossi, V.; Stahl, C.; Bonal, D.; Herault, B. | ||||
| Title |
Asynchronism in leaf and wood production in tropical forests: A study combining satellite and ground-based measurements | Type | Journal Article | ||
| Year | 2013 | Publication | Biogeosciences | Abbreviated Journal | Biogeosciences |
| Volume | 10 | Issue | 11 | Pages | 7307-7321 |
| Keywords | |||||
| Abstract | The fixation of carbon in tropical forests mainly occurs through the production of wood and leaves, both being the principal components of net primary production. Currently field and satellite observations are independently used to describe the forest carbon cycle, but the link between satellite-derived forest phenology and field-derived forest productivity remains opaque. We used a unique combination of a MODIS enhanced vegetation index (EVI) dataset, a wood production model based on climate data and direct litterfall observations at an intra-annual timescale in order to question the synchronism of leaf and wood production in tropical forests. Even though leaf and wood biomass fluxes had the same range (respectively 2.4 ± 1.4 and 2.2 ± 0.4 Mg C ha-1 yr-1), they occurred separately in time. EVI increased with leaf renewal at the beginning of the dry season, when solar irradiance was at its maximum. At this time, wood production stopped. At the onset of the rainy season, when new leaves were fully mature and water available again, wood production quickly increased to reach its maximum in less than a month, reflecting a change in carbon allocation from short-lived pools (leaves) to long-lived pools (wood). The time lag between peaks of EVI and wood production (109 days) revealed a substantial decoupling between the leaf renewal assumed to be driven by irradiance and the water-driven wood production. Our work is a first attempt to link EVI data, wood production and leaf phenology at a seasonal timescale in a tropical evergreen rainforest and pave the way to develop more sophisticated global carbon cycle models in tropical forests. © 2013 Author(s). | ||||
| Address | INRA, UMR EEF 1137, 54280 Champenoux, France | ||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 17264170 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 2 December 2013; Source: Scopus; doi: 10.5194/bg-10-7307-2013; Language of Original Document: English; Correspondence Address: Wagner, F.; CIRAD, UMR Ecologie des Forêts de Guyane, Kourou, French Guiana, French Guiana; email: wagner.h.fabien@gmail.com; References: Allen, R., Smith, M., Pereira, L., Perrier, A., An update for the calculation of reference evapotranspiration (1994) Journal of the ICID, 43, pp. 35-92; Anderson, L.O., Biome-scale forest properties in Amazonia based on field and satellite observations (2012) Remote Sens., 4, pp. 1245-1271. , doi:10.3390/rs4051245; Arias, P.A., Fu, R., Hoyos, C.D., Li, W., Zhou, L., Changes in cloudiness over the Amazon rainforests during the last two decades: Diagnostic and potential causes (2011) Clim. Dynam., 37, pp. 1151-1164. , doi:10.1007/s00382-010-0903-2; Asner, G., Townsend, A., Braswell, B., Satellite observation of El Nino effects on Amazon forest phenology and productivity (2000) Geophys. Res. Lett., 27, pp. 981-984. , doi:10.1029/1999GL011113; Asner, G.P., Nepstad, D., Cardinot, G., Ray, D., Drought stress and carbon uptake in an Amazon forest measured with spaceborne imaging spectroscopy (2004) Proceedings of the National Academy of Sciences of the United States of America, 101 (16), pp. 6039-6044. , DOI 10.1073/pnas.0400168101; Baccini, A., Goetz, S.J., Walker, W.S., Laporte, N.T., Sun, M., Sulla-Menashe, D., Hackler, J., Houghton, R.A., Estimated carbon dioxide emissions from tropical deforestation improved by carbon-density maps (2012) Nat. Clim. Change, 2, pp. 182-185. , doi:10.1038/NCLIMATE1354; Baker, T.R., Burslem, D.F.R.P., Swaine, M.D., Associations between tree growth, soil fertility and water availability at local and regional scales in Ghanaian tropical rain forest (2003) Journal of Tropical Ecology, 19 (2), pp. 109-125. , DOI 10.1017/S0266467403003146; Baraloto, C., Paine, C.E.T., Poorter, L., Beauchene, J., Bonal, D., Domenach, A.-M., Herault, B., Chave, J., Decoupled leaf and stem economics in rain forest trees (2010) Ecol. Lett., 13, pp. 1338-1347. , doi:10.1111/j.1461- 0248.2010.01517.x; Barnett, A., Dobson, A., (2010) Analysing Seasonal Health Data, , Springer; Bonal, D., Bosc, A., Ponton, S., Goret, J.-Y., Burban, B.T., Gross, P., Bonnefond, J.-M., Granier, A., Impact of severe dry season on net ecosystem exchange in the Neotropical rainforest of French Guiana (2008) Global Change Biology, 14 (8), pp. 1917-1933. , DOI 10.1111/j.1365-2486.2008.01610.x; Bradley, A.V., Gerard, F.F., Barbier, N., Weedon, G.P., Anderson, L.O., Huntingford, C., Aragao, L.E.O.C., Arai, E., Relationships between phenology, radiation and precipitation in the Amazon region (2011) Glob. Change Biol., 17, pp. 2245-2260. , doi:10.1111/j.1365-2486.2011.02405.x; Brando, P.M., Goetz, S.J., Baccini, A., Nepstad, D.C., Beck, P.S.A., Christman, M.C., Seasonal and interannual variability of climate and vegetation indices across the Amazon (2010) P. Natl. Acad. Sci. USA, 107, pp. 14685-14690. , doi:10.1073/pnas.0908741107; Caldararu, S., Palmer, P.I., Purves, D.W., Inferring Amazon leaf demography from satellite observations of leaf area index (2012) Biogeosciences, 9, pp. 1389-1404. , doi:10.5194/bg-9-1389-2012; Chambers, J.Q., Silver, W.L., Some aspects of ecophysiological and biogeochemical responses of tropical forests to atmospheric change (2004) Philosophical Transactions of the Royal Society B: Biological Sciences, 359 (1443), pp. 463-476. , DOI 10.1098/rstb.2003.1424; Chave, J., Navarrete, D., Almeida, S., Álvarez, E., Aragão, L.E.O.C., Bonal, D., Châtelet, P., Malhi, Y., Regional and seasonal patterns of litterfall in tropical South America (2010) Biogeosciences, 7, pp. 43-55. , doi:10.5194/bg-7-43-2010; Clark, D.B., Clark, D.A., Oberbauer, S.F., Annual wood production in a tropical rain forest in NE Costa Rica linked to climatic variation but not to increasing CO2 (2010) Glob. Change Biol., 16, pp. 747-759. , doi:10.1111/j.1365-2486.2009.02004.x; Delegido, J., Vergara, C., Verrelst, J., Gandia, S., Moreno, J., Remote estimation of crop chlorophyll content by means of highspectral- resolution reflectance techniques (2011) Agron. J., 103, pp. 1834-1842. , doi:10.2134/agronj2011.0101; De Weirdt, M., Verbeeck, H., Maignan, F., Peylin, P., Poulter, B., Bonal, D., Ciais, P., Steppe, K., Seasonal leaf dynamics for tropical evergreen forests in a process-based global ecosystem model (2012) Geosci. Model Dev., 5, pp. 1091-1108. , doi:10.5194/gmd-5-1091-2012; Doughty, C.E., An in situ leaf and branch warming experiment in the amazon (2011) Biotropica, 43, pp. 658-665. , doi:10.1111/j.1744- 7429.2010.00746.x; Doughty, C.E., Goulden, M.L., Are tropical forests near a high temperature threshold? (2008) J. Geophys. Res.-Biogeo., 113, pp. G00B07. , doi:10.1029/2007JG000632; Ekstrom, M., Jones, P.D., Fowler, H.J., Lenderink, G., Buishand, T.A., Conway, D., Regional climate model data used within the SWURVE project projected changes in seasonal patterns and estimation of PET (2007) Hydrology and Earth System Sciences, 11 (3), pp. 1069-1083; Enquist, B.J., Leffler, A.J., Long-term tree ring chronologies from sympatric tropical dry-forest trees: Individualistic responses to climatic variation (2001) Journal of Tropical Ecology, 17 (1), pp. 41-60. , DOI 10.1017/S0266467401001031; (2008) ESA SP-1313/4 Candidate Earth Explorer Core Missions – Reports for Assessment: FLEX – FLuorescence Explorer, , http://esamultimedia.esa.int/docs/SP1313-4_FLEX.pdf, European Space Agency, Tech. rep., published by ESA Communication Production Office, Noordwijk, The Netherlands; Fichtler, E., Clark, D.A., Worbes, M., Age and Long-term Growth of Trees in an Old-growth Tropical Rain Forest, Based on Analyses of Tree Rings and 14C (2003) Biotropica, 35 (3), pp. 306-317; Figueira, A., Miller, S., De Sousa, C., Menton, M., Maia, A., Da Rocha, H., Goulden, M., (2011) LBA-ECO CD-04 Dendrometry, Km 83 Tower Site, , http://daac.ornl.gov, Tapajos National Forest, Brazil, Data set, Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, USA, doi:10.3334/ORNLDAAC/989; Galvao, L.S., Breunig, F.M., Dos Santos, J.R., De Moura, Y.M., View-illumination effects on hyperspectral vegetation indices in the Amazonian tropical forest (2013) Int. J. Appl. Earth Obs., 21, pp. 291-300. , doi:10.1016/j.jag.2012.07.005; Gao, X., Huete, A.R., Ni, W., Miura, T., Optical-biophysical relationships of vegetation spectra without background contamination (2000) Remote Sensing of Environment, 74 (3), pp. 609-620. , DOI 10.1016/S0034-4257(00)00150-4, PII S0034425700001504; Gond, V., Freycon, V., Molino, J.-F., Brunaux, O., Ingrassia, F., Joubert, P., Pekel, J.-F., Sabatier, D., Broad-scale spatial pattern of forest landscape types in the Guiana Shield (2011) Int. J. Appl. Earth Obs., 13, pp. 357-367. , doi:10.1016/j.jag.2011.01.004; Gourlet-Fleury, S., Guehl, J.M., Laroussinie, O., (2004) Ecology and Management of A Neotropical Rainforest – Lessons Drawn from Paracou, A Long-term Experimental Research Site in French Guiana, , Elsevier; Graham, E.A., Mulkey, S.S., Kitajima, K., Phillips, N.G., Wright, S.J., Cloud cover limits net CO2 uptake and growth of a rainforest tree during tropical rainy seasons (2003) Proceedings of the National Academy of Sciences of the United States of America, 100 (2), pp. 572-576. , DOI 10.1073/pnas.0133045100; Grogan, J., Schulze, M., The impact of annual and seasonal rainfall patterns on growth and phenology of emergent tree species in Southeastern Amazonia, Brazil (2012) Biotropica, 44, pp. 331-340. , doi:10.1111/j.1744-7429.2011.00825.x; Harris, P.P., Huntingford, C., Cox, P.M., Amazon Basin climate under global warming: The role of the sea surface temperature (2008) Philosophical Transactions of the Royal Society B: Biological Sciences, 363 (1498), pp. 1753-1759. , DOI 10.1098/rstb.2007.0037, PII M322R63897015H77; Huete, A., Didan, K., Miura, T., Rodriguez, E.P., Gao, X., Ferreira, L.G., Overview of the radiometric and biophysical performance of the MODIS vegetation indices (2002) Remote Sensing of Environment, 83 (1-2), pp. 195-213. , DOI 10.1016/S0034-4257(02)00096-2, PII S0034425702000962; Huete, A.R., Didan, K., Shimabukuro, Y.E., Ratana, P., Saleska, S.R., Hutyra, L.R., Yang, W.Z., Myneni, R., Amazon rainforests green-up with sunlight in dry season (2006) Geophys. Res. Lett., 33, pp. L06405. , doi:10.1029/2005GL025583; 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) Journal of Geophysical Research G: Biogeosciences, 112 (3), pp. G03008. , DOI 10.1029/2006JG000365; Janzen, D., Wilson, D., The cost of being dormant in the tropics (1974) Biotropica, 6, pp. 260-262; Justice, C.O., Vermote, E., Townshend, J.R.G., Defries, R., Roy, D.P., Hall, D.K., Salomonson, V.V., Barnsley, M.J., The moderate resolution imaging spectroradiometer (MODIS): Land remote sensing for global change research (1998) IEEE Transactions on Geoscience and Remote Sensing, 36 (4), pp. 1228-1249. , PII S0196289298047512; Kozlowski, T., Carbohydrate sources and sinks in woody-plants (1992) Bot. Rev., 58, pp. 107-222. , doi:10.1007/BF02858600; Krepkowski, J., Bräuning, A., Gebrekirstos, A., Strobl, S., Cambial growth dynamics and climatic control of different tree life forms in tropical mountain forest in Ethiopia (2011) Trees, 25, pp. 59-70. , doi:10.1007/s00468-010-0460-7; Lewis, S.L., Malhi, Y., Phillips, O.L., Fingerprinting the impacts of global change on tropical forests (2004) Philosophical Transactions of the Royal Society B: Biological Sciences, 359 (1443), pp. 437-462. , DOI 10.1098/rstb.2003.1432; Lisi, C.S., Tomazello Fo., M., Botosso, P.C., Roig, F.A., Maria, V.R.B., Ferreira-Fedele, L., Voigt, A.R.A., Tree-ring formation, radial increment periodicity, and phenology of tree species from a seasonal semi-deciduous forest in southeast Brazil (2008) IAWA Journal, 29 (2), pp. 189-207; Lloyd, J., Farquhar, G.D., Effects of rising temperatures and [CO2] on the physiology of tropical forest trees (2008) Philosophical Transactions of the Royal Society B: Biological Sciences, 363 (1498), pp. 1811-1817. , DOI 10.1098/rstb.2007.0032, PII C14L2U757H282731; Da Costa Lola, A.C., Galbraith, D., Almeida, S., Tanaka Portela, B.T., Da Costa, M., De Athaydes Silva Jr., J., Braga, A.P., Meir, P., Effect of 7 yr of experimental drought on vegetation dynamics and biomass storage of an eastern Amazonian rainforest (2010) New Phytol., 187, pp. 579-591. , doi:10.1111/j.1469-8137.2010.03309.x; Loubry, D., Phenology of deciduous trees in a French-Guianan forest (5 degrees latitude North) – Case of a determinism with endogenous and exogenous components (1994) Can. J. Bot., 72, pp. 1843-1857; Malhi, Y., Grace, J., Tropical forests and atmospheric carbon dioxide (2000) Trends in Ecology and Evolution, 15 (8), pp. 332-337. , DOI 10.1016/S0169-5347(00)01906-6, PII S0169534700019066; Malhi, Y., Aragao, L.E.O.C., Galbraith, D., Huntingford, C., Fisher, R., Zelazowski, P., Sitch, S., Meir, P., Exploring the likelihood and mechanism of a climatechange- induced dieback of the Amazon rainforest (2009) P. Natl. Acad. Sci. USA, 106, pp. 20610-20615. , doi:10.1073/pnas.0804619106; Malhi, Y., Doughty, C., Galbraith, D., The allocation of ecosystem net primary productivity in tropical forests (2011) Philos. T. R. Soc. B, 366, pp. 3225-3245. , doi:10.1098/rstb.2011.0062; Meroni, M., Busetto, L., Colombo, R., Guanter, L., Moreno, J., Verhoef, W., Performance of spectral fitting methods for vegetation fluorescence quantification (2010) Remote Sens. Environ., 114, pp. 363-374. , doi:10.1016/j.rse.2009.09.010; Michelot, A., Simard, S., Rathgeber, C., Dufrene, E., Damesin, C., Comparing the intra-annual wood formation of three European species (Fagus sylvatica, Quercus petraea and Pinus sylvestris) as related to leaf phenology and nonstructural carbohydrate dynamics (2012) Tree Physiol., 32, pp. 1033-1045. , doi:10.1093/treephys/tps052; Mitchell, T.D., Jones, P.D., An improved method of constructing a database of monthly climate observations and associated high-resolution grids (2005) International Journal of Climatology, 25 (6), pp. 693-712. , DOI 10.1002/joc.1181; Molto, Q., Rossi, V., Blanc, L., Error propagation in biomass estimation in tropical forests (2013) Meth. Ecol. Evolut., 4, pp. 175-183. , doi:10.1111/j.2041-210x.2012.00266.x; Moura, Y.M., Galvao, L.S., Dos Santos, J.R., Roberts, D.A., Breunig, F.M., Use of MISR/Terra data to study intra- and interannual EVI variations in the dry season of tropical forest (2012) Remote Sens. Environ., 127, pp. 260-270. , doi:10.1016/j.rse.2012.09.013; Myneni, R.B., Hall, F.G., Sellers, P.J., Marshak, A.L., The meaning of spectral vegetation indices (1995) IEEE T. Geosci. Remote, 33, pp. 481-486; Myneni, R.B., Yang, W., Nemani, R.R., Huete, A.R., Dickinson, R.E., Knyazikhin, Y., Didan, K., Salomonson, V.V., Large seasonal swings in leaf area of Amazon rainforests (2007) Proceedings of the National Academy of Sciences of the United States of America, 104 (12), pp. 4820-4823. , DOI 10.1073/pnas.0611338104; Nath, C.D., Dattaraja, H.S., Suresh, H.S., Joshi, N.V., Sukumar, R., Patterns of tree growth in relation to environmental variability in the tropical dry deciduous forest at Mudumalai, southern India (2006) Journal of Biosciences, 31 (5), pp. 651-669. , http://www.ias.ac.in/jbiosci/dec2006/651-669.pdf, DOI 10.1007/BF02708418; Nemani, R.R., Keeling, C.D., Hashimoto, H., Jolly, W.M., Piper, S.C., Tucker, C.J., Myneni, R.B., Running, S.W., Climate-driven increases in global terrestrial net primary production from 1982 to 1999 (2003) Science, 300 (5625), pp. 1560-1563. , DOI 10.1126/science.1082750; Nepstad, D., Moutinho, P., Dias, M., Davidson, E., Cardinot, G., Markewitz, D., Figueiredo, R., Schwalbe, K., The effects of partial throughfall exclusion on canopy processes, aboveground production, and biogeochemistry of an Amazon forest (2002) J. Geophys. Res.-Atmos., 107, p. 8085. , doi:10.1029/2001JD000360; O'Brien, J.J., Oberbauer, S.F., Clark, D.B., Clark, D.A., Phenology and stem diameter increment seasonality in a Costa Rican wet tropical forest (2008) Biotropica, 40 (2), pp. 151-159. , DOI 10.1111/j.1744-7429.2007.00354.x; Pan, Y., Birdsey, R.A., Fang, J., Houghton, R., Kauppi, P.E., Kurz, W.A., Phillips, O.L., Hayes, D., A large and persistent carbon sink in the world's forests (2011) Science, 333, pp. 988-993. , doi:10.1126/science.1201609; Pennec, A., Gond, V., Sabatier, D., Tropical forest phenology in French Guiana from MODIS time series (2011) Remote Sens. Lett., 2, pp. 337-345; Phillips, O.L., Aragao, L.E.O.C., Lewis, S.L., Fisher, J.B., Lloyd, J., Lopez-Gonzalez, G., Malhi, Y., Torres-Lezama, A., Drought sensitivity of the Amazon rainforest (2009) Science, 323, pp. 1344-1347. , doi:10.1126/science.1164033; Poorter, L., Kitajima, K., Carbohydrate storage and light requirements of tropical moist and dry forest tree species (2007) Ecology, 88 (4), pp. 1000-1011. , http://www.esajournals.org/pdfserv/i0012-9658-088-04-1000.pdf, DOI 10.1890/06-0984; Rice, A.H., Pyle, E.H., Saleska, S.R., Hutyra, L., Palace, M., Keller, M., De Camargo, P.B., Wofsy, S.C., Carbon balance and vegetation dynamics in an old-growth Amazonian forest (2004) Ecological Applications, 14 (4 SUPPL.), pp. S55-S71; Richardson, A.D., Carbone, M.S., Keenan, T.F., Czimczik, C.I., Hollinger, D.Y., Murakami, P., Schaberg, P.G., Xu, X., Seasonal dynamics and age of stemwood nonstructural carbohydrates in temperate forest trees (2013) New Phytol., 197, pp. 850-861. , doi:10.1111/nph.12042; Rocha, A.V., Tracking carbon within the trees (2013) New Phytol., 197, pp. 685-686. , doi:10.1111/nph.12095; Rutishauser, E., Wagner, F., Herault, B., Nicolini, E.-A., Blanc, L., Contrasting above-ground biomass balance in a neotropical rain forest (2010) J. Veg. Sci., 21, pp. 672-682. , doi:10.1111/j.1654-1103.2010.01175.x; 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 (2013) Glob. Change Biol., , doi:10.1111/gcb.12375; Sabatier, D., Puig, H., Phénologie et saisonnalité de la floraison et de la fructification en forêt dense guyanaise (1986) Memoir. Mus. Natl. Hist. A-Zool., 132, pp. 173-184; Sabatier, D., Grimaldi, M., Prevost, M., Guillaume, J., Godron, M., Dosso, M., Curmi, P., The influence of soil cover organization on the floristic and structural heterogeneity of a Guianan rain forest (1997) Plant Ecol., 131, pp. 81-108; Saleska, S.R., Miller, S.D., Matross, D.M., Goulden, M.L., Wofsy, S.C., Da Rocha, H.R., De Camargo, P.B., Silva, H., Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses (2003) Science, 302 (5650), pp. 1554-1557. , DOI 10.1126/science.1091165; Saleska, S.R., Didan, K., Huete, A.R., Da Rocha, H.R., Amazon forests green-up during 2005 drought (2007) Science, 318 (5850), p. 612. , DOI 10.1126/science.1146663; Samanta, A., Ganguly, S., Hashimoto, H., Devadiga, S., Vermote, E., Knyazikhin, Y., Nemani, R.R., Myneni, R.B., Amazon forests did not green-up during the 2005 drought (2010) Geophys. Res. Lett., 37, pp. L05401. , doi:10.1029/2009GL042154; Schongart, J., Piedade, M.T.F., Ludwigshausen, S., Horna, V., Worbes, M., Phenology and stem-growth periodicity of tree species in Amazonian floodplain forests (2002) Journal of Tropical Ecology, 18 (4), pp. 581-597. , DOI 10.1017/S0266467402002389; Solano, R., Didan, K., Jacobson, A., Huete, A., (2010) Terrestrial Biophysics and Remote Sensing Lab – The University of Arizona, MODIS Vegetation Indices (MOD13) C5 User's Guide, Version 1.00; Solomon, S., Qin, D., Manning, M., Marquis, M., Averyt, K., Tignor, M.M.H., Leroy Miller, J., Chen, Z., (2007) Climate Change 2007, the Fourth Assessment Report (AR4), Intergovernmental Panel on Climate Change; Solomon, S., Plattner, G.-K., Knutti, R., Friedlingstein, P., Irreversible climate change due to carbon dioxide emissions (2009) P. Natl. Acad. Sci. USA, 106, pp. 1704-1709. , doi:10.1073/pnas.0812721106; Stahl, C., Burban, B., Bompy, F., Jolin, Z.B., Sermage, J., Bonal, D., Seasonal variation in atmospheric relative humidity contributes to explaining seasonal variation in trunk circumference of tropical rain-forest trees in French Guiana (2010) J. Trop. Ecol., 26, pp. 393-405. , doi:10.1017/S0266467410000155; 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; Tian, H., Melillo, J.M., Kicklighter, D.W., David McGuire, A., Helfrich III, J.V.K., Moore III, B., Vorosmarty, C.J., Effect of interannual climate variability on carbon storage in Amazonian ecosystems (1998) Nature, 396 (6712), pp. 664-667. , DOI 10.1038/25328; Verbeeck, H., Peylin, P., Bacour, C., Bonal, D., Steppe, K., Ciais, P., Seasonal patterns of CO2 fluxes in Amazon forests: Fusion of eddy covariance data and the ORCHIDEE model (2011) J. Geophys. Res.-Biogeo., 116, pp. G02018. , doi:10.1029/2010JG001544; Wagner, F., Hérault, B., Stahl, C., Bonal, D., Rossi, V., Modeling water availability for trees in tropical forests (2010) Agr. Forest Meteorol., pp. 1202-1213. , doi:10.1016/j.agrformet.2011.04.012; Wagner, F., Rutishauser, E., Blanc, L., Herault, B., Effects of plot size and census interval on descriptors of forest structure and dynamics (2010) Biotropica, 42, pp. 664-671; Wagner, F., Rossi, V., Stahl, C., Bonal, D., Herault, B., Water availability is the main climate driver of neotropical tree growth (2012) Plos One, 7, pp. e34074. , doi:10.1371/journal.pone.0034074; Worbes, M., Annual growth rings, rainfall-dependent growth and long-term growth patterns of tropical trees from the Caparo Forest Reserve in Venezuela (1999) Journal of Ecology, 87 (3), pp. 391-403. , DOI 10.1046/j.1365-2745.1999.00361.x; Wright, S., Vanschaik, C., Light and the phenology of tropical trees (1994) Am. Nat., 143, pp. 192-199. , doi:10.1086/285600; Wurth, M.K.R., Pelaez-Riedl, S., Wright, S.J., Korner, C., Non-structural carbohydrate pools in a tropical forest (2005) Oecologia, 143 (1), pp. 11-24. , DOI 10.1007/s00442-004-1773-2; Zalamea, M., Gonzalez, G., Leaffall phenology in a subtropical wet forest in Puerto Rico: From species to community patterns (2008) Biotropica, 40 (3), pp. 295-304. , DOI 10.1111/j.1744-7429.2007.00389.x; Zhang, X., Friedl, M.A., Schaaf, C.B., Strahler, A.H., Hodges, J.C.F., Gao, F., Reed, B.C., Huete, A., Monitoring vegetation phenology using MODIS (2003) Remote Sensing of Environment, 84 (3), pp. 471-475. , DOI 10.1016/S0034-4257(02)00135-9, PII S0034425702001359 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 512 | ||
| Permanent link to this record | |||||
| Author | Maggia, Marie-Eugénie ; Decaëns, Thibaud ; Lapied, Emmanuel ; Dupont, Lise ; Roy, Virginie ; Schimann, Heidy ; Orivel, Jérome ; Murienne, Jérôme ; Baraloto, Christophier ; Cottenie, Karl ; Steinke, Dirk | ||||
| Title |
At each site its diversity: DNA barcoding reveals remarkable earthworm diversity in neotropical rainforests of French Guiana | Type | Journal Article | ||
| Year | 2021 | Publication | Applied Soil Ecology | Abbreviated Journal | |
| Volume | 164 | Issue | Pages | 103932 | |
| Keywords | DNA barcoding Tropical rainforest Community ecology Diversity level Sampling methods | ||||
| Abstract | Despite their recognized essential role in soil, earthworms in tropical environments are still understudied. The aim of this study was to re-evaluate the diversity at the regional scale, as well as to investigate the environmental and spatial drivers of earthworm communities. We sampled earthworm communities across a range of habitats at six localities in French Guiana using three different sampling methods. We generated 1675 DNA barcodes and combined them with data from a previous study. Together, all sequences clustered into 119 MOTUs which were used as proxy to assess species richness. Only two MOTUs were common between the six localities and 20.2% were singletons, showing very high regional species richness and a high number of rare species. A canonical redundancy analysis was used to identify key drivers of the earthworm community composition. The RDA results and beta-diversity calculations both show strong species turnover and a strong spatial effect, resulting from dispersal limitations that are responsible for the current community composition. Sampling in different microhabitats allowed the discovery of 23 MOTUs that are exclusively found in decaying trunks and epiphytes, highlighting hidden diversity of earthworms outside of soil. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier B.V. | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0929-1393 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 1055 | ||
| Permanent link to this record | |||||