toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Odonne, G.; Bourdy, G.; Castillo, D.; Estevez, Y.; Lancha-Tangoa, A.; Alban-Castillo, J.; Deharo, E.; Rojas, R.; Stien, D.; Sauvain, M. openurl 
  Title Ta'ta', Huayani: Perception of leishmaniasis and evaluation of medicinal plants used by the Chayahuita in Peru. Part II Type Journal Article
  Year 2009 Publication Journal of Ethnopharmacology Abbreviated Journal J. Ethnopharmacol.  
  Volume 126 Issue 1 Pages 149-158  
  Keywords Leishmaniasis; Medicinal plants; Traditional medicine; Chayahuita; Peru  
  Abstract Aim of the study v: A knowledge attitude and practice study centred on leishmaniasis and its treatment was performed among the Chayahuita, in Amazonian Peruvian ethnic group living in ail endemic area. This study documents traditional Chayahuita plant's use and disease concepts. Also, activity of some medicinal Plants Used by the Chayahuita is highlighted and discussed. Materials and methods: Ninety-three Chayahuita people were interviewed, following a semi-structured questionnaire focussed oil disease knowledge and perception, personal attitude and healing practices. Simultaneously, a collection of plants was performed in different ecotopes, in order to make ail extensive inventory of the pharmacopoeia. Results: For the Chayahuita, cutaneous (CL) and muco-cutaneous leishmaniasis (MCL) are considered as diseases of their own, with specific names, aetiologics, mode of transmission. Regarding CL, Chayahuita people consider that the humid characteristic of the Skill ulcer is a discriminative fact orienting the diagnostic for Ta'ta' (leishmaniasis). Forty-six different species were designated useful against LC and /or MCL (29 species by means of the questionnaire and 27 species when collecting in different ecotopes). Thirty-seven extracts corresponding to 31 Species used medicinally were screened in vitro against Leishmania amazonensis axenic amastigotes, assessing their viability by the reduction Of tetrazolium salt (MTT). Six species displayed a good activity (10 μg/ml < IC50 < 20 μg/ml): all undetermined hemi-epiphytic Clusiaceae. Cybianthus anthuriophyllus Pipoly (Myrsinaceae), two Piper, Piper sanguineispicum Trel., and Piper loretoanum Trel. (Piperaceae), Desmodium axillare Sw. DC. (Fabaceae), and Clibadium sylvestre (Aubl.) Baill (Asteraceae). Conclusion: Perception of leishmaniasis, attitude. treatments and diet prohibitions still largely reflects traditional Chayahuita cosmovision, even if some tentative of bio-medical re-interpretation is arising. (C) 2009 Elsevier Ireland Ltd. All rights reserved.  
  Address [Odonne, G.; Bourdy, G.; Estevez, Y.; Deharo, E.; Sauvain, M.] Univ Toulouse, UPS, UMR 152, Lab Pharmacochim Subst Nat & Pharmacophores Redox, F-31062 Toulouse 9, France, Email: Genevieve.bourdy@ird.fr  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER IRELAND LTD Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0378-8741 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000271790800020 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 95  
Permanent link to this record
 

 
Author Bertani, S.; Houel, E.; Bourdy, G.; Stien, D.; Jullian, V.; Landau, I.; Deharo, E. openurl 
  Title Quassia amara L. (Simaroubaceae) leaf tea: Effect of the growing stage and desiccation status on the antimalarial activity of a traditional preparation Type Journal Article
  Year 2007 Publication Journal of Ethnopharmacology Abbreviated Journal J. Ethnopharmacol.  
  Volume 111 Issue 1 Pages 40-42  
  Keywords antimalarial; Quassia amara; quassinoids; simalikalactone D; traditional medicine  
  Abstract In French Guiana, Quassia amara L. (Simaroubaceae) leaf tea is a well-known widely used traditional antimalarial remedy. Impact of the vegetal sampling condition on in vivo and in vitro antimalarial activity was assessed. Traditional infusions were prepared with juvenile or mature leaves, both either fresh or dried. Results showed that growing stage and freshness of vegetal material exert a striking effect on antimalarial activity, both in vitro and in vivo. By far, leaf tea made from fresh juvenile (FJ) Quassia amara leaves was the most active. In vitro, active component (simalikalactone D) concentration correlates biological activities, although unexplained subtle variations were observed. In vivo, tea made with dried juvenile (DJ) leaves displays a peculiar behavior, meaning that some components may help simalikalactone D delivery or may be active in vivo only, therefore enhancing the expected curative effect of the traditional preparation. (c) 2006 Elsevier Ireland Ltd. All rights reserved.  
  Address Univ Toulouse 3, Ctr IRD, UMR 152, IRD, F-97323 Cayenne Cx, Guyana, Email: eric.deharo@ird.fr  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER IRELAND LTD Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0378-8741 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000246059600007 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 164  
Permanent link to this record
 

 
Author Odonne, G.; Bourdy, G.; Beauchene, J.; Houel, E.; Stien, D.; Chevolot, L.; Deharo, E. openurl 
  Title From Tonic-cups to Bitter-cups: Kwasi bita beker from Suriname Determination, past and present use of an ancient galenic artefact Type Journal Article
  Year 2007 Publication Journal of Ethnopharmacology Abbreviated Journal J. Ethnopharmacol.  
  Volume 110 Issue 2 Pages 318-322  
  Keywords Tonic-cup; Bitter-cup; Quassia amara; Suriname; traditional remedy  
  Abstract In the main markets of Paramaribo (Suriname), many stands offer what is locally called “Bitter-cups”, or “Kwasi bita beker”, small footed-cups, roughly carved from a whitish wood. The use of these cups is strictly medicinal and it seems to be restricted to Suriname, as they are not found in neighbouring countries (Guyana, French Guiana). The aim of this study was to identify the botanical origin of Bitter-cups still in use in the Saramaka traditional medicine (as information from field people was controversial), and document the ethnopharmacology of this original galenical artefact. Microscopic and high performance liquid chromatography (HPLC) analyses were carried out on Bitter-cup, and anatomical criteria (marginal parenchyma band, size of intervessel and vessel-ray pits, rays width and rays composition, vessels clustering, frequency and size of parenchyma pits) together with HPLC profiles of the macerates showed that the wood cup was similar to Quassia amara L. (Simaroubaceae) wood. Ethnopharmacological investigation indicates that the use of these cups is simply due to the pharmacological properties attributed to “bitters”, and is strongly linked to tradition and cultural attitudes. This study also emphasizes the long lasting use of these cups, now restricted to Suriname only, with almost no variation over one century. (c) 2006 Elsevier Ireland Ltd. All rights reserved.  
  Address Univ Toulouse 3, Ctr IRD, UMR 152, F-97323 Cayenne, France, Email: genevieve.bourdy@ird.fr  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER IRELAND LTD Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0378-8741 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000245486900012 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 166  
Permanent link to this record
 

 
Author Bertani, S.; Houel, E.; Stien, D.; Chevolot, L.; Jullian, V.; Garavito, G.; Bourdy, G.; Deharo, E. openurl 
  Title Simalikalactone D is responsible for the antimalarial properties of an amazonian traditional remedy made with Quassia amara L. (Simaroubaceae) Type Journal Article
  Year 2006 Publication Journal of Ethnopharmacology Abbreviated Journal J. Ethnopharmacol.  
  Volume 108 Issue 1 Pages 155-157  
  Keywords antimalarial; Quassia amara; quassinoids; simalikalactone D; traditional medicine  
  Abstract French Guiana (North-East Amazonia) records high malaria incidence rates. The traditional antimalarial remedy most widespread there is a simple tea made out from Quassia amara L. leaves (Simaroubaceae). This herbal tea displays an excellent antimalarial activity both in vitro and in vivo. A known quassinoid, simalikalactone D (SkD), was identified as the active compound, with an IC50 value of 10 nM against FeB1 Plasmodium falciparum chloroquine resistant strain in vitro. Lastly, it inhibits 50% of Plasmodium yoelii yoelii rodent malaria parasite at 3.7 mg/kg/day in vivo by oral route. These findings confirm the traditional use of this herbal tea. (c) 2006 Elsevier Ireland Ltd. All rights reserved.  
  Address Univ Toulouse 3, UMR 152, Ctr IRD, F-97323 Cayenne, French Guiana, Email: deharo@cayenne.ird.fr  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER IRELAND LTD Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0378-8741 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000241573000023 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 173  
Permanent link to this record
 

 
Author Croft, H.; Chen, J.M.; Wang, R.; Mo, G.; Luo, S.; Luo, X.; He, L.; Gonsamo, A.; Arabian, J.; Zhang, Y.; Simic-Milas, A.; Noland, T.L.; He, Y.; Homolová, L.; Malenovský, Z.; Yi, Q.; Beringer, J.; Amiri, R.; Hutley, L.; Arellano, P.; Stahl, C.; Bonal, D. url  doi
openurl 
  Title The global distribution of leaf chlorophyll content Type Journal Article
  Year 2020 Publication Remote Sensing of Environment Abbreviated Journal Remote Sens. Environ.  
  Volume 236 Issue 111479 Pages  
  Keywords  
  Abstract Leaf chlorophyll is central to the exchange of carbon, water and energy between the biosphere and the atmosphere, and to the functioning of terrestrial ecosystems. This paper presents the first spatially-continuous view of terrestrial leaf chlorophyll content (ChlLeaf) at the global scale. Weekly maps of ChlLeaf were produced from ENVISAT MERIS full resolution (300 m) satellite data using a two-stage physically-based radiative transfer modelling approach. Firstly, leaf-level reflectance was derived from top-of-canopy satellite reflectance observations using 4-Scale and SAIL canopy radiative transfer models for woody and non-woody vegetation, respectively. Secondly, the modelled leaf-level reflectance was input into the PROSPECT leaf-level radiative transfer model to derive ChlLeaf. The ChlLeaf retrieval algorithm was validated using measured ChlLeaf data from 248 sample measurements at 28 field locations, and covering six plant functional types (PFTs). Modelled results show strong relationships with field measurements, particularly for deciduous broadleaf forests (R2 = 0.67; RMSE = 9.25 microg cm-2; p < 0.001), croplands (R2 = 0.41; RMSE = 13.18 microg cm-2; p < 0.001) and evergreen needleleaf forests (R2 = 0.47; RMSE = 10.63 microg cm-2; p < 0.001). When the modelled results from all PFTs were considered together, the overall relationship with measured ChlLeaf remained good (R2 = 0.47, RMSE = 10.79 microg cm-2; p < 0.001). This result is an improvement on the relationship between measured ChlLeaf and a commonly used chlorophyll-sensitive spectral vegetation index; the MERIS Terrestrial Chlorophyll Index (MTCI; R2 = 0.27, p < 0.001). The global maps show large temporal and spatial variability in ChlLeaf, with evergreen broadleaf forests presenting the highest leaf chlorophyll values, with global annual median values of 54.4 microg cm-2. Distinct seasonal ChlLeaf phenologies are also visible, particularly in deciduous plant forms, associated with budburst and crop growth, and leaf senescence. It is anticipated that this global ChlLeaf product will make an important step towards the explicit consideration of leaf-level biochemistry in terrestrial water, energy and carbon cycle modelling.  
  Address UMR EEF, INRA Université de Lorraine, Champenoux54280, France  
  Corporate Author Thesis  
  Publisher (down) Elsevier Inc. Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 00344257 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number EcoFoG @ webmaster @ Serial 898  
Permanent link to this record
 

 
Author Fortunel, C.; Violle, C.; Rourmet, C.; Buatois, B.; Navas, M.L.; Garnier, E. openurl 
  Title Allocation strategies and seed traits are hardly affected by nitrogen supply in 18 species differing in successional status Type Journal Article
  Year 2009 Publication Perspectives in Plant Ecology Evolution and Systematics Abbreviated Journal Perspect. Plant Ecol. Evol. Syst.  
  Volume 11 Issue 4 Pages 267-283  
  Keywords Allometry; Reproductive output; Seed mass; Nitrogen concentration of organs; Succession; Nitrogen supply  
  Abstract Species performance depends on ecological strategies, revealed by suites of traits, conferring different relative ecological advantages in different environments. Although current knowledge on plant strategies along successional gradients is derived from studies conducted in situ, actually quantifying these strategies requires disentangling the effects of environmental factors from intrinsic differences between species. Here we tested whether allocation strategies and seed traits differ among successional stages and nitrogen levels. To this aim, we assessed biomass and nitrogen allocations and seed traits variations for 18 species, differing in life history and belonging to three stages of a Mediterranean old-field succession. These species were grown as monocultures in an experimental garden under limiting and non-limiting nitrogen supply. Early successional species allocated allometrically more nitrogen and proportionally more biomass to reproduction, and set more seeds than later successional species. Seed mass increased with successional status and was negatively related to seed number. Early successional species thus produced more but less-provisioned seeds, suggesting better colonization abilities. These patterns were not the sole consequence of the replacement of annuals by perennials along the successional gradient, since comparable trends were also observed within each life history. Allocation patterns were generally not altered by nitrogen supply and the higher nitrogen content in vegetative organs of plants grown under high nitrogen supply was not retranslocated from leaves to seeds during seed development. We therefore conclude that differences in plant ecological strategies in species characteristics from contrasting successional stages appear to be intrinsic properties of the studied species, and independent from environmental conditions. (c) 2009 Rubel Foundation, ETH Zurich. Published by Elsevier GmbH. All rights reserved.  
  Address [Fortunel, Claire; Violle, Cyrille; Rourmet, Catherine; Buatois, Bruno; Garnier, Eric] Ctr Ecol Fonct & Evolut, CNRS, UMR 5175, F-34293 Montpellier 5, France, Email: claire.fortunel@ecofog.gf  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER GMBH, URBAN & FISCHER VERLAG Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1433-8319 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000271799900003 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 93  
Permanent link to this record
 

 
Author Dejean, A.; Djieto-Lordon, C.; Cereghino, R.; Leponce, M. openurl 
  Title Ontogenetic succession and the ant mosaic: An empirical approach using pioneer trees Type Journal Article
  Year 2008 Publication Basic and Applied Ecology Abbreviated Journal Basic Appl. Ecol.  
  Volume 9 Issue 3 Pages 316-323  
  Keywords ant-plant relationships; dynamics of associations; myrmecophytes; species turnover; tropical rainforests  
  Abstract Arboreal ant mosaics have been intensively investigated, but what generates these mosaics remains poorly understood. In this paper, we hypothesize that the dynamics of arboreal ant mosaics could be better understood by examining the ontogenetic succession of ants in tropical trees. We used three African pioneer tree species as biological models. Lophira alata (Ochnaceae) is a long-lived species that does not furnish any reward (i.e., extra-floral nectaries [EFNs], shelter) to ants, Anthocleista vogelii (Gentianaceae) bears extremely well-developed EFNs, and Barteria fistulosa (Passifloraceae) is a long-lived myrmecophyte providing both EFNs and domatia. For both L. alata and A. vogelii, we noted a succession of different associated ants as the plants grew and aged. Ground-nesting, arborealforaging ant species were the first associates, followed by arboreal species that build nests with the leaves of their host trees, together with some species nesting opportunistically in pre-existing cavities. Carton-building Crematogaster species were the last in this succession. The presence of EFNs on A. vogelii slows species turnover, demonstrating that the plant exerts some control over its ant associates. The comparison with B. fistulosa, which generally remains associated with the same plant-ant species during its entire ontogeny, highlights the importance of the selective attractiveness of the trees for their associated ants – or, perhaps, the existence of plant filters that screen arriving ants. (C) 2007 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.  
  Address [Dejean, Alain] CNRS Guyane, UPS 2561, F-97300 Cayenne, France, Email: alain.dejean@wanadoo.fr  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER GMBH, URBAN & FISCHER VERLAG Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1439-1791 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000256734600013 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 138  
Permanent link to this record
 

 
Author Herault, B. openurl 
  Title Reconciling niche and neutrality through the Emergent Group approach Type Journal Article
  Year 2007 Publication Perspectives in Plant Ecology Evolution and Systematics Abbreviated Journal Perspect. Plant Ecol. Evol. Syst.  
  Volume 9 Issue 2 Pages 71-78  
  Keywords Biodiversity; ecological equivalency; biological traits; neutral theory; niche differentiation; redundancy  
  Abstract Both niche and neutral theories have been suggested as potential frameworks for modelling biodiversity. Niche models assume that biological traits represent evolutionary adaptations and define individuals in terms of functional trade-offs. Neutral models assume that all individuals at a single trophic level are functionally equivalent on a per capita basis with respect to their birth, death, dispersal and speciation. The opinion of many researchers is that neutral and niche processes operate simultaneously to generate diversity without knowing how the unification of both models can be achieved. Recently, several theoretical papers have reported evidence on the evolutionary emergence of niche structures shaping the emergence of groups of similar species. In this way, an Emergent Group is defined as a set of species that have a similar functional niche owing to a convergent ecological strategy. Central to the Emergent Group concept are the assumptions of functional equivalence within and of functional divergence between Emergent Groups. Within an Emergent Group, species richness is subject to a zero-sum rule set by the balance between the rate of individual loss and of immigration. Between Emergent Groups, tradeoffs such as seed size/seedling competitivity, investment in reproductive system/investment in vegetative systems or competitive ability/predator invulnerability are cornerstones of the evolutionary divergence. Delineating Emergent Groups amounts to reaching a compromise between maximizing niche differentiation (i.e. maximizing differences in functional tradeoffs) between Emergent Groups and maximizing neutrality within Emergent Groups. Up to now, the Emergent Group concept has been mostly proposed by theoretical scientists but it should be tested by empirical ecologists. The way in which niche and neutral models could be combined provides a profitable opportunity for theoretical and empirical scientists to collaborate fruitfully. (c) 2007 Rubel Foundation, ETH Zurich. Published by Elsevier GmbH. All rights reserved.  
  Address [Herault, Bruno] Univ Antilles Guyane, UMR Ecol Forets Guyane, F-97379 Kourou, France, Email: Bruno.Herault@cirad.fr  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER GMBH, URBAN & FISCHER VERLAG Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1433-8319 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000251685100002 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 147  
Permanent link to this record
 

 
Author Orivel, J.; Corbara, B.; Dejean, A. openurl 
  Title Constraints and adaptation in the arboreal life of ants Type Journal Article
  Year 2010 Publication Biofutur Abbreviated Journal Biofutur  
  Volume 315 Issue Pages 34-37  
  Keywords  
  Abstract  
  Address [Orivel, Jerome] CNRS, UMR Ecol Forets Guyane, Kourou 97379, French Guiana  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0294-3506 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000284987300004 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 17  
Permanent link to this record
 

 
Author Leroy, C.; Cereghino, R.; Camas, J.F.; Pelozuelo, L.; Dejean, A.; Corbara, B. openurl 
  Title Several aspects of the life of vascular epiphytes Type Journal Article
  Year 2010 Publication Biofutur Abbreviated Journal Biofutur  
  Volume 315 Issue Pages 38-41  
  Keywords  
  Abstract  
  Address [Leroy, Celine] CNRS, UMR Ecol Forets Guyane, Kourou 97379, French Guiana  
  Corporate Author Thesis  
  Publisher (down) ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0294-3506 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000284987300005 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 18  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: