| Records |
| Author |
Amusant, N.; Digeon, A.; Descroix, L.; Bruneau, O.; Bezard, V.; Beauchene, J. |
| Title |
Planting rosewood for sustainable essential oil production: Influence of surrounding forest and seed provenance on tree growth and essential oil yields |
Type |
Journal Article |
| Year |
2015 |
Publication |
Bois et Forets des Tropiques |
Abbreviated Journal |
Bois et Forets des Tropiques |
| Volume |
326 |
Issue |
4 |
Pages |
57-65 |
| Keywords |
Aniba rosaeodora Ducke; Dendrometric traits; Essential oil yield; French Guiana; Light effect; Plantation; Rosewood; Seed provenance |
Abstract  |
Essential oil from the Amazonian rosewood tree (Aniba rosaeodora Ducke) is valued as an important aromatic ingredient in luxury perfumes. Due to over-harvesting in recent decades, rosewood is now listed as an endangered species. Rosewood tree planting is now considered a viable alternative to logging as it can support both reforestation and sustainable agriculture thanks to sales of the essential oil extracted. We planted 605 rosewood trees in French Guiana from two seeds of local provenance, in a 5 445 m2 plot surrounded by primary forest. Nine years after planting, we assessed the effect of the position of the tree relative to the surrounding forest and of the seed provenance on dendrometric traits (height, circumference, above ground woody biomass) and hence on the yield of essential oil. Measurements were made on 99 trees. Average growth rates for the young trees were 0.7 m/year in height, 2.5 cm/year in stem circumference and 990.5 kg dry mass/ha/year in aboveground biomass, while essential oil yields ranged from 0.6% to 3.6% with a mean of 2.1%. The position of the tree relative to the surrounding forest was the main factor affecting tree growth and essential oil production: trees located close to the surrounding forest were significantly smaller and accumulated less essential oil due to the reduced availability of light. Seed provenance had less effect on dendrometric traits and essential oil yields. In conclusion, although planting practices will need to be adapted to avoid the edge effects of proximity to the forest, short-rotation cultivation of rosewood trees could be the optimum and most economically attractive system for the production of essential oil. |
| Address |
Office National des Forêts (ONF), Département R and D, Pôle de Cayenne, Réserve de Montabo, BP 87002, Cayenne Cedex, French Guiana |
| 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: 7 March 2016 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
670 |
| Permanent link to this record |
| |
|
| |
| Author |
Leroy, C.; Corbara, B.; Dejean, A.; Céréghino, R. |
| Title |
Potential sources of nitrogen in an ant-garden tank-bromeliad |
Type |
Journal Article |
| Year |
2009 |
Publication |
Plant Signaling and Behavior |
Abbreviated Journal |
Plant. Signal. Behav. |
| Volume |
4 |
Issue |
9 |
Pages |
868-870 |
| Keywords |
Aechmea mertensii Camponotus femoratus nitrogen nitrogen stable isotope Pachycondyla goeldii plant-insect interactions phytotelmata |
| Abstract |
Epiphytic plants in general and bromeliads in particular live in a water and nutrient-stressed environment often limited in nitrogen. Thus, these plants have developed different ways to survive in such an environment. We focused on Aechmea mertensii (Bromeliaceae), which is both a tank-bromeliad and an ant-garden (AG) epiphyte initiated by either the ants Camponotus femoratus or Pachycondyla goeldii. By combining a study of plant morphology and physiology associated with aquatic insect biology, we demonstrate that the ant species influences the leaf structure of the bromeliad, the structure of the aquatic community in its tank, and nutrient assimilation by the leaves. Based on nitrogen and nitrogen stable isotope measurements of the A. mertensii leaves, the leaf litter inside of the tank and the root-embedded carton nest, we discuss the potential sources of available nitrogen for the plant based on the ant partner. We demonstrate the existence of a complex ant-plant interaction that subsequently affects the biodiversity of a broader range of organisms that are themselves likely to influence nutrient assimilation by the A. mertensii leaves in a kind of plant-invertebrate-plant feedback loop. |
| Address |
|
| 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 |
Potential sources of nitrogen in an ant-garden tank-bromeliad |
Approved |
no |
| Call Number |
EcoFoG @ eric.marcon @ 12 |
Serial |
186 |
| Permanent link to this record |
| |
|
| |
| Author |
Céréghino, R.; Corbara, B.; Hénaut, Y.; Bonhomme, C.; Compin, A.; Dejean, A. |
| Title |
Ant and spider species as surrogates for functional community composition of epiphyte-associated invertebrates in a tropical moist forest |
Type |
Journal Article |
| Year |
2019 |
Publication |
Ecological Indicators |
Abbreviated Journal |
|
| Volume |
96 |
Issue |
|
Pages |
694-700 |
| Keywords |
Functional traits; Indicator species; Phytotelmata; Rainforests; Surrogacy; Tank bromeliads |
| Abstract |
Epiphytes represent up to 50% of all plant species in rainforests, where they host a substantial amount of invertebrate biomass. Efficient surrogates for epiphyte invertebrate communities could reduce the cost of biomonitoring surveys while preventing destructive sampling of the plants. Here, we focus on the invertebrate communities associated to tank bromeliads. We ask whether the presence of particular ant and/or spider taxa (easily surveyed taxa) that use these plants as nesting and/or foraging habitats predicts functional trait combinations of aquatic invertebrate communities hosted by the plants. Functional community composition of invertebrates was predicted both by bromeliad habitat features and the presence of certain ant and spider species. The ant Azteca serica preferred wider bromeliad rosettes that trap large amount of detritus, indicating interstitial-like food webs dominated by deposit feeders that burrow in fine particulate organic matter. Leucauge sp. spiders preferred narrower bromeliad rosettes bearing smaller detrital loads, thereby indicating a dominance of pelagic filter-feeding and predatory invertebrates in the water-filled leaf axils. Both Neoponera villosa ants and Eriophora sp. spiders preferred rosettes at intermediate size bearing moderate amounts of detritus, indicating a benthic food web dominated by leaf shredders and gathering collectors. Owing to the animal diversity and biomass supported by rainforest epiphytes, our approach would deserve to be further tested on a range of epiphytes involved in tight interactions with invertebrates. In this context, surrogate species could serve both as indicators of functional diversity, and as early-warning indicators of network disassembly. |
| Address |
|
| 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 |
1470-160x |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
841 |
| Permanent link to this record |
| |
|
| |
| Author |
Amusant, N.; Fournier, M.; Beauchene, J. |
| Title |
Colour and decay resistance and its relationships in Eperua grandiflora |
Type |
Journal Article |
| Year |
2008 |
Publication |
Annals of Forest Science |
Abbreviated Journal |
Ann. For. Sci. |
| Volume |
65 |
Issue |
8 |
Pages |
806 |
| Keywords |
natural durability; colour; decay resistance; variability; heartwood; tropical wood |
| Abstract |
Eperua grandiflora, which is widely distributed in the French Guiana forest region, shows high variability in decay resistance. Further information concerning this wood quality parameter is necessary, but standard testing methods are complex and time-consuming. We assessed the use of colorimetry to determine durability in heartwood samples from a range of trees. Eperua grandiflora colour parameters were measured using a CIELAB system, revealing that the tree effect was greater than the radial position and height effects. The wood samples were exposed to Coriolus versicolor and Antrodia sp. according to two European standards (En 350-1 and XP CEN TS 15083-1). Eperua grandiflora is more susceptible to brown rot. These two standards did not give the same durability classes. The high variation in natural durability was due to the tree effect. These two properties were found to be correlated and the assessment also distinguished the extreme durability classes but they are not sufficient to classify the class of durability of this species. |
| Address |
[Amusant, Nadine] CIRAD, PERSYT, UR Valorisat Bois Tropicaux, F-34538 Montpellier 5, France, Email: nadine.amusant@cirad.fr |
| 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:000261431600006 |
Approved |
no |
| Call Number |
EcoFoG @ eric.marcon @ |
Serial |
127 |
| Permanent link to this record |
| |
|
| |
| Author |
Michalet, S.; Rohr, J.; Warshan, D.; Bardon, C.; Roggy, J.-C.; Domenach, A.-M.; Czarnes, S.; Pommier, T.; Combourieu, B.; Guillaumaud, N.; Bellvert, F.; Comte, G.; Poly, F. |
| Title |
Phytochemical analysis of mature tree root exudates in situ and their role in shaping soil microbial communities in relation to tree N-acquisition strategy |
Type |
Journal Article |
| Year |
2013 |
Publication |
Plant Physiology and Biochemistry |
Abbreviated Journal |
Plant Physiol. Biochem. |
| Volume |
72 |
Issue |
|
Pages |
169-177 |
| Keywords |
Chemical ecology; Denitrification; Eperua falcata; Metabolic profiling; Mycorrhizae; Plant-microbes interactions; Root exudates |
| Abstract |
Eperua falcata (Aublet), a late-successional species in tropical rainforest and one of the most abundant tree in French Guiana, has developed an original strategy concerning N-acquisition by largely preferring nitrate, rather than ammonium (H. Schimann, S. Ponton, S. Hättenschwiler, B. Ferry, R. Lensi, A.M. Domenach, J.C. Roggy, Differing nitrogen use strategies of two tropical rainforest tree species in French Guiana: evidence from 15N natural abundance and microbial activities, Soil Biol. Biochem. 40 (2008) 487-494). Given the preference of this species for nitrate, we hypothesized that root exudates would promote nitrate availability by (a) enhancing nitrate production by stimulating ammonium oxidation or (b) minimizing nitrate losses by inhibiting denitrification.Root exudates were collected in situ in monospecific planted plots. The phytochemical analysis of these exudates and of several of their corresponding root extracts was achieved using UHPLC/DAD/ESI-QTOF and allowed the identification of diverse secondary metabolites belonging to the flavonoid family.Our results show that (i) the distinct exudation patterns observed are related to distinct root morphologies, and this was associated with a shift in the root flavonoid content, (ii) a root extract representative of the diverse compounds detected in roots showed a significant and selective metabolic inhibition of isolated denitrifiers invitro, and (iii) in soil plots the abundance of nirK-type denitrifiers was negatively affected in rhizosphere soil compared to bulk. Altogether this led us to formulate hypothesis concerning the ecological role of the identified compounds in relation to N-acquisition strategy of this species. © 2013 Elsevier Masson SAS. |
| Address |
SOLICAZ, c/o Guyane Technopole 16 bis rue du 14 Juillet, 97300 Cayenne, French Guiana |
| 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 |
09819428 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 15 November 2013; Source: Scopus; Coden: Ppbie; doi: 10.1016/j.plaphy.2013.05.003; Language of Original Document: English; Correspondence Address: Michalet, S.; Université Lyon1, CNRS, UMR5557, INRA, USC1364, Ecologie Microbienne, Centre d'Etude des Substances Naturelles, Pavillon Nétien, ISPB, 8 Avenue Rockefeller, 69373 Lyon cedex, France; email: sergemichalet@yahoo.fr |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
509 |
| Permanent link to this record |
| |
|
| |
| Author |
Cantera, I.; Cilleros, K.; Valentini, A.; Cerdan, A.; Dejean, T.; Iribar, A.; Taberlet, P.; Vigouroux, R.; Brosse, S. |
| Title |
Optimizing environmental DNA sampling effort for fish inventories in tropical streams and rivers |
Type |
Journal Article |
| Year |
2019 |
Publication |
Scientific Reports |
Abbreviated Journal |
Sci. Rep. |
| Volume |
9 |
Issue |
|
Pages |
3085 |
| Keywords |
|
| Abstract |
Environmental DNA (eDNA) metabarcoding is a promising tool to estimate aquatic biodiversity. It is based on the capture of DNA from a water sample. The sampled water volume, a crucial aspect for efficient species detection, has been empirically variable (ranging from few centiliters to tens of liters). This results in a high variability of sampling effort across studies, making comparisons difficult and raising uncertainties about the completeness of eDNA inventories. Our aim was to determine the sampling effort (filtered water volume) needed to get optimal inventories of fish assemblages in species-rich tropical streams and rivers using eDNA. Ten DNA replicates were collected in six Guianese sites (3 streams and 3 rivers), resulting in sampling efforts ranging from 17 to 340 liters of water. We show that sampling 34 liters of water detected more than 64% of the expected fish fauna and permitted to distinguish the fauna between sites and between ecosystem types (stream versus rivers). Above 68 liters, the number of detected species per site increased slightly, with a detection rate higher than 71%. Increasing sampling effort up to 340 liters provided little additional information, testifying that filtering 34 to 68 liters is sufficient to inventory most of the fauna in highly diverse tropical aquatic ecosystems. © 2019, The Author(s). |
| Address |
HYDRECO, Laboratoire Environnement de Petit Saut, B.P 823, Kourou Cedex, F-97388, French Guiana |
| Corporate Author |
|
Thesis |
|
| Publisher |
Nature Publishing Group |
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
20452322 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
865 |
| Permanent link to this record |
| |
|
| |
| Author |
Coutant, Opale ; Richard-Hansen, Cecile ; de Thoisy, Benoit ; Decotte, Jean-Baptiste ; Valentini, Alice ; Dejean, Tony ; Vigouroux, Régis ; Murienne, Jérôme ; Brosse, Sébastien |
| Title |
Amazonian mammal monitoring using aquatic environmental DNA |
Type |
Journal Article |
| Year |
2021 |
Publication |
Molecular Ecology Resources |
Abbreviated Journal |
|
| Volume |
21 |
Issue |
6 |
Pages |
1875-1888 |
| Keywords |
|
| Abstract |
Environmental DNA (eDNA) metabarcoding has emerged as one of the most efficient methods to assess aquatic species presence. While the method can in theory be used to investigate nonaquatic fauna, its development for inventorying semi-aquatic and terrestrial fauna is still at an early stage. Here we investigated the potential of aquatic eDNA metabarcoding for inventorying mammals in Neotropical environments, be they aquatic, semi-aquatic or terrestrial. We collected aquatic eDNA in 96 sites distributed along three Guianese watersheds and compared our inventories to expected species distributions and field observations derived from line transects located throughout French Guiana. Species occurrences and emblematic mammalian fauna richness patterns were consistent with the expected distribution of fauna and our results revealed that aquatic eDNA metabarcoding brings additional data to line transect samples for diurnal nonaquatic (terrestrial and arboreal) species. Aquatic eDNA also provided data on species not detectable in line transect surveys such as semi-aquatic, aquatic and nocturnal terrestrial and arboreal species. Although the application of eDNA to inventory mammals still needs some developments to optimize sampling efficiency, it can now be used as a complement to traditional surveys. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
Wiley |
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 |
1015 |
| Permanent link to this record |
| |
|
| |
| Author |
Marcon, E.; Herault, B. |
| Title |
entropart: An R package to measure and partition diversity |
Type |
Journal Article |
| Year |
2015 |
Publication |
Journal of Statistical Software |
Abbreviated Journal |
Journal of Statistical Software |
| Volume |
67 |
Issue |
8 |
Pages |
1-26 |
| Keywords |
Biodiversity; Entropy; Partitioning |
| Abstract |
entropart is a package for R designed to estimate diversity based on HCDT entropy or similarity-based entropy. It allows calculating species-neutral, phylogenetic and functional entropy and diversity, partitioning them and correcting them for estimation bias. © 2015, American Statistical Association. All rights reserved. |
| Address |
Cirad, Campus agronomique, BP 316, Kourou, French Guiana |
| 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: 22 October 2015 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
633 |
| Permanent link to this record |
| |
|
| |
| Author |
Leroy, C.; Gueroult, M.; Wahyuni, N.S.; Escoute, J.; Cereghino, R.; Sabatier, S.; Auclair, D. |
| Title |
Morphogenetic trends in the morphological, optical and biochemical features of phyllodes in Acacia mangium Willd (Mimosaceae) |
Type |
Journal Article |
| Year |
2009 |
Publication |
Trees-Structure and Function |
Abbreviated Journal |
Trees-Struct. Funct. |
| Volume |
23 |
Issue |
1 |
Pages |
37-49 |
| Keywords |
Chlorophyll; Phyllode morphology; Phyllode anatomy; Nitrogen; Optical properties; Plant architecture |
| Abstract |
Endogenous variations in the annual growth of trees suggest that similar trends would occur in phyllodes. In comparison to leaves, the characteristics of phyllodes are less well known, hence this study examines the effects of architectural position and age of tree on the phyllodes of Acacia mangium. Phyllodes were investigated on 1-, 2-, and 3-year-old trees from three axis positions within the crown. We focused on the morphological, optical and biochemical traits of the phyllodes. The increase in phyllode area and lamina thickness is more pronounced in the older trees. Leaf mass area (LMA), stomatal density, nitrogen and chlorophyll content increase with tree age. The values of these characteristics decrease from the main stem to the lower branches for the older trees. Phyllode light absorptance increased with tree age whereas reflectance was higher for the upper position compared to the lower position within the crown. Carotenoid content and chlorophyll a/b ratio were higher for the younger phyllodes of younger trees. Increasing tree size induced modifications in the phyllode characteristics which are influenced by both morphogenetic and light gradients within the crown. This study demonstrated pronounced changes in terms of morphological and functional indicators of photosynthetic capacity in relation to phyllode position within the crown and to tree age. These morphogenetic effects on the phyllode characteristics should be taken into account in studies on phenotypic plasticity. |
| Address |
[Sabatier, Sylvie] CIRAD, UMR AMAP BotAnique & BioinforMat Architecture, F-34398 Montpellier 5, France, Email: sylvie-annabel.sabatier@cirad.fr |
| Corporate Author |
|
Thesis |
|
| Publisher |
SPRINGER |
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0931-1890 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
ISI:000262538700005 |
Approved |
no |
| Call Number |
EcoFoG @ eric.marcon @ |
Serial |
206 |
| Permanent link to this record |
| |
|
| |
| Author |
Orivel, J.; Klimes, P.; Novotny, V.; Leponce, M. |
| Title |
Resource use and food preferences in understory ant communities along a complete elevational gradient in Papua New Guinea |
Type |
Journal Article |
| Year |
2018 |
Publication |
Biotropica |
Abbreviated Journal |
Biotropica |
| Volume |
50 |
Issue |
4 |
Pages |
641-648 |
| Keywords |
altitudinal gradient; food resources; Formicidae; Mt Wilhelm; nutritional ecology |
| Abstract |
Elevational gradients provide an interesting opportunity for studying the effect of climatic drivers over short distances on the various facets of biodiversity. It is globally assumed that the decrease in species richness with increasing elevation follows mainly the decrease in ecosystem productivity, but studies on functional diversity still remain limited. Here, we investigated how resource use and food preferences by both individual ant species and communities foraging in the understory vary with elevation along a complete elevational gradient (200 to 3200 m asl). Five bait types reflecting some of the main ecosystem processes in which ants are involved were tested: mutualism (sucrose and melezitose), predation (live termites), and detritivory (crushed insects and chicken feces). The observed monotonic decrease in both species richness and occurrences with elevation increase was accompanied by changes in some of the tested ecosystem processes. Such variations can be explained by resource availability and/or resource limitation: Predation and bird feces removal decreased with increasing elevation possibly reflecting a decline in species able to use these resources, while insect detritivory and nectarivory were most probably driven by resource limitation (or absence of limitation), as their relative use did not change along the gradient. Consequently, resource attractiveness (i.e., food preferences at the species level) appears as an important factor in driving community structuring in ants together with the abiotic environmental conditions. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
John Wiley & Sons, Ltd (10.1111) |
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0006-3606 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
doi: 10.1111/btp.12539 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
893 |
| Permanent link to this record |
