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Chang, S.-S.; Quignard, F.; Clair, B. | ||||
| Title | The effect of sectioning and ultrasonication on the mesoporosity of poplar tension wood | Type | Journal Article | ||
| Year | 2017 | Publication | Wood Science and Technology | Abbreviated Journal | |
| Volume | 51 | Issue | 3 | Pages | 507-516 |
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| Abstract | Increasing interest in understanding tension stress generation in tension wood with fibres having a gelatinous layer (G-layer) has focused attention on the specific role of this layer. To distinguish its contribution from those of other wall layers, the G-layer of wood sections was isolated by ultrasonication. The aim of this study was to assess the effect of sectioning and of the ultrasonic treatment on the mesoporosity of tension wood using nitrogen adsorption–desorption analysis. The results showed that the process of isolating the G-layer using ultrasonication strongly affects its mesoporosity. Most damage was found to occur during sectioning rather than as a result of the 15-min ultrasonic treatment. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1432-5225 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ Chang2017 | Serial | 782 | ||
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| Author |
Chang, S.S.; Clair, B.; Ruelle, J.; Beauchene, J.; Di Renzo, F.; Quignard, F.; Zhao, G.J.; Yamamoto, H.; Gril, J. | ||||
| Title | Mesoporosity as a new parameter for understanding tension stress generation in trees | Type | Journal Article | ||
| Year | 2009 | Publication | Journal of Experimental Botany | Abbreviated Journal | J. Exp. Bot. |
| Volume | 60 | Issue | 11 | Pages | 3023-3030 |
| Keywords | Growth stress; hydrogel; mesoporosity; tension wood | ||||
| Abstract | The mechanism for tree orientation in angiosperms is based on the production of high tensile stress on the upper side of the inclined axis. In many species, the stress level is strongly related to the presence of a peculiar layer, called the G-layer, in the fibre cell wall. The structure of the G-layer has recently been described as a hydrogel thanks to N-2 adsorption-desorption isotherms of supercritically dried samples showing a high mesoporosity (pores size from 2-50 nm). This led us to revisit the concept of the G-layer that had been, until now, only described from anatomical observation. Adsorption isotherms of both normal wood and tension wood have been measured on six tropical species. Measurements show that mesoporosity is high in tension wood with a typical thick G-layer while it is much less with a thinner G-layer, sometimes no more than normal wood. The mesoporosity of tension wood species without a G-layer is as low as in normal wood. Not depending on the amount of pores, the pore size distribution is always centred around 6-12 nm. These results suggest that, among species producing fibres with a G-layer, large structural differences of the G-layer exist between species. | ||||
| Address | [Chang, Shan-Shan; Clair, Bruno; Gril, Joseph] Univ Montpellier 2, LMGC, CNRS, F-34095 Montpellier 5, France, Email: clair@lmgc.univ-montp2.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | OXFORD UNIV PRESS | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0022-0957 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000268588300008 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 107 | ||
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| 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. | ||||
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| Publisher | Frontiers Media | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 1049 | ||
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| Author |
Charles-Dominique, P.; Chave, J.; Dubois, M.A.; De Granville, J.J.; Riera, B.; Vezzoli, C. | ||||
| Title | Colonization front of the understorey palm Astrocaryum sciophilum in a pristine rain forest of French Guiana | Type | Journal Article | ||
| Year | 2003 | Publication | Global Ecology and Biogeography | Abbreviated Journal | Glob. Ecol. Biogeogr. |
| Volume | 12 | Issue | 3 | Pages | 237-248 |
| Keywords | Astrocaryum sciophilum; French Guiana; neotropical palaeoecology; palm ecology; population edge; refuges; scatter-hoarding; seed dispersal; spatial pattern | ||||
| Abstract | Aims Astrocaryum sciophilum (Miq.) Pulle (Arecaceae) is an understorey palm, endemic to north-eastern South America with a patchy distribution. We tested the hypothesis that the spatial distribution of this palm species is not in equilibrium but is slowly colonizing the forest understorey. Location Inventories and seed dispersal studies were conducted in the undisturbed tropical forest close to the Nouragues research station, French Guiana. Additional data were collected in the entire territory of French Guiana. Methods We studied the demography of A. sciophilum on a 20-ha plot located at the edge of its distribution. The age of the palms was estimated by postulating an exponentially decreasing abundance by age class. Direct seed dispersal experiments were also conducted, to estimate dispersal parameters. The seeds of A. sciophilum were dispersed only by rodents. This information was used to parameterize a forest growth simulator, to study the spatial spread of this species. Results Within the sampling plot, the density of A. sciophilum dropped sharply from about 500 individuals per hectare to zero. The maturation age was estimated to be 170+/-70 years, and over 55 years with 95% confidence. Seed-dispersal experiments yielded an average seed dispersal distance of 11 m and a maximum estimated dispersal distance of 125 m across a generational span of 55 years to maturity. Therefore, the maximal estimated colonization speed is 2.3 m/y. Conclusions Empirical results and numerical simulations suggest that the boundary of the A. sciophilum population is a colonization front, and that the range of this species is slowly expanding. The implications of this result in respect of palaeoenvironmental changes in this region are discussed. | ||||
| Address | Natl Museum Nat Hist, Lab Ecol Gen, F-91800 Brunoy, France | ||||
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| Publisher | BLACKWELL PUBLISHING LTD | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0960-7447 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000182184100006 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 273 | ||
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| Author |
Chartier, M.; Gibernau, M.; Renner, S.S. | ||||
| Title | The evolution of pollinator-plant interaction types in the araceae | Type | Journal Article | ||
| Year | 2014 | Publication | Evolution | Abbreviated Journal | Evolution |
| Volume | 68 | Issue | 5 | Pages | 1533-1543 |
| Keywords | Ancestral state reconstruction; Inflorescence traits; Phylogeny; Pollination syndromes; Trap flowers | ||||
| Abstract | Most plant-pollinator interactions are mutualistic, involving rewards provided by flowers or inflorescences to pollinators. Antagonistic plant-pollinator interactions, in which flowers offer no rewards, are rare and concentrated in a few families including Araceae. In the latter, they involve trapping of pollinators, which are released loaded with pollen but unrewarded. To understand the evolution of such systems, we compiled data on the pollinators and types of interactions, and coded 21 characters, including interaction type, pollinator order, and 19 floral traits. A phylogenetic framework comes from a matrix of plastid and new nuclear DNA sequences for 135 species from 119 genera (5342 nucleotides). The ancestral pollination interaction in Araceae was reconstructed as probably rewarding albeit with low confidence because information is available for only 56 of the 120-130 genera. Bayesian stochastic trait mapping showed that spadix zonation, presence of an appendix, and flower sexuality were correlated with pollination interaction type. In the Araceae, having unisexual flowers appears to have provided the morphological precondition for the evolution of traps. Compared with the frequency of shifts between deceptive and rewarding pollination systems in orchids, our results indicate less lability in the Araceae, probably because of morphologically and sexually more specialized inflorescences. © 2013 The Society for the Study of Evolution. | ||||
| Address | Department of Biology, University of Munich, Munich, 80638, Germany | ||||
| Corporate Author | Thesis | ||||
| Publisher | Society for the Study of Evolution | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 15585646 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 30 May 2014; Source: Scopus; Coden: Evola; Language of Original Document: English | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 544 | ||
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| Author |
Chartier, M.; Pélozuelo, L.; Buatois, B.; Bessière, J.-M.; Gibernau, M. | ||||
| Title | Geographical variations of odour and pollinators, and test for local adaptation by reciprocal transplant of two European Arum species | Type | Journal Article | ||
| Year | 2013 | Publication | Functional Ecology | Abbreviated Journal | Funct. Ecol. |
| Volume | 27 | Issue | 6 | Pages | 1367-1381 |
| Keywords | Deception; Diptera; Floral scent; Geographical mosaic; Psychodidae; Sapromyophily; Transplant experiment | ||||
| Abstract | Interactions between entomophilous plants and their pollinators are one of the major factors shaping the evolution of floral features. As species are distributed in more or less connected populations, they have evolved in a geographical mosaic of co-evolution were the outcome of the plant-pollinator interaction is likely to vary as a result of local adaptations. Arum italicum and Arum maculatum are two species of Araceae which deceive their fly pollinators by mimicking the odour of their oviposition sites. Whereas A. italicum is known to be pollinated by flies belonging to different families (i.e. opportunist), A. maculatum relies on only two pollinating species of the family Psychodidae throughout its European repartition area (i.e. specialist). The interannual and geographical variations of pollinators and pollinator-attractive odours were described in several populations of the two species over two consecutive years. Furthermore, local adaptation to pollinators was tested by transplanting inflorescence-bearing plants between two different sites and by recording the number and composition of the insect fauna trapped inside the inflorescences during anthesis as a measure of a fitness component. Pollinators and pollinator-attractive odours of the two Arum species varied in time and space, but there was no clear odour structure between populations. When transplanted, inflorescences of both species trapped the same composition and number of insects as native inflorescences at a given site; this indicates that pollinator composition is highly dependent on the local availability of insects. No pattern of local adaptation was found for these two species, but local pollination conditions were shown to strongly affect the degree of geographical variations of these interactions. The lack of a clear odour geographical structure might be due to high gene flow or to similar selective pressures exerted by pollinators, and the high interindividual odour variation may be linked to the deceptive strategy adopted by the two plant species. © 2013 British Ecological Society. | ||||
| Address | Center for Functional and Evolutive Ecology, Université Montpellier 2, 1919 route de Mende, 34293 Montpellier, France | ||||
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| ISSN | 02698463 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 29 November 2013; Source: Scopus; Coden: Fecoe; doi: 10.1111/1365-2435.12122; Language of Original Document: English; Correspondence Address: Gibernau, M.; Joint Research Unit Ecology of Guiana Forests, CNRS-UMR 8172, Campus agronomique, BP 316, Kourou cedex, 97379, France; email: marc.gibernau@ecofog.gf; References: Ackerman, J.D., Cuevas, A.A., Hof, D., Are deception-pollinated species more variable than those offering a reward? (2011) Plant Systematics and Evolution, 293, pp. 91-99; Ackerman, J.D., Meléndez-Ackerman, E.J., Salguero-Faria, J., Variation in pollinator abundance and selection on fragrance phenotypes in an epiphytic orchid (1997) American Journal of Botany, 84, pp. 1383-1390; Adams, R.P., (2007) Identification of Essential Oil Components by Gas Chromatography/Mass Spectroscopy, , 4th edn. Allured Publishing, Carol Stream; Albre, J., Gibernau, M., Reproductive biology of Arum italicum (Araceae) in the South of France (2008) Botanical Journal of the Linnean Society, 156, pp. 43-49; Albre, J., Quilichini, A., Gibernau, M., Pollination ecology of Arum italicum (Araceae) (2003) Botanical Journal of the Linnean Society, 141, pp. 205-214; Anderson, M.J., A new method for non-parametric multivariate analysis of variance (2001) Austral Ecology, 26, pp. 32-46; Anderson, B., Johnson, S.F., The geographic mosaic of coevolution in a plant-pollinator mutualism (2007) Evolution, 62, pp. 220-225; Angert, A.L., Bradshaw, H.D., Schemske, D.W., Using experimental evolution to investigate geographic range limits in monkey flowers (2008) Evolution, 62, pp. 2660-2675; Ayasse, M., Schiestl, F.P., Paulus, H.F., Löfstedt, C., Hannson, B., Ibarra, F., Francke, W., Evolution of reproductive strategies in the sexually deceptive orchid Ophrys sphegodes: how does flower-specific variation of odor signals influence reproductive success? (2000) Evolution, 54, pp. 1995-2006; Blionis, G.J., Vokou, D., Structural and functional divergence of Campanula spatulata subspecies on Mt Olympos (Greece) (2002) Plant Systematics and Evolution, 232, pp. 89-105; Boyce, P.C., Arum – a decade of change (2006) Aroideana, 29, pp. 132-137; Bradshaw, H.D., Schemske, D.W., Allele substitution at a flower colour locus produces a pollinator shift in monkeyflowers (2003) Nature, 426, pp. 176-178; Brown, M., Downs, C.T., Johnson, S.D., Covariation of flower traits and bird pollinator assemblages among pollinations of Kniphofia linearifolia (Asphodelaceae) (2011) Plant Systematics and Evolution, 294, pp. 199-206; Campbell, D.R., Natural selection in Ipomopsis hybrid zones: implications for ecological speciation (2003) New Phytologist, 161, pp. 83-90; Chartier, M., Pelozuelo, L., Gibernau, M., Do floral odor profiles geographically vary with the degree of specificity for pollinators? Investigation in two sapromyophilous Arum species (Araceae) (2011) Annales de la Société Entomologique de France, 47, pp. 71-77; Cosacov, A., Nattero, J., Cocucci, A.A., Variation of pollinator assemblages and pollen limitation in a locally specialized system: the oil-producing Nierembergia liariifolia (Solanaceae) (2008) Annals of Botany, 102, pp. 723-734; Diaz, A., Kite, G.C., A comparison of the pollination ecology of Arum maculatum and A. italicum in England (2002) Watsonia, 24, pp. 171-181; Dormont, L., Jay-Robert, P., Bessière, J.-M., Rapior, S., Lumaret, J.-P., Innate olfactory preferences in dung beetles (2010) The Journal of Experimental Biology, 213, pp. 3177-3185; Dötterl, S., Wolfe, L.M., Jürgens, A., Qualitative and quantitative analyses of flower scent in Silene latifolia (2005) Phytochemistry, 66, pp. 203-213; Elle, E., Carney, R., Reproductive assurance varies with flower size in Collinsia parviflora (Scrophulariaceae) (2003) American Journal of Botany, 90, pp. 888-896; Ellis, A.G., Johnson, S.D., The evolution of floral variation without pollinator shifts in Gorteria diffusa (Asteraceae) (2009) American Journal of Botany, 96, pp. 793-801; Espìndola, A., Pellissier, L., Alvarez, N., Variation in the proportion of flore visitors of Arum maculatum along its distributional range in relation with community-based climatic niche analyses (2011) Oikos, 120, pp. 728-734; Faegri, K., Van Der Pijl, L., (1971) The Principles of Pollination Ecology, , Pergamon Press, Oxford; Fenster, C.B., Armbruster, W.S., Wilson, P., Dudash, M.R., Thomson, J.D., Pollination syndromes and floral specialization (2004) Annual Reviews of Ecology, Evolution and Systematics, 35, pp. 375-403; Geber, M.A., Eckhart, V.M., Experimental studies of adaptation in Clarkia xantiana. II. Fitness variation across a subspecies border (2005) Evolution, 59, pp. 521-531; Geber, M.A., Moeller, D.A., Pollinator responses to plant communities and implications for reproductive character evolution (2006) Ecology and Evolution of Flowers, pp. 102-119. , eds L.D. Harder & S.C.H. Barrett. Oxford University Press, Oxford; Gibernau, M., (1997), Odeurs et spécificité dans les mutualismes figuier pollinisateur: Le cas de Ficus carica L. et de Blastophaga psenes L. PhD thesis, University of Montpellier, MontpellierGibernau, M., Macquart, D., Przetak, G., Pollination in the genus Arum – a review (2004) Aroideana, 27, pp. 148-166; Gomez, J.M., Bosh, J., Perfectti, F., Fernández, J.D., Abdelaziz, M., Camacho, J.P.M., Spatial variation in selection on corolla shape in a generalist plant is promoted by the preference patterns of its local pollinators (2008) Proceedings of the Royal Society B, 275, pp. 2241-2249; Gomez, J.M., Abdelaziz, M., Camacho, J.P.M., Munoz-Pajares, A.J., Perfectti, F., Local adaptation and maladaptation to pollinators in a generalist geographic mosaic (2009) Ecology Letters, 12, pp. 672-682; Gould, S.J., Johnston, R.F., Geographic variation (1972) Annual Review of Ecology, Evolution, and Systematics, 3, pp. 457-498; Hentrich, H., Kaiser, R., Gottsberger, G., Floral biology and reproductive isolation by floral scent in three sympatric Aroid species in French Guyana (2010) Plant Biology, 12, pp. 587-596; Herrera, C.M., Castellanos, M.C., Medrano, M., Geographical context of floral evolution: towards an improved research programme in floral diversification (2006) Ecology and Evolution of Flowers, pp. 278-294. , eds L.D. Harder & S.C.H. Barrett) Oxford University Press, Oxford; Hodgins, K.A., Barrett, C.H., Geographic variation in floral morphology and style-morph ratios in a sexually polymorphic daffodil (2008) American Journal of Botany, 95, pp. 185-195; Ibanez, S., Dötterl, S., Anstett, M.-C., Baudino, S., Caissard, J.C., Gallet, C., Després, L., The role of volatile organic compounds, morphology and pigments of globeflowers in the attraction of their specific pollinating flies (2010) New Phytologist, 188, pp. 451-463; Ježek, J., Redescriptions of nine common palaeartic and holartic species of Psychodini End. (Diptera: Psychodidae) (1990) Acta Entomologica Musei Nationalis Pragae, 43, pp. 33-83; Ježek, J., Hájek, J., Psychodidae (Diptera) of the Orlické hory protected landscape area and neighbouring areas with descriptions of two new species from the Czech Republic (2007) Acta Entomologica Musei Nationalis Pragae, 47, pp. 237-285; Johnson, S.D., Pollinator-driven speciation in plants (2006) Ecology and Evolution of Flowers, pp. 295-310. , eds L.D. Harder & S.C.H. Barrett Oxford University Press, Oxford; Johnson, S.D., Jürgens, A., Convergent evolution of carrion and faecal scent mimicry in fly-pollinated angiosperm flowers and a stinkhorn fungus (2010) South African Journal of Botany, 76, pp. 796-807; Johnson, S.D., Steiner, K.E., Long-tongued fly pollination and evolution of floral spur length in the Disa draconis complex (Orchidaceae) (1997) Evolution, 51, pp. 45-53; Jürgens, A., Dötterl, S., Meve, U., The chemical nature of fetid floral odours in stapeliads (Apocynaceae-Asclepiadoideae-Ceropegieae) (2006) New Phytologist, 172, pp. 452-468; Kato, M., Itioka, T., Sakai, S., Momose, K., Yamane, S., Hamid, A.A., Inoue, T., Various population fluctuation patterns of light-attracted beetles in a tropical lowland dipterocarp forest in Sarawak (2000) Population Ecology, 42, pp. 97-104; Kiester, A.R., Lande, R., Schemske, D.W., Models of coevolution and speciation in plants and their pollinators (1984) The American Naturalist, 1242, pp. 220-243; Kite, G.C., The floral odour of Arum maculatum (1995) Biochemical Systematics and Ecology, 23, pp. 343-354; Kite, G.C., Hetterscheid, W.L.A., Lewis, M.J., Boyce, P.C., Ollerton, J., Cocklin, E., Diaz, A., Simmonds, M.S.J., Inflorescence odours and pollinators of Arum and Amorphophallus (Araceae) (1998) Reproductive Biology, pp. 295-315. , (eds S.J. Owens & P.J. Rudall) Royal Botanical Gardens, Kew; Knudsen, J.T., Variation in floral scent composition within and between populations of Geonoma macrostachys (Arecaceae) in the western Amazon (2002) American Journal of Botany, 89, pp. 1772-1778; Knudsen, J.T., Eriksson, R., Gershenzon, J., Ståhl, B., Diversity and distribution of floral scent (2006) The Botanical Review, 72, pp. 1-120; Lack, A.J., Diaz, A., The pollination of Arum maculatum L. – a historical review and new observations (1991) Watsonia, 18, pp. 333-342; Levin, D.A., (2000) The Origin, Expansion and Demise of Plant Species, , Oxford University Press, Oxford; Levin, D.A., Anderson, W.W., Competition for pollinators between simultaneously flowering species (1970) The American Naturalist, 104, pp. 455-467; Linz, J., Stökl, J., Urru, I., Krügel, T., Stensmyr, M.C., Hansson, B.S., Molecular phylogeny of the genus Arum (Araceae) inferred from multi-locus sequence data and AFLPs (2010) Taxon, 59, pp. 405-415; Maia, A.C.D., Dötterl, S., Kaiser, R., Silberbauer-Gottsberger, I., Teichert, H., Gibernau, M., Navarro, D.M.D.F., Gottsberger, G., The key role of 4-methyl-5-vinylthiazole in the attraction of scarab beetle pollinators: a unique olfactory floral signal shared by Annonaceae and Araceae (2012) Journal of Chemical Ecology, 38, pp. 1072-1080; Maia, A.C.D., Gibernau, M., Dötterl, S., Navarro, DM., Seifert, K., Müller, T., Schlindwein, C., The floral scent of Taccarum ulei (araceae): attraction of scarab beetle pollinators to an unusual aliphatic acyloin (2013) Phytochemistry, , http://dx.doi.org/10.1016/j.phytochem.2013.03.005, (in press); Mant, J., Peakall, R., Schiestl, F.P., Does selection on floral odor promote differentiation among populations and species of the sexually deceptive orchid genus Ophrys? (2005) Evolution, 59, pp. 1449-1463; Méndez, M., Obeso, J.R., Influencia del osmoforo en la produccion de infrutescencias en Arum italicum Miller (Araceae) (1992) Anales del Jardín Botánico de Madrid, 50, pp. 229-237; Mitchell, R.J., Flanagan, R.J., Brown, B.J., Waser, N.M., Karron, J.D., New frontiers in competition for pollination (2009) Annals of Botany, 103, pp. 1403-1413; Morgan, M.T., Selection on reproductive characters: conceptual foundations and their extension to pollinator interactions (2006) Ecology and Evolution of Flowers, pp. 25-40. , eds L.D. Harder & S.C.H. Barrett) Oxford University Press, Oxford; Nattero, J., Cocussi, A.A., Medel, R., Pollinator-mediated selection in a specialized pollination system: matches and mismatches across populations (2010) Journal of Evolutionary Biology, 23, pp. 1957-1968; Pettersson, S., Knudsen, J.T., Floral scent and nectar production in Parkia biglobosa Jacq. (Leguminosae: Mimosoideae) (2001) Botanical Journal of the Linnean Society, 135, pp. 97-106; Pichersky, E., Gershenzon, J., The formation and function of plant volatiles: perfumes for pollinator attraction and defense (2002) Plant Biology, 5, pp. 237-243; Prime, C.T., (1960) Lords and Ladies, , Harper Collins Publishers, London; Proctor, M., Leo, P., Lack, A., (1996) Natural History of Pollination, , Harper Collins Publishers, London; Raguso, R.A., Wake up and smell the roses: the ecology and evolution of floral scent (2008) Annual Review of Ecology, Evolution, and Systematics, 39, pp. 549-569; (2012) R: A language and environment for statistical computing, , http://www.R-project.org/, R Core Team R Foundation for Statistical Computing, Vienna, Austria ISBN 3-900051-07-0, URL University of Chicago Press, Chicago, IL; Renner, S.S., Rewardless flowers in the Angiosperms and the role of insect cognition in their evolution (2006) Plant-Pollinator Interactions: From Specialization to Generalization, pp. 123-144. , eds N.M. Waser & J. Ollerton University of Chicago Press, Chicago, IL; Rohacek, J., Beck-Haug, I., Dobat, K., Sphaeroceridae associated with flowering Arum maculatum (Araceae) in the vicinity of Tübingen, SW-Germany (1990) Senckenbergiana biologie, 71, pp. 259-268; Schaeffer, H.M., Ruxton, G.D., (2011) Plant-Animal Communication, , Oxford University Press, Oxford; Schiestl, F.P., Ayasse, M., Do changes in floral odor cause speciation in sexually deceptive orchids? (2002) Plant Systematics and Evolution, 234, pp. 111-119; Schiestl, F.P., Schlüter, P.M., Floral isolation, specialized pollination, and pollinator behavior in Orchids (2009) Annual Review of Entomology, 54, pp. 425-446; Schlumpberger, B.O., Raguso, R.A., Geographic variation in floral scent of Echinopsis ancistrophora (Cactaceae); evidence for constraints on hawkmoth attraction (2008) Oikos, 117, pp. 801-814; Schlumpberger, B.O., Cocussi, A.A., Moré, M., Sérsic, A.N., Raguso, R.A., Extreme variation in floral characters and its consequences for pollinator attraction among populations of an Andean cactus (2009) Annals of Botany, 103, pp. 1489-1500; Solers, C., Hossaert-McKey, M., Buatois, B., Bessière, J.-M., Schatz, B., Proffit, M., Geographic variation of floral scent in a highly specialized pollination mutualism (2011) Phytochemistry, 72, pp. 74-81; Stebbins, G.L., Adaptive radiation of reproductive characteristics in Angiosperms, I: pollination mechanisms (1970) Annual Review of Ecology and Systematics, 1, pp. 307-326; Stökl, J., Strutz, A., Dafni, A., Svatos, A., Doubsky, J., Knaden, M., Sachse, S., Stensmyr, M.C., A deceptive pollination system targeting drosophilids through olfactory mimicry of yeast (2010) Current Biology, 20, pp. 1846-1852; Stökl, J., Schlüter, P.M., Stuessy, T.F., Paulus, H.F., Assum, G., Ayasse, M., Scent variation and hybridization cause the displacement of a sexually deceptive orchid species (2008) American Journal of Botany, 95, pp. 472-481; Svensson, G.P., Pellmyr, O., Raguso, R.A., Strong conservation of floral scent composition in two allopatric yuccas (2006) Journal of Chemical Ecology, 32, pp. 2657-2665; Svensson, G.P., Pellmyr, O., Raguso, R.A., Pollinator attraction to volatiles from virgin and pollinated host flowers in a yucca/moth obligate mutualism (2011) Oikos, 120, pp. 1577-1583; Svensson, G.P., Hickman, M.O., Bartram, S., Boland, W., Pellmyr, O., Raguso, R.A., Chemistry and geographic variation of floral scent in Yucca filamentosa (Agavaceae) (2005) American Journal of Botany, 92, pp. 1624-1631; Thompson, J.N., (2005) The Geographic Mosaic of Coevolution, , University Chicago Press, Chicago, IL; Urru, I., Stensmyr, M.C., Hansson, B.S., Pollination by brood-site deception (2011) Phytochemistry, 72, pp. 1655-1666; Vaillant, F., Diptères psychodidae coprophiles et coprobiontes d'Europe (1988) Bulletin Romand d'Entomologie, 6, pp. 1-43; Valiente-Banuet, A., Molina-Freaner, F., Torres, A., del Coro Arizmendi, M., Casas, A., Geographic differentiation in the pollination system of the columnar cactus Pachycereus pecten-aboriginum (2004) American Journal of Botany, 91, pp. 850-855; Volis, S., Adaptive genetic differentiation in a predominantly self-pollinating species analyzed by transplanting into natural environment, crossbreeding and Qst-Fst test (2011) New Phytologist, 192, pp. 237-248; Waelti, M.O., Muhlemann, J.K., Widmer, A., Schiestl, F.P., Floral odour and reproductive isolation in two species of Silene (2008) Journal of Evolutionary Biology, 21, pp. 111-121; Waser, N.M., Interspecific pollen transfer and competition between co-occurring plant species (1978) Oecologia, 36, pp. 223-236; Waterman, R.J., Bidartondo, M.I., Stofberg, J., Combs, J.K., Gebauer, G., Savolainen, V., Barraclough, T.G., Pauw, A., The effects of above- and belowground mutualisms on orchid speciation and coexistence (2011) The American Naturalist, 177, pp. E54-E68; Withers, P., Roth flies. Diptera: Psychodidae (1989) Dipterist Digest, 4, pp. 1-83 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 511 | ||
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| Author |
Chartier, M.; Pélozuelo, L.; Gibernau, M. | ||||
| Title | Do floral odor profiles geographically vary with the degree of specificity for pollinators? Investigation in two sapromyophilous Arum species (Araceae) | Type | Journal Article | ||
| Year | 2011 | Publication | Annales de la Societe Entomologique de France | Abbreviated Journal | Ann. Soc. Entomol. Fr. |
| Volume | 47 | Issue | 1-2 | Pages | 71-77 |
| Keywords | Arum italicum; Arum maculatum; Floral scent; Psychodidae; Specificity | ||||
| Abstract | We compared floral odour profiles among populations of two Arum species which show different degrees of specificity for their fly pollinators. Insects were collected from inflorescences in four populations of Arum italicum and two populations of Arum maculatum. In six Arum populations, we compared inflorescences odour profiles collected by Solid Phase Micro Extraction (SPME) and analysed by gas chromatography. We confirmed that from a pollination point of view, A. italicum is an opportunist species, as it is mainly pollinated by insects of the families Psychodidae, Chironomidae and Sciaridae, whereas A. maculatum is a specialist species, as it is 90% pollinated by Psychodidae. In all populations, Arum italicum was less attractive to pollinators than Arum maculatum. Floral odour profiles of A. italicum were not geographically structured among populations, suggesting a high gene flow or adaptation to a fluctuant guild of pollinators. On the contrary, odour profiles of A. maculatum varied between the two populations studied suggesting a lower gene flow or adaptation to different local pollinator preferences. | ||||
| Address | CNRS – Ecofog (UMR 8172), BP709, F-97387 Kourou, France | ||||
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| Language | Summary Language | Original Title | |||
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| ISSN | 00379271 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 26 October 2011; Source: Scopus; Language of Original Document: English; Correspondence Address: Chartier, M.; Université Paul Sabatier, Laboratoire Evolution and Diversité Biologique (UMR 5174), Bât. 4R3-B2, F-31062 Toulouse cedex 9, France; email: chartier.marion@gmail.com | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 366 | ||
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| Author |
Chave, J.; Navarrete, D.; Almeida, S.; Alvarez, E.; Aragao, L.E.O.C.; Bonal, D.; Chatelet, P.; Silva-Espejo, J.E.; Goret, J.Y.; von Hildebrand, P.; Jimenez, E.; Patino, S.; Penuela, M.C.; Phillips, O.L.; Stevenson, P.; Malhi, Y. | ||||
| Title | Regional and seasonal patterns of litterfall in tropical South America | Type | Journal Article | ||
| Year | 2010 | Publication | Biogeosciences | Abbreviated Journal | Biogeosciences |
| Volume | 7 | Issue | 1 | Pages | 43-55 |
| Keywords | |||||
| Abstract | The production of aboveground soft tissue represents an important share of total net primary production in tropical rain forests. Here we draw from a large number of published and unpublished datasets (n=81 sites) to assess the determinants of litterfall variation across South American tropical forests. We show that across old-growth tropical rainforests, litterfall averages 8.61 +/- 1.91 Mg ha(-1) yr(-1) (mean +/- standard deviation, in dry mass units). Secondary forests have a lower annual litterfall than old-growth tropical forests with a mean of 8.01 +/- 3.41 Mg ha(-1) yr(-1). Annual litterfall shows no significant variation with total annual rainfall, either globally or within forest types. It does not vary consistently with soil type, except in the poorest soils (white sand soils), where litterfall is significantly lower than in other soil types (5.42 +/- 1.91 Mg ha(-1) yr(-1)). We also study the determinants of litterfall seasonality, and find that it does not depend on annual rainfall or on soil type. However, litterfall seasonality is significantly positively correlated with rainfall seasonality. Finally, we assess how much carbon is stored in reproductive organs relative to photosynthetic organs. Mean leaf fall is 5.74 +/- 1.83 Mg ha(-1) yr(-1) (71% of total litterfall). Mean allocation into reproductive organs is 0.69 +/- 0.40 Mg ha(-1) yr(-1) (9% of total litterfall). The investment into reproductive organs divided by leaf litterfall increases with soil fertility, suggesting that on poor soils, the allocation to photosynthetic organs is prioritized over that to reproduction. Finally, we discuss the ecological and biogeochemical implications of these results. | ||||
| Address | [Chave, J.] CNRS UPS, Lab Evolut & Divers Biol, UMR 5174, Toulouse, France, Email: chave@cict.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | COPERNICUS GESELLSCHAFT MBH | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1726-4170 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000274058100004 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 70 | ||
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| Author |
Chave, J.; Piponiot, C.; Maréchaux, I.; de Foresta, H.; Larpin, D.; Fischer, F.J.; Derroire, G.; Vincent, G.; Hérault, B. | ||||
| Title | Slow rate of secondary forest carbon accumulation in the Guianas compared with the rest of the Neotropics | Type | Journal Article | ||
| Year | 2020 | Publication | Ecological Applications | Abbreviated Journal | Ecol. Appl. |
| Volume | 30 | Issue | 1 | Pages | e02004 |
| Keywords | biomass; carbon; forest; French Guiana; regeneration; secondary forests; tropics; accumulation rate; Bayesian analysis; biomass; carbon sequestration; chronosequence; fertility; old-growth forest; pioneer species; regeneration; secondary forest; Costa Rica; French Guiana; Guyana Shield; Goupia glabra; Laetia procera; Xylopia | ||||
| Abstract | Secondary forests are a prominent component of tropical landscapes, and they constitute a major atmospheric carbon sink. Rates of carbon accumulation are usually inferred from chronosequence studies, but direct estimates of carbon accumulation based on long-term monitoring of stands are rarely reported. Recent compilations on secondary forest carbon accumulation in the Neotropics are heavily biased geographically as they do not include estimates from the Guiana Shield. We analysed the temporal trajectory of aboveground carbon accumulation and floristic composition at one 25-ha secondary forest site in French Guiana. The site was clear-cut in 1976, abandoned thereafter, and one large plot (6.25 ha) has been monitored continuously since. We used Bayesian modeling to assimilate inventory data and simulate the long-term carbon accumulation trajectory. Canopy change was monitored using two aerial lidar surveys conducted in 2009 and 2017. We compared the dynamics of this site with that of a surrounding old-growth forest. Finally, we compared our results with that from secondary forests in Costa Rica, which is one of the rare long-term monitoring programs reaching a duration comparable to our study. Twenty years after abandonment, aboveground carbon stock was 64.2 (95% credibility interval 46.4, 89.0) Mg C/ha, and this stock increased to 101.3 (78.7, 128.5) Mg C/ha 20 yr later. The time to accumulate one-half of the mean aboveground carbon stored in the nearby old-growth forest (185.6 [155.9, 200.2] Mg C/ha) was estimated at 35.0 [20.9, 55.9] yr. During the first 40 yr, the contribution of the long-lived pioneer species Xylopia nitida, Goupia glabra, and Laetia procera to the aboveground carbon stock increased continuously. Secondary forest mean-canopy height measured by lidar increased by 1.14 m in 8 yr, a canopy-height increase consistent with an aboveground carbon accumulation of 7.1 Mg C/ha (or 0.89 Mg C·ha−1·yr−1) during this period. Long-term AGC accumulation rate in Costa Rica was almost twice as fast as at our site in French Guiana. This may reflect higher fertility of Central American forest communities or a better adaptation of the forest tree community to intense and frequent disturbances. This finding may have important consequences for scaling-up carbon uptake estimates to continental scales. | ||||
| Address | INPHB, Institut National Polytechnique Félix Houphouët-Boigny, Yamoussoukro, Cote d'Ivoire | ||||
| Corporate Author | Thesis | ||||
| Publisher | Ecological Society of America | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 19395582 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 914 | ||
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| Author |
Chaves, C.L.; Blanc-Jolivet, C.; Sebbenn, A.M.; Mader, M.; Meyer-Sand, B.R.V.; Paredes-Villanueva, K.; Honorio Coronado, E.N.; Garcia-Davila, C.; Tysklind, N.; Troispoux, V.; Massot, M.; Degen, B. | ||||
| Title | Nuclear and chloroplastic SNP markers for genetic studies of timber origin for Hymenaea trees | Type | Journal Article | ||
| Year | 2019 | Publication | Conservation Genetics Resources | Abbreviated Journal | Conserv. Gen. Res. |
| Volume | 11 | Issue | 3 | Pages | 329-331 |
| Keywords | DNA fingerprints; Geographical origin; MiSeq; RADSeq | ||||
| Abstract | We developed nuclear and chloroplastic single nucleotide polymorphism (SNP) and INDEL (insertion/deletion) markers using restriction associated DNA sequencing (RADSeq) and low coverage MiSeq genome sequencing to set up a genetic tracking method of the geographical origin of Hymenaea sp. From two initial sets of 358 and 32 loci used to genotype at least 94 individuals, a final set of 75 nSNPs, 50 cpSNPs and 6 INDELs identifying significant population structure was developed. © 2018, Springer Nature B.V. | ||||
| Address | Departamento de Fitotecnia, Faculdade de Engenharia de Ilha Solteira, Universidade Estadual Paulista, Ilha Solteira, SP, Brazil | ||||
| Corporate Author | Thesis | ||||
| Publisher | Springer Netherlands | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 18777252 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 908 | ||
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