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| Author | Duplais, C.; Papon, N.; Courdavault, V. | ||||
| Title | Tracking the Origin and Evolution of Plant Metabolites | Type | Journal Article | ||
| Year | 2020 | Publication | Trends in Plant Science | Abbreviated Journal | Trends Plant Sci. |
| Volume | 25 | Issue | 12 | Pages | 1182-1184 |
Keywords  |
enzyme evolution; iridoids; Lamiaceae; nepetalactone; plant metabolites | ||||
| Abstract | Iridoids are monoterpenes that are produced by various plants as chemical defense molecules. Lichman et al. recently described the timeline of molecular events that underpin the re-emergence of iridoid biosynthesis in an independent lineage of aromatic plants (catnip). This study represents a benchmark for studying enzyme and metabolite evolution in different clades across the tree of life. © 2020 Elsevier Ltd | ||||
| Address | Biomolécules et Biotechnologies Végétales (BBV) EA 2106, Université de Tours, Tours, France | ||||
| Corporate Author | Thesis | ||||
| Publisher | Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 13601385 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 937 | ||
| Permanent link to this record | |||||
| Author | Céréghino, R.; Corbara, B.; Leroy, C.; Carrias, J.-F. | ||||
| Title | Ecological determinants of community structure across the trophic levels of freshwater food webs: a test using bromeliad phytotelmata | Type | Journal Article | ||
| Year | 2020 | Publication | Hydrobiologia | Abbreviated Journal | Hydrobiologia |
| Volume | 847 | Issue | 2 | Pages | 391-402 |
| Keywords |
Environmental filtering; Functional group; Neotropical; Niche; Trophic interactions; alga; assembly rule; bacterium; community structure; ecological modeling; environmental conditions; food web; freshwater ecosystem; functional group; Neotropic Ecozone; niche; protozoan; taxonomy; trophic interaction; trophic level; algae; Invertebrata; Protozoa | ||||
| Abstract | Understanding the relative importance of habitat and biotic drivers on community assembly across food web components is an important step towards predicting the consequences of environmental changes. Because documenting entire food webs is often impractical, this question has been only partially investigated. Here, we partitioned variation in species assemblages of the major components of tank bromeliad food webs (bacteria, algae, protozoans, detritivorous and predatory invertebrates) into habitat and biotic determinants and examined the influence of habitat variables and predator or prey abundance on all taxonomic assemblages. Ecological determinism of assemblage structure ranged from weak in bacteria (< 10% of the explained variance) to strong in predatory invertebrates (90%). Habitat features and canopy openness significantly influenced species assemblages; however, prey or predator density had far and away the most significant structuring effects. If biotic forces are at least as important as the abiotic forces while the importance of stochasticity declines towards upper trophic levels, then trophic levels could respond differently to natural or anthropogenic disturbance and to shifts in species distributions. The effects of such differential responses on food web reconfiguration, however, remain to be elucidated. © 2019, Springer Nature Switzerland AG. | ||||
| Address | UMR EcoFoG (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), Kourou, 97310, France | ||||
| 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 | 00188158 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 996 | ||
| Permanent link to this record | |||||
| Author | Hartke, J.; Sprenger, P.P.; Sahm, J.; Winterberg, H.; Orivel, J.; Baur, H.; Beuerle, T.; Schmitt, T.; Feldmeyer, B.; Menzel, F. | ||||
| Title | Cuticular hydrocarbons as potential mediators of cryptic species divergence in a mutualistic ant association | Type | Journal Article | ||
| Year | 2019 | Publication | Ecology and Evolution | Abbreviated Journal | |
| Volume | 9 | Issue | 16 | Pages | 9160-9176 |
| Keywords |
environmental association; integrative taxonomy; niche differentiation; population structure; sexual selection; speciation | ||||
| Abstract | Upon advances in sequencing techniques, more and more morphologically identical organisms are identified as cryptic species. Often, mutualistic interactions are proposed as drivers of diversification. Species of the neotropical parabiotic ant association between Crematogaster levior and Camponotus femoratus are known for highly diverse cuticular hydrocarbon (CHC) profiles, which in insects serve as desiccation barrier but also as communication cues. In the present study, we investigated the association of the ants’ CHC profiles with genotypes and morphological traits, and discovered cryptic species pairs in both genera. To assess putative niche differentiation between the cryptic species, we conducted an environmental association study that included various climate variables, canopy cover, and mutualistic plant species. Although mostly sympatric, the two Camponotus species seem to prefer different climate niches. However in the two Crematogaster species, we could not detect any differences in niche preference. The strong differentiation in the CHC profiles may thus suggest a possible role during speciation itself either by inducing assortative mating or by reinforcing sexual selection after the speciation event. We did not detect any further niche differences in the environmental parameters tested. Thus, it remains open how the cryptic species avoid competitive exclusion, with scope for further investigations. © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. | ||||
| Address | Department of Evolutionary Animal Ecology, University of Bayreuth, Bayreuth, Germany | ||||
| Corporate Author | Thesis | ||||
| Publisher | John Wiley and Sons Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 20457758 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 2 September 2019; Correspondence Address: Hartke, J.; Senckenberg Biodiversity and Climate Research CentreGermany; email: Juliane.Hartke@senckenberg.de; Funding details: Leibniz-Gemeinschaft; Funding details: Agence Nationale de la Recherche, Not Available; Funding details: Deutsche Forschungsgemeinschaft, DFG, ME 3842/5‐1; Funding text 1: We thank Philippe Cerdan and Aurelie Dourdain for research permissions in the Hydreco Lab Petit Saut and the Paracou Research Station, respectively. Similarly, we thank Patrick Châtelet, Philippe Gaucher, and Dorothée Deslignes for permission to sample in the Les Nouragues Reserve. Further on, we thank Heike Stypa for supporting us in preparing the chemical samples. We thank Aidin Niamir for his helpful advice regarding climate data analysis. Financial support for this study was provided by the German Science Foundation (DFG) as a grant to Barbara Feldmeyer (FE 1333/7‐1), Thomas Schmitt (SCHM 2645/7‐1), and Florian Menzel (ME 3842/5‐1) and a grant managed by the French Agence Nationale de la Recherche (CEBA, ref. ANR‐10‐LABX‐25‐01) to Jérôme Orivel. The publication of this article was funded by the Open Access Fund of the Leibniz Association. 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(2018) Annual Review of Ecology Evolution and Systematics, 63, pp. 31-45; Ströher, P.R., Li, C., Pie, M.R., Exon-primed intron-crossing (EPIC) markers as a tool for ant phylogeography (2013) Revista Brasileira de Entomologia, 57, pp. 427-430. , https://doi.org/10.1590/S0085-56262013005000039; Struck, T.H., Feder, J.L., Bendiksby, M., Birkeland, S., Cerca, J., Gusarov, V.I., Dimitrov, D., Finding evolutionary processes hidden in cryptic species (2018) Trends in Ecology & Evolution, 33, pp. 153-163. , https://doi.org/10.1016/j.tree.2017.11.007; Tajima, F., Statistical method for testing the neutral mutation hypothesis by DNA polymorphism (1989) Genetics, 123, pp. 585-595; Tamura, K., Nei, M., Estimation of the number of nucleotide substitutions in the control region of mitochondrial DNA in humans and chimpanzees (1993) Molecular Biology and Evolution, 10, pp. 512-526; Thibert-Plante, X., Gavrilets, S., Evolution of mate choice and the so-called magic traits in ecological speciation (2013) Ecology Letters, 16, pp. 1004-1013. , https://doi.org/10.1111/ele.12131; Thomas, M.L., Simmons, L.W., Sexual dimorphism in cuticular hydrocarbons of the Australian field cricket Teleogryllus oceanicus (Orthoptera: Gryllidae) (2008) Journal of Insect Physiology, 54, pp. 1081-1089. , https://doi.org/10.1016/j.jinsphys.2008.04.012; Thompson, J.D., Higgins, D.G., Gibson, T.J., CLUSTAL W: Improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice (1994) Nucleic Acids Research, 22, pp. 4673-4680. , https://doi.org/10.1093/nar/22.22.4673; Thompson, J.N., Schwind, C., Guimarães, P.R., Friberg, M., Diversification through multitrait evolution in a coevolving interaction (2013) Proceedings of the National Academy of Sciences of the United States of America, 110, pp. 11487-11492. , https://doi.org/10.1073/pnas.1307451110; Türke, M., Fiala, B., Linsenmair, K.E., Feldhaar, H., Estimation of dispersal distances of the obligately plant-associated ant Crematogaster decamera (2010) Ecological Entomology, 35, pp. 662-671. , https://doi.org/10.1111/j.1365-2311.2010.01222.x; van Wilgenburg, E., Symonds, M.R.E., Elgar, M.A., Evolution of cuticular hydrocarbon diversity in ants (2011) Journal of Evolutionary Biology, 24, pp. 1188-1198. , https://doi.org/10.1111/j.1420-9101.2011.02248.x; van Zweden, J.S., d'Ettorre, P., Nestmate recognition in social insects and the role of hydrocarbons (2010) Insect hydrocarbons: Biology, biochemistry, and chemical ecology, pp. 222-243. , G. J. Blomquist, A.-G. Bagnères, (Eds.),, New York, NY, Cambridge University Press; Vantaux, A., Dejean, A., Dor, A., Orivel, J., Parasitism versus mutualism in the ant-garden parabiosis between Camponotus femoratus and Crematogaster levior (2007) Insectes Sociaux, 54, pp. 95-99. , https://doi.org/10.1007/s00040-007-0914-0; Violle, C., Nemergut, D.R., Pu, Z., Jiang, L., Phylogenetic limiting similarity and competitive exclusion (2011) Ecology Letters, 14, pp. 782-787. , https://doi.org/10.1111/j.1461-0248.2011.01644.x; Vodă, R., Dapporto, L., Dincă, V., Vila, R., Why do cryptic species tend not to co-occur? A case study on two cryptic pairs of butterflies (2015) PLoS ONE, 10. , https://doi.org/10.1371/journal.pone.0117802; Wickham, H., (2016) ggplot2: Elegant graphics for data analysis, , 2nd ed., New York, NY, Springer-Verlag; Wolak, M.E., Fairbairn, D.J., Paulsen, Y.R., Guidelines for estimating repeatability (2012) Methods in Ecology and Evolution, 3, pp. 129-137. , https://doi.org/10.1111/j.2041-210X.2011.00125.x | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 881 | ||
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| Author | Yamamoto, H.; Almeras, T. | ||||
| Title | A mathematical verification of the reinforced-matrix hypothesis using the Mori-Tanaka theory | Type | Journal Article | ||
| Year | 2007 | Publication | Journal of Wood Science | Abbreviated Journal | J. Wood Sci. |
| Volume | 53 | Issue | 6 | Pages | 505-509 |
| Keywords |
Engineering | ||||
| Abstract | This article presents a theoretical verification of the reinforced-matrix hypothesis derived from tensor equations, σ W = σ f + σ m and ε W = ε f = ε m (Wood Sci Technol 32:171–182, 1998; Wood Sci Technol 33:311–325, 1999; J Biomech Eng 124:432–440, 2002), using classical Mori-Tanaka theory on the micromechanics of fiber-reinforced materials (Acta Metall 21:571–574, 1973; Micromechanics — dislcation and inclusions (in Japanese), pp 141–147, 1976). The Mori-Tanaka theory was applied to a small fragment of the cell wall undergoing changes in its physical state, such as those arising from sorption of moisture, maturation of wall components, or action of an external force, to obtain ⟨σ A⟩D = ϕ·⟨σ F⟩I + (1−ϕ)·⟨σ M⟩D−I. When the constitutive equation of each constituent material was applied to the equation ⟨σ A⟩D = ϕ·⟨σ F⟩I + (1−ϕ)·⟨σ M⟩D−I, the equations σ W = σ f + σ m and ε W = ε f = ε m were derived to lend support to the concept that two main phases, the reinforcing cellulose microfibril and the lignin-hemicellulose matrix, coexist in the same domain. The constitutive equations for the cell wall fragment were obtained without recourse to additional parameters such as Eshelby’s tensor S and Hill’s averaged concentration tensors AF and AM. In our previous articles, the coexistence of two main phases and σ W = σ f + σ m and ε W = ε f =ε m had been taken as our starting point to formulate the behavior of wood fiber with multilayered cell walls. The present article provides a rational explanation for both concepts. | ||||
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| Publisher | Springer Japan | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1435-0211 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 215 | ||
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| Author | Haettenschwiler, S.; Coq, S.; Barantal, S.; Handa, I.T. | ||||
| Title | Leaf traits and decomposition in tropical rainforests: revisiting some commonly held views and towards a new hypothesis | Type | Journal Article | ||
| Year | 2011 | Publication | New Phytologist | Abbreviated Journal | New Phytol. |
| Volume | 189 | Issue | 4 | Pages | 950-965 |
| Keywords |
energy starvation; French Guiana; litter quality; mycorrhizas; nutrient cycling; nutrient limitation; phosphorus; soil fauna | ||||
| Abstract | Proper estimates of decomposition are essential for tropical forests, given their key role in the global carbon (C) cycle. However, the current paradigm for litter decomposition is insufficient to account for recent observations and may limit model predictions for highly diverse tropical ecosystems. In light of recent findings from a nutrient-poor Amazonian rainforest, we revisit the commonly held views that: litter traits are a mere legacy of live leaf traits; nitrogen (N) and lignin are the key litter traits controlling decomposition; and favourable climatic conditions result in rapid decomposition in tropical forests. Substantial interspecific variation in litter phosphorus (P) was found to be unrelated to variation in green leaves. Litter nutrients explained no variation in decomposition, which instead was controlled primarily by nonlignin litter C compounds at low concentrations with important soil fauna effects. Despite near-optimal climatic conditions, tropical litter decomposition proceeded more slowly than in a climatically less favourable temperate forest. We suggest that slow decomposition in the studied rainforest results from a syndrome of poor litter C quality beyond a simple lignin control, enforcing energy starvation of decomposers. We hypothesize that the litter trait syndrome in nutrient-poor tropical rainforests may have evolved to increase plant access to limiting nutrients via mycorrhizal associations. | ||||
| Address | [Haettenschwiler, Stephan; Coq, Sylvain; Barantal, Sandra; Handa, Ira Tanya] CNRS, CEFE, F-34293 Montpellier 5, France, Email: stephan.hattenschwiler@cefe.cnrs.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | Wiley-Blackwell | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0028-646x | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000286940500009 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 296 | ||
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| Author | Dézerald, O.; Srivastava, D.S.; Céréghino, R.; Carrias, J.-F.; Corbara, B.; Farjalla, V.F.; Leroy, C.; Marino, N.A.C.; Piccoli, G.C.O.; Richardson, B.A.; Richardson, M.J.; Romero, G.Q.; González, A.L. | ||||
| Title | Functional traits and environmental conditions predict community isotopic niches and energy pathways across spatial scales | Type | Journal Article | ||
| Year | 2018 | Publication | Functional Ecology | Abbreviated Journal | |
| Volume | 32 | Issue | 10 | Pages | 2423-2434 |
| Keywords |
energy pathways; environmental heterogeneity; food webs; functional biogeography; functional diversity; isotopic niche; metacommunity; trophic structure | ||||
| Abstract | Despite ongoing research in food web ecology and functional biogeography, the links between food web structure, functional traits and environmental conditions across spatial scales remain poorly understood. Trophic niches, defined as the amount of energy and elemental space occupied by species and food webs, may help bridge this divide. Here, we ask how the functional traits of species, the environmental conditions of habitats and the spatial scale of analysis jointly determine the characteristics of trophic niches. We used isotopic niches as a proxy of trophic niches, and conducted analyses at spatial scales ranging from local food webs and metacommunities to geographically distant sites. We sampled aquatic macroinvertebrates from 104 tank bromeliads distributed across five sites from Central to South America and compiled the macroinvertebrates’ functional traits and stable isotope values (δ15N and δ13C). We assessed how isotopic niches within each bromeliad were influenced by the functional trait composition of their associated invertebrates and environmental conditions (i.e., habitat size, canopy cover [CC] and detrital concentration [DC]). We then evaluated whether the diet of dominant predators and, consequently, energy pathways within food webs reflected functional and environmental changes among bromeliads across sites. At last, we determined the extent to which the isotopic niches of macroinvertebrates within each bromeliad contributed to the metacommunity isotopic niches within each site and compared these metacommunity-level niches over biogeographic scales. At the bromeliad level, isotopic niches increased with the functional richness of species in the food web and the DC in the bromeliad. The diet of top predators tracked shifts in prey biomass along gradients of CC and DC. Bromeliads that grew under heterogeneous CC displayed less trophic redundancy and therefore combined to form larger metacommunity isotopic niches. At last, the size of metacommunity niches depended on within-site heterogeneity in CC. Our results suggest that the trophic niches occupied by food webs can predictably scale from local food webs to metacommunities to biogeographic regions. This scaling process is determined by both the functional traits of species and heterogeneity in environmental conditions. A plain language summary is available for this article. © 2018 The Authors. Functional Ecology © 2018 British Ecological Society | ||||
| Address | Luquillo LTER, Institute for Tropical Ecosystem Studies, College of Natural Sciences, University of Puerto Rico at Rio Piedras, San Juan, Puerto Rico | ||||
| 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 | |||
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| Notes | Export Date: 22 October 2018 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 828 | ||
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| Author | Barantal, S.; Schimann, H.; Fromin, N.; Hattenschwiler, S. | ||||
| Title | Nutrient and Carbon Limitation on Decomposition in an Amazonian Moist Forest | Type | Journal Article | ||
| Year | 2012 | Publication | Ecosystems | Abbreviated Journal | Ecosystems |
| Volume | 15 | Issue | 7 | Pages | 1039-1052 |
| Keywords |
energy limitation; labile carbon; litter quality; nitrogen; phosphorus; priming effect; soil fauna; tropical forest | ||||
| Abstract | Tropical forests determine global biogeochemical cycles to a large extent, but control factors for key ecosystem processes such as decomposition remain poorly understood. With a full-factorial C (cellulose), N (urea), and P (phosphate) fertilization experiment, we tested the relative importance of C and nutrient limitation on litter decomposition in a mature lowland moist forest of French Guiana. Despite the previously demonstrated litter C quality control over decomposition and the very low soil P content (0. 1 mg g -1 of soil) at our study site, fertilization with C or P alone did not increase the decomposition of a wide range of litter types (N:P ratios between 20 and 80). Nitrogen fertilization alone also had no effect on decomposition. However, the combined fertilization with N and P resulted in up to 33. 5% more initial litter mass lost, with an increasing effect with wider litter N:P ratios. Soil fauna strongly stimulated litter mass loss and enhanced nutrient fertilization effects. Moreover, nutrient effects on decomposition increased with additional C fertilization in the presence of fauna. Our results suggest that increased N availability is required for a positive P effect on decomposition in the studied P-poor tropical forest. Further stimulation of decomposition by C amendment through priming indicates energy limitation of decomposers that is co-determined by nutrient availability. The demonstrated intricate control of the key resources C, N, and P on decomposition calls for an intensified research effort on multiple resource limitation on key processes in tropical forests and how they change under multiple human impacts. © 2012 Springer Science+Business Media, LLC. | ||||
| Address | UMR Ecologie des Forêts de Guyane (ECOFOG), INRA, 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 | 14329840 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 2 November 2012; Source: Scopus; Coden: Ecosf; doi: 10.1007/s10021-012-9564-9; Language of Original Document: English; Correspondence Address: Schimann, H.; UMR Ecologie des Forêts de Guyane (ECOFOG), INRA, Kourou, French Guiana; email: heidy.schimann@ecofog.gf | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 442 | ||
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| Author | Woolfit, M.; Iturbe-Ormaetxe, I.; Brownlie, J.C.; Walker, T.; Riegler, M.; Seleznev, A.; Popovici, J.; Rancès, E.; Wee, B.A.; Pavlides, J.; Sullivan, M.J.; Beatson, S.A.; Lane, A.; Sidhu, M.; McMeniman, C.J.; McGraw, E.A.; O'Neill, S.L. | ||||
| Title | Genomic evolution of the pathogenic Wolbachia strain, wMelPop | Type | Journal Article | ||
| Year | 2013 | Publication | Genome Biology and Evolution | Abbreviated Journal | Genome Biolog. Evol. |
| Volume | 5 | Issue | 11 | Pages | 2189-2204 |
| Keywords |
Endosymbiont; Evolution; Genomics; Wolbachia | ||||
| Abstract | Most strains of the widespread endosymbiotic bacterium Wolbachia pipientis are benign or behave as reproductive parasites. The pathogenic strain wMelPop is a striking exception, however: it overreplicates in its insect hosts and causes severe life shortening. The mechanism of this pathogenesis is currently unknown. We have sequenced the genomes of three variants of wMelPop and of the closely related nonpathogenic strain wMelCS. We show that the genomes of wMelCS and wMelPop appear to be identical in the nonrepeat regions of the genome and differ detectably only by the triplication of a 19-kb region that is unlikely to be associated with life shortening, demonstrating that dramatic differences in the host phenotype caused by this endosymbiont may be the result of only minor genetic changes. We also compare the genomes of the original wMelPop strain from Drosophila melanogaster and two sequentialderivatives, wMelPop-CLA and wMelPop-PGYP. To develop wMelPop as a novel biocontrol agent, it was first transinfected into and passaged in mosquito cell lines for approximately 3.5 years, generating wMelPop-CLA. This cell line-passaged strain was then transinfected into Aedesaegypti mosquitoes, creating wMelPop-PGYP,which wassequenced after 4yearsin the insecthost. We observe a rapid burst of genomic changes during cell line passaging, but no further mutations were detected after transinfection into mosquitoes, indicating either that host preadaptation had occurred in cell lines, that cell lines are a more selectively permissive environment than animal hosts, or both. Our results provide valuable data on the rates of genomic and phenotypic change in Wolbachia associated with host shifts over short time scales. © The Author(s) 2013. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. | ||||
| Address | Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia | ||||
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| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 17596653 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 9 February 2014; Source: Scopus; Language of Original Document: English; Correspondence Address: O'Neill, S.L.; School of Biological Sciences, Monash University, Clayton, VIC, Australia; email: scott.oneill@monash.edu; Funding Details: NIH, National Institutes of Health | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 527 | ||
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| Author | Bleron, L.; Duchanois, G.; Thibaut, B. | ||||
| Title | Characteristic properties of embedding strength for the nailing of the gonfolio rose (Qualea rosea Aubl.) | Type | Journal Article | ||
| Year | 2008 | Publication | Holzforschung | Abbreviated Journal | Holzforschung |
| Volume | 62 | Issue | 1 | Pages | 86-90 |
| Keywords |
embedding strength; Eurocode V; nail | ||||
| Abstract | Experimental results are presented with single nail joints of gonfolo rose which were loaded at different grain angles and compared to results obtained by Eurocode V. A wide range of embedding strength tests was conducted. The embedding behaviour across the grain was also investigated with a specific test apparatus. The results were analysed and modelled in terms of strength. Initial loading and unloading stiffness of the timber have been taken into account. The embedment strength of the nails varied according to the angle between the direction of loading and that to the grain. This work is part of a larger research project to establish a computer program for the prediction of stiffness and limit strengths of all timber-to-timber and timber-to-steel joints. | ||||
| Address | [Bleron, Laurent] LABOMAP ENSAM, F-71250 Poret De Paris, Cluny, France, Email: laurent.bleron@cluny.ensam.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | WALTER DE GRUYTER & CO | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0018-3830 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000252041400013 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 144 | ||
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| Author | Staudt, K.; Serafimovich, A.; Siebicke, L.; Pyles, R.D.; Falge, E. | ||||
| Title | Vertical structure of evapotranspiration at a forest site (a case study) | Type | Journal Article | ||
| Year | 2011 | Publication | Agricultural and Forest Meteorology | Abbreviated Journal | Agric. For. Meterol. |
| Volume | 151 | Issue | 6 | Pages | 709-729 |
| Keywords |
Eddy-covariance; Evapotranspiration; In-canopy profiles; Model; Picea abies L.; Sap flux; coniferous forest; ecosystem modeling; eddy covariance; evapotranspiration; forest canopy; sap flow; Fichtelgebirge; Germany; Picea abies | ||||
| Abstract | The components of ecosystem evapotranspiration of a Norway spruce forest (Picea abies L.) as well as the vertical structure of canopy evapotranspiration were analyzed with a combination of measurements and models for a case study of 5 days in September 2007. Eddy-covariance and sap flux measurements were performed at several heights within the canopy at the FLUXNET site Waldstein-Weidenbrunnen (DE-Bay) in the Fichtelgebirge mountains in Germany. Within and above canopy fluxes were simulated with two stand-scale models, the 1D multilayer model ACASA that includes a third-order turbulence closure and the 3D model STANDFLUX. The soil and understory evapotranspiration captured with the eddy-covariance system in the trunk space constituted 10% of ecosystem evapotranspiration measured with the eddy-covariance system above the canopy. A comparison of transpiration measured with the sap flux technique and inferred from below and above canopy eddy-covariance systems revealed higher estimates from eddy-covariance measurements than for sap flux measurements. The relative influences of possible sources of this mismatch, such as the assumption of negligible contribution of evaporation from intercepted water, and differences between the eddy-covariance flux footprint and the area used for scaling sap flux measurements, were discussed. Ecosystem evapotranspiration as well as canopy transpiration simulated with the two models captured the dynamics of the measurements well, but slightly underestimated eddy-covariance values. Profile measurements and models also gave us the chance to assess in-canopy profiles of canopy evapotranspiration and the contributions of in-canopy layers. For daytime and a coupled or partly coupled canopy, mean simulated profiles of both models agreed well with eddy-covariance measurements, with a similar performance of the ACASA and the STANDFLUX model. Both models underestimated profiles for nighttime and decoupled conditions. During daytime, the upper half of the canopy contributed approximately 80% to canopy evapotranspiration, whereas during nighttime the contribution shifted to lower parts of the canopy. © 2010 Elsevier B.V. | ||||
| Address | Max Planck Institute for Chemistry, Biogeochemistry Department, Joh.-J.-Becherweg 27, 55128 Mainz, Germany | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 01681923 (Issn) | ISBN | Medium | ||
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| Notes | Cited By (since 1996): 3; Export Date: 21 October 2011; Source: Scopus; Coden: Afmee; doi: 10.1016/j.agrformet.2010.10.009; Language of Original Document: English; Correspondence Address: Staudt, K.; University of Bayreuth, Department of Micrometeorology, 95440 Bayreuth, Germany; email: katharina.staudt@uni-bayreuth.de | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 349 | ||
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