Relevant bibliographies by topics / Limicoli

Academic literature on the topic 'Limicoli'

Author: Grafiati
Published: 11 March 2023

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Journal articles on the topic "Limicoli"

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Saporetti, Fabio. "Il ruolo delle zone umide della Regione Lombardia durante la migrazione dei limicoli: un’analisi per il genere Tringa ricavata dal portale www.ornitho.it." Rivista Italiana di Ornitologia 87, no. 2 (June 21, 2018): 15–28. http://dx.doi.org/10.4081/rio.2017.369.

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In Italy, the launch of the online portal at www.ornitho.it in 2009 has played a key role in advancing our knowledge about the abundance, geographical distribution and phenology of birds, and has greatly improved everyday ornithological issues. Indeed, the extensive participation by many observers has provided an opportunity to obtain new insight into the phenology of many species of migratory birds, such as Tringa sp. In this paper, I have analysed the data gathered between 2010 and 2014 on the genus Tringa in Lombardy, amounting to a total of 5,590 validated records for spring and autumn migrations. The analysis revealed that the rice-farming area of S-W Lombardy – which covers more than 90,000 hectares located mainly in the province of Pavia – represents an invaluable habitat during the spring migration by supporting the bulk of migrating waders. Other man-made habitats, such as restored sand and gravel pits and water-collection tanks, are of similar importance for the diversity of the wader community, but, together with the few natural wetlands, support much lower numbers of individuals. The wood sandpiper is the most abundant species, with groups reaching 600 individuals, followed by the spotted redshank and the greenshank. The green sandpiper is the most common and widespread species, with a low number of individuals reaching the highest altitudes (above 2,600 m a.s.l. in the province of Sondrio) during the autumn migration. The common redshank is relatively rare, generally distributed around 200 m a.s.l. in the provinces of Pavia and Milan, while the marsh sandpiper is definitely rare, with only 68 records in the five-year period analysed.
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Snaidr, J., C. Beimfohr, C. Levantesi, S. Rossetti, J. van der Waarde, B. Geurkink, D. Eikelboom, M. Lemaitre, and V. Tandoi. "Phylogenetic analysis and in situ identification of “Nostocoida limicola”-like filamentous bacteria in activated sludge from industrial wastewater treatment plants." Water Science and Technology 46, no. 1-2 (July 1, 2002): 99–104. http://dx.doi.org/10.2166/wst.2002.0462.

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The diversity of filamentous bacteria present in industrial wastewater treatment plants was analysed by a combination of classical and molecular-biological approaches. Many unknown filamentous bacteria were observed in about 80 screened activated sludge samples from different industries with sometimes severe bulking sludge problems. A special focus was paid to filaments which resembled “Nostocoida limicola”, a filamentous bacterium which was found to be present in many WWTPs. These filamentous bacteria are hardly cultivable and only one strain was obtained and maintained in co-culture with a yeast. The 16S rRNA sequences of several other “Nostocoida limicola”-like filamentous bacteria from different sludge samples were obtained by micromanipulation and different molecular-biological methods. The sequences were phylogenetically analyzed and specific molecular probes were developed and applied. The results clearly demonstrate that “Nostocoida limicola”-like filaments from industrial WWTPs are different from all other “Nostocoida limicola” types investigated so far. Our strains are affiliated to the alpha-subclass of Proteobacteria.
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Wiggers, Rink, Reinhard Gerecke, and Lucas André Blattner. "New insights into the distribution, ecology, and systematic position of the rare water mite Rutripalpus limicola Sokolow, 1934 (Acari: Rutripalpidae)." Acarologia 63, no. 1 (January 25, 2023): 106–21. http://dx.doi.org/10.24349/du6j-ygm2.

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The water mite Rutripalpus limicola Sokolow, 1934, can be considered exceptionally rare. It shows a scattered distribution range and, until recently, was known from six sites across Europe only. This strictly spring-dwelling species has a highly localised distribution, presumably due to its specific ecological requirements. We present the first records of R. limicola in the Netherlands and review the current state of knowledge on its distribution and biology. In addition to the previously existing morphology-based investigations, we provide a phylogenetic placement based on 28S rRNA gene data and shed light on the controversial systematic position of R. limicola: In contrast to the previously hypothesised Lebertioidea-relatedness of the isolated, monotypic family Rutripalpidae, our results reveal a putative Hydryphantoidea association. Moreover, we discuss the host-parasite association of R. limicola larvae and the dipteran family Ptychopteridae. Combined with additional information derived from the new records from the Netherlands, we contribute to a better understanding of this elusive species' biology and phylogenetic position.
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Seviour, R. J., J. R. Liu, E. M. Seviour, C. A. McKenzie, L. L. Blackall, and C. P. Saint. "The “Nostocoida limicola” story: resolving the phylogeny of this morphotype responsible for bulking in activated sludge." Water Science and Technology 46, no. 1-2 (July 1, 2002): 105–10. http://dx.doi.org/10.2166/wst.2002.0463.

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On the basis of 16S rRNA sequence analyses of several isolates of “Nostocoida limicola” from activated sludge plants in Australia and other countries, it is clear that “N. limicola” I, II and III are not three morphological variants of a single bacterium but at least three phylogenetically different bacteria. Data show that “N. limicola” I are members of at least two genera in the low mol% G+C Gram-positive bacteria, while some isolates of “N.limicola” II belong to the high mol% G+C Gram positive bacteria, and “N.limicola” III is a member of the Planctomycetales. Design and application of 16S rRNA targeted probes for each to biomass samples suggests that their phylogeny is more diverse than pure culture studies would suggest.
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Seviour, E. M., K. Eales, L. Izzard, M. Beer, E. L. Carr, and R. J. Seviour. "The in situ physiology of Nostocoida limicola II, a filamentous bacterial morphotype in bulking activated sludge, using fluorescence in situ hybridization and microautoradiography." Water Science and Technology 54, no. 1 (July 1, 2006): 47–53. http://dx.doi.org/10.2166/wst.2006.370.

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The in situ physiology of the actinobacterial bulking and foaming filamentous bacterium “Nostocoida limicola” II was studied by fluorescence in situ hybridization/microautoradiography. Substrate assimilation patterns of pure cultures of this bacterium were different to those seen in activated sludge biomass samples. There was no evidence to suggest that “N. limicola” II preferred hydrophobic substrates, but evidence was produced to support the view that it is metabolically active under anaerobic conditions in activated sludge.
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McKenzie, C. M., E. M. Seviour, P. Schumann, A. M. Maszenan, J. R. Liu, R. I. Webb, P. Monis, C. P. Saint, U. Steiner, and R. J. Seviour. "Isolates of ‘Candidatus Nostocoida limicola’ Blackall et al. 2000 should be described as three novel species of the genus Tetrasphaera, as Tetrasphaera jenkinsii sp. nov., Tetrasphaera vanveenii sp. nov. and Tetrasphaera veronensis sp. nov." International Journal of Systematic and Evolutionary Microbiology 56, no. 10 (October 1, 2006): 2279–90. http://dx.doi.org/10.1099/ijs.0.63978-0.

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Despite differences in their morphologies, comparative analyses of 16S rRNA gene sequences revealed high levels of similarity (>94 %) between strains of the filamentous bacterium ‘Candidatus Nostocoida limicola’ and the cocci Tetrasphaera australiensis and Tetrasphaera japonica and the rod Tetrasphaera elongata, all isolated from activated sludge. These sequence data and their chemotaxonomic characters, including cell wall, menaquinone and lipid compositions and fingerprints of their 16S–23S rRNA intergenic regions, support the proposition that these isolates should be combined into a single genus containing six species, in the family Intrasporangiaceae in the Actinobacteria. This suggestion receives additional support from DNA–DNA hybridization data and when partial sequences of the rpoC1 gene are compared between these strains. Even though few phenotypic characterization data were obtained for these slowly growing isolates, it is proposed, on the basis of the extensive chemotaxonomic and molecular evidence presented here, that ‘Candidatus N. limicola’ strains Ben 17, Ben 18, Ben 67, Ben 68 and Ben 74 all be placed into the species Tetrasphaera jenkinsii sp. nov. (type strain Ben 74T=DSM 17519T=NCIMB 14128T), ‘Candidatus N. limicola’ strain Ben 70 into Tetrasphaera vanveenii sp. nov. (type strain Ben 70T=DSM 17518T=NCIMB 14127T) and ‘Candidatus N. limicola’ strains Ver 1 and Ver 2 into Tetrasphaera veronensis sp. nov. (type strain Ver 1T=DSM 17520T=NCIMB 14129T).
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Segin, T., S. Hnatush, O. Maslovska, and S. Komplikevych. "Synthesis of glycogen by Chlorobium limicola IMV K-8 while growth in wastewater." Visnyk of Lviv University. Biological series, no. 83 (December 25, 2020): 67–73. http://dx.doi.org/10.30970/vlubs.2020.83.08.

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Due to the high content of organic compounds, the distillery wastewater can be a good substrate for the production of glycogen during cultivation of green photosynthetic bacteria. Green photosynthetic bacteria Chlorobium limicola IMV K-8 are producers of glycogen and show exoelectrogenic properties when grown alone or inside the co-culture with heterotrophic bacteria-exoelectrogens in wastewater of various origins. In our previous works it was found that due to the phototrophic growth of C. limicola IMV K-8 in the distillery wastewater significantly reduces the content of compounds of nitrogen, sulfur, Ca2+, Mg2+ and others. The study of the patterns of glycogen synthesis by green photosynthetic bacteria during growth in such an extreme environment as the wastewater of a distillery has prospects for the development of biotechnology for the production of this polysaccharide. The aim of the study was to investigate the glycogen content in C. limicola IMV K-8 cells under different growth conditions in the wastewater of the distillery. Bacteria were grown in the wastewater of the distillery under light (phototrophic growth) and without light exposure (heterotrophic growth). Bacterial cells grown on GSB medium under light (phototrophic growth) and without light (heterotrophic growth) exposure were used as controls. Glycogen content was determined at 7, 14, 21 and 30 days of growth by the glucose oxidase method. Glucose or glycogen in the wastewater of the distillery without the introduction of bacteria was not detected. It was found that the content of glycogen in cells of C. limicola IMV K-8 grown in the wastewater of the distillery, under light exposure increased from 3.8 % to 39.8 % of cells dry weight from the seventh to third day of growth during 30 days of cultivation and was 2 times higher the glycogen content of cells on GSB medium. It is assumed that the bacteria C. limicola IMV K-8 use available in the water sources of carbon and other compounds necessary for cell metabolism along with glycogen biosynthesis and bioremediation of wastewater. During C. limicola IMV K-8 growth in the darkness there is an assimilation of organic sources of carbon (acetate, pyruvate and probably organic compounds of wastewater), which allows cells to remain viable for 30 days without additional sources of carbon, nitrogen, etc., but significant glycogen synthesis does not occur. The glycogen formed under phototrophic conditions can be further a source of carbon or a substrate for electric current generation by exoelectrogenic bacteria.
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Chen, Feilong, Yao Xu, Siqi Sun, Xiaowei Shi, Aimin Liu, and Shaoxing Chen. "Halomicroarcula amylolytica sp. nov., a novel halophilic archaeon isolated from a salt mine." International Journal of Systematic and Evolutionary Microbiology 70, no. 9 (September 1, 2020): 4978–85. http://dx.doi.org/10.1099/ijsem.0.004368.

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A halophilic archaeon named strain LR21T was isolated from a salt mine in Yunnan Province, PR China. Cells were spherical, Gram-stain-negative and motile. Strain LR21T grew at 20–50 °C (optimum, 42 °C), with 8–30 % (w/v) NaCl (optimum, 23 %) and at pH 5.5–9.5 (optimum, pH 7.5–8.5). Mg2+ was not required for growth. The major polar lipid profile comprised phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester and phosphatidylglycerol sulfate. Strain LR21T had two dissimilar 16S rRNA genes (rrnA and rrnB) and they were closely related to Halomicroarcula limicola YGHS32T, Hma. pellucida BNERC31T and Hma. salina YGHS18T with sequence similarities of 95.3–99.0, 93.0–96.2 and 93.2–95.9 %, respectively, and much lower values to other members. The rpoB′ gene sequence similarities between strain LR21T and Hma. limicola YGHS32T, Hma. pellucida BNERC31T and Hma. salina YGHS18T were 95.2, 91.2 and 91.2 % respectively. The values of average nucleotide identity (ANI) and average amino-acid identity (AAI) between strain LR21T and Hma. limicola YGHS32T, were 89.0 and 90.1 %, respectively. DNA relatedness between strains LR21T and Hma. limicola YGHS32T determined by in silico DNA–DNA hybridization was 36.8 %. Values of ANI and AAI between strain LR21T and other members in the genus Halomicroarcula were far below 95 % and the DNA–DNA relatedness values between strain LR21T and its close relatives were much lower than 70 %, which is far below the boundary for delineation of a new species prokaryote. The DNA G+C content of strain LR21T was 62.0 mol% (genome). The results suggested that strain LR21T represents a novel species of the genus Halomicroarcula , for which the name Halomicroarcula amylolytica sp. nov. is proposed. The type strain is LR21T (=CGMCC 1.13611T=NBRC 113588T).
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RADASHEVSKY, V. I., and Z. P. SELIFONOVA. "Records of Polydora cornuta and Streblospio gynobranchiata (Annelida, Spionidae) from the Black Sea." Mediterranean Marine Science 14, no. 2 (April 26, 2013): 261. http://dx.doi.org/10.12681/mms.415.

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Two spionid polychaetes, Polydora cornuta and Streblospio gynobranchiata, were identified in benthic samples collected in the northern Black Sea and adjacent waters. These species have earlier been classified as the worst invaders in soft bottom communities in the Mediterranean Sea. Polydora cornuta had been previously misidentified and widely reported from the Black Sea and the Sea of Azov as P. ciliata, P. ciliata limicola and P. limicola. Streblospio gynobranchiata is a new invader currently extending its distribution into the Mediterranean, Black and Caspian Seas. Morphology, diagnostic characters and biology of the species are discussed and the history of their records in the Mediterranean, Black and Caspian Seas and the Sea of Azov is reviewed.
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Redihough, Joanna, Isa-Rita M. Russo, Alan J. A. Stewart, Igor Malenovský, Jennifer E. Stockdale, Rosemary J. Moorhouse-Gann, Michael R. Wilson, and William O. C. Symondson. "Species Separation within, and Preliminary Phylogeny for, the Leafhopper Genus Anoscopus with Particular Reference to the Putative British Endemic Anoscopus duffieldi (Hemiptera: Cicadellidae)." Insects 11, no. 11 (November 13, 2020): 799. http://dx.doi.org/10.3390/insects11110799.

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The subfamily Aphrodinae (Hemiptera: Cicadellidae) contains ~33 species in Europe within four genera. Species in two genera in particular, Aphrodes and Anoscopus, have proved to be difficult to distinguish morphologically. Our aim was to determine the status of the putative species Anoscopus duffieldi, found only on the RSPB Nature Reserve at Dungeness, Kent, a possible rare UK endemic. DNA from samples of all seven UK Anoscopus species (plus Anoscopusalpinus from the Czech Republic) were sequenced using parts of the mitochondrial cytochrome oxidase I and 16S rRNA genes. Bayesian inference phylogenies were created. Specimens of each species clustered into monophyletic groups, except for Anoscopusalbifrons, A. duffieldi and Anoscopuslimicola. Two A. albifrons specimens grouped with A. duffieldi repeatedly with strong support, and the remaining A. albifrons clustered within A. limicola. Genetic distances suggest that A. albifrons and A. limicola are a single interbreeding population (0% divergence), while A. albifrons and A. duffieldi diverged by only 0.28%. Shared haplotypes between A. albifrons, A. limicola and A. duffieldi strongly suggest interbreeding, although misidentification may also explain these topologies. However, all A. duffieldi clustered together in the trees. A conservative approach might be to treat A. duffieldi, until other evidence is forthcoming, as a possible endemic subspecies.
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Dissertations / Theses on the topic "Limicoli"

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Roppa, Flavio. "Dinamiche di utilizzo dell'habitat in 3 specie di limicoli nella zona costiera del Friuli Venezia Giulia." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3171.

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2007/2008
Gli uccelli limicoli sono importanti indicatori su scala globale della stato delle zone umide e la perdita di tali habitat è la principale causa del decremento di molte delle loro popolazioni. Questa ricerca analizza le strategie di utilizzo dell’habitat nel Chiurlo (Numenius arquata), nella Pivieressa (Pluvialis squatarola) e nel Piovanello pancianera (Calidris alpina), che assieme rappresentano più del 90% dei limicoli svernanti in Friuli Venezia Giulia. Le popolazioni sono state monitorate mensilmente ai roost da ottobre 2005 a maggio 2008. Nello stesso periodo 17 Chiurli, 19 Pivieresse e 71 Piovanelli pancianera sono stati radiomarcati nel settore orientale dell’area di studio e monitorati per un totale di 1.762 localizzazioni (fix). Emerge una generale stabilità delle popolazioni svernanti. Il calo legato alla migrazione primaverile si verifica prima nel Chiurlo (marzo-aprile) e nel Piovanello pancianera (aprile-maggio), più tardivamente nella Pivieressa (maggio-giugno), mentre la migrazione postriproduttiva copre una finestra temporale più ampia per tutte e tre le specie. La telemetria ha fornito delle conferme agli andamenti fenologici ed evidenzia una bassa mobilità nelle tre specie, data anche l’elevata fedeltà ai siti di roost. I fix, infatti, si concentrano prevalentemente nel settore orientale dell’area di studio, dove è avvenuta la cattura degli individui. Dall’analisi degli home range, la mobilità minore si registra nel Chiurlo, poco superiore è quella della Pivieressa, mentre il Piovanello pancianera presenta gli spostamenti maggiori. La presenza di numerosi roost ed aree di foraggiamento anche nella parte centro-occidentale dell’area di studio ha suggerito come specifici settori siano utilizzati prevalentemente da differenti gruppi di individui, sia per la sosta che per l’alimentazione. Queste “unità funzionali” sono state verificate ed analizzate nel Chiurlo sulla base della risorsa trofica presente, misurata tramite campionamenti bentonici, e del comportamento di foraggiamento degli individui, ottenuto tramite videoriprese. Infine, per la Pivieressa e il Chiurlo si evidenzia una stagionalità nell’utilizzo dell’habitat, anche per singole unità funzionali. L’elevata localizzazione che caratterizza gli individui radiomarcati mette in luce l’importanza delle core area di alimentazione e di sosta. Data l’evidenza delle dinamiche spaziali e temporali legate alle diverse popolazioni e la presenza di differenti unità funzionali, quanto emerso rappresenta uno strumento importante per pianificare al meglio la conservazione di queste popolazioni, in un’ottica adattativa di gestione del territorio.
XXI Ciclo
1977
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Kanao, Tadayoshi. "Studies on the reductive tricarboxylic acid cycle from the green sulfur bacterium Chlorobium limicola." 京都大学 (Kyoto University), 2002. http://hdl.handle.net/2433/149456.

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Quenec'hdu, Sophie. "Parametres influencant la repartition spatiale des limicoles : sediment et parasites." Rennes 1, 1999. http://www.theses.fr/1999REN10008.

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Ce travail examine les relations existant entre la distribution spatiale des limicoles (aves : charadrii) en recherche de nourriture et des parametres sedimentaires d'une part et le portage parasitaire intestinal d'autre part. Dans le cadre de la theorie de l'optimal foraging, ces deux types de parametres sont censes influences les couts et les gains engendres par la recherche de nourriture. La premiere partie de ce travail s'inscrit dans un contrat europeen de recherche sur les marais sales. Apres avoir decrit les sites d'etude, la baie du mont saint michel et les traicts du croisic (france), elle montre que la repartition spatiale hivernale (etudiee a la fois par la frequentation et la densite d'oiseau) de deux especes de limicoles particulierement bien representees sur les deux sites, le becasseau variable calidris alpina et l'huitrier pie haematopus ostralegus, est influencee par la durete du sediment et sa teneur en matiere organique, ceci en rapport avec les especes de proies prelevees et la disponibilite des proies. Toutefois il apparait egalement, en accord avec de nombreuses autres etudes en france et a l'etranger, que ces caracteristiques sedimentaires n'expliquent qu'imparfaitement les preferences des limicoles pour certains sites. Des caracteres intrinseques pourraient intervenir. La deuxieme partie de ce travail examine cet aspect en s'interessant au portage parasitaire intestinal, l'espece de limicole etudiee etant l'huitrier pie. Il apparait clairement que les parasites ne sont pas distribues au hasard dans la population hote, que ce soit en hiver (etude dans l'estuaire de l'exe, grande bretagne, mer des wadden neerlandaise) ou pendant la saison de reproduction (mer des wadden neerlandaise). Les differences de portage parasitaire semblent liees a des differences de sensibilite individuelles et/ou a une selection passive de certaines proies moins parasitees. Toutefois, les etudes sur l'impact des parasites n'ont pas permis de trancher en faveur d'une des hypotheses et montrent la difficulte d'interpretation de telles etudes sur le terrain.
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Scruggs, Caroline E. "Factors affecting the growth of Nostocoida limicola II and other filamentous microorganisms in activated sludge systems." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-08292008-063138/.

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Chambon, Rémi. "Dynamiques spatio-temporelles individuelles chez une sous-population migratrice partielle d’une espèce limicole pionnière, l’avocette élégante (Recurvirostra avosetta)." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1B051.

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La description de la sélection des sites d’hivernage et de reproduction, ainsi que l’étude des déterminants et conséquences associés à l’échelle individuelle sont cruciales afin de comprendre et prédire les tendances démographiques populationnelles. Ces problématiques sont d’autant plus importantes chez les espèces limicoles, telle que l’Avocette élégante (Recurvirostra avosetta), inféodées aux zones humides littorales qui sont particulièrement menacées par les changements globaux. Les principales analyses présentées dans ce document se basent sur des histoires de captures individuelles (2099 Avocettes baguées parmi 5 sites natals majeurs du littoral Atlantique français entre 2006 et 2015). Le comportement adopté lors du premier hiver (hivernage au sein du site natal, d’un autre site du littoral Atlantique français ou d’un quartier plus lointain par migration) est influencé par certaines caractéristiques liées à l’éclosion (site et date). Ce comportement est par la suite particulièrement bien conservé sur le long terme. En période de reproduction, les oiseaux étudiés sont considérablement fidèles à leur site natal à travers les années, probablement en réponse à certaines actions de gestion des habitats de nidification dont l’efficacité a été démontrée en parallèle. Enfin, à partir du premier hiver, la survie interannuelle est relativement importante et indépendante du comportement hivernal et du site de reproduction. L’ensemble des résultats obtenus contribue alors à la compréhension de la dynamique de la sous-population étudiée et aux réflexions nécessaires à l’élaboration de plans de conservation pour l’espèce et celles présentant des exigences écologiques similaires
The description of the wintering- and breeding-ground-selection patterns and the study of the associated determinants and consequences at the individual scale are crucial to understand and predict individuals’ distribution and demographic trends at the population scale. These issues are of major importance for Shorebirds, like the Pied avocet (Recurvirostra avosetta), which typically use coastal wetlands that are threatened by global changes. The main analyses from the present document are based on individual encounter histories (2099 Avocets ringed between 2006 and 2015 among 5 of the major breeding sites from the French Atlantic littoral). The results show that natal conditions (site and date) influence the wintering behaviour adopted during the first winter (overwintering in the natal site, in a neighbouring French site, or in a foreign quarter through migration). Birds are particularly faithful to this behaviour in subsequent winters. Furthermore, ringed birds are strongly faithful to their natal site over breeding seasons. This philopatry is likely influenced by the management actions carried out in the nesting habitats of the natal sites, of which the effectiveness was additionally demonstrated. Finally, the interannual survival is relatively high from the first winter and independent of the wintering behaviour and breeding site. Overall, the results contribute to understand the dynamics of the subpopulation studied and to elaborate a management framework for the conservation of the Pied avocet and species with similar ecological requirements
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ALBOUY, DELPHINE. "Etude des proteines impliquees dans les etapes premieres de la photosynthese chez la bacterie verte sulfureuse chlorobium limicola forma thiosulfatophilum." Paris 11, 1995. http://www.theses.fr/1995PA112329.

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Au cours des premieres etapes de la photosynthese, des pigments antennes transferent l'energie d'excitation lumineuse au donneur primaire d'electrons des centres reactionnels. Une separation de charges se produit et le donneur primaire reduit alors un premier accepteur d'electrons. La paire de charge creee est stabilisee par le transfert de l'electron le long d'une chaine d'oxydoreduction, tandis que le donneur primaire est reduit par une autre chaine de transfert d'electrons. L'etude du centre reactionnel et des transporteurs de la chaine de transfert d'electrons menant a la reduction du donneur primaire du centre reactionnel a ete effectuee chez la bacterie verte sulfureuse photosynthetique chlorobium limicola forma thiosulfatophilum. La mise en evidence, la purification et la caracterisation du cytochrome c#5#5#3 ont ete realisee et ont revele qu'il s'agit d'un cytochrome tetrahemique. La mise en evidence d'un cytochrome tetrahemique a cette position de la chaine est d'un interet considerable car ce genre de cytochrome a ete essentiellement decrit chez les bacteries pourpres ; ce resultat etend donc la similarite entre ces deux types de centres reactionnels du cote donneur d'electrons. Des etudes sur membranes cytoplasmiques et in vivo ont permis de conclure que le cytochrome c#5#5#3 est tres probablement le donneur secondaire d'electrons au donneur primaire et que la chaine des transporteurs d'electrons est composee d'un cytochrome c#5#5#5 et d'un complexe de type bcl. L'analyse, par diffusion raman de resonance, de deux nouvelles preparations de centres reactionnels, qui contiennent un nombre minimum de pigments et de polypeptides, a permis de conclure que l'accepteur primaire d'electrons est un pigment de type chla et que le donneur primaire d'electrons presente une structure dimere qu'il conserve une fois oxyde. D'apres la comparaison de la photoactivite de ces deux preparations, aucune sous-unite provenant des antennes n'est indispensable a la stabilite de la photoactivite
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Degré, Delphine. "Réseau trophique de l'anse de l'Aiguillon : dynamique et structure spatiale de la macrofaune et des limicoles hivernants." La Rochelle, 2006. http://www.theses.fr/2006LAROS173.

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Le réseau trophique des vasières intertidales de l’anse de l’Aiguillon a été étudié par trois approches. La première, quantitative et corrélative, a mis en évidence la dynamique spatiale des paramètres biosédimentaires, des peuplements de mollusques (dominance de Hydrobia ulvae en abondance et de Scrobicularia plana en biomasse) et de leurs prédateurs limicoles (importance internationale du site pour les Bécasseaux variables, Barges à queue noire, Bécasseaux maubèches et Avocettes élégantes) et les corrélations entre ces différents compartiments. Sur les 37,45 km² de l’anse, les stocks de mollusques ont été estimés entre 331 et 367 tonnes de masse sèche sans cendre, la consommation des oiseaux entre 150 et 799 tonnes. An-1 et la production secondaire des bivalves entre 165 et 1026 tonnes. An-1. La capacité d’accueil du site pour les limicoles n’est donc pas limitée par la ressource trophique. La seconde approche, qualitative, a permis de caractériser des flux trophiques possibles par analyse des isotopes stables du carbone et de l’azote et confirmé le régime principalement benthivore des limicoles sur leur aire d’hivernage, comme sur leur site de mue. En troisième approche, de modélisation, l’analyse inverse a été utilisée pour estimer les flux de carbone au sein du système bentho-pélagique. Le modèle est sensible aux variations de la remise en suspension du microphytobenthos ou des détritus et de la productivité des bivalves. Enfin, les indices d’analyse de réseau ont montré un système dominé par l’activité détritique, peu complexe, peu mâture, très productif et exportateur net de qualité via la migration des limicoles dont l’activité est cependant très faible
We have studied the food-web of the Aiguillon cove with three approaches. The first quantitative one underlines the spatial dynamics of the sediment’s characteristics, the molluscs’ communities (dominance of Hydrobia ulvae in number and Scrobicularia plana in biomass) and the waders’ communities (international importance of the Aiguillon cove for Dunlins, Knots, Black tailed godwits and Avocets populations). On the 37. 45 km², we have estimated the molluscs’ stocks from 331 to 367 tons of ash free dry mass, the birds’ consumption from 150 to 799 tons. Y-1 and the secondary production of the bivalves’ populations from 165 et 1026 tons. Y-1. The carrying capacity of the wintering site for waterbirds is not limited by the molluscs’ resources. The second qualitative approach allows trophic fluxes to be characterized by carbon and nitrogen stable isotope analyses. We confirmed that waders are mainly benthivorous both on wintering grounds and moult sites. In the third modelling approach, we used the inverse analyses to estimate the carbon fluxes in the bentho-pelagic system. The model is sensitive to variations of the resuspension of microphytobenthos or detritus and for bivalves’ productivity. Network analysis indices highlight a low complexity and maturity of the system, dominated by detritic activity, but with a high production and a net high quality exportation via waders’ migration. However waders’ activity is very low
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Quaintenne, Gwenaël. "Sélection de l'habitat et des ressources trophiques chez le bécasseau maubèche Calidris canutus : distribution à l'échelle européenne et particularités des sites d'hivernage français." La Rochelle, 2010. http://www.theses.fr/2010LAROS292.

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L’objectif de cette thèse est de contribuer à étendre les connaissances sur l’écologie alimentaire d’une espèce sensible de limicole côtier, le Bécasseau maubèche Calidris canutus islandica, qui hiverne dans les baies estuariennes de l’Ouest de l’Europe où il se nourrit exclusivement de mollusques. Les modalités de sélections des proies et des sites d’hivernage du Bécasseau ont tout d’abord été étudiées à l’échelle globale de l’aire de distribution de l’espèce en Europe. Ensuite les particularités de principaux sites d’hivernage français du Bécasseau jusqu’alors jamais décrites ont été mises en évidence. Le modèle théorique de sélection des proies sous contrainte digestive est satisfaisant pour prédire le régime alimentaire de l’oiseau sur quatre de ses aires d’hivernage en Europe. Ce modèle validé a permis de tester si la répartition du Bécasseau en Europe pouvait être prédite par la théorie de la distribution libre et idéale d’un prédateur. Une grande partie de cette distribution observée a alors pu être expliquée ainsi que les déviations de prédictions attribuées aux limites imposées par la contrainte digestive et le caractère grégaire de l’espèce. En France, les Bécasseaux maubèches se concentrent sur un nombre de sites d’hivernage très limité en Manche et sur la façade Atlantique. L’étude détaillée de la disponibilité et de la qualité des stocks de proies benthiques nous a permis de mieux appréhender le régime alimentaire de l’espèce à partir d’un échantillonnage ponctuelle de trois baies des côtes de la Manche et d’un suivi inter-annuel réalisé sur deux baies des Pertuis Charentais et Bretons, première aire d’hivernage de l’espèce en France
The aim of this thesis is to contribute to extend the body of knowledge on the feeding ecology of a molluscivore shorebird, the Red Knot Calidris canutus islandica. The species winter on estuarine bays in North Western Europe where it only feed on molluscs. The modalities of prey selection and then of habitat selection have been firstly studied along a large geographical scale of five sites throughout the range of the overwintering Red Knot’s distribution in Europe. Then the particularities of overwintering French sites, never detailed so far, were studied. The establishment of previous model of diet selection under digestive constraint predicted fairly well the observed diet of Red Knot on four of its wintering area across north western Europe. This validated model allowing us to test then if the observed densities of Red Knots were consistent with prediction of the “ideal free distribution” model. We were able to explain most of observed distributions of Knots. Most of the deviations to predictions would then be linked to digestive constraint and attraction towards feeding conspecifics for this social specie. In France, Red Knots are concentrated in a very limited number of wintering sites on Channel or Atlantic coasts. The detailed study of availability of molluscs food stocks compared with diet allowed us to describe the feeding strategy of the species on three study sites on Channel coast. The interannual variation in feeding strategy was studied on two bays located the Pertuis Charentais and Breton where a long-term survey of prey stocks has been carried on each winter since 2004
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9

Morelle, Nathalie. "Attribution assistée par ordinateur des spectres RMN de protéines : application à l'étude structurale des ferrocytochromes c555 de Chlorobium limicola f. thiosulfatophilum et c2 de Rhodobacter capsulatus." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10166.

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La structure tridimensionnelle de proteines en solution peut etre determinee par rmn, au prix d'une longue et complexe etape d'interpretation des spectres. Dans ce travail, nous avons concu une panoplie d'outils pour automatiser cette attribution. Pour l'attribution des frequences de resonance aux protons de la molecule a partir de spectres 2d, l'expertise de l'il humain est souvent indispensable et nous proposons une approche semi-automatique, effectuee a l'aide d'un nouveau programme informatique utilisant la technique d'optimisation par recuit simule. Pour les proteines doublement marquees #1#5n/#1#3c, a partir d'experiences heteronucleaires de triple-resonance bien choisies nous avons developpe le programme alps, qui dans des cas favorables rend l'attribution realisable en quelques jours, et offre une grande flexibilite pour le traitement de systemes plus complexes. Enfin nous avons developpe et utilise des outils informatiques pour attribuer et convertir en contraintes de distance entre protons les noe observes dans differentes experiences noesy, en particulier de nouvelles experiences 3d doublement filtrees destinees a l'etude de plus grosses proteines. Les differents programmes ont ete appliques a l'etude de deux cytochromes c, une famille de transporteurs d'electrons solubles participant au metabolisme energetique d'un grand nombre d'organismes. La structure du ferrocytochrome c#5#5#5 de chlorobium limicola f. Thiosulfatophilum a ainsi ete determinee de maniere semi-automatique. Les premieres comparaisons a d'autres petits cytochromes c bacteriens suggerent une forte influence d'une boucle au voisinage de l'heme sur le controle du potentiel redox. Une structure preliminaire a egalement ete calculee a l'aide d'un echantillon enrichi en #1#5n et #1#3c pour le ferrocytochrome c#2 de rhodobacter capsulatus
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Philippe, Anne. "Interactions between shorebirds and benthic macrofauna : making small things bigger." Thesis, La Rochelle, 2016. http://www.theses.fr/2016LAROS012/document.

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Les vasières intertidales sont des environnements complexes et changeants, qui abritent des invertébrés enfouis dans le sédiment (la macrofaune benthique) et sont visités de manière saisonnière par de grands migrateurs : les oiseaux limicoles. Ce travail de recherche s’intéresse aux relations proie-prédateur entre les oiseaux limicoles et leur ressource alimentaire : la macrofaune benthique. La thèse est articulée en 8 chapitres qui présentent des études à différentes échelles spatio-temporelles : des saisons à la décennie, et de la baie à la route migratoire. Ces études sont basées sur un échantillonnage régulier des vasières intertidales du Golfe de Gascogne (France) ainsi que d’échantillonnages en mer des Wadden (Pays-Bas) et au Banc d’Arguin (Mauritanie). Les données de macrofaune (qualité, taille, densité, biomasse) sont couplées aux données de comptages de leurs prédateurs ainsi qu’à leur comportement alimentaire (reconstruction du régime alimentaire d’après les isotopes, les fécès, la modélisation ou l’observation de vidéos). Ces huit études apportent un éclairage sur l’écologie de leurs interactions (en intégrant des variables environnementales telles que le temps d’inondation, la granulométrie, la température, la production primaire, ou encore la latitude). Une attention particulière est portée à la variabilité des proies et du comportement alimentaire de leurs prédateurs, dans l’espace et le temps. Des encarts viennent illustrer pour l’un les techniques de reconstruction du régime alimentaire, pour l’autre les défenses développées par les mollusques marins, ou encore la relation entre énergie à disposition et sélection du site pour les limicoles
Intertidal mudflats are complex ecosystems undergoing constant changes, home to infaunal invertebrates (benthic macrofauna), and migratory sites for particular birds : shorebirds. This research focuses on predator-prey interactions between shorebirds and their macrobenthic prey. The present thesis is composed of 8 chapters which illustrate different spatio-temporal scales : from seasons to the decade, and from the bay to the migratory flyway. These studies are based on regular benthic sampling of intertidal flats along the Bay of Biscay (France), as well as sampling data from the Dutch Wadden Sea and the Mauritanian Banc d’Arguin. Macrobenthic data (quality, sizes, densities, biomass) are linked with shorebird counts and data about their feeding behaviour (diet reconstruction from isotopes, faeces, modeling and video observations). These eight studies shed light on particular relationships between some prey and their predators, and the ecology of these interactions (including environmental variables such as inundation time, grain size, temperature, primary production, or even latitude). Particular attention is given to the variability of prey and predator behaviour in time and space. Inserts are included in between chapters to illustrate for instance different diet reconstruction techniques, anti-predation traits in marine molluscs, or relation between energy available and site selection in shorebirds
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Books on the topic "Limicoli"

1

Vodnye maloshchetinkovye chervi (Oligochaeta limicola) Severa Evropy. Leningrad: Izd-vo "Nauka," Leningradskoe otd-nie, 1988.

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Uzunov, Yordan I. Aquatic oligochets (oligochaeta limicola): Annelida : aphanoneura, oligochaeta, branchiobdellea. Sofia: Professor Marin Drinov Academic Publishing House, 2010.

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Hansen, Eric. Les limicoles de la façade atlantique des Amériques. Cayenne: Sepanguy, 2004.

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Hansen, Eric. Les limicoles de la façade atlantique des Amériques. Cayenne: Sepanguy, 2004.

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Canada, Geological Survey of, ed. Catalogue of Canadian birds.: Water birds, gallinaceous birds, and pigeons, including the following orders : pygopodes, longipennes, tubinares, steganopodes, anseres, herodiones, paludicolæ, limicolæ, gallinæ, and columbæ. Ottawa: S.E. Dawson, 1985.

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Olioso, Georges, and Paul Géroudet. Limicoles, gangas et pigeons d'Europe. DELACHAUX, 2008.

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Gejl, Lars. Guide d'identification des limicoles d'Europe. DELACHAUX, 2016.

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Bezzel, Einhard. Guia De Aves: Somormujos, Garzas, Anatidas, Grullas, Limicolas, Gaviotas Y Otros (Ciencias Del Hombre Y De La Naturaleza). Piramide Ediciones Sa, 2004.

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Cory, Charles B. How To Know The Shore Birds, Limicolae, Of North America, South Of Greenland And Alaska, All The Species Being Grouped According To Size And Color. Kessinger Publishing, LLC, 2007.

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Book chapters on the topic "Limicoli"

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Visscher, P. T., and H. van Gemerden. "Growth of Chlorobium Limicola F. Thiosulfatophilum on Polysulfides." In Green Photosynthetic Bacteria, 287–94. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1021-1_33.

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Bañeras, L., C. M. Borrego, and L. J. Garcia-Gil. "Changes in the Antenna Composition of Chlorobium Limicola Growing in Continuous Culture." In Photosynthesis: Mechanisms and Effects, 173–76. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-3953-3_42.

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Na, J. U., H. Youn, S. H. Cho, C. S. Hwang, Y. C. Hah, and S. O. Kang. "Characterization of Glutamate Synthase Purified from Chlorobium limicola f. thiosulfatophilum NCIB 8327." In Photosynthesis: from Light to Biosphere, 4263–66. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0173-5_1002.

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Oh-oka, Hirozo, Saki Kakutani, Shoichiro Kamei, Hiroshi Matsubara, Masayo Iwaki, and Shigeru Itoh. "Photoactive Reaction Center (PscA/Cytochrome c 551)2 Complex of Chlorobium limicola." In Photosynthesis: from Light to Biosphere, 1061–64. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0173-5_250.

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Gillbro, T., Á. Sandström, V. Sundström, and J. M. Olson. "Picosecond Energy Transfer Kinetics in Chlorosomes and Bacteriochlorophyll A-Proteins of Chlorobium Limicola." In Green Photosynthetic Bacteria, 91–96. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1021-1_11.

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Shirasawa, Sei-Ichi, and Hidehiro Sakurai. "Labeling by a Fluorescent Maleimide of Peptides of Chromatophores from a Greensulfur Bacterium, Chlorobium limicola." In Current Research in Photosynthesis, 1667–70. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0511-5_384.

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Steensgaard, Dorte B., Cornelis A. van Walree, Lluis Bañeras, Caries M. Borrego, Jesus Garcia-Gil, and Alfred R. Holzwarth. "Structure and Function of Chlorosomes of Chlorobium Limicola UdG 6040 Containing Both Bchl c and Bchl d." In Photosynthesis: Mechanisms and Effects, 101–4. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-3953-3_24.

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Freiberg, A. M., K. E. Timpman, and Z. G. Fetisova. "Excitation Energy Transfer in Living Cells of the Green Bacterium Chlorobium Limicola Studied by Picosecond Fluorescence Spectroscopy." In Green Photosynthetic Bacteria, 81–90. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1021-1_10.

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[Idacius], Hydatius. "Hydatii Limici Chronica Subdita." In The Chronicle of Hydatius and the Consularia Constantinopolitana: Two Contemporary Accounts of the Final Years of the Roman Empire, edited by R. W. Burgess, 69–133. Oxford University Press, 1993. http://dx.doi.org/10.1093/oseo/instance.00129143.

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Conference papers on the topic "Limicoli"

1

Pšenčík, J., M. Vácha, F. Adamec, M. Ambrož, J. Dian, J. Boček, and J. Hála. "Spectral Hole Burning in Chlorosomes of Green Photosynthetic Bacteria Chlorobium limicola." In Spectral Hole-Burning and Luminescence Line Narrowing: Science and Applications. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/shbl.1992.tub19.

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Chlorobium limicola is a green sulfur photosynthetic bacteria. Its light harvesting system consists of huge extra-membrane ellipsoidal structures (100-150 nm long and 30-40 nm in diameter) called chlorosomes. Each chlorosome contains several thousands of bacteriochlorophyll-c (BChl-c) molecules (organized in long rod-like pigment-protein complexes) together with a significant amount of carotenoids. The whole chlorosome is enveloped with a BChl-a containing layer and attached to the cytoplasmic membrane through a water soluble BChl-a polypeptide link complex. Light energy absorbed in BChl-c is transfered via BChl-a in the envelope and via BChl-a in the link polypeptide complex to the BChl-a containing core antenna which surrounds the reaction center and is located within the cytoplasmic membrane. In the last few years, the dynamics of the excited energy transport (EET) in the whole light harvesting system of Chlorobium limicola and related species have been extensively studied. Fast EET from BChl-c to BChl-a was studied by means of ps absorption [1] and ps fluorescence decay [2]. Both methods yield similar values of the shortest decay components which characterize the EET: 21 ps and 26 ps, respectively. Detailed hole burning study of the BChl-a containing link antenna of Prosthecochloris aestuarii revealed excitonic structure of the antenna subunits and provided the decay times (on the order of 100 fs) of upper excitonic levels [3].
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Radashevsky, V. I., and A. A. Paskochina. "QUANTITATIVE CHARACTERISTICS OF THE POPULATION OF POLYDORA LIMICOLA ANNENKOVA, 1934 ON THE AVACHA BAY LITTORAL IN AUTUMN 2022." In Сохранение биоразнообразия Камчатки и прилегающих морей. Петропавловск-Камчатский: Камчатский филиал Тихоокеанского института географии ДВО РАН, 2022. http://dx.doi.org/10.53657/9785961004229_175.

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