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ORBi Open Repository and Bibliography (210,026 recursos)
In may 2007, the ULg's Administrative Board (joined in June 2007 by the FUSAGx) decided to create an institutional repository and defined a strong institutional self-archiving policy to increase the visibility, accessibility and impact of the University's publications (Board's decision). This decision led to the official launch, in November 2008, of the ORBi platform including both the Academic Bibliography and the Institutional Repository of the Wallonia-Europe University Academy.

Life sciences => Environmental sciences & ecology

Mostrando recursos 1 - 20 de 4,375

1. Unveiling biogeographic patterns of Antarctic cyanobacteria by 454 pyrosequencing - Wilmotte, Annick; Stelmach Pessi, Igor; De Carvalho, Pedro; Laughinghouse, Haywood Dail; Baurain, Denis
Cyanobacteria are often considered as the dominant phototrophs in Antarctic lacustrine environments, primarily occurring in benthic or floating microbial mat communities. Previous studies have indicated the presence of endemic cyanobacteria in the Antarctic Realm, but the extent and patterns of cyanobacterial bioregionalisation, if any, is still largely unknown. Therefore, our objective is to assess the cyanobacterial diversity in Antarctic lacustrine microbial mats using 454 pyrosequencing, in order to determine if cyanobacterial biogeographic patterns are similar to those observed for multicellular organisms. This will be useful also as baseline data, for later comparisons and assessments of the impact of global change.

2. Ammonia oxidizing bacteria community structure and richness under coniferous/deciduous tree species at three temperate forest sites - Malchair, Sandrine
Peer reviewed

3. unité: Eau-Environnement-Développement (ULg Campus Arlon): la télédétection au service de l'agriculture - Wellens, Joost; Lang, Marie; Benabdelouahab, Tarik; Denis, Antoine; Tychon, Bernard

4. Effects of a high-fibre diet on ammonia and greenhouse gas emissions from gestating sows and fattening pigs - Philippe, François-Xavier; Laitat, Martine; Wavreille, José; Nicks, Baudouin; Cabaraux, Jean-François
Peer reviewed

5. Phylogenetic analysis of cultivation-resistant terrestrial cyanobacteria with massive sheaths (Stigonema spp. and Petalonema alatum, Nostocales, Cyanobacteria) using single-cell and filament sequencing of environmental samples - Mares, Jan; Lara, Yannick; Dadakova, Ina; Hauer, Tomas; Uher, Bohuslav; Wilmotte, Annick; Kastovsky, Jan
Peer reviewed

6. Un partenariat pour promouvoir la biodiversité dans les carrières belges - Harzé, Mélanie; Lussis, Benoît; Boisson, Sylvain; Monty, Arnaud; Pitz, Carline; Seleck, Maxime; Mahy, Grégory
Plus que toute autre industrie, les carrières entretiennent un lien étroit avec les écosystèmes. L’exploitation d’une carrière crée des conditions abiotiques propices au développement d’une mosaïque d’habitats comme les falaises et arènes rocheuses, les plans d’eau temporaires ou les pelouses pionnières, favorables à certaines espèces protégées en Europe comme le hibou grand-duc et le crapaud calamite. Nombre d’entre eux sont d’intérêt communautaire et sont devenus rares dans le Nord de l’Europe. Ces habitats temporaires s’installent souvent spontanément pendant l’exploitation d’une carrière mais une action conservatoire peut s’avérer nécessaire pour leur conservation sur le long terme. En fin de vie de...

7. Newt life after fish introduction: extirpation of paedomorphosis in a mountain fish lake and newt use of satellite pools - Denoël, Mathieu; Scime, Patrick; Zambelli, Nicola
Peer reviewed

8. Expression of sexual ornaments in a polymorphic species: phenotypic variation in response to environmental risk - Winandy, Laurane; Denoël, Mathieu
Peer reviewed

9. Turbulence effect on gas transport in three contrasting forest soils - Maier, Martin; Schack-Kirchner, Helmer; Aubinet, Marc; Goffin, Stéphanie; Longdoz, Bernard; Parent, Florian
Peer reviewed

10. Trophodynamics of estuarine intertidal harpacticoid copepods based on stable isotope composition and fatty acid profiles - Cnudde, Clio; Moens, Tom; Werbrouck, Eva; Lepoint, Gilles; Van Gansbeke, Dirk; De Troch, Marleen
Peer reviewed

11. Termite mound identification through aerial photographic interpretation in Lubumbashi , Democratic Republic of the Congo : methodology evaluation - Vranken, Isabelle; Adam, Marielle; Mujinya Baziraké, Basile; Munyemba Kankumbi, François; Baert, Geert; Van Ranst, Eric; Visser, Marjolein; Bogaert, Jan
Peer reviewed

12. Comparison of Life cycle Impact Assessment methods in a case of crop in Northern France - Merchan, Angel; Combelles, Agathe

13. Comparison of Life cycle Impact Assessment methods in a case of crop in Northern France - Merchan, Angel; Combelles, Agathe
Peer reviewed

14. Cyanobacteria - the constructors of travertines? - Kleinteich, Julia; Stelmach Pessi, Igor; Velazquez, David; Javaux, Emmanuelle; Storme, Jean-Yves; Darchambeau, François; Borges, Alberto; Compère, Philippe; Golubic, Stjepko; Wilmotte, Annick
Cyanobacteria are participating in carbonate build-up and travertine formation in the Belgian river Hoyoux and its tributaries. In this study, we sampled calcareous material from travertines and oncoliths from four sampling sites on the Hoyoux river and Triffoy brook. In addition, the water chemistry was determined. The structure of the material was analyzed by Scanning Electron Microscopy and Raman microscopy (?°. The dominant cyanobacterial species was isolated and identified on the basis of microscopic observation and amplification of the 16S-ITS fragment as Phormidium sp., likely functioning as the ‘architect’ of the travertine system. In order to describe the full diversity of...

15. Molecular diversity of microorganisms in Antarctic lacustrine microbial mats - Wilmotte, Annick; Stelmach Pessi, Igor; Sweetlove, Maxime; Obbels, Dagmar; Vanormelingen, Pieter; Tytgat, Bjorn; Willems, Anne; Verleyen, Elie; Vyverman, Wim; Van De Vijver, Bart; Lara, Yannick; Van De Putte, Anton
The BeSPO project CCAMBIO aims to study the biogeographical distribution of microorganisms in lacustrine microbial mats using a combination of techniques including microscopical observations (light and electronic), strain isolation, and molecular diversity assessment using Next Generation Sequencing. The samples were collected in different Antarctic and sub-Antarctic biogeographical regions. A multivariate analysis of diatoms showed that these regions hosted different diatom flora. Endemic diatom taxa were also observed, and a multigene molecular phylogeny of Pinnularia borealis showed a high genetic diversity. A new Scenedesmacean species was described from Antarctica, Chodatodesmus australis. A comparison of the bacterial diversity retrieved by cultivation or...

16. Measurements of air-ice CO2 fluxes over artificial sea ice emphasize the role of bubbles in gas transport - Kotovitch, Marie; Moreau, Sébastion; Zhou, Jiayun; Tison, Jean-Louis; Van Der Linden, Fanny; Dieckmann, Gerhard; Evers, Karl-­‐Ulrich; Thomas, David; Delille, Bruno

17. The need for site-specific height-diameter allometry of Central African moist forests - Loubota Panzou, Grâce Jopaul; Doucet, Jean-Louis; Fayolle, Adeline
L’utilisation de l’allométrie hauteur-diamètre globale ou régionale en milieu tropical pourrait avoir des conséquences importantes dans les estimations de biomasse et des stocks de carbone. L’objectif de ce travail est d’identifier les variations de l’allométrie hauteur-diamètre au sein de deux types de forêts (forêt sempervirente et forêt semi-décidue) au sud du Cameroun et d’examiner leurs conséquences sur les estimations de biomasse. Le diamètre et la hauteur ont été mesurés sur un total de 521 arbres appartenant à 15 espèces et couvrant une gamme de diamètre de 10 à 240 cm. Une calibration des mesures non destructives et destructives de la...

18. 6. Lutte intégrée contre les maladies - Bataille, Charlotte; Duvivier, Maxime; Eylenbosch, Damien; Heens, Benoît; Mahieu, Olivier; Meza Morales, Walter; Monfort, Bruno

19. 4. La fumure azotée - Meza Morales, Walter; Monfort, Bruno; Dumont, Benjamin; Mahieu, Olivier; Vandenberghe, Christophe; Blondiau, L.; Collin, C.; Destain, Jean-Pierre; Bodson, Bernard

20. 2. Implantation des cultures - Eylenbosch, Damien; Meza Morales, Walter; Monfort, Bruno; Roisin, Christian; Bodson, Bernard

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