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ORBi Open Repository and Bibliography (197,077 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 4,188

1. A review on the use of entropy in landscape ecology: heterogeneity, unpredictability, scale dependence and their links with thermodynamics - Vranken, Isabelle; Baudry, Jacques; Aubinet, Marc; Visser, Marjolein; Bogaert, Jan
Peer reviewed

2. Projet DACEFI 2. Atlas cartographique. Présentation des outils d'analyse spatiale et d'aide à la décision. - Morin, Amélie; Meunier, Quentin; Federspiel, Michèle; Vermeulen, Cédric
Faisant suite à une première phase (2006-2008), le projet pilote Développement d’Alternatives Communautaires à l’Exploitation Forestière Illégale (DACEFI-2, de 2010 à 2014) s’est employé à tester au Gabon la mise en oeuvre des forêts communautaires, promues par le code forestier gabonais en 2001 (loi n°016/01). Pour cela, le projet a appuyé les communautés rurales désireuses de gérer elles-mêmes une portion de forêt et les a accompagnées tout au long du processus de création d’une forêt communautaire. Ce processus, adapté dans la mesure du possible aux communautés rurales, est jalonné de multiples étapes et peut paraitre parfois long et fastidieux. Présentant des...

3. Lettre d'information du projet Dacefi-Synthèse & réalisations majeures - Meunier, Quentin; Morin, Amélie; Moumbougou, Carl; Boldrini, Sylvie; Vermeulen, Cédric
Cette dernière lettre d'information du projet présente le bilan de ses réalisations et les avancées importantes du Gabon en termes de foresterie communautaire

4. Degree of phosphorus saturation in agricultural loamy soils with a near-neutral pH - Renneson, Malorie; Vandenberghe, Christophe; Dufey, Joseph; Marcoen, Jean Marie; Bock, Laurent; Colinet, Gilles
Peer reviewed

5. Wildlife Conservation Practitioners' skills : between official goals and real practices - Denayer, Dorothée
Peer reviewed

6. Impact of shading on meiofauna in a Posidonia oceanica meadow - Pete, Dorothée; Gobert, Sylvie
Posidonia oceanica meadow is an endemic ecosystem of the Mediterranean coasts. A known threat to this ecosystem is aquaculture. In zones of intensive fish production, P. oceanica meadow tends to be less healthy or to disappear .One of the reasons for this is a decrease in the light that reaches the leaves (direct shading, increase of water turbidity or of epiphytic algae density). Unfortunately, when the meadow begins to die, it is often too late to act. So, people are trying to find indicators that react early to this kind of perturbations. In this framework, this study focuses on the impact of shading (without nutrient enrichment) on the...

7. Impact of shading on meiofauna in a Posidonia oceanica meadow - Pete, Dorothée; Gobert, Sylvie
Posidonia oceanica meadow is an endemic ecosystem of the Mediterranean coasts. A known threat to this ecosystem is aquaculture. In zones of intensive fish production, P. oceanica meadow tends to be less healthy or to disappear .One of the reasons for this is a decrease in the light that reaches the leaves (direct shading, increase of water turbidity or of epiphytic algae density). Unfortunately, when the meadow begins to die, it is often too late to act. So, people are trying to find indicators that react early to this kind of perturbations. In this framework, this study focuses on the impact of shading (without nutrient enrichment) on the...

8. Sound production in piranhas and relatives: preliminary results - Melotte, Geoffrey; Michel, Christian; Parmentier, Eric
Acoustic communication plays an important role in the life of many teleost species where it is mainly involved in agonistic and/or courtship behaviour(s). Despite the large number of species in the family Serrasalmidae (92 species), sound production has been described only in some of them, particularly in the genera Serrasalmus and Pygocentrus. The aim of this study is to investigate the sound producing abilities of different Serrasalmidae species and to understand the corresponding mechanisms. Two herbivorous species of Serrasalmidae, Piaractus brachypomus and Metynnis lippincottianus, produce sounds composed of a single pulse. The mechanism involved in these species is not yet...

9. When microplastic is not microplastic: ingestion of artificial cellulose fibers by macrofauna living in seagrass macrophytodetritus - Collard, France; Remy, François; Gilbert, Bernard; Compère, Philippe; Eppe, Gauthier; Lepoint, Gilles
Peer reviewed

10. Contribution to the modeling of shellfish zooplankton production in wastewater stabilization ponds (WSP) - Liady, Mouhamadou Nourou Dine; Fiogbé, Emile-Didier; Vasel, Jean-Luc
Peer reviewed

11. Tree species diversity effects on soil microbial biomass, diversity and activity across European forest types - Carnol, Monique; Baeten, Lander; Bosman, Bernard; De Wandeler, Hans; Muys, Bart
Increasing tree species diversity in forests might contribute to ecosystem-service maintenance, as well as to the reconciliation of regulating, provisioning and supporting services within the frame of multifunctional and sustainable forestry. Individual tree species influence biogeochemical cycling through element deposition (throughfall, litterfall), and through microbial activities in the soil. Yet, the influence of mixing tree species on these ecosystem processes is unclear, in particular concerning the microbial diversity and activity in soils. Here we synthesize results from the Exploratory Platform of the FunDivEUROPE project (http://www.fundiveurope.eu/). This network of 209 comparative plots covering a tree diversity gradient of 1 to 5 tree...

12. Effect of tree species mixture on earthworm communities on a continental scale - De Wandeler, Hans; Baeten, Lander; Carnol, Monique; Hermy, Martin; Muys, Bart
The belowground food web represents a major part of associated biodiversity in forest ecosystems, and plays a significant role in the ecosystem processes of litter decomposition and nutrient turnover. Past research has demonstrated overwhelming evidence of strong tree species identity effects on earthworm communities. It has been proposed that increased plant community diversity would be beneficial to the abundance and diversity of the belowground food web, but effects of tree species diversity on earthworm communities have seldom been reported, and are inconclusive. In this study at continental scale we evaluated whether tree species diversity positively affects earthworm biomass and diversity. For this purpose the FunDivEUROPE Exploratory Platform was used...

13. Heavy Metals Concentration in Adenodolichos rhomboideus (O. Hoffm.) Harms. - Tshibangu, M.; Nsahlai, V.; Kiatoko, M.; Hornick, Jean-Luc
Peer reviewed

14. Vers une meilleur compréhension de l’assainissement non collectif en Afrique Subsaharienne intégrant les trois maillons de la chaine: Application à la ville de Bujumbura - Bigumandondera, Patrice; Nsavyimana, Gaston; Ndikumana, Théophile; Vasel, Jean-Luc
Peer reviewed

15. La conservation de la nature en Wallonie. Un premier bilan - Sérusiaux, Emmanuël; Gathoye, Jean-Louis

16. Un projet de surveillance de l'état de l'environnement par bio-indicateurs - Devillers, Pierre; Beudels, Roseline; Devillers-Terschuren, Jean; Lebrun, Philippe; Sérusiaux, Emmanuël
Peer reviewed

17. The seed dispersal of the afro- tropical tree species Staudtia kamerunensis (Myristicaceae) - Hambuckers, Alain

18. Le comité scientifique des réserves naturelles de Haute-Savoie entre science et gestion - Denayer, Dorothée

19. Characterization of riparian zones in wallonia (belgium) - Michez, Adrien
The present study proposes an innovative approach to automatically extract riparian zone characteristics in order to assess its quality, from pre-determined river management reaches (1-3 km long) to regional scale (ca. 13000 km for 1000 management sectors). The aim of this remotely sensed monitoring is to improve the river and riparian zone management and planning by providing some key information for river managers. This first research is exclusively based on data which are available at the regional scale (170000 square km) to develop automated tools to implement the methodology to the whole Walloon river network (13000 km) before 2015 with an...

20. Characterization of riparian zones in wallonia (belgium) from local to regional scale using aerial lidar data and photogrammetric DSM - Michez, Adrien
Peer reviewed

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