Recursos de colección

ORBi Open Repository and Bibliography (298.599 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 61

  1. A panmictic Amazonian world? : Bryophytes testify

    Ledent, Alice
    Understanding connectivity over different spatial and temporal scales is fundamental for biodiversity conservation and management. The Amazonian rainforest, one of the most diverse biodiversity hotspots, has experienced dramatic range contractions and expansions due to Pleistocene climate oscillations, and its human-induced fragmentation has accelerated at an unparalleled pace in the course of the Anthropocene. In this context, epiphytes, with their relatively short life-cycles, offer an ideal model to investigate the impact of past and present fragmentation on patterns of genetic structure and diversity. Due to the necessity to switch from one host tree to another, or from one leaf to another,...

  2. Iron and silicon isotope behaviour accompanying weathering in Icelandic soils, and the implications for iron export from peatlands

    Opfergelt, Sophie; Williams, H; Cornelis, Jean-Thomas; Guicharnaud; Georg; Siebert; Gislason; Halliday; Burton
    Peer reviewed

  3. The influence of weathering and soil organic matter on Zn isotopes in soils

    Opfergelt, Sophie; Cornelis, Jean-Thomas; Houben, David; Givron, Claudine; Burton, Kevin; Mattielli, Nadine
    Peer reviewed

  4. Le Grand Chemin du Luxembourg

    Hurdebise, Quentin
    Dans le cadre des activités de l'Année Patrimoniale , le dimanche 8 octobre de 16h à 17h30 à l'église Saint-Jacques (Fossse), Quentin Hurdebise fait redécouvrir l'histoire du Grand Chemin du Luxembourg connu notamment pour le transport des écorces de chênes qui l'empruntait en direction de Stavelot et de Malmedy. Quentin revient sur l'histoire de ce chemin, le contexte dans lequel il a pu naître, les différents noms qui lui sont attribués, ainsi que les différentes curiosités naturelles et historiques qui la jalonnent (faune et flore, maisons et personnages célèbres, croix et monuments, etc.).

  5. Le Grand Chemin du Luxembourg

    Hurdebise, Quentin
    Dans le cadre des activités de l'Année Patrimoniale , le dimanche 8 octobre de 16h à 17h30 à l'église Saint-Jacques (Fossse), Quentin Hurdebise fait redécouvrir l'histoire du Grand Chemin du Luxembourg connu notamment pour le transport des écorces de chênes qui l'empruntait en direction de Stavelot et de Malmedy. Quentin revient sur l'histoire de ce chemin, le contexte dans lequel il a pu naître, les différents noms qui lui sont attribués, ainsi que les différentes curiosités naturelles et historiques qui le jalonnent (faune et flore, maisons et personnages célèbres, croix et monuments, Observatoire Terrestre de Vielsalm, etc.).

  6. Wal-ES : Cadre d'évaluation des services écosystémiques

    Pipart, Nathalie; Maebe, Laura; Dufrêne, Marc; Dendoncker, Nicolas

  7. Wal-ES : Cadre conceptuel des services écosystémiques

    Maebe, Laura; Pipart, Nathalie; Dendoncker, Nicolas; Dufrêne, Marc

  8. SAPOLL : A cross-border action plan for wild pollinators

    Drossart, Maxime; Folschweiller, Morgane; Jacquemin, Floriane; Dufrêne, Marc; Violle, Cyrille; Michez, Denis; Rasmont, Pierre
    Wild pollinators in the France-Wallonia-Vlaanderen cross-border zone represent a valuable but highly endangered resource. In order to protect these pollinators, it is essential to set up a cross-border organization that enables coordinated actions and synergies between regions. Indeed, isolated actions on both sides of the border are unlikely to lead to the sustainable management of this indispensable resource. The challenge is huge because wild pollinators, wild bees, syrphs and butterflies, are essential to maintaining agriculture and ecosystems in our regions. In order to meet this challenge, the SAPOLL project initiates the implementation of a cross-border action plan for wild pollinators...

  9. WalES

    Maebe, Laura; Pipart, Nathalie; Dendoncker, Nicolas; Dufrêne, Marc; Bertrand, Gilles; Généreux, Catherine; Debruyne, Catherine; Fermin, Nicolas; Brahic, Yvan

  10. Plant diversity loss forces shift in ecological strategies for wild bees : Insights from historical time series at a country-wide scale

    Jacquemin, Floriane; Violle, Cyrille; Munoz, François; Taudière, Adrien; Rasmont, Pierre; Dufrêne, Marc
    Network analysis approach was used to investigate species composition, their interactions and dynamics over time to relate network patterns to ecological processes. Historical database used contains information about plant species visited at sampling time for ~ 50,000 identified specimens since 1900. Several indices were calculated to characterize the network topology (connectance, mean number of links, modularity, nestedness, H2fun, d2fun,…) and the ecological roles of bees (participation (c) and connectivity (z) coefficients). As a result, we identified a loss of bee species specialization through a loss of very specialist bee species and a shift to more generalist species. This work highlights...

  11. WalES: Walloon platform on Ecosystem Services

    Maebe, Laura; Pipart, Nathalie; Dendoncker, Nicolas; Dufrêne, Marc; Bertrand, Gilles

  12. Ecosystem services in Wallonie ... What's up?

    Maebe, Laura; Pipart, Nathalie; Dendoncker, Nicolas; Brogna, Delphine; Mercken, Kathleen; Jacquemin, Floriane; Campion, Morgane; Uyttenbroeck, Roel; Pécheur, Emilie; Boeraeve, Fanny; de Montpellier, Clothilde; Dufrêne, Marc

  13. Naturalist historical databases help us to better understand plant-bee interactions and their dynamics across space and time

    Jacquemin, Floriane; Folschweiller, Morgane; Drossart, Maxime; Rasmont, Pierre; Violle, Cyrille; Dufrêne, Marc
    This work highlights the interest of compiling opportunistic naturalist databases and to systematically inform the host plants on which species are observed during sampling time to assess the impact of land-use changes on plant-bee interactions, thanks to unique historical time series. Such initiative is a step forward in the perspective of pollination service mapping and tracking of changes at a biogeographical scale.

  14. WalES: a common and shared platform on Ecosystem Services in Wallonie

    Maebe, Laura; Pipart, Nathalie; Dendoncker, Nicolas; Dufrêne, Marc; Généreux, Catherine; Debruyne, Catherine; Brahic, Yvan; Fermin, Nicolas; Bertrand, Gilles

  15. Les services écosystémiques : Définitions et cadre conceptuel

    Maebe, Laura; Dufrêne, Marc; Pipart, Nathalie; Dendoncker, Nicolas

  16. Ecosystem services in Wallonie ... What's up?

    Maebe, Laura; Nathalie, Pipart; Brogna, Delphine; Jacquemin, Floriane; Campion, Morgane; Uyttenbroeck, Roel; Pécheur, Emilie; Boeraeve, Fanny; de Montpellier, Clothilde; Dufrêne, Marc; Dendoncker, Nicolas
    In Wallonia, a growing amount of projects on ecosystem services (ES) are conducted. These projects implement the ES concept at different spatial scales (ranging from the country scale to the plot scale), focus on some particular ES or consider all of them and finally, rely on one or multiple valuation types (i.e. biophysical, social and economic). With their multiple dimensions they feed each other with reflexions and methods. The aim of the stand is to give an overview of these ongoing projects taking place in Wallonia. Their similarities and common objectives will be highlighted on posters while their specificities will...

  17. Wal-ES: Walloon platform on Ecosystem Services

    Maebe, Laura; Dufrêne, Marc; Pipart, Nathalie; Dendoncker, Nicolas; Boeraeve, Fanny
    Introduction Beyond the intrinsic, aesthetic and spiritual values one may assign to nature, the reasons to manage it are multiple due to its central role in a wide panel of ecological functions crucial to human wellbeing and development. For instance, biological structures and ecological processes provide us food, raw materials, water and energy, protect us against erosion or floods, control water quality, pest impact, pollination, give us large enjoyable spaces for recreation, sport and leisure activities, etc. Despite contributing considerably to economic development, social welfare and health, natural resources have often been considered as inexhaustible and unlimited which has caused dramatic...

  18. Influences of geothermal sulfur bacteria on a tropical coastal food web

    Pascal, P. Y.; Dubois, S. F.; Goffette, A.; Lepoint, Gilles
    Peer reviewed

  19. Bioaccumulation des métaux traces dans les organes la moule Mytilus galloprovincialis de la région ouest algérienne

    Rouabhi, Yamina Leila; Rouane-Hacene, Omar; Grosjean, Philippe; Richir, Jonathan

  20. The mathematical challenges in agrogeophysics: examples and ways ahead

    Garré, Sarah; Nguyen, Frédéric; Lesparre, Nolwenn; Hermans, Thomas
    Peer reviewed

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