References of "Branquart, Etienne"
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See detailLes forêts anciennes en Wallonie. 1ère partie : Concepts généraux
Jacquemin, Floriane ULg; Kervyn, Thierry; Branquart, Etienne et al

in Forêt Wallonne (2014), (131), 34-49

Au cours des siècles, la forêt wallonne a subi de profondes mutations qui marquent encore la structure et le fonctionnement des écosystèmes forestiers actuels. Néanmoins, certaines forêts ont été ... [more ▼]

Au cours des siècles, la forêt wallonne a subi de profondes mutations qui marquent encore la structure et le fonctionnement des écosystèmes forestiers actuels. Néanmoins, certaines forêts ont été relativement épargnées. Ces forêts, qualifiées de « forêts anciennes » en raison de la continuité temporelle de leur état forestier, s’avèrent d’un grand intérêt en matière de biodiversité, de naturalité de fonctionnement et de capacité d’adaptation aux changements globaux. Leur reconnaissance et leur identification sont utiles pour assurer une gestion responsable des territoires. [less ▲]

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See detailEcosystem services of mixed species forest stands and monocultures: comparing practitioners' and scientists' perceptions with formal scientific knowledge
Carnol, Monique ULg; Baeten, Lander; Branquart, Etienne et al

in Forestry (2014)

Mixed species stands might contribute to important goals of sustainable forest management, such as higher biological diversity, more resistance and resilience to disturbances and higher carbon storage ... [more ▼]

Mixed species stands might contribute to important goals of sustainable forest management, such as higher biological diversity, more resistance and resilience to disturbances and higher carbon storage. Knowledge of stakeholders' perceptions of such ecosystem services in mixed species stands is required for effective policy development. We showed that practitioners' and scientists' perceptions of ecosystem services in mixed species stands in Belgium differed from formal scientific knowledge derived from a synthesis of published studies. The positive perception of supporting, regulating and cultural services in mixed species stands contrasted with less conclusive results from the literature, where positive, negative and neutral effects were reported. Many respondents also signified a lack of information about regulating services. Furthermore, provisioning services were perceived as equal in mixed species stands and monocultures, in contrast to higher productivity demonstrated in mixed species stands in the literature. The regional (Flanders and Wallonia) ecological and socio-economic context influenced both the perception of ecosystem services and of the importance of management objectives. Our results highlighted the need to address the lack of scientific data, to adapt communication to the ecological and socio-economic context, as well as to improve information flow on regulating services and productivity. [less ▲]

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See detailThe Code of conduct on invasive alien plants in Belgium: results after two years of communication with the horticultural sector
Halford, Mathieu ULg; Branquart, Etienne; Vanderhoeven, Sonia et al

Conference (2013, October 10)

In Belgium there are around 60 plant species listed as invasive (http://ias.biodiversity.be). Most of them were introduced as ornamentals. Except a few plants that have become famous invaders throughout ... [more ▼]

In Belgium there are around 60 plant species listed as invasive (http://ias.biodiversity.be). Most of them were introduced as ornamentals. Except a few plants that have become famous invaders throughout the country, the invasiveness of these ornamentals remains unknown outside the scientific audience. Due to this lack of information, the major part is still available in nurseries. In order to reduce the introductions of these plants, a Code of conduct was launched in September 2011 within the frame of the AlterIAS project (ALTERnatives to Invasive Alien Species), an ‘Information & Communication’ Life project dedicated to invasive plants and prevention in the green sector (www.alterias.be). The Code was elaborated in consultation with horticulture professionals, scientists and representatives of administrations. Five measures were approved: (1) know the list of invasive plants in Belgium; (2) stop the trade and the plantation of some invasive plants; (3) disseminate information on invasive plants; (4) promote the use of non invasive alternative plants and (5) participate in early detection of new invaders. Restrictions of use target a list of 28 species negotiated with the sector. An awareness campaign entitled “Plant different” is on progress to promote the Code among professionals and gardeners. Different communication tools are used. Social surveys were realized to assess the tools most efficient and the subsequent change of attitudes. But raising awareness on invasive plants is difficult due to different public perception. Communication should be focused on positive messages. Negative communication with alarming terms or military metaphors re-enforces the feeling of being guilty instead of encouraging concrete solutions. Thanks to constant efforts in communication, this ‘environmentally safe’ charter is attracting new partners over time. But changing people’s attitude is a long term process. The Code of conduct will require more time than two years to be widely adopted by the horticultural sector in Belgium. [less ▲]

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See detailComparing risk analyses of some potential invasive mammal species in Western Europe
Schockert, Vincianne ULg; Branquart, Etienne; Baiwy, Evelyne et al

Poster (2013, August)

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See detailAssessment of the functional role of tree diversity: the multi-site FORBIO experiment
Verheyen, Kris; Ceunen, Kris; Ampoorter, Evy et al

in Plant Ecology and Evolution (2013), 146(1), 26-35

Context – During the last two decades, functional biodiversity research has provided strong support for the hypothesis that more biodiverse ecosystems have the potential to deliver more and better ... [more ▼]

Context – During the last two decades, functional biodiversity research has provided strong support for the hypothesis that more biodiverse ecosystems have the potential to deliver more and better services. However, most empirical support for this hypothesis comes from simple structured communities that are relatively easy to manipulate. The impact of forest biodiversity on forest ecosystem functioning has been far less studied. Experiment design – In this paper, we present the recently established, large-scale FORBIO experiment (FORest BIOdiversity and Ecosystem Functioning), specifically designed to test the effects of tree species diversity on forest ecosystem functioning. FORBIO’s design matches with that of the few other tree diversity experiments worldwide, but at the same time, the FORBIO experiment is unique as it consists of a similar experimental set-up at three sites in Belgium (Zedelgem, Hechtel-Eksel and Gedinne) with contrasting edaphic and climatological c haracteristics. This design will help to provide answers to one of the most interesting unresolved questions in functional biodiversity research, notably whether the effects of complementarity on ecosystem functioning decrease in less stressful and more productive environments. At each site, FORBIO consists of 41 to 44 plots (127 plots in total) planted with monocultures and mixtures up to four species, selected from a pool of five site-adapted, functionally different tree species. When allocating the treatments to the plots, we maximally avoided any possible covariation between environmental factors. Monitoring of ecosystem functioning already started at the Zedelgem and Gedinne sites and will start soon in Hechtel-Eksel. Multiple processes are being measured and as the trees grow older, we plan to add even more processes. Expected results – Not only basic science, but also forest management will benefit from the results coming from the FORBIO experiment, as FORBIO is, for instance, also a test case for uncommon, not well-known tree species mixtures. To conclude, FORBIO is an important ecosystem experiment that has the potential to deliver badly needed insights into the multiple relationships between biodiversity and ecosystem functioning, which will be valuable for both science and practice. [less ▲]

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See detailLa cartographie des forêts anciennes en Wallonie
Kervyn, Thierry; Branquart, Etienne; Dufrêne, Marc ULg

Poster (2011)

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See detailMilieux ouverts forestiers, lisières forestières et biodiversité: de la théorie à la pratique.
Fichefet, Violaine; Branquart, Etienne; Claessens, Hugues ULg et al

Book published by Service public de Wallonie (2011)

L'aspect de la forêt naturelle, dans laquelle ont évolué les espèces forestières actuelles pendant des milliers d'années, était probablement beaucoup plus ouvert que ce que l'on peut imaginer aujourd'hui ... [more ▼]

L'aspect de la forêt naturelle, dans laquelle ont évolué les espèces forestières actuelles pendant des milliers d'années, était probablement beaucoup plus ouvert que ce que l'on peut imaginer aujourd'hui, sous l'effet de perturbations diverses et de l'action des grands herbivores. Si les ouvertures en forêt sont désormais le plus souvent liées à l'action humaine, le potentiel biologique de ces milieux n'en est pas moins élevé grâce au développement de cortèges d'organismes héliophiles caractéristiques des faciès de régénération des forêts naturelles. Par ailleurs, les lisières, qu'elles soient situées en bordure de ces ouvertures intra-forestières ou en périphérie des massifs forestiers, contribuent dans une large mesure à l'intérêt biologique des zones ouvertes, pour peu qu'elles soient progressives et dynamiques. La co-existence de lisières et de différents types de milieux ouverts variant entre eux à la fois dans l'espace (taille, forme,...) et dans le temps (événements ponctuels, récurrents ou permanents) au sein d'un massif géré est un atout incontestable pour la biodiversité. Leur intérêt biologique est intimement lié à la structure et à la composition de la végétation et, partant, à leur mode d'exploitation et de gestion. Ce guide propose donc, au-delà d'une révision théorique sur le sujet, de nombreux conseils pratiques d'aménagement et d'entretien des ouvertures forestières, afin d'en optimiser la capacité d'accueil tout en interférant le moins possible avec la production sylvicole. [less ▲]

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See detailThe Code of conduct on invasive plants in Belgium
Halford, Mathieu ULg; Mathys, Catherine; Heemers, Leen et al

Book (2011)

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See detailDes alternatives aux plantes invasives: plantons autrement - le jardin, un refuge pour la biodiversité
Mathys, Catherine; Halford, Mathieu ULg; Heemers, Leen et al

Book published by SPF Santé Publique, Sécurité de la Chaîne alimentraire et Environnement (2011)

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See detailGestion des invasives en Belgique : Une approche multi-facettes De la prévention à l’éradication
Mahy, Grégory ULg; Branquart, Etienne

Conference (2010, November 18)

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See detailEcosystem services in mixed forests and monocultures: comparing stakeholders’ perceptions and scientific knowledge
Carnol, Monique ULg; Branquart, Etienne; Muys, Bart et al

Conference (2010, March)

This study examines the common ground between current scientific knowledge and stakeholders’ perception of ecosystem services in mixed forests versus monocultures. An enquiry was performed within the ... [more ▼]

This study examines the common ground between current scientific knowledge and stakeholders’ perception of ecosystem services in mixed forests versus monocultures. An enquiry was performed within the frame of the project FORBIO aiming at the ‘Assessment of the effects of tree species BIOdiversity on FORest ecosystem functioning’ (http://forbio.biodiversity.be). The objective of this enquiry was to confront the perception of the influence of mixed species stands on ecosystem services in Belgium with actual scientific knowledge. The target groups were forest managers, users and scientists. As a general frame for the questionnaire, the ‘Millenium Ecosystem Assessment’, assessing the consequences of ecosystem change for human well-being, was selected. Respondents were asked to express their degree of agreement with statements related to the provisioning (production/quality, financial return), supporting (biodiversity, nutrient cycling, resistance), regulating (climate, air, soil, water) and cultural (aesthetics, recreation) ecosystem services, comparing mixed species to pure stands. Other questions addressed management objectives and the general profile of participants. The web-based questionnaires (SurveyMonkey) were established in Flemish and in French and invitations to respond were distributed by e-mail among key contact persons of forestry/nature associations, forest managers and scientists. After one month, a total of 142 and 228 responses were collected for the questionnaire in Flemish and in French, respectively. In this paper, we summarize main results by analyzing the profile of respondents and describing their perception of forest ecosystem services. Through the confrontation of this perception with the current scientific knowledge and through the identification of established scientific facts unknown to the general public, we identify gaps in scientific knowledge and ways of improving communication between scientists and managers. [less ▲]

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See detailDes alternatives aux plants invasives: la prévention commence dans nos jardins!
Halford, Mathieu ULg; Vanderhoeven, Sonia; Heemers, Leen et al

Learning material (2010)

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See detailAssessment of the effects of tree species diversity on forest biodiversity and ecosystem functioning (FORBIO) - Final Report
Verheyen, Kris; Carnol, Monique ULg; Branquart, Etienne et al

Report (2010)

Forests are biodiversity hotspots worldwide with 70% of terrestrial biodiversity being included in forested landscapes. However, deforestation, forest degradation and fragmentation lead to an increasing ... [more ▼]

Forests are biodiversity hotspots worldwide with 70% of terrestrial biodiversity being included in forested landscapes. However, deforestation, forest degradation and fragmentation lead to an increasing rate of species extinctions. Hence, predicting the consequences of changes in species numbers, in distribution patterns of taxa, and of shifts in dominance, has become a major challenge for community and ecosystem ecology. However, until now the relationships between biodiversity and ecosystem functioning in forests have been largely underexplored Therefore, the overall aims of the BELSPO cluster project FORBIO are: to review, synthesize and disseminate existing knowledge about the benefits and drawbacks of mixed stands vs monocultures (WP1); and to establish a highly innovative, large-scaled forest biodiversity experiment to evaluate the impact of increasing tree diversity on forest ecosystem functioning (WP2). To achieve the first objective, a so-called ‘white paper’ has been compiled by the FORBIO team members which has been published in Dutch as a special issue of the BosRevue and in French as a special issue of Forêt Wallone. Among stakeholders, many different opinions exist about the functioning of mixed forests and therefore the scientific evidence was confronted with stakeholder perceptions on ecosystem services in mixed forests compared to monocultures. The principal outcome was that stakeholders appear to have quite strong opinions on the functioning of mixed vs monoculture stands, whereas the review of the scientific literature highlighted the lack of specific information on forest ecosystem services in mixed forests compared to monocultures, in particular from studies where confounding factors can be eliminated or accounted for. The second objective was met by establishing two large-scaled tree diversity experiments in Zedelgem (Flanders) and Gedinne (Wallonia). Based on a state-of-the-art experimental design, 32 810 and 33 304 trees of five different species were planted in 42 and 44 experimental plots in Zedelgem and Gedinne, respectively. A third experiment with a similar design will be established in Hecthel-Eksel (Flanders) in 2011. FORBIO’s short-term contributions to sustainable development are mainly related to the fact that the project has introduced the state-of-the-art concepts and empirical support on the various relationships between biodiversity and ecosystem functioning to a large audience of forest owners, managers, users and scientists in Belgium. In the long-run, FORBIO will significantly contribute to a better understanding of the importance of tree species diversity for the functioning of forest ecosystems and the ecosystem services that they provide thanks to the establishment of the two (and soon three) large-scaled tree diversity experiments. Furthermore, the experiments, embedded in the worldwide TreeDivNetwork, will most likely continue to act as an attractor for researchers from Belgium and abroad. [less ▲]

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See detailEcosystem services in mixed forests and monocultures: comparing stakeholders’ perceptions and scientific knowledge
Carnol, Monique ULg; Branquart, Etienne; Muys, Bart et al

in Book of Abstacts, IUFRO 7.01 Conference: Adaptation of Forest Ecosystems to Air Pollution and Climate Change, Antalya 2010 (2010)

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See detailEditorial : Les invasions biologiques ... appréhender la démesure
Vanderhoeven, Sonia ULg; Branquart, Etienne; Mahy, Grégory ULg

in Parcs & Réserves (2009), 3

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See detailISEIA, a Belgian non-native species assessment protocol
Branquart, Etienne; Verreyken, Hugo; Vanderhoeven, Sonia ULg et al

in Seghers; Branquart (Eds.) Science Facing Aliens Proceedings of a Scientific Meeting onInvasive Alien Species (2009)

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See detailLes invasions biologiques
Vanderhoeven, Sonia ULg; Branquart, Etienne; Grégoire, Jean-Claude et al

in Forêt Wallonne (2007), 89

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See detailLes espèces exotiques envahissantes : dossier scientifique
Vanderhoeven, Sonia ULg; Branquart, Etienne; Grégoire Jean-Claude et al

Report (2007)

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See detailLes espèces exotiques envahissantes
Vanderhoeven, Sonia ULg; Branquart, Etienne

in Rapport analytique sur l'Etat de l'Environnement wallon 2006-2007 (2007)

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