References of "Jacquemin, Floriane"
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See detailSpatio-temporal floral resource shifts in Belgium
Jacquemin, Floriane ULiege; Violle, Cyrille; Coppee, Thomas ULiege et al

Poster (2018, September 20)

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See detailA multi-stressor analysis of spatio-temporal shifts in Belgian bee community
Rollin, Orianne ULiege; Michez, Denis; Jacquemin, Floriane ULiege et al

Poster (2018, September 20)

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See detailThe role of bees in interaction networks with plants as a conservation argument
Jacquemin, Floriane ULiege; Violle, Cyrille; Munoz, François et al

Conference (2018, September 18)

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See detailCompte rendu des captures réalisées lors de la formation européenne à la détermination des abeilles (COST Super-B Project) dans le Parc National des Calanques
Geslin, Benoît; Vereecken, Nicolas J.; Roberts, Stuart et al

in Osmia : la Revue des Apidologues (2018), 7

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See detailWalloon researchers on ecosystem services... What's up?
Maebe, Laura ULiege; Authelet, Manon ULiege; Breyne, Johanna ULiege et al

Poster (2017, December 12)

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See detailMapping the dependency of crops on pollinators in Belgium
Jacquemin, Floriane ULiege; Violle, Cyrille; Rasmont, Pierre et al

in One Ecosystem (2017)

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See detailRemoval of acorns of the alien oak Quercus rubra on the ground by scatter-hoarding animals in Belgian forests
Merceron, N. R.; De Langhe, A.; Dubois, Héloïse ULiege et al

in Biotechnologie, Agronomie, Société et Environnement (2017), 21(2), 127-130

Description of the subject. Quercus rubra L. is considered an invasive species in several European countries. However, little is known about its dispersal in the introduced range. Objectives. We ... [more ▼]

Description of the subject. Quercus rubra L. is considered an invasive species in several European countries. However, little is known about its dispersal in the introduced range. Objectives. We investigated the significance of animal dispersal of Q. rubra acorns on the ground by vertebrates in its introduced range, and identified the animal species involved. Method. During two consecutive autumns, the removal of acorns from Q. rubra and from a native oak was assessed weekly in forest sites in Belgium. We used automated detection camera traps to identify the animals that removed acorns. Results. Quercus rubra acorns were removed by wood mice (Apodemus sylvaticus L.), red squirrels (Sciurus vulgaris L.), rats (Rattus sp.), and wild boars (Sus scrofa L.). The two former are scatter-hoarding rodents and can be considered potential dispersers. Conclusions. Dispersal of Q. rubra acorns in Western Europe by scatter-hoarding animals may help the species increasingly colonize forest ecosystems. © 2017, FAC UNIV SCIENCES AGRONOMIQUES GEMBLOUX. All rights reserved. [less ▲]

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See detailRemoval of acorns of the alien oak Quercus rubra on the ground by scatter-hoarding animals in Belgian forests
Merceron, Nastasia; De Langhe, Aurélie; Dubois, héloïse et al

in Biotechnologie, Agronomie, Société et Environnement (2017), 21(2), 127-130

Description of the subject. Quercus rubra L. is considered an invasive species in several European countries. However, little is known about its dispersal in the introduced range. Objectives. We ... [more ▼]

Description of the subject. Quercus rubra L. is considered an invasive species in several European countries. However, little is known about its dispersal in the introduced range. Objectives. We investigated the significance of animal dispersal of Q. rubra acorns on the ground by vertebrates in its introduced range, and identified the animal species involved. Method. During two consecutive autumns, the removal of acorns from Q. rubra and from a native oak was assessed weekly in forest sites in Belgium. We used automated detection camera traps to identify the animals that removed acorns. Results. Quercus rubra acorns were removed by wood mice (Apodemus sylvaticus L.), red quirrels (Sciurus vulgaris L.), rats (Rattus sp.), and wild boars (Sus scrofa L.). The two former are scatter-hoarding rodents and can be considered potential dispersers. Conclusions. Dispersal of Q. rubra acorns in Western Europe by scatter-hoarding animals may help the species increasingly colonize forest ecosystems [less ▲]

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See detailEcosystem services in Wallonie ... What's up?
Maebe, Laura ULiege; Pipart, Nathalie; Dendoncker, Nicolas et al

Poster (2016, December 13)

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See detailNaturalist historical databases help us to better understand plant-bee interactions and their dynamics across space and time
Jacquemin, Floriane ULiege; Folschweiller, Morgane; Drossart, Maxime et al

Poster (2016, December 02)

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 ... [more ▼]

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. [less ▲]

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See detailPlant diversity loss forces shift in ecological strategies for wild bees : Insights from historical time series at a country-wide scale
Jacquemin, Floriane ULiege; Violle, Cyrille; Munoz, François et al

Conference (2016, October 27)

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 ... [more ▼]

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 the interest of compiling opportunistic naturalist databases and systematically informing the host plants on which species are observed. [less ▲]

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See detailEcosystem services in Wallonie ... What's up?
Maebe, Laura ULiege; Nathalie, Pipart; Brogna, Delphine et al

Poster (2016, September 20)

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 ... [more ▼]

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 be presented by means of games, activities, quiz, etc. We hope to stimulate discussions and debates on our methods and results, to foster networking and knowledge exchange. Hereunder, we give a short overview of these projects to give hints on the diversity addressed by our stand. At the Belgian scale, BELBEES, a project funded by BELSPO, aims to identify the factors responsible for the decline of wild bees. Different hypotheses are tested, including the impact of land-use changes and the reduction of floral resources availability at geographical and temporal scales. The results will allow tracking historical community-level changes in pollination service at a biogeographical scale. Such initiative is a step forward in the perspective of ecosystem service mapping. In Wallonia, various projects on ES are underway: Wal-ES, a federating platform between the Walloon administrations and the scientists, aims to create and disseminate decision support tools based on the ecosystem services concept. In order to build the common core for these tools, Wal-ES defines a conceptual framework, an integrated ecosystem services valuation framework and a database regrouping all the information needed to assess ES in Wallonia. This platform helps to conduct a practical application of its integrated ES valuation framework to land planning at a local scale. This application aims to define a methodology for impact assessment of land-consolidation plans based on ES while testing it on a case study covering three municipalities in Wallonia. LIFE IN QUARRIES aims to develop biodiversity and ecosystem services in Walloon active quarries. One of its actions is the assessment and the monitoring of ES provided by a quarry regarding the restoration, maintenance and management of the nature undertaken during the project. BIOECOSYS project is focused on qualitative and quantitative assessment of ecosystem services provided by grasslands according to their management and their territorial context. The field study aims to determine production services under different soils and climatic conditions while the goal of the regional study is the mapping of several ES (production and regulation services). Other projects focus on a more regional or local scale: The first one studies the impact of forest cover on regulating services at the regional scale. This study investigates the impact of forest cover on hydrological services (i.e. water supply, water damage mitigation) in terms of quantity, timing and quality. The methods studying the impact of forest cover on water quality and carbon storage regulation service will be presented as well as the results of the impact of forest cover on the quantity and timing aspects. Secondly, a PhD project is looking at sown wildflower strips in agricultural fields. In the project, it is tested whether increasing the functional diversity of the flower mixtures used in wildflower strips can be a tool to optimize pollination and biodiversity support services. Another PhD research project is underway, willing to explore the relationships between biodiversity, functional diversity and the delivery of ecosystem services (pest control and pollination) in agricultural landscapes. This project aims at identifying the role of landscape and its ecological infrastructures (mainly Agro-Environment Schemes) on the species and functional traits composition of different arthropods assemblages. We will then link these diversity patterns to the provisioning of the ecosystem services of interest. Ongoing work also addresses agricultural practices, by analysing the contribution of agroecological farming systems to the delivery of ecosystem services. This project relies on an integrated valuation including both a biophysical and a social valuation. Focusing on the same fields as the above project, this one attempts to develop an innovative method to assess ecosystem services in agricultural fields by means of unmanned aerial vehicles (drones). [less ▲]

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See detailSAPOLL : A cross-border action plan for wild pollinators
Drossart, Maxime; Folschweiller, Morgane; Jacquemin, Floriane ULiege et al

Poster (2016, February)

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 ... [more ▼]

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 with the actors from Wallonia, Flanders and northern France. This plan is the initiator of actions in favor of pollinators, bringing the necessary scientific, didactic and applied context to citizens, decision-makers, entrepreneurs or enrionmental managers. It is also adapted to the regional context of each area. The action plan, which is co-built with the partners in the cross-border territory. The SAPOLL project also organizes activities that aim to homogenize and share scientific knowledge, awareness-raising experience and naturalistic competences. [less ▲]

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See detailCombining remote sensing and ancillary data to improve species distribution models
Delangre, Jessica ULiege; Radoux, Julien; Jacquemin, Floriane ULiege et al

Poster (2015, May 21)

Correlative distribution models are increasingly used in biological conservation. They often require the compilation of various environmental attributes (climate, topography, land cover,…), which can be ... [more ▼]

Correlative distribution models are increasingly used in biological conservation. They often require the compilation of various environmental attributes (climate, topography, land cover,…), which can be very time-consuming. In the Lifewatch project, a database combining segmentation in homogeneous landscape units (“ecotopes”) and environmental attributes derived from regularly updated remote sensing data (land cover, potential solar energy,…) and other data sources (climate, topography,…) has been designed. Our aim was to assess the usefulness of this database for species distribution modelling and to propose further improvements. The distribution of ten species (four butterflies, three birds, two reptiles and one mammal) was modelled across Wallonia and model performance was assessed by Area Under the ROC Curve using the subsample approach. The models derived from ecotope segmentation and quantitative land cover attributes were compared to those obtained with a corresponding grid and a qualitative land cover database. The usefulness of ancillary data (soil properties, contextual attributes) was assessed to decide which variables should be integrated in the ecotope database. The results allowed us to assess and improve the relevance and accuracy of our database, which is a promising tool for species distribution modellers at the European scale. [less ▲]

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

in Forêt.Nature (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 detailLes forêts anciennes en Wallonie. 2ème partie : Cartographie
Kervyn, Thierry; Jacquemin, Floriane ULiege; Branquart, Etienne et al

in Forêt.Nature (2014), (133), 38-52

Un premier article a démontré que l’identification des forêts anciennes est une étape préalable pour pouvoir leur appliquer un mode de gestion spécifique et protéger le patrimoine qu’elles représentent ... [more ▼]

Un premier article a démontré que l’identification des forêts anciennes est une étape préalable pour pouvoir leur appliquer un mode de gestion spécifique et protéger le patrimoine qu’elles représentent. Cette deuxième partie énumère les sources historiques disponibles en Wallonie, donne un aperçu de l’état d’avancement du travail de numérisation de ces documents mené par le Service Public de Wallonie et en tire quelques informations très surprenantes sur l’évolution spatiale et temporelle des massifs forestiers de Wallonie depuis deux siècles et demi. [less ▲]

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