References of "Vermeulen, Cédric"
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See detailLettre d'information trimestrielle du projet DACEFI 2 - Retour sur l'attribution des premières forêts communautaires du Gabon
Meunier, Quentin; Moumbogou, Carl; Morin, Amélie et al

E-print/Working paper (2013)

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See detailUsing drones to count the elephants: a new approach of wildlife inventories
Linchant, Julie ULg; Vermeulen, Cédric ULg; Lisein, Jonathan ULg et al

Conference (2013, August 29)

The use of UASs (Unmanned Aerial Systems) in wildlife survey is still recent but the fast development of this technology shows great possibilities and it could soon become an inevitable tool in wildlife ... [more ▼]

The use of UASs (Unmanned Aerial Systems) in wildlife survey is still recent but the fast development of this technology shows great possibilities and it could soon become an inevitable tool in wildlife management. The purpose of this study was to test the feasibility of inventories by UAS to survey large mammals in the Nazinga Game Ranch in the south of Burkina Faso. The Gatewing X100TM equipped with a Ricoh GR III camera was used to test the animal reaction as it passed, and their visibility on the images. A set of more than 7000 images was collected and observations revealed that only elephants (Loxodonta africana) were easily visible while medium and small sized mammals were not. At a height of 100 m the easy observation of elephant allows experts to enumerate them on images and no reaction was recorded as the UAS passed. We therefore implemented an aerial strip sample count along transects used for the annual wildlife foot count. A total of 34 elephants has been recorded on 4 transects, each overflown twice. The elephant density was estimated at 2.47 elephants/km2 with a coefficient of variation (CV%) of 36.10 %. UAS inventory of elephants is promising but improvements need to be done. The main drawback of our UAS was its autonomy. If we wish to replace manned aircraft survey of large areas (about 1000 km of transect per day vs 40 km for our UAS), increased endurance of small UAS is a requirement and the monitoring strategy should be adapted according to the sampling plan. Also, the UAS is as expensive as a second-hand light aircraft. However the logistic and flight implementation are easier, the running costs are lower and its use is safer. With technological evolution making civil UASs more efficient, they will be able to compete with light aircrafts for aerial wildlife surveys. [less ▲]

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See detailSpecies richness and speciation in the genus Lepilemur in northwestern Madagascar
Wilmet, Leslie ULg; Vermeulen, Cédric ULg; Beudels-Jamar, Roseline et al

Conference (2013, August 05)

Sportive lemurs of the genus Lepilemur are small, nocturnal folivorous lemurs that are exclusively arboreal and generally have small distribution ranges. Owing to these characteristics, they are ... [more ▼]

Sportive lemurs of the genus Lepilemur are small, nocturnal folivorous lemurs that are exclusively arboreal and generally have small distribution ranges. Owing to these characteristics, they are particularly negatively affected by deforestation and habitat fragmentation, which is reflected by the recent uplisting of many of the 26 Lepilemur species into one of the threatened categories of the IUCN Red List. The main aim of this study is to understand the evolutionary mechanisms underlying species richness and speciation processes of the genus Lepilemur in northwestern Madagascar, and to test the predictions of the Inter-River-System biogeographic model of lemur distribution patterns proposed by Olivieri et al. (2007). This study focuses particularly on three Lepilemur taxa: L. sahamalazensis, L. dorsalis and L. mittermeieri, which have their distribution ranges in the northwestern regions of Sofia and Diana. The objectives are to determine their exact distributions, currently unknown; to assess the allopatry or parapatry for L. dorsalis and L. mittermeieri; and to explain the barrier between these two taxa if it exists. A second fundamental aspect of the project consists in the development of noninvasive tools, based on species-specificity of bio-acoustic structures, which will allow species identification in the field. This paper discusses the results from a two-month preliminary field season, conducted from 1st April to 31st May 2013 in order to explore the mainland forests located between the Andranomalaza (Maetsamalaza) and Maevarano rivers. We established the presence/absence of Lepilemur in different forest fragments of this poorly-known area and collected information about land use classes and land use change using remote sensing techniques. [less ▲]

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See detailPartenariats pour le Développement des Forêts Communautaires (PDFC). Rapport semestriel Janvier – Juin 2013.
Julve Larrubia, Cecilia; Federspiel, Michèle; Vermeulen, Cédric ULg

Report (2013)

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See detailImpliquer les premiers concernés : la gestion participative des milieux anthropisés
Vermeulen, Cédric ULg

Conference (2013, May)

Comment faire en sorte d'associer les acteurs et futurs utilisateurs de la recherche? L'exemple des maquettes interactives à travers différents projets de foresterie sociale en Afrique

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See detailEnjeux autour des forêts congolaises
Vermeulen, Cédric ULg

Conference (2013, April 19)

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See detailLes forêts communautaires, c'est aussi une histoire de femmes
Meunier, Quentin; Boldrini, Sylvie ULg; Morin, Amélie et al

Learning material (2013)

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See detailLa superposition des permis forestiers, des permis miniers et des futures forêts communautaires
Morin, Amélie; Moumbogou, Carl; Meunier, Quentin et al

E-print/Working paper (2013)

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See detailLes nouvelles dispositions légales pour la récupération de bois abandonnés
Meunier, Quentin; Moumbogou, Carl; Vermeulen, Cédric ULg

E-print/Working paper (2013)

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See detailLa maquette interactive, un outil novateur de participation
Larzilière, Adélaïde; Vermeulen, Cédric ULg; Dubiez, Emilien et al

in Bois et Forêts des Tropiques (2013), 315(1), 21-28

Henceforth, timber extraction to supply cities with fuelwood has become a major cause of deforestation in Central Africa. In the Democratic Republic of Congo, wood accounts for 90% of domestic fuel demand ... [more ▼]

Henceforth, timber extraction to supply cities with fuelwood has become a major cause of deforestation in Central Africa. In the Democratic Republic of Congo, wood accounts for 90% of domestic fuel demand and resources are increasingly over-exploited. This study addresses the issue of securing sustainable fuelwood supplies for the city of Kinshasa through sustainable management of degraded peri-urban forests in village lands, which are the main sources of supply. Management can only become sustainable with the participation of the main players involved, which are the village communities themselves. The question of participation focused primarily on taking all opinions into consideration in decisionmaking. During the design and negotiation phases for the implementation of simple management plans, a novel means of facilitation was developed in the form of an interactive scale model. This is effectively a modular tool for mapping in relief, made up of painted wooden elements that are used to create a miniature scale model of the village and its lands. The kit includes vignettes illustrating the different issues at stake in the negotiations. These models are very easy to use, by the village communities as well as by the project agents, and have not only greatly contributed to the quality and intensity of communication but also stimulated constructive thinking. Their effectiveness is nevertheless dependent on a sound prior understanding of the village community and its internal issues. As well as a simple tool to aid decision-making, it also addresses the question of real knowledge sharing, which is a key factor in the development of coherent, realistic and equitable agreements on management. [less ▲]

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See detailEvolution de la ressource ligneuse et des stocks de carbone dans le bassin d’approvisionnement en bois énergie de la ville de Kinshasa (RDC)
Dubiez, Emilien; Gond, Valery; Peltier, Régis et al

Conference (2013, April)

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See detailEvolution de la ressource ligneuse et des stocks de carbone
Marien, Jean-Noel; Bisiaux, F.; Boulogne, M. et al

E-print/Working paper (2013)

Entre 2010 et 2012, une étude complexe a été menée pour apporter des éléments qualitatifs et quantitatifs fiables sur l’évolution de la ressource ligneuse sur le bassin d’approvisionnement en bois énergie ... [more ▼]

Entre 2010 et 2012, une étude complexe a été menée pour apporter des éléments qualitatifs et quantitatifs fiables sur l’évolution de la ressource ligneuse sur le bassin d’approvisionnement en bois énergie de Kinshasa. Cette étude pluridisciplinaire (Figure 1) a mobilisé l’analyse d’images satellites, la cartographie, les inventaires forestiers, la dendrométrie, des études sur la carbonisation traditionnelle et la compréhension des dynamiques sociales et économiques des zones d’étude. En plus d’analyser l’évolution de la couverture forestière sur la période de suivi (1984-2012), ce travail a permis de quantifier pour la première fois, sur des bases scientifiques et des méthodologies solides, les stocks de biomasse aérienne et de carbone ainsi que leur évolution. Après calage avec les standards REDD+, ces informations devraient se révéler très utiles dans la perspective des futurs projets REDD+ en Afrique centrale. Cette étude couvre une superficie de 900 000 ha située sur le plateau Batéké et au Bas Congo. La zone d’étude concerne près de 80% de l’approvisionnement total en bois énergie de l’agglomération de Kinshasa (Figure 2). [less ▲]

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See detailLettre d’information trimestrielle du projet Développement d’Alternatives Communautaires à l’Exploitation Forestière Illégale
Boldrini, Sylvie; Moumbogou; Meunier, Quentin et al

E-print/Working paper (2013)

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See detailModeling the mutation of socio-ecosystems in Central Africa
Gillet, Pauline ULg; Vermeulen, Cédric ULg

Poster (2013, February)

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See detailUnmanned aerial survey of elephants
Vermeulen, Cédric ULg; Lejeune, Philippe ULg; Lisein, Jonathan ULg et al

in PLoS ONE (2013), 8(2),

The use of a UAS (Unmanned Aircraft System) was tested to survey large mammals in the Nazinga Game Ranch in the south of Burkina Faso. The Gatewing ×100™ equipped with a Ricoh GR III camera was used to ... [more ▼]

The use of a UAS (Unmanned Aircraft System) was tested to survey large mammals in the Nazinga Game Ranch in the south of Burkina Faso. The Gatewing ×100™ equipped with a Ricoh GR III camera was used to test animal reaction as the UAS passed, and visibility on the images. No reaction was recorded as the UAS passed at a height of 100 m. Observations, made on a set of more than 7000 images, revealed that only elephants (Loxodonta africana) were easily visible while medium and small sized mammals were not. The easy observation of elephants allows experts to enumerate them on images acquired at a height of 100 m. We, therefore, implemented an aerial strip sample count along transects used for the annual wildlife foot count. A total of 34 elephants were recorded on 4 transects, each overflown twice. The elephant density was estimated at 2.47 elephants/km2 with a coefficient of variation (CV%) of 36.10%. The main drawback of our UAS was its low autonomy (45 min). Increased endurance of small UAS is required to replace manned aircraft survey of large areas (about 1000 km of transect per day vs 40 km for our UAS). The monitoring strategy should be adapted according to the sampling plan. Also, the UAS is as expensive as a second-hand light aircraft. However the logistic and flight implementation are easier, the running costs are lower and its use is safer. Technological evolution will make civil UAS more efficient, allowing them to compete with light aircraft for aerial wildlife surveys. [less ▲]

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See detailNature+ asbl - Rapport d'activités 2012
Federspiel, Michèle; Doucet, Jean-Louis ULg; Daïnou, Kasso ULg et al

Report (2013)

En 2012, Nature+ a rencontré ses missions, notamment : en mettant en oeuvre trois projets de foresterie communautaire financés par des bailleurs internationaux ; en participant à la gestion durable de ... [more ▼]

En 2012, Nature+ a rencontré ses missions, notamment : en mettant en oeuvre trois projets de foresterie communautaire financés par des bailleurs internationaux ; en participant à la gestion durable de près de 2,7 millions d’hectares de forêts denses humides tropicales grâce à nos collaborations avec des sociétés forestières engagées dans les processus de certification FSC ; en accueillant dans nos divers projets 10 étudiants en fin de cursus universitaire ainsi que 11 doctorants. Huit universités différentes ont ainsi reçu un appui administratif, technique et scientifique de Nature+ ; en attribuant sa 2eme bourse de formation à un chercheur congolais. [less ▲]

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See detailEssais de propagation par semis et marcottage aérien de Coula edulis Baill. et perspectives pour sa domestication
Moupela, Christian; Doucet, Jean-Louis ULg; Daïnou, Kasso ULg et al

in Bois et Forêts des Tropiques (2013), 318(4), 3-13

Le noisetier d’Afrique, Coula edulis Baill. Olacaceae, est un arbre des forêts denses humides africaines. Il produit des graines d’une grande valeur nutritive qui sont régulièrement récoltées et ... [more ▼]

Le noisetier d’Afrique, Coula edulis Baill. Olacaceae, est un arbre des forêts denses humides africaines. Il produit des graines d’une grande valeur nutritive qui sont régulièrement récoltées et commercialisées par les populations d’Afrique centrale et de l’Ouest. Cependant, le manque d’informations relatives aux techniques de multiplication de l’espèce est la principale contrainte à sa domestication et à son intégration dans les systèmes agroforestiers locaux. L’étude, conduite parallèlement en pépinière et en milieu naturel, vise à mieux caractériser la germination de C. edulis et à déterminer ses aptitudes au marcottage aérien. Les résultats obtenus indiquent que la germination de C. edulis est très lente et échelonnée avec des taux de levée très faibles, voire nuls. De plus, les prétraitements appliqués aux graines se sont révélés inefficaces pour améliorer la vitesse et le taux de levée des semences. En revanche, le marcottage aérien permet de produire des plants de C. edulis d’une vigueur bien supérieure et dans un délai plus court que les semis en pépinière. Les résultats préliminaires du marcottage aérien sont prometteurs et ouvrent des perspectives intéressantes pour la multiplication et la domestication de l’espèce. L’intégration de Coula edulis dans les systèmes agroforestiers des plants issus du marcottage aérien est donc envisageable. [less ▲]

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