References of "Vermeulen, Cédric"
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See detailImportance de Coula edulis Baill. pour les populations du Sud-Est du Gabon: niveaux de prélèvement et potentiel économique de l’espèce
Moupela, Christian; Vermeulen, Cédric ULg; Doucet, Jean-Louis ULg et al

in Tropicultura (2014), 32(1), 37-45

Coula edulis is a non-timber forest tree species that provides edible fruits for local people. However, its economical importance has never been quantified. The present study aimed to identify the fate of ... [more ▼]

Coula edulis is a non-timber forest tree species that provides edible fruits for local people. However, its economical importance has never been quantified. The present study aimed to identify the fate of stocks of harvested C. edulis fruits in Gabonese villages, emphasizing the social impact and economic income generated by this activity. Our investigations revealed that C. edulis fruits are predominantly utilized for own subsistence, since trading proportion concerned less than 20% of collected fruits. The average income from trade during the harvest period (two months) varied from € 1.7 to € 3.3 per household, depending on the proximity of the market (local or urban). The economical potential of C. edulis fruits could be improved if a sustainable production strategy through domestication processes and agroforestry practices was developed. Such a strategy may also contribute to the increase of the local demand of C. edulis fruits, assuming that a better diffusion was also carried out. [less ▲]

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See detailEtat des lieux et perspectives de la foresterie communautaire au Gabon
Meunier, Quentin; Boldrini, Sylvie; Vermeulen, Cédric ULg

Conference (2013, December 06)

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See detailProjet "Partenariats pour le Développement des Forêts Communautaires" (PDFC). Présentation des résultats et des leçons apprises.
Meunier, Quentin; Julve Larrubia, Cecilia; Federspiel, Michèle et al

Conference given outside the academic context (2013)

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See detailPreliminary description of the diet of Hippopotamus amphibius L. in Loango National Park (Gabon)
Michez, Adrien ULg; Doucet, Jean-Louis ULg; Dendocker, Nicolas et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 580-583

Due to the paucity of suitable habitat, hippos are very rare in the Congo Bassin. Compared to East-African populations, Central African populations of hippos have been less studied. Information found in ... [more ▼]

Due to the paucity of suitable habitat, hippos are very rare in the Congo Bassin. Compared to East-African populations, Central African populations of hippos have been less studied. Information found in the literature regarding the animal’s basic ecology is limited. This study focuses on the description of the diet of an isolated hippo population in Loango National Park (Gabon), comparing faecal analysis with a reference collection ofherbaceous species from the savannas. The effectiveness of using faecal analysis versus using the floristic description of hippos’ pastures was demonstrated. The most frequent herbaceous species identified in faeces samples were Paspalum vaginatum, Axonopus compressus, Stenotaphrum secundatum (Poaceae) and Desmodium triflorum (Fabaceae). The voluntary consumption of a dicotyledonous species (Desmodium triflorum) is novel for this species. [less ▲]

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See detailForêts communautaires camerounaises et Plan d’action « Forest Law Enforcement, Governance and Trade » (FLEGT) : quel prix pour la légalité ?
Julve, Cécilia; Eckebil, Tabi Pamela; Nzoyem Saha, Nadège et al

in Bois et Forêts des Tropiques (2013), 317(3), 71-80

Illegal logging is a threat to the world’s tropical forests. To act against overexploitation of timber, the European Union has set up the Forest Law Enforcement, Governance and Trade action plan (FLEGT ... [more ▼]

Illegal logging is a threat to the world’s tropical forests. To act against overexploitation of timber, the European Union has set up the Forest Law Enforcement, Governance and Trade action plan (FLEGT), which opened the Voluntary Partnership Agreement (VPA) negotiating agenda with Cameroon. In 2010, the two parties signed the VPA, committing Cameroon to ensure the legality of timber from all logging concessions sold on external and domestic markets. Community forests (CF) were included in the agreement and must therefore ensure the legality of their timber production. To do that, a specific legality grid has been developed. This was tested in half of active community forests in Cameroon to analyse any gaps between activities as practiced in the field and the legality criteria set out in the legality grid. The result show that no CF fully complied with this grid. The study identified obstacles due to complex procedures and to the excessive costs of compliance. Some criteria not currently met could be complied with through community capacity-building and by amending certain regulations. Under these conditions, community forests could become a source of legal supplies at least for the domestic timber market. [less ▲]

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See detailProjet MAKALA "Gérer durablement la ressource bois-énergie" - Huitième rapport narratif - Fin de projet
Marien, Jean-Noël; Schure, Jolien; Dubiez, Emilien et al

Report (2013)

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See detailDistribution assessment of endangered Lepilemur in northwestern Madagascar
Wilmet, Leslie ULg; Vermeulen, Cédric ULg; Beudels-Jamar, Roseline

Scientific conference (2013, October 21)

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See detailAerial surveys using an Unmanned Aerial System (UAS): comparison of different methods for estimating the surface area of sampling strips
Lisein, Jonathan ULg; Linchant, Julie ULg; Lejeune, Philippe ULg et al

in Tropical Conservation Science (2013), 6(4), 506-520

Conservation of natural ecosystems requires regular monitoring of biodiversity, including the estimation of wildlife density. Recently, unmanned aerial systems (UAS) have become more available for ... [more ▼]

Conservation of natural ecosystems requires regular monitoring of biodiversity, including the estimation of wildlife density. Recently, unmanned aerial systems (UAS) have become more available for numerous civilian applications. The use of small drones for wildlife surveys as a surrogate for manned aerial surveys is becoming increasingly attractive and has already been implemented with some success. This raises the question of how to process UAS imagery in order to determine the surface area of sampling strips within an acceptable confidence level. For the purpose of wildlife surveys, the estimation of sampling strip surface area needs to be both accurate and quick, and easy to implement. As GPS and an inertial measurement units are commonly integrated within unmanned aircraft platforms, two methods of direct georeferencing were compared here. On the one hand, we used the image footprint projection (IFP) method, which utilizes collinearity equations on each image individually. On the other hand, the Structure from Motion (SfM) technique was used for block orientation and georeferencing. These two methods were compared on eight sampling strips. An absolute orientation of the strip was determined by indirect georeferencing using ground control points. This absolute orientation was considered as the reference and was used for validating the other two methods. The IFP method was demonstrated to be the most accurate and the easiest to implement. It was also found to be less demanding in terms of image quality and overlap. However, even though a flat landscape is the type most widely encountered in wildlife surveys in Africa, we recommend estimating IFP sensitivity at an accentuation of the relief. [less ▲]

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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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