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See detailWeb-building spiders and blood-feeding flies as prey of the notch-eared bat (Myotis emarginatus)
Kervyn, Thierry; Godin, Marie Céline; Jocqué, Rudy et al

in Belgian Journal of Zoology (2012), 142(1), 59-67

Conservation of the endangered notch-eared bat (M. emarginatus) requires a specific action plan based on precise ecological requirements of this species. The analysis of the diet of three colonies in ... [more ▼]

Conservation of the endangered notch-eared bat (M. emarginatus) requires a specific action plan based on precise ecological requirements of this species. The analysis of the diet of three colonies in southern Belgium revealed: (1) spatial and seasonal variations of the diet; (2) the consumption of web-building spiders (Araneus diadematus, A. triguttatus, Cyclosa conica, Enoplognatha sp., Larinioides patagiatus, Neriene emphana); (3) the predominance of blood-feeding dipterans in the diet (Stomoxys calcitrans and Musca autumnalis). Since the populations of these two ectoparasitic flies are sensitive to the use of antiparasitic drugs, these drugs should be used with caution by farmers and veterinarians in the vicinity of maternity colonies. [less ▲]

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See detailStructure à conserver et aménagement à prévoir pour le conservation de la loutre en Région wallonne
Schockert, Vincianne ULg; Libois, Roland ULg

Learning material (2012)

La loutre d’Europe est un mammifère protégé devenu rare en Région wallonne. Autrefois, l’espèce était pourtant présente sur l’ensemble des réseaux hydrographiques du pays. Très exigeante par rapport à la ... [more ▼]

La loutre d’Europe est un mammifère protégé devenu rare en Région wallonne. Autrefois, l’espèce était pourtant présente sur l’ensemble des réseaux hydrographiques du pays. Très exigeante par rapport à la qualité de son habitat et de sa nourriture, la loutre constitue un excellent témoin de l’état de santé de nos rivières. Mais si la population de loutre d’Europe paraît chez nous aujourd’hui au bord de l’extinction, on constate que d’autres populations européennes sont en pleine progression, notamment à partir de la France (Massif central) et de l’Allemagne. Elle gagne du terrain chaque année, amenuisant la distance qui nous sépare des autres populations européennes. Ce guide propose l’identification des abris potentiels pour la loutre ainsi que des aménagements des cours d’eau propices à son retour, puisqu’on pourrait l’espérer, à partir des populations européennes, d’ici 15 ou 20 ans. [less ▲]

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See detailClé de détermination des restes crâniens de poissons collectés sur les rives nord du lac Tanganyika et de ses environs
NASASAGARE, Régine Pacis; Libois, Roland ULg

in Bulletin scientifique de l'Institut national pour l'environnement et la conservation de la nature (2012), 10

Lake Tanganyika is very rich in fish species. It is exploited by fishermen and by fish-eating birds often seen as competitors of man. An osteological study was undertaken to establish a methodological ... [more ▼]

Lake Tanganyika is very rich in fish species. It is exploited by fishermen and by fish-eating birds often seen as competitors of man. An osteological study was undertaken to establish a methodological tool as a basis to studying the diet of fish-eating birds. Fish were collected, grouped by family. They were then transported to the laboratory to extract features of the cranial bones of each species or genus. An identification key to these bones has been prepared based on the similarities and differences between these bones. Correlations between the length of bone characteristics and size of fish were calculated. [less ▲]

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See detailPlan loutre 2011-2021 en Wallonie et au Grand-Duché de Luxembourg
Nederlandt, Nicolas; Schmidt, Gérard; Leclercq, Christine et al

Report (2011)

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See detailMigration et déplacements du martin pêcheur Alcedo atthis en Europe
Libois, Roland ULg

in Aves (2011), 48(2), 65-86

Previous publications on the migration and movements of kingfisher s have been limitid to a few countries; there has not been any previous synthesis of the data from the whole of Europe. The present study ... [more ▼]

Previous publications on the migration and movements of kingfisher s have been limitid to a few countries; there has not been any previous synthesis of the data from the whole of Europe. The present study,based on the Euring database, related to the movements of 5991 ringed and recaptured birds. The data were classified according to the status of each individual (pulli, juvenile or adult) as noted at ringing, the time of year (autumn and winter; spring; breeding period), and general geographical area. In the first autumn and winter, half of the pulli remained in the nesting area. Those that did move (between 25 and 250 km) dispersed approximately equally in all directions. The tendency to migrate was most marked among birds born in Sweden. The tendency decreases progressively in the sequence North Europe/Central Europe/ North Western Europe, where only 5 % of birds migrate, moving in a southwesterly direction. Juvenile birds are less mobile (approximately 80 %) than the pulli. Those which do move have the same pattern of dispersion as the pulli. The tendency to migrate is especially marked in North Europe, and is almost non existent in Gread Britain and in the Mediterrannean peninsulas. In springtime, most birds are already nesting, but some migrate towards the N or NE, and some are delayed in their overwintering location. During the nesting period, the ex pulli rarely take over the burrow where they were born, while the majority of juveniles tend to remain in the area where they were first captured. Some adults do change area ot the time, this tendeny being more accentuated among females, while male birds appear to be more attached to their home territory. In subsequent autumns the patterns of dispersion, of distance and of direction of ex juveniles and ex pulli are indistinguishable from those of the first automn. In Sweden the adults migrate, whereas elswhere adults have similar behaviour as juvenile birds; but adults are even more sedentary. [less ▲]

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See detailAnalyse des potentialités d'accueil du lynx boréal (Lynx lynx) dans l'est de la province de Liège (Belgique)
Thiry, Violaine; Schockert, Vincianne ULg; Libois, Roland ULg et al

in Rosoux, René; de Bellefroid, Marie des Neiges; Baillon, Jacques (Eds.) et al Lynx... le grand retour ? (2011)

The fist lynx were seen in eastern Belgium at the end of the 1990s. Since then, both sightings and tracks have been recorded there and in the Ardenne (south east Belgium). Whether this presence indicates ... [more ▼]

The fist lynx were seen in eastern Belgium at the end of the 1990s. Since then, both sightings and tracks have been recorded there and in the Ardenne (south east Belgium). Whether this presence indicates a spontaneous return of individuals deriving from the population reintroduced in Germany or results from illicit releases, it raises the question of the suitability and the carrying capacity of habitats in an area of dense human occupation. Using two software programs, a mapping model to assess habitat characterization, drawn from relevant criteria for this species, was tested to estimate the potential host of the study area, via the determination of areas of suitable habitats, and the dispersion potential of the species, through the identification of the most viable dispersal corridors. The findings of the study (multi criteria analysis of potential host of habitats, identification of corridors of lowest cost, estimation of the potential population...), compiled on the basis mapping model and simulations, suggest that a return of the lynx in Wallonia may be sustainable if supported and managed wisly by the regional administrative services. [less ▲]

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See detail19. Oiseaux
Lougbegnon, Toussaint; Libois, Roland ULg

in Neuenschwander, Peter; Sinsin, Brice; Goergen, Georg (Eds.) Protection de la nature en Afrique de l'Ouest: une liste rouge pour le Bénin (2011)

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See detailPremière approche du choix des proies et de la stratégie alimentaire chez le balbuzard pêcheur en France continentale
Rosoux, René; Libois, Roland ULg; Schweyer, Jean Baptiste et al

in Recherches Naturalistes en Région Centre (2010), 18

La population nicheuse de balbuzards pêcheurs en région Centre, principalement établie en forêt d'Orléans et en Sologne, a fait l'objet d'une prémière étude sur le choix des proies et la stratégie ... [more ▼]

La population nicheuse de balbuzards pêcheurs en région Centre, principalement établie en forêt d'Orléans et en Sologne, a fait l'objet d'une prémière étude sur le choix des proies et la stratégie alimentaire. L'analyse a été menée sur un échantillon d'une quinzaine de couples. Les premiers résultats montrent que les rapaces consomment une large gamme de poissons, évaluéenà plus de 20 espèces. Quels que soient la méthode utilisée et le nid étudié, ce sont les cyprinidés qui constituent la grande majorité des proies. En période d'étiage, les espèces de poisson de fond viennent également enrichir le régime alimentaire en raison de la faible profondeur de l'eau. [less ▲]

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See detailBase de données mortalité et étude du régime alimentaire (Balbuzard)
Rosoux, René; Libois, Roland ULg; Schweyer, Jean Baptiste

Learning material (2010)

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See detailÉtude du régime et de la sélectivité alimentaire du grand cormoran (Phalacrocorax carbo) sur le lac Kivu (R.D. Congo)
Musema Bahizire, Altor; Libois, Roland ULg

in Annales des Sciences et Sciences Appliquées de l'Université Officielle de Bukavu (2010), 2

This contribution intends to give a preliminary view of the diet of the Cormorant on the lake Kivu. Fifty pellets were collected from August to October 2004 in a colony situated in Bukavu and analysed. A ... [more ▼]

This contribution intends to give a preliminary view of the diet of the Cormorant on the lake Kivu. Fifty pellets were collected from August to October 2004 in a colony situated in Bukavu and analysed. A reference collection of fish skull bones was also prepared and correlations between the length of some characteristic bones and the total length of the fish were computed, allowing the assessment of the length of each prey identified in the pellets. The cormorants eat mainly Haplochromis species (either in relative abundance or occurrences) but the biomass intake is dominated by the genera Tilapia and Oreochromis (together: 65 %). The importance of catfish (Clarias sp.) or barbels (Barbus sp.) is very small (< 4%, whatever the expression of the results). The sardine Limnothrissa miodon appears in 1 out of 5 pellets but its contribution in terms of biomass is negligible. Comparing the diet with the available resources, it appears that the cormorant is an opportunistic predator, taking almost all the available taxa (except Raiamas moorii) without selecting a particular one, except the big cichlids (genus Tilapia and Oreochromis). However, more than 90% of its preys are small fish measuring less than 10 cm. [less ▲]

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See detailEtat de la biodiversité: les mammifères
Schockert, Vincianne ULg; Libois, Roland ULg

Learning material (2010)

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See detailMartin pêcheur d'Europe, Alcedo atthis
Dehem, Christophe; Hallet, Catherine; Libois, Roland ULg

in Jacob, Jean Paul; Dehem, Christophe; Burnel, André (Eds.) et al Atlas des oiseaux nicheurs de Wallonie 2001/ 2007 (2010)

The kingfisher is widespread in Wallonia but is missing locally in middle Belgium and in higher Ardenne. The field prospection for the atlas took place in a favorable climatic context; the current ... [more ▼]

The kingfisher is widespread in Wallonia but is missing locally in middle Belgium and in higher Ardenne. The field prospection for the atlas took place in a favorable climatic context; the current population, estimated at 450 650 pairs, reflects probably the saturation of the habitat. The highest densities are found along large rivers, with important fishing ressources and numerous nesting sites (Lesse, Ourthe, Semois, Viroin). The limiting fator seems to be the lack of nesting sites. [less ▲]

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See detailEtude de la statégie alimentaire du balbuzard pêcheur
Rosoux, René; Libois, Roland ULg; Schweyer, Jean Baptiste

Learning material (2010)

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See detailDe la cerise au sanglier: contribution à l'étude du régime alimentaire de la fouine, Martes foina (Erxleben 1777) en Belgique
Lambinet, Clotilde ULg; Libois, Roland ULg

in Naturalistes Belges (Les) (2010), 91

The study of the diet of an animal contributes to a better knowledge of its ecology. The present study consists of the analysis of five faeces samples collected in various environments as well as 26 ... [more ▼]

The study of the diet of an animal contributes to a better knowledge of its ecology. The present study consists of the analysis of five faeces samples collected in various environments as well as 26 stomach contents, to underline the various food resources consumed by the stone marten. The results obtained overlap rather well the data of the literature. Therefore, it allows to strenghten the researches carried out in the bordering countries. The conclusions of the present study are the following ones: the stone marten is an animal polyphagous and non-specialized. Its food spectrum covers as well the animal kingdom as the vegetable one. Furthermore, samples allowed to point out seasonal variations in the diet. Also, net differences are observed between urban and rural environments. Finally, the variety and the relative occurrence of the various elements gathered show how much the stone marten is an opportunistic animal which adapts itself to the environmental resources [less ▲]

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See detailLes commaunautés d'oiseaux locales dans les mosaïques de végétation du sud du Bénin
Lougbégnon, Olou Toussaint; Codjia, J.T.C; Libois, Roland ULg

in Annales des Sciences Agronomiques du Bénin (2009), 12(1), 85-114

We analysed the spatial frequencies of birds and their distributions across three types of habitats (forests, plantations and various fallows) in the vegetation mosaic in the south of Benin from a total ... [more ▼]

We analysed the spatial frequencies of birds and their distributions across three types of habitats (forests, plantations and various fallows) in the vegetation mosaic in the south of Benin from a total of 45 monitoring stations. 167 species belonging to 40 families were inventoried, the forest having 153 species and fallows and plantations having each 99 species. The similarity index of Jaccard showed 44.0% affinity between forests and flantations, 43.1% between forest and fallows, and 75.5% between forest and fallows. The analysis in main composent and ascending hierachical classification identified three local bird communities, namely for forests, plantations and fallows, ubiquitous in three areas and, respectively, aligned according to their need for intact forest or their propensity to tolerate changes in vegetation/ deforstation. [less ▲]

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See detailQuatre siphonaptères (Siphonaptera) nouveaux pour la faune de Belgique
Libois, Roland ULg

in Bulletin de la Société royale belge d'Entomologie (2009), 145

This short note reports the circumstances where four fleas species, not yet publishid in Belgium, where recorded

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See detailA relict bank vole lineage highlights the biogeographic history of the Pyrenean region in Europe
Deffontaine Deurbroeck, Valérie ULg; Ledevin, Ronan; Fontaine, Michaël ULg et al

in Molecular Ecology (2009)

The Pyrenean region exhibits high levels of endemism suggesting a major contribution to the phylogeography of European species. But, to date, the role of the Pyrenees and surrounding areas as a glacial ... [more ▼]

The Pyrenean region exhibits high levels of endemism suggesting a major contribution to the phylogeography of European species. But, to date, the role of the Pyrenees and surrounding areas as a glacial refugium for temperate species remains poorly explored. In the current study, we investigated the biogeographic role of the Pyrenean region through the analyses of genetic polymorphism and morphology of a typical forest-dwelling small mammal, the bank vole (Myodes glareolus). Analyses of the mitochondrial cytochrome b gene and the third upper molar (M(3)) show a complex phylogeographic structure in the Pyrenean region with at least three distinct lineages: the Western European, Spanish and Basque lineages. The Basque lineage in the northwestern (NW) Pyrenees was identified as a new clearly differentiated and geographically localized bank vole lineage in Europe. The average M(3) shape of Basque bank voles suggests morphological differentiation but also restricted genetic exchanges with other populations. Our genetic and morphological results as well as palaeo-environmental and fossils records support the hypothesis of a new glacial refugium in Europe situated in the NW Pyrenees. The permissive microclimatic conditions that prevailed for a long time in this region may have allowed the survival of temperate species, including humans. Moreover, local differentiation around the Pyrenees is favoured by the opportunity for populations to track the shift of the vegetation belt in altitude rather than in latitude. The finding of the Basque lineage is in agreement with the high level of endemic taxa reported in the NW Pyrenees. [less ▲]

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See detailLes mammifères non volants de la commune de Fernelmont
Libois, Roland ULg; Le Proux de la Rivière, Bettina

in Saintenoy Simon, Jacqueline (Ed.) Le patrimoine d'une commune rurale: Fernelmont (2008, March)

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See detailRôle bioindicateur de l'avifaune dans la dynamique ecologique des mosaïques des milieux naturels terrestres du sud Bénin
Lougbegnon, Olou; Codjia, J T C; Libois, Roland ULg

in Revue des sciences de l'environnement Univ. de Lomé (2008), 4

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See detailDiet and food preference of the waterbuck (Kobus ellipsiprymnus defassa) in the Pendjari National Park, Benin
Kassa, Barthélemy; Libois, Roland ULg; Sinsin, Brice

in African Journal of Ecology (2008), 46(3), 303-310

This study investigated composition and selectivity in diet for waterbuck in the Pendjari National Park in northwestern Benin, through the use of micrographic analysis of faecal samples. Three plant ... [more ▼]

This study investigated composition and selectivity in diet for waterbuck in the Pendjari National Park in northwestern Benin, through the use of micrographic analysis of faecal samples. Three plant species (Panicum anabaptistum, Echinochloa stagnina and Andropogon gayanus) were regularly consumed all year round. Meanwhile, three other species (i.e., Hyparrhenia involucrata, Acroceras amplectens and Oryza barthii) are mostly found in its diet during the beginning of the rainy season. During the dry season, long life grasses (>40%) and tree forage (about 35%) were the most dominant life form in the diet. On the contrary at the beginning of the rainy season, annual species (> 50%) were dominant. In conclusion, the waterbuck has a grazer regime when plant species are abundant and a mixed diet during the dry season. Waterbuck’s food niche breath, defined by Hespenheide [Ecology and Evolution of communities. Harvard Univ. Press, 1975], was lower than 1, implying this antelope does not eat all food categories in a proportional way. Shannon diversity index showed that the diet was more diversified during the rainy season and less diversified at the end of the dry season. Based on [Ecology, 64 (1983), 1297] diet selectivity index, waterbuck exerted a positive selection on the major graminaceous species. [less ▲]

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