References of "Libois, Roland"
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See detailOn the fleas and louse (Insecta: Siphonaptera and Anoplura) of the garden dormouse, Eliomys quercinus (L. 1766) in Belgium
Libois, Roland ULg

in Annales de la Société entomologique de France (N.S.) (2016)

More than 3500 fleas, collected in southern Belgium, from 54 garden dormice (Eliomys quercinus) and from 58 nests of the rodent, were examined. Ceratophyllus s. sciurorum seems to be the only regular and ... [more ▼]

More than 3500 fleas, collected in southern Belgium, from 54 garden dormice (Eliomys quercinus) and from 58 nests of the rodent, were examined. Ceratophyllus s. sciurorum seems to be the only regular and abundant flea on the garden dormouse and in its nest whereas Myoxopsylla laverani is quite uncommon (5/31 infested animal and 11/52 infested nests). In comparison, 96 garden dormice were checked in France. M. laverani is present on nearly every infested animal (61/66). Other fleas were also found, some mammal-fleas (Megabothris turbidus, Hystrichopsylla talpae, several Ctenophthalmus spp.) and great numbers of bird-fleas (Ceratophyllus gallinae and Dasypsyllus gallinulae) because the dormouse-nests where the fleas were taken were built on old tit-nests (Parus spp). Finally, Schizophthirus pleurophaeus, a louse, was collected for the first time in Belgium. [less ▲]

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See detailConséquences génétiques et morphologiques des glaciations du Quaternaire : une lignée relique du barbeau (Luciobarbus pallaryi, Cyprinidae) dans le bassin du Guir (Algerie)
Brahimi, Amina; Tarai, Nacer; Benhassane, Abdelkrim et al

in Comptes Rendus Biologies (2016), 339

Climatic variations during the Quaternary period had a considerable impact on landscapes and habitat fragmentation (rivers) in North Africa. These historical events can have significant consequences on ... [more ▼]

Climatic variations during the Quaternary period had a considerable impact on landscapes and habitat fragmentation (rivers) in North Africa. These historical events can have significant consequences on the genetic structure of the populations. Indeed, geographi- cally separated and genetically isolated populations tend to differentiate themselves through time, eventually becoming distinct lineages, allowing new species to emerge in later generations. The aim of the present study is to use genetic and morphological techniques to evaluate the major role of the Saalian glaciation (Middle Quaternary) in the establishment of the geographic space and in the evolution of the intraspecific genetic diversity, by tracing the demographic history of barbels belonging to the Luciobarbus pallaryi (Cyprinidae) species in the Guir Basin (Algeria). In this context, two populations, from two distinct and isolated sites, were studied. Analysis of the cytochrome b (cyt b) mitochondrial markers and of the ‘‘D-loop’’ control region has shown that the ‘‘upstream’’ and ‘‘downstream’’ Guir populations are genetically differentiated. The molecular analyses suggest that the upstream population was disconnected from this hydrographic system during the Saalian glaciation period of the Quaternary. Subsequently, it was isolated in the foggaras underground waters in the Great Western Erg, at approximately 320 000 years BP, creating, through a bottleneck effect, a new allopatric lineage referred to as ‘‘Adrar’’. Conversely, the high genetic diversity in the upstream Guir (Bechar) population suggests that the stock is globally in expansion. These barbels (n = 52) were also examined with meristic, morphometric, osteological, and biological features [less ▲]

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See detailGenetic diversity and population structure of the Eurosian otte (Lutra lutra) in France
Geboes, Anne-Laure ULg; Rosoux, René; Lemarchand, Charles et al

in Mammal Research (2016), 61(1),

During the last century, the Eurasian otter (Lutra lutra) suffered a dramatic decline in Europe. In France, the same pattern of sharp decline was observed with local extinctions in many regions. Before ... [more ▼]

During the last century, the Eurasian otter (Lutra lutra) suffered a dramatic decline in Europe. In France, the same pattern of sharp decline was observed with local extinctions in many regions. Before the recolonisation process, two main populations still remained along the Atlantic coast and in the Massif Central. To investigate the impact of this decline on the genetic diversity and structure of the French otter population, tissue samples of 144 otter carcasses from road kills that were found during 1992–2011 along the Atlantic coast and in the Massif Central were used. They were analysed using 10 microsatellites loci. Observed (Ho = 0.64) and expected heterozygosity (He = 0.62) were moderate, but consistent with results found in other European populations. The bottleneck test showed an excess of heterozygotes, providing evidence of a recent decline. There was evidence for weak but significant allelic frequencies divergence between otters from the Atlantic coast and those from the Massif Central (Fst=0.040, p<0.05), probably resulting from their isolation prior to the recolonisation process. As the French otter population has been expanding for several years, genetic intermixing is now occurring. Although this expansion has not yet genetically homogenised all populations, this is may be a matter a time. [less ▲]

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See detailLe mystère des loutres d'Arcy-sur-Cure
Rosoux, René; de Bellefroid, Marie des Neiges; Libois, Roland ULg

in Revue scientifique Bourgogne-Nature (2015), 21/22

The discovery of ancient footprints and spraints (faeces) of European Otter in the caves of Arcy-sur-Cure (Yonne), renowned for their great archaeological interest, has led the scientific team of the ... [more ▼]

The discovery of ancient footprints and spraints (faeces) of European Otter in the caves of Arcy-sur-Cure (Yonne), renowned for their great archaeological interest, has led the scientific team of the Museum of Natural Sciences of Orleans to launch an original archaeozoological study. The analyzes allowed, on the one hand, to date the deposits of spraints and, on the other hand, to know the main preys of these “cave otters” after the remains of prey contained in the spraints... This extensive study is among the first of its kind in France, regarding otters who frequently used an underground river a thousand years ago ! [less ▲]

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See detailRÉGIME ALIMENTAIRE ET STRATÉGIE TROPHIQUE SAISONNIÈRE DE LA LOUTRE D’EUROPE, LUTRA LUTRA, DANS LE MOYEN ATLAS (MAROC)
Libois, Roland ULg; Fareh, Mostafa; Brahimi, Amina et al

in Revue d'Ecologie (La Terre et la Vie) (2015), 70(4), 314-327

To learn more about the adaptability and predation behaviour of the European Otter (Lutra lutra) in semi-arid regions, its diet has been studied in Wadi Beth, a typical river of Middle Atlas (Morocco ... [more ▼]

To learn more about the adaptability and predation behaviour of the European Otter (Lutra lutra) in semi-arid regions, its diet has been studied in Wadi Beth, a typical river of Middle Atlas (Morocco), from its source areas (Azrou) to El Kansera hill reservoir dam. Fecal samples (spraints) were systematically collected from six locations during two annual cycles, a collection per season campaign. The study reveals that the otter’s diet is classic (dominant fish), very typical and characteristic of aquatic ecosystems in arid Mediterranean climate, which is reflected in particular by the singular presence of prey like reptiles. Prey species richness totals more than 18 species. Moreover, the frequency of occurrence and relative abundance of taxa consumed were calculated from 2444 identified prey. Fish represent more than 75 % of the prey (relative abundance) with a very large predominance of 3 species of barbels. The anuran amphibians constitute 15 % of the prey. The rest is accounted for, according their respective importance, by insects, ophidians, a chelonian (Mauremys leprosa), birds, crustaceans and finally small mammals. Over time, the diet changed: in autumn 2010, cichlids, introduced into the river, appeared in the prey consumed. The proportion of prey types abruptly changed: perciforms, rare in spring and summer 2010 (less than 4 % of the prey) increased sevenfold in autumn 2010 (27 %) and then declined in the spring and more in summer 2011. In summer 2011, the proportion of barbels dropped, drastically offset by salmonids and, even more, by amphibians. In summer, the proportion of amphibians and ophidians becomes more important. Site variations are linked to local conditions: presence of ponds, nature of the bottom, slope, speed and flow of the water, etc. Finally, small-sized fish (salmonids and barbels) dominate the diet: 80 % are less than 10 cm. [less ▲]

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See detailInsight into the Dietary Habits of the Eurasian Otter, Lutra lutra, in the East of Algeria (El-Kala National Park)
Libois, Roland ULg; Ghalmi, Rachida; Brahimi, Amina

in Ecologia mediterranea (2015), 41(2), 85-91

In 1997, faeces samples (spraints) (n = 175) from the European otter (Lutra lutra) were taken in seven localities of the El-Kala region. This is a restricted eco-geographic complex in which freshwater ... [more ▼]

In 1997, faeces samples (spraints) (n = 175) from the European otter (Lutra lutra) were taken in seven localities of the El-Kala region. This is a restricted eco-geographic complex in which freshwater hydrographical systems, comprising rivers, ponds and wet coastal zones (brackish lagoons, shipping channels), are highly interwoven. The frequency of occurrence and relative abundance of consumed taxons were calculated on the basis of 493 identified prey. Fish made up more than 88% of the otter’s catch (relative abundance), with a strong predominance of Pseudorasbora parva, Luciobarbus callensis and undetermined Cyprinidae. Anuran amphibians made up 9% of the prey. The remainder were represented, in order of significance, by mullets, eels (Anguilla anguilla), bleaks (Alburnus alburnus), perciformes, gobies, insects, birds, crustaceans, etc. However, Cyprinidae, the eel and the barbel dominated in terms of ingested biomass. The otter’s diet varies with local conditions: lagoons and channels have marine or migratory fish; rivers are dominated by barbels; ponds by Cyprinidae. Finally, small-sized fish (topmouth gudgeon and barbel) dominated the diet in terms of numbers: 62% are smaller than 12.5 cm. The introduction of the topmouth gudgeon into the region could have catastrophic consequences for endemic fish, such as Pseudophoxinus callensis. [less ▲]

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See detailEtude des facteurs influençant la visite des oiseaux dans les champs de riz
Nasasagare, Régine-Pacis; Ntakimazi, Gaspard; Libois, Roland ULg

in Bulletin scientifique de l'Institut national pour l'environnement et la conservation de la nature (2014), 13

This study was conducted in order to show pest bird species on rice in Burundi. An exhaustive ornithologic inventory was done in 45 fields in the plain of Rusizi and 30 in Ngozi fields were randomly ... [more ▼]

This study was conducted in order to show pest bird species on rice in Burundi. An exhaustive ornithologic inventory was done in 45 fields in the plain of Rusizi and 30 in Ngozi fields were randomly chosen and classified in 3 categories for Rusizi plain (2 for Ngozi): fully guarded plots, partially guarded plots and not guarded plots. There were no fields partially guarded for Ngozi. Resultats revealed a list of bird species that have a real impact on rice production in Burundi. The current study also allowed to put in evidence factors of the motivation of their visit. [less ▲]

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See detailRapid morphological change of barbels (Cyprinidae) after the dry-up of Sahara
Brahimi, Amina; Tarai, Nacer; Libois, Roland ULg

Poster (2014, December 12)

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See detailSpatiotemporal variations of the incidence of the fleas (Siphonaptera) on domestic small mammals in the city of Cotonou, Benin
Houménou, Gualbert; Kassa, Barthélemy; Libois, Roland ULg

in Journal of Applied Biosciences (2014), 80

Objectives: A survey of domestic small mammals and their associated fleas was conducted in Cotonou during the years 2008, 2009 and 2010. The objective of this study was to evaluate the potential role of ... [more ▼]

Objectives: A survey of domestic small mammals and their associated fleas was conducted in Cotonou during the years 2008, 2009 and 2010. The objective of this study was to evaluate the potential role of small mammals in the transmission of anthropozoonosis. Methodology and Results: A total of 1,402 domestic small mammals were captured in 54 stations using methods following Houémenou (2006). The most abundant small mammals were, Rattus rattus (black rat) (63.7%), Mastomys sp. (multimammate rat) (11.84%), Rattus norvegicus (brown rat) (11.48%) and Crocidura olivieri (7.85%). Among these rodents, 364 individuals were found with ectoparasites and 886 fleas were collected (flea index 0.63), the most common flea being Xenopsylla cheopis (rat flea) (97.2%). This species was found in all areas of the city and infested all small mammal species. The Pulicidae prevalence (26%) howed important variations, with relatively low and significantly higher prevalence during the rainy and dry seasons, respectively. Conclusions and application of findings: Small mammal community in Cotonou was dominated by Rattus rattus and fleas by Xenopsylla cheopis. Due to the presence of a seaport of paramount importance, Cotonou town was not away from importation by sea transport of zoonotic rats (shelter ships calling at the port of Cotonou, from all continents). To date, in Cotonou there is lacking information on pathogenic agents hosted by the small mammals and their ectoparasites. Therefore, awareness of the authorities on the zoonotic risk of small mammals for the human population is necessary. The authorities of the Port Autonome de Cotonou must increase the screening of ships, which arrive at Cotonou to avoid zoonotic rodent importation. The Ministry of Human Health in Benin must sensitize the populations at high risk of the rodent transmitted diseases. Further studies are needed to detect the different animal reservoirs of these pathogenic agents. [less ▲]

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See detailEcologie, diversité spécifique et abondance des petits mammifères de la ville de Cotonou au Bénin (Afrique de l’Ouest)
Houèmènou, Gualbert; Kassa, B.; Libois, Roland ULg

in International Journal of Biological and Chemical Sciences (2014), 8(3), 1202-1213

L’étude de la diversité des petits mammifères de la ville de Cotonou (Bénin) selon les types de milieux (habités ou non) a été réalisée du 25 août 2004 au 25 mai 2005 avec interruptions. Les campagnes de ... [more ▼]

L’étude de la diversité des petits mammifères de la ville de Cotonou (Bénin) selon les types de milieux (habités ou non) a été réalisée du 25 août 2004 au 25 mai 2005 avec interruptions. Les campagnes de captures ont été effectuées. Au total, 348 petits mammifères ont été capturés pour un effort de piégeage de 2652 nuits-pièges et 11 espèces comprenant 3 espèces (Rattus rattus, Rattus norvegicus et Mus domesticus) cosmopolites représentant 25% du total et les espèces africaines (Crocidura olivieri, Crocidura sp., Arvicanthis niloticus,Cricetomys gambianus, Dasymys rufulus, Mastomys sp., Gerbilliscus kempi, Taterillus gracilis) représentant 75% du total, ont été inventoriées. La prépondérance de Rattus rattus dans les captures avec 59,8% de Mastomys sp. (13,5%) et de C. olivieri (8,6%) a été notée. Mus domesticus (0,29%), Arvicanthis niloticus (0,86%) et Crocidura sp. (0,86%) sont faiblement représentées. L’indice de diversité de Shannon est de 2,08 dans la ville de Cotonou, de 2,70 dans les milieux non habités et de 1,45 dans les milieux habités où l’on ne trouve quasiment que les rats et souris. Le domaine de l’aéroport (aéroport international de Cotonou) et quelques zones marécageuses, inaccessibles à la population, constituent des zones refuges où l’indice de diversité des petits mammifères est relativement élevé. [less ▲]

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See detailLes puces des oiseaux de Belgique: inventaire et hôtes
Libois, Roland ULg

in Aves (2014), 51(4), 217-230

More than 7500 bird fleas from Belgium have been identified from the author's perconal collection and from the collections of the Royal Institute of Natural Sciences in Brussels and of the Gembloux ... [more ▼]

More than 7500 bird fleas from Belgium have been identified from the author's perconal collection and from the collections of the Royal Institute of Natural Sciences in Brussels and of the Gembloux Faculty of Agronomy. Two genera were found (Ceratophyllus, 9 species and Dasypsyllus, 1 species). It seems that some are rare, other much more common. However sampling was not random and the collecting effort was rather variable. The data set has been organised by taxonomic order of the hosts (birds) and it includes all essential information: date, locality and geographical coordinates, number of fleas and the name of the collector. The species Ceratophyllus gallinae and Dasypsyllus gallinulae have been mapped. The phenology suggests that these are mainly springtime species. [less ▲]

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See detailRégime alimentaire et stratégie de prédation chez le busard Saint-Martin, Circus cyaneus, en forêt d'Orléans
Rosoux, René; Libois, Roland ULg; Larigauderie, Marie-France et al

in Recherches Naturalistes en Région Centre (2013), 21

Le Busard Saint-Martin, rapace qui traditionnellement installe son nid dans des steppes herbeuses, les landes, les tourbières et des lits d'hélophytes, niche également dans les formations forestières ... [more ▼]

Le Busard Saint-Martin, rapace qui traditionnellement installe son nid dans des steppes herbeuses, les landes, les tourbières et des lits d'hélophytes, niche également dans les formations forestières pionnières, mais aussi, depuis quelques décennies, dans les grandes cultures céréalières. En région Centre, une petite partie de la population de ce busard niche traditionnellement dans le massif forestier d'Orléans et il était intéressant de savoir dans les quels milieux s'alimentaient les adultes nicheurs. Une étude du régimealimentaire de l'espèce, basée sur deux années consécutives (2008 et 2009), a été menée parallèlement au programme "Oiseaux des bois", coordonné par l'ONF et la LPO. [less ▲]

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See detailChoix des proies et stratégie trophique chez le balbuzard pêcheur dans la vallée de la Loire (Périodes de reproduction 2008/2012)
Rosoux, René; Schweyer, Jean-Baptiste; Libois, Roland ULg

in Résumés du colloque international "Balbuzard pêcheur" (2013, September)

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See detailLe balbuzard pêcheur: histoire d'une sauvegarde
de Bellefroid, Marie-des-Neiges; Berny, Philippe; Corallo, Christian et al

Book published by Catiche productions (2013)

Ce grand rapace ayant frôlé l'extinction, le balbuzard voit ses effectifs se reconstituer progressivement grâce à des actions de protection de ses habitats mais aussi un programme d'études scientifiques ... [more ▼]

Ce grand rapace ayant frôlé l'extinction, le balbuzard voit ses effectifs se reconstituer progressivement grâce à des actions de protection de ses habitats mais aussi un programme d'études scientifiques: baguage, suivi des couples nicheurs, alimentation... [less ▲]

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See detailUrban wild boar management : a resource selection analysis based on eradication data
Bovy, Céline; Libois, Roland ULg; Licoppe, Alain ULg

Poster (2013, August)

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See detailEvaluation of the hybridization between the domectic cat and the European wildcat in the Walloon region
Lambinet, Clotilde ULg; Schockert, Vincianne ULg; Libois, Roland ULg

in Lecocq, Yves (Ed.) Abstacts of 31st congress IUGB (2013, August)

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See detailMethodology used for the European badger (Meles meles) monitoring in Wallonie
Schockert, Vincianne ULg; Lambinet, Clotilde ULg; Cornet, Yves ULg et al

in Lecocq, Yves (Ed.) Abstracts of 31st IUGB congress (2013, August)

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See detailEcological impacts of an invasive species in Wallonie, the raccoon Procyon lotor
Campos-Martinez, Irène; Gautherot, J.; Lambinet, Clotilde ULg et al

Poster (2013, August)

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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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