Search publications of the members of the Royal Belgian institute of natural Sciences
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Seabria orientalis (Hintz, 1909) review of its taxonomic history, distribution note and description of the male genitalia (Coleoptera, Cerambycidae, Prioninae)
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Note on the distribution of Prionus kucerai Drumont & Komiya, 2006 in China (Coleoptera, Cerambycidae, Prioninae)
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Notes on the Distribution of Phyllognathus dionysius Fabricius in Pakistan (Coleoptera, Scarabaeoidea, Dynastidae)
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Contribution of Kanaan, Kassarat and Jeita cave systems study in the morphogenesis reconstitution of valleys, Mt-Lebanon: case study of Kalb and Antelias valleys
- Recent studies in Lebanon conducted on multi-level caves propose new insights on incision stages of Kalb and Antelias valleys. The study area is located in central Mt Lebanon and comprises a dammed karst configuration close to the Mediterranean Sea. The suggested morphogenesis model of both valleys is based on the relation between the karst base level and the thalweg levels of both rivers. A crossover analysis between speleogenesis stages of Kanaan, Kassarat and Jeita caves, the geology settings of the area and marine terraces and paleosurfaces suggest three evolution stages for Kalb and Antelias valleys. The study highlights on: i) the sub-surface morphologies as indicators for the paragenesis process identified in all three caves in response to base level aggradation, ii) latter incision of Jeita and Kassarat canyons with the reorganization of the drainage system in response to the base level drop, iii) implications of regional eustatic changes of the Mediterranean sea and tectonic uplift of Mt Lebanon. Prelemenary chronology settings for the evolution of karst system is discussed based on U/Th datations of speleothems: Speleothem growth in Kanaan cave (100 m.) began at the end of Mid-Pleistocene (cf. 194 ka ± 0.98) and also at the end of MIS 6 (cf. 127 ka ± 0.7402). Speleothems dating from Kassarat cave (60m.) showed ages at the end of MIS 3 (cf. 37.590 ±0.82 and 33.921 ±1.09). Considering that the cave level identified at 90-160 m indicate that all three caves developed in the phreatic/epiphreatic zone of Antelias and Kalb karst basin, the passage to vadose conditions is occurred then at least from the end of Mid-Pleistocene. Cave levels are therefore, prior to this age inferring to the incision of Antelias and Kalb thalwegs probably during early or Mid-Pleistocene. The cave level identified at 90-160 m and 60-70 m correspond to the elevation of some low-gradient surfaces in the area. Based on the geomorphological work interpreted in the geological framework of Antelias and Kal valleys and compared to other cave levels around the Mediterranean basin, we suggest that the first cave level could be related to a former regional transgression of the Mediterranean sea during the Pliocene. Whereas abandon of the second and lower level could be related to a marine regression stage or to Mt-Lebanon uplift during the Pleistocene.
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First record of Leiopus linnei Wallin, Nylander & Kvamme, 2009 in Belgium (Coleoptera, Cerambycidae, Lamiinae)
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A well preserved fossil ant in Baltic amber of the enigmatic genus Gesomyrmex Mayr, 1868 (Hymenoptera, Formicidae)
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A list of ant species collected in the surrounding area of Rocher Frédericq (Hockai) with the first record of Leptotohorax gredleri Mayr, 1855 in belgium
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mtDNA analysis in the groundwater amphipod Niphargus from the Meuse Valley (Belgium)
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Palaeoclimate reconstruction in the Levant region from the petrographic and growth rate of a MIS 5 stalagmite from the Kanaan cave, Lebanon
- Mount Lebanon consists mainly of carbonate rocks which contain numerous caves with an abundance of well-preserved speleothem deposits. A 23 cm long stalagmite (K1-2010) was obtained from Kanaan cave, situated just north of Beirut within the western flank of central Mount Lebanon at 100 m altitude. To develop an age model for the speleothem, a suite of uranium series (U-Th) dates was performed in the NERC Isotope Geosciences Laboratory at the British Geological Survey. The speleothem displays two main segments: The lower segment (segment 1) is 8.2 cm long and displays a general growth axis varying from 8.5 cm diameter in the lower part to 6 cm in its middle part. This segment grew from at least 129.7 ± 0.8 ka to 111.8 ± 0.7 ka. Several hiatuses are observed and are probably linked to detrital layers. The higher segment (segment 2) is 12.3 cm long and displays a thinner diameter varying from 6.5 to 4 cm at its topmost part. This segment grew continuously from 102.5 ± 0.96 to 85.3 ± 0.8 ka. The lower segment, deposited during S-5 event in the Eastern Mediterranean (128-117 ka) shows growth rates reaching 0.15 cm/100 yr coinciding with enhanced rainfall events in speleothem records from the Southern Levant during the S-5 event as suggested by Frumkin (1999) and Bar-Mathews (2003). Speleothem growth stopped between 103.5 and 109 ka and the growth axis rotated. The higher segment shows a more moderate growth rate (0.09 cm/100 yr) until 100 ka, corresponding to low δ18O values in speleothems from Peqiin and Soreq caves and thus to enhanced rainfall events. Very low growth rates (0.03 to 0.06 cm/100 yr) from 100 to 85 ka are associated with colder climates during the latter part of MIS5 subsequent to the S-5 event. This stalagmite demonstrates the palaeoclimatic potential of speleothem records in the northern Levant region.
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mtDNA variation in peripheral populations of the groundwater amphipod genus Niphargus (Amphipoda, Crustacea) from the Meuse valley (Belgium)
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Lack of macrogeographic mtDNA differentiation in Niphargus schellenbergi (Amphipoda)?
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The genus Odo Keyserling, 1887 (Araneae: Zoridae) of the Galapagos islands (Ecuador)
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Spinnen verzameld door Jean-Pierre Maelfait en Lut van Nieuwenhuyse tijdens het Arabel-Weekend in de Viroinstreek
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Les Araignées "cavernicoles" de Belgique
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Assessing the diversity of Congolese snakes with DNA barcoding
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Le Niphargus, développement d'un enregistreur autonome de température basé sur un capteur monolithique à diode de silicium. Cas d'étude dans les grottes de Han-sur-Lesse et Remouchamps.
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Seasonal variations recorded in cave monitoring results and a 10-year monthly resolved speleothem 18O and 13C record from the Han-sur-Lesse cave, Belgium.
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Minerals4EU : A leading minerals intelligence network for Europe - project booklet
- The Minerals4EU project is designed to meet the recommendations of the Raw Materials Initiative and will develop an EU Mineral intelligence network structure delivering a web portal, a European Minerals Yearbook and foresight studies. The network will provide data, information and knowledge on mineral resources around Europe, based on an accepted business model, making a fundamental contribution to the European Innovation Partnership on Raw Materials (EIP RM), seen by the Competitiveness Council as key for the successful implementation of the major EU2020 policies. The Minerals4EU project will firstly establish the EU minerals intelligence network structure, comprising European minerals data providers and stakeholders, and transform this into a sustainable operational service. Minerals4EU will therefore contribute to and support decision making on the policy and adaptation strategies of the Commission, as well as supporting the security of EU resource and raw materials supply, by developing a network structure with mineral information data and products, based on authoritative of information sources. The Minerals4EU project is built around an INSPIRE compatible infrastructure that enables EU geological surveys and other partners to share mineral information and knowledge, and stakeholders to find, view and acquire standardized and harmonized georesource and related data. The target of the Minerals4EU project is to integrate the best available mineral expertise and information based on the knowledge base of member geological surveys and other relevant stakeholders, in support of public policy-making, industry, society, communication and education purposes at European and international levels. The Minerals4EU consortium possesses the skills and resources to make this the leading European mineral information network structure that will provide tools and expertise to enhance resource efficiency, minerals supply security and support sustainable mineral development for Europe.
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Geopark Calestienne Lesse§Lomme
- Si une région karstique mérite d’être intégrée dans le concept de Geopark, il s’agit bien du territoire regroupant les grottes, paysages et patrimoine centrés sur les communes de Rochefort, Wellin, Marche-en-Famenne, Tellin et Nassogne en Belgique. Marquant le cœur du futur Geopark, le système des Grottes de Han-sur-Lesse jouit d’une renommée mondiale, à la fois dans le domaine touristique, scientifique et patrimonial. Le système voisin, celui de la Lomme et de la Wamme souterraines déjà mis en exergue par Vandenbroeck, Martel et Rahir dans leur livre « Cavernes et Rivières souterraines de Belgique » en 1913, ne cède en rien à sa grande sœur dans les trois domaines précités. Enfin, toute la région regorge de sites archéologiques, dont celui découvert lors des fameuses fouilles subaquatiques de la Lesse, des sites historiques, folkloriques et patrimoniaux.
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« Nos » oiseaux sont-ils africains ou européens ?
