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Inproceedings Reference Apports de la chémostratigraphie "long-terme" (isotopes stables du carbone sur la matière organique) à la datation de mammifères durant le Paléogène
Depuis quelques décennies, les rapides (« court-terme » - quelques dizaines à quelques centaines de milliers d’années) excursions d’isotopes stables (δ13C et δ18O) sur différents types de supports (roche totale carbonatée, nodules de paléosols, certaines espèces animales et végétales, matière organique totale ou spécifique) servent de jalons chémostratigraphiques éprouvés durant le Paléogène (Late Danian Event, PETM ou ETM-1, ETM-2, ETM-3, MECO, Oi-1, Oi-1a, etc). Récemment, les tendances isotopiques des mêmes éléments, utilisées à « long-terme » (quelques centaines de milliers d’années à quelques millions d’années) montrent une certaine utilité, particulièrement dans les coupes dépourvues d’autres informations stratigraphiques. Des coupes strictement continentales peuvent être ainsi corrélées avec les échelles chronostratigraphiques marines. A partir de plusieurs études de cas spécifiques au Maroc, Sud de la France (Corbières, Minervois, région de Montpellier, Provence), Angola et Belgique, la présente communication illustrera les contraintes, biais et perspectives de la chémostratigraphie (appelée également chimiostratigraphie) « long-terme » du carbone sur la matière organique totale. Des corrélations inter-régionales, voire inter-continentales (notamment avec le Wyoming, USA), sont mises en évidence en couplant bio- et chémo-stratigraphie, autorisant une discussion de l’évolution des mammifères dans différentes régions, y compris celles contenant des faunes strictement endémiques.
Located in Library / RBINS Staff Publications 2019
Inproceedings Reference Biodiversité des invertébrés des eaux souterraines du Bénin : ouvrir la voie aux outils d'évaluation et de suivi de la qualité des eaux
Located in Library / RBINS Staff Publications 2019
Inproceedings Reference Authenticating fish and seafood products for sale on the Belgian market
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference Aliens in Europe
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference The use of DNA barcoding to improve the taxonomy of Afrotropical hoverflies (Diptera: Syrphidae)
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference A first, local DNA barcode reference database of the forensically important flies (Diptera) of the island of La Reunion
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference Solving crimes: a forensic rove beetles (Staphylinidae) barcode database for Belgium
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference DNA barcoding of ants from the Galapagos Archipelago: searching endemic and introduced species
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference Ways forward in quantifying data uncertainty in geological databases
Issues of compatibility of geological data resulting from the merging of many different data sources and time periods may jeopardize harmonization of data products. Important progress has been made due to increasing data standardization, e.g., at a European scale through the SeaDataNet and Geo-Seas data management infrastructures. Common geological data standards are unambiguously defined, avoiding semantic overlap in geological data and associated metadata. Quality flagging is also applied increasingly, though ways in further propagating this information in data products is still at its infancy. For the Belgian and southern Netherlands part of the North Sea, databases are now rigorously re-analyzed in view of quantifying quality flags in terms of uncertainty to be propagated through a 3D voxel model of the subsurface (https://odnature.naturalsciences.be/tiles/). An approach is worked out to consistently account for differences in positioning, sampling gear, analysis procedures and vintage. The flag scaling is used in the interpolation process of geological data, but will also be used when visualizing the suitability of geological resources in a decision support system. Expert knowledge is systematically revisited as to avoid totally inappropriate use of the flag scaling process. The quality flagging is also important when communicating results to end-users. Therefore, an open data policy in combination with several processing tools will be at the heart of a new Belgian geological data portal as a platform for knowledge building (KB) and knowledge management (KM) serving the marine geoscience, the policy community and the public at large.
Located in Library / RBINS Staff Publications 2017
Inproceedings Reference Amphibians and Squamates from the Late Pleistocene of Caverne Marie-Jeanne (Belgium)
Archaeological sites usually provide important information about the past distribution of the small vertebrate fauna, and by extension about past terrestrial environments and climate in which human activities took place. In this context, Belgium has an interesting location in North-western Europe between the well-studied zooarchaeological record of Germany and England. The Late Pleistocene (Marine Isotope Stages 3 and 2) locality of Caverne Marie-Jeanne (southeast of Belgium, Ardennes region) yielded a large collection of disarticulated bone fragments and numerous plant, mollusk, and archaeological remains. They have been collected during the first field campaign in 1943 and stored in the Quaternary collections of the Royal Belgian Institute of Natural Sciences. A recent revision of the rich micromammal fauna (31 taxa of insectivores, bats, and rodents among 9897 identified specimens, corresponding to a minimum of 4980 individuals) revealed the presence of the steppe lemming and the European pine vole. We present here the revision of the herpetofauna based on the 1970 Jean-Claude Rage’s study and the revision of the “indeterminate” small vertebrate specimens. It is now by far the largest Late Pleistocene collection of the Belgian institute with more than 20,500 recognized bones of amphibians and reptiles and covering the last 60,000 years. The herpetofaunal list now comprises two urodeles (Lissotriton gr. L. vulgaris and Salamandra salamandra), four anurans (Bufo gr. B. bufo-spinosus, Epidalea calamita, Rana temporaria and Rana cf. R. arvalis), three lizards (Lacerta cf. L. agilis, Zootoca vivipara and Anguis gr. A. fragilis) and three snakes (Natrix gr. N. natrix-astreptophora, Coronella austriaca and Vipera berus). This study highlights the first fossil record in Belgium for L. gr. L. vulgaris, R. arvalis, Z. vivipara, N. gr. N. natrix-astretophora and C. austriaca. This assemblage suggests a patchy humid landscape under colder and dryer climatic conditions in comparison with present ones. The study also underlines the importance to carefully reexamine old collections. Grant Information: Grant 2017-SGR-859 (Gov. of Catalonia, AGAUR), CGL2016-80000-P (Spanish Min. of Econ. & Comp.), RYC-2016-19386 (Ramón y Cajal), Synthesys BE-TAF-4385, -5469, -5468, -5708.
Located in Library / RBINS Staff Publications 2019