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Inproceedings Reference Der südliche Bergstraßenneckar im Oberrheingraben: Erste Ergebnisse zur fluvialen Aktivität, Ver-landung und anthropogenen Überprägung
Located in Library / RBINS Staff Publications 2020
Inproceedings Reference Des champs et des bêtes à Bruxelles (10e-15e siècles). Approche interdisciplinaire des pratiques agricoles et alimentaires.
Located in Library / RBINS Staff Publications
Inproceedings Reference Des comblements riches en biorestes : les puits de Château Renaud, Virton (Antiquité tardive).
Located in Library / RBINS Staff Publications 2018
Inproceedings Reference Des meulières en bord de Meuse : exploitation et transport du Poudingue de Burnot autour de la conquête romaine.
ed. by Groupe de recherche AcanthuM, Faculté de Philosophie et Lettres, Université de Namur, vol. 1, chap. 1, pp. 1, Université de Namur, rue de Bruxelles 61, B-5000 Namur, Belgique, U.Namur, Abstract book ed.
Located in Library / No RBINS Staff publications
Proceedings Reference Des Néandertaliens à la troisième caverne de Goyet (Belgique) et leur gestes mortuaires
Located in Library / RBINS Staff Publications
Article Reference Des Néandertaliens à la troisième caverne de Goyet (Belgique) et leur gestes mortuaires.
Located in Library / RBINS Staff Publications
Inproceedings Reference Detecting algae blooms in European waters
A near real-time algal bloom detection service has been developed for European waters. Daily chlorophyll a data from Envisat/MERIS and Aqua/MODIS are compared to a predefined threshold map to determine whether an algal bloom has occurred. The design of the threshold map takes account of two factors. Firstly, over European waters regional differences in typical and extreme levels of chlorophyll a span two orders of magnitude. A concentration, e.g. 2 μg/1, that would be considered as a bloom concentration in one region could correspond to a relatively low concentration in another region. Secondly, the errors in satellite chlorophyll a can be significant in coastal waters effectively giving an artificial background level in satellite images. To account for these two factors a threshold map has been designed using satellite chlorophyll a data from a previous year, with separate threshold maps for each sensor to take account of sensor-specific bias. This threshold is defined here as the top 10\% level of a previous year's chlorophyll a data. The results of algal bloom detection in various regions are analysed in terms of bloom timing, duration and strength. Differences between the performance for the MERIS and Aqua sensors are also discussed.
Located in Library / RBINS Staff Publications
Inproceedings Reference Detecting Xenopus laevis in Belgium using eDNA and qPCR
Located in Library / RBINS Staff Publications 2022 OA
Inproceedings Reference Détection et identification moléculaire des parasitoïdes des larves de cécidomyie orange du blé
La cécidomyie orange du blé est un important ravageur. Ce diptère est contrôlé naturellement par un complexe d’hyménoptères parasitoïdes. Pour faciliter l’étude de celui-ci, nous avons développé des outils moléculaires pour la détection et l'identification des sept espèces de parasitoïdes rencontrées en Belgique. Des séquences d'ADN des gènes COI, 18S et 28S ont été obtenues à partir de spécimens de référence. Sur la base du 18S, nous avons développé différents tests permettant la détection du parasitisme ou l’identification des espèces de parasitoïde. Ces outils moléculaires ont été appliqués avec succès pour évaluer le taux de parasitisme de larves issues de sept champs. Il s’avère que le taux de parasitisme varie entre 0 % et 33%. L’espèce dominante est Macroglenes penetrans, suivie de Platygaster tuberosula et Euxestonotus error conformément à la littérature. Grâce à cet outil, le suivi du parasitisme sera facilité afin d’améliorer la compréhension de ce contrôle biologique.
Located in Library / RBINS Staff Publications 2024
Article Reference Detection of invasive and alien land planarians as threats to agriculture and ecosystem stability
Alien land planarians are considered potential threats to European agriculture and ecosystem stability. Severe impact of alien land planarian species in Europe but also worldwide was reported including depletion of local and native soil invertebrates and possible detrimental changes at the ecosystem level. Given the increasing number of studies reporting non-native and potentially invasive species of geoplanid planarians, further action in first response related to worldwide plant trade is called for. To date, the only flatworm on the list of “Invasive Alien Species of European Union Concern” is the New Zealand flatworm Arthurdendyus triangulatus. To help authorities detect and prevent introduction of the New Zealand flatworm, we designed an experiment in order to develop a species-specific barcoding protocol to check possible contamination by A. triangulatus of containerised flowerpots, identified as the most probable source of its co-introduction to non-native region. Based on our results, specific behavior of A. triangulatus staying restricted to the surface and upper layer of the flowerpot determines accessibility of DNA in the soil. Therefore, water-based eDNA methodology combined with a newly established qPCR protocol is preferred as it provides a sensitive approach for detection of A. triangulatus in the flowerpots. Further testing is needed to determine sensitivity of the persistence of eDNA following the flatworm’s removal, to estimate the risk of false positives. The newly designed barcoding protocols provide species-specific diagnosis of one invasive and three non-native land planarians currently being assessed for their invasion risks. However, the species-specificity of the developed barcoding protocols might need to be re-evaluated in case of introduction of new planarian species, and in view of apparent misidentifications regarding published genetic resources. Instead, general protocols requiring genetic sequence analyses would offer a more robust approach to assess species diversity of introduced and potentially invasive land planarians.
Located in Library / RBINS Staff Publications 2024