Search publications of the members of the Royal Belgian institute of natural Sciences
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Metagenomics of tsunami deposits: developments, challenges and recommendations from a case study on the Shetland Islands (UK)
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Metagenomics of tsunami deposits: developments, challenges and recommendations from a case study on the Shetland Islands (UK)
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In depth exploration of the biodiversity of asterozoan fauna in Admiralty Bay and Bransfield Strait, Antarctic Peninsula
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How the Genus Eusirus amphipods evolved and speciated in the Antarctic
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The thermal spring of Elvenschans-Navagne in Moelingen (Voeren-Fourons) and its geological origin
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Geoelectrisch onderzoek op de Grensmaas
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Fault pattern of the Feldbiss fault system (southern margin of the Rur Valley Graben), based on a high resolution reflection seismic survey carried out in 1999 – preliminary results. In: Camelbeeck, Th., ed., Proceedings of the Workshop: Evaluation of the
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De onderkant van Limburg, verwaarloosd erfgoed.
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Jos Bouckaert (1930-1999) Leven en Werk
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Deformation features in Paleogene sands in the Hoegaarden area (Belgium)
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Palaeogeographic and palaeoenvironmental characteristics of major marine incursions in Northwestern Europe during the Westphalian C (Bolsovian)
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The Merksplas-Beerse geothermal well (17W265) and the Dinantian reservoir
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Plio-Pleistocene fault pattern of the Feldbiss fault system (southern border of the Roer Valley Graben, Belgium) based on high resolution reflection seismic data
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Puits soufflard et calcul des vides dans un karst couvert, l'exemple du sondage de Ramegnies-Chin. In: Verheyden, S. & Bernard, Ch., eds. Actes des Journées de SpéléologieScientifique Han-sur-Lesse 1997 à 2000
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Pityokteines vorontzowi (Jakobson, 1896), Scolyte nouveau pour la faune de Belgique (Coleoptera, Curculionidae, Scolytinae)
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Editorial
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Biodiversité et écologie de la faune aquatique des eaux souterraines de Bir Ben Osmane (Guelma, Nord-Est Algérie)
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A survey of transposon landscapes in the putative ancient asexual ostracod Darwinula stevensoni
- How asexual reproduction shapes transposable element (TE) content and diversity in eukaryotic genomes remains debated. We performed an initial survey of TE load and diversity in the putative ancient asexual ostracod Darwinula stevensoni. We examined long contiguous stretches of DNA in clones from a genomic fosmid library, totaling about 2.5 Mb, and supplemented these data with results on TE abundance and diversity from an Illumina draft genome. In contrast to other TE studies in putatively ancient asexuals, which revealed relatively low TE content, we found that at least 19% of the fosmid dataset and 26% of the genome assembly corresponded to known transposons. We observed a high diversity of transposon families, including LINE, gypsy, PLE, mariner/Tc, hAT, CMC, Sola2, Ginger, Merlin, Harbinger, MITEs and helitrons, with the prevalence of DNA transposons. The predominantly low levels of sequence diversity indicate that many TEs are or have recently been active. In the fosmid data, no correlation was found between telomeric repeats and non-LTR retrotransposons, which are present near telomeres in other taxa. Most TEs in the fosmid data were located outside of introns and almost none were found in exons. We also report an N-terminal Myb/SANT-like DNA-binding domain in site-specific R4/Dong non-LTR retrotransposons. Although initial results on transposable loads need to be verified with high quality draft genomes, this study provides important first insights into TE dynamics in putative ancient asexual ostracods.
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Scale-dependent patterns of metacommunity structuring in aquatic organisms across floodplain systems
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The worked bone industry and intrusive fauna associated with the prehistoric cave burials of Abri des Autours (Belgium)
- ABSTRACT The excavation of the Abri des Autours, a rock-shelter located in southern Belgium, enabled the discovery of three human burials, two dated to the Early Mesolithic and a third dated to the Middle Neolithic. In addition to the human bones, more than 200 faunal remains were uncovered. A taphonomic analysis was undertaken to determine whether their presence resulted from anthropogenic activities and whether they are linked to the burials. Two assemblages were distinguished. The majority of the fauna corresponds to remains of animals found scattered throughout the cave, including in the Mesolithic levels. These are mainly portions of carcasses brought in to the rockshelter by scavengers or predators. Therefore, their deposition did not result from human activity. Thus far, no animal bone had been found in direct association with Mesolithic burials in Belgium, and this site conforms to that pattern. Moreover, this interpretation corroborates the archaeological study, which did not uncover any traces of domestic activity in the cave, during either the Mesolithic or the Neolithic. On the other hand, several bone artefacts, including various tools and a pendant, were also identified. With the exception of an isolated artefact, all of these were clearly associated with the Middle Neolithic burial (Michelsberg culture). This is only the fourth Neolithic cave burial to have yielded animal bone artefacts in Belgium. A preliminary micro-wear analysis has confirmed that these objects had been used before being deposited and has allowed us to propose several hypotheses concerning their original use.
