10 Works

Macrobenthic Cumacea collected by epibenthic sledge from the Amundsen Sea in March 2008 and from the Prince Gustav Channel and Duse Bay, Eastern Antarctic Peninsula in March 2018

Katrin Linse, Laura Steib, Angelika Brandt & Davide Di Franco
In 2008 RRS James Clark Ross investigated the marine benthic biodiversity in Amundsen Sea and in 2018 the marine benthic biodiversity of the Prince Gustav Channel (PGC) area and the macrobenthic cumacean fauna (Peracarida, Crustacea) collected by epibenthic sledge (EBS) has been assessed for species richness, abundance and assemblage composition. In total 4431 cumacean specimens assigned to 58 morphospecies and 5 families were identified. To set the cumacean dataset into a wider context, published cumacean...

RepeatModeler and RepeatMasker output files

Reuben Nowell, Christopher Wilson, Pedro Almeida, Philipp Schiffer, Diego Fontaneto, Lutz Becks, Fernando Rodriguez, Irina Arkhipova & Timothy Barraclough
Transposable elements (TEs) are selfish genomic parasites whose ability to spread autonomously is facilitated by sexual reproduction in their hosts. If hosts become obligately asexual, TE frequencies and dynamics are predicted to change dramatically, but the long-term outcome is unclear. Here, we test current theory using whole-genome sequence data from eight species of bdelloid rotifers, a class of invertebrates in which males are thus far unknown. Contrary to expectations, we find a variety of active...

Textkorpus Scriptoria. Forschungsprojekt: Unterrichtliche Förderung von Teilkomponenten der Schreibkompetenz

Michael Becker-Mrotzek & Joachim Grabowski
The text corpus comprises 5,628 learner texts in German. These are report and argumentation texts that were collected in fifth and ninth grades at comprehensive schools and grammar schools in Hanover and Cologne. Within the scope of the study, the students wrote two texts each at three measurement points. The writing products are provided electronically in orthographically smoothed form (PDF) and as a scan of the handwritten originals (PDF). The writing tasks including the image...

Data from: Ovipositor and mouthparts in a fossil insect support a novel ecological role for early orthopterans in 300 million years old forests

Lu Chen, Alexander Blanke, Jun-Jie Gu, Qiang Yang, Dong Ren & Olivier Béthoux
A high portion of the earliest known, Pennsylvanian, insect fauna is composed of the so-called ‘lobeattid insects’, which systematic affinities and role as foliage feeders remain debated. We investigated hundreds of samples of a new lobeattid species from the Xiaheyan locality using a combination of photographic techniques, including Reflectance Transforming Imaging, and geometric morphometrics, to document its morphology, and infer its phylogenetic position and ecological role. Ctenoptilus frequens sp. nov. possessed a sword-shaped ovipositor whose...

Phenotypic convergence in a natural Daphnia population acclimated to low temperature

Christian Werner, Kathrin A. Otte & Eric Von Elert
Fluidity of a given membrane decreases at lower ambient temperatures, whereas it rises at increasing temperatures, which is achieved through changes in membrane lipid composition. In consistence with homeoviscous adaptation theory, lower temperatures result in increased tissue concentrations of polyunsaturated fatty acids (PUFAs) in D. magna, suggesting a higher PUFA requirement at lower temperatures. However, so far homeoviscous adaptation has been suggested for single or geographically separated Daphnia genotypes only. Here we investigated changes in...

The Caucasian dwarf goby, a new alien Gobiidae spreading at the Lower Rhine, Germany

Jost Borcherding, Dominik Aschemeier, Jacqueline Bruhy, Lisa Heermann, Jan Lindner, Sophia Lara Schröder, Katalin Wagner & Stefan Staas
With the first catch of the Caucasian dwarf goby Knipowitschia cf. caucasica at the Lower Rhine, we now describe the distribution in this area, add first data on the population structure and feeding in the new habitat and draw attention to this new member of the fish community in western European countries.

Uncovering key metabolic determinants of the drug interactions between trimethoprim and erythromycin in Escherichia coli

Qin Qi, S Andreas Angermayr & Tobias Bollenbach
Understanding interactions between antibiotics used in combination is an important theme in microbiology. Using the interactions between the antifolate drug trimethoprim and the ribosome-targeting antibiotic erythromycin in Escherichia coli as a model, we applied a transcriptomic approach for dissecting interactions between two antibiotics with different modes of action. When trimethoprim and erythromycin were combined, the transcriptional response of genes from the sulfate reduction pathway deviated from the dominant effect of trimethoprim on the transcriptome. We...

Supplemental Data to: Mediterranean Diet, Alzheimer Disease Biomarkers, and Brain Atrophy in Old Age

Tommaso Ballarini, Debora Melo Van Lent, Julia Brunner, Alina Schröder, Steffen Wolfsgruber, Slawek Altenstein, Frederic Brosseron, Katharina Buerger, Peter Dechent, Laura Dobisch, Emrah Düzel, Birgit Ertl-Wagner, Klaus Fliessbach, Silka Dawn Freiesleben, Ingo Frommann, Wenzel Glanz, Dietmar Hauser, John Dylan Haynes, Michael T. Heneka, Daniel Janowitz, Ingo Kilimann, Christoph Laske, Franziska Maier, Coraline Danielle Metzger, Matthias H. Munk … & Michael Wagner
Objective: To determine whether following a Mediterranean-like diet (MeDi) relates to cognitive functions and in vivo biomarkers for Alzheimer disease (AD), we analyzed cross-sectional data from the German DZNE-Longitudinal Cognitive Impairment and Dementia Study. Method: The sample (n = 512, mean age 69.5 ± 5.9 years) included 169 cognitively normal participants and individuals at higher AD risk (53 with relatives with AD, 209 with subjective cognitive decline, and 81 with mild cognitive impairment). We defined...

Repositories for taxonomic data: Where we are and what is missing

Aurélien Miralles, Teddy Bruy, Katherine Wolcott, Mark Scherz, Dominik Begerow, Bank Beszteri, Michael Bonkowski, Janine Felden, Birgit Gemeinholzer, Frank Glaw, Frank Oliver Glöckner, Oliver Hawlitschek, Ivaylo Kostadinov, Tim Nattkemper, Christian Printzen, Jasmin Renz, Nataliya Rybalka, Marc Stadler, Tanja Weibulat, Thomas Wilke, Susanne Renner & Miguel Vences
Natural history collections are leading successful large-scale projects of specimen digitization (images, metadata, DNA barcodes), transforming taxonomy into a big data science. Yet, little effort has been directed towards safeguarding and subsequently mobilizing the considerable amount of original data generated during the process of naming 15–20,000 species every year. From the perspective of alpha-taxonomists, we provide a review of the properties and diversity of taxonomic data, assess their volume and use, and establish criteria for...

Textkorpus TSK. Forschungsprojekt

Thorste Pohl, Gerhard Augst, Paul-Ludwig Völzing, Katrin Disselhoff & Alexandra Henrich
The TSK corpus comprises 585 texts written by 39 pupils in German. The texts originate from a longitudinal study on the development of textual competence in primary school age conducted at the University of Siegen. Two classes were used to determine how children's ability to write texts develops in the 2nd, 3rd, and 4th grades within the context of different communicative demands (text types): narrative, report, instructional, descriptive, and argumentative. The survey period was between...

Registration Year

  • 2021
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  • Dataset
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Affiliations

  • University of Cologne
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  • University of Göttingen
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  • University of Giessen
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  • Ludwig Maximilian University of Munich
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  • Capital Normal University
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  • Senckenberg Nature Research Society
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  • British Antarctic Survey
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