95 Works

Data from: Haemoglobin-mediated response to hyper-thermal stress in the keystone species Daphnia magna

Maria Cuenca Cambronero, Bettina Zeis & Luisa Orsini
Anthropogenic global warming has become a major geological and environmental force driving drastic changes in natural ecosystems. Due to the high thermal conductivity of water and the effects of temperature on metabolic processes, freshwater ecosystems are among the most impacted by these changes. The ability to tolerate changes in temperature may determine species long-term survival and fitness. Therefore, it is critical to identify coping mechanisms to thermal and hyper-thermal stress in aquatic organisms. A central...

Data from: A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance

Megan A. M. Kutzer, Joachim Kurtz & Sophie A. O. Armitage
1. Hosts can alter their strategy towards pathogens during their lifetime, i.e., they can show phenotypic plasticity in immunity or life history. Immune priming is one such example, where a previous encounter with a pathogen confers enhanced protection upon secondary challenge, resulting in reduced pathogen load (i.e. resistance) and improved host survival. However, an initial encounter might also enhance tolerance, particularly to less virulent opportunistic pathogens that establish persistent infections. In this scenario, individuals are...

Data from: Growth and survival of the superorganism: ant colony macronutrient intake and investment

Chris Smith & Yeisson Gutierrez
In this study, we used two common ant species (Lasius niger and L. neoniger) to assay how they translate variation in the diet (both in composition and frequency) into growth. We measured colony development for over 8 months and measured several phenotypic traits of the worker caste, and examined whether forager preference corresponded with diet quality. Optimal colony growth was a balance between survival and growth, and each of these were maximized with different nutrient...

Data and code for: Replay of innate vocal patterns during sleep in suboscines

Juan Francisco Döppler, Manon Peltier, Ana Amador, Franz Goller & Gabriel Mindlin
Activation of forebrain circuitry during sleep has been variably characterized as ‘pre- or replay’ and has been linked to memory consolidation. The evolutionary origins of this mechanism, however, are unknown. Sleep activation of the sensori-motor pathways of learned birdsong is a particularly useful model system because the muscles controlling the vocal organ are activated, revealing syringeal activity patterns for direct comparison with those of day-time vocal activity. Here we show that suboscine birds, which develop...

Mehr Frauen im neuen Bundestag : Eine Analyse aus der Geschlechterperspektive

Lea Rabe
Der Frauenanteil im neu gewählten 20. Bundestag ist wieder leicht gestiegen. 34,7 % der Abgeordneten sind weiblich – unter ihnen auch erstmalig zwei offen lebende trans Frauen. Der Anstieg lässt sich vor allem auf die Stimmenzuwächse bei den GRÜNEN zurückführen. Dennoch sind Frauen, verglichen mit der Gesamtbevölkerung, zahlenmäßig unterrepräsentiert. Das liegt an den Nominierungsverfahren und einer maskulinisierten Parteikultur, die Interessentinnen nach wie vor abschreckt und vor Vereinbarkeitsprobleme stellt. Die Analyse des Wahlergebnisses zeigt: Parteiinterne Wahllistenquotierungen...

Restoration of orchid-rich dry calcareous grasslandsby rotational goat pasturing

Martina Köhler, Daniel Elias, Georg Hiller, Hölzel Norbert & Sabine Tischew

Pflanzengesellschaft des Jahres 2021: Hartholz-Auenwald (Ficario-Ulmetum)

Werner Härdtle, Erwin Bergmeier, Andreas Fichtner, Thilo Heinken, Norbert Hölzel, Dominique Remy, Simone Schneider, Angelika Schwabe, Sabine Tischew & Hartmut Dierschke
Hardwood floodplain forests (Ficario-Ulmetum, Syn.: Querco-Ulmetum), being amongst the most endangered plant communities in Germany, have been selected as ‘Plant community of the year 2021’ by the Floristisch-soziologische Arbeitsgemeinschaft. Hardwood floodplain forests are temperate low-land broad-leaved forest ecosystems typical of extensive river valleys. In Central Europe, stands represent biodiversity hotspots for woody species (as habitats for rare tree species such as Ulmus laevis and Populus nigra), but also host numerous fungi and animal species typical...

Multikriterielle Bewertung der Energiewende. Nachhaltigkeitsprofile zum Kohleausstieg

Armin Bangert, Ulrich Fahl, Hannes Gaschnig, Claudia Hofer, Oliver Kaltenegger, Jürgen Kopfmüller, Christian Loos, Andreas Löschel, Robert Pietzcker, Michael Quante, Ortwin Renn, Rainer Quitzow, Sabine Schlacke, Volker Stelzer, Daniel Schnittker, Pablo Thier & Gerald Zunker

Insta-girlhood and the Limits of #MeToo Life Writing

Silvia Schultermandl

Ackerwildkraut-Vegetation der Kalkäcker (Caucalidion): Pflanzengesellschaft des Jahres 2022

Erwin Bergmeier, Stefan Meyer, Fionn Pape, Hartmut Dierschke, Werner Härdtle, Thilo Heinken, Norbert Hölzel, Dominique Remy, Angelika Schwabe, Sabine Tischew & Simone Schneider
Als Pflanzengesellschaft des Jahres 2022 ist die Ackerwildkraut-Vegetation der Kalkäcker, der Ver- band Caucalidion, ausgewählt worden. In diesem Übersichtsartikel stellen wir den Verband vor und betrachten dabei seine Artenzusammensetzung und -diversität, Verbreitung, standörtliche und pflanzen- soziologische Variabilität, das Ökosystem „Kalkacker”, die früher und heute wirksamen Faktoren des Ackerbaus und die Ursachen des massiven Rückgangs in den letzten Jahrzehnten. Schließlich beleuch- ten wir Optionen zur Erhaltung und Wiederherstellung artenreicher Caucalidion-Vegetation und der von ihnen abhängigen Lebensgemeinschaften....

Data from: Downregulation of the evolutionary capacitor Hsp90 is mediated by social cues

Robert Peuß, Hendrik Eggert, Sophie A. O. Armitage & Joachim Kurtz
The relationship between robustness and evolvability is a long-standing question in evolution. Heat shock protein 90 (HSP90), a molecular chaperone, has been identified as a potential capacitor for evolution, since it allows for the accumulation and release of cryptic genetic variation, and also for the regulation of novel genetic variation through transposon activity. However, to date, it is unknown whether Hsp90 expression is regulated upon demand (i.e. when the release of cryptic genetic variation is...

Data from: Male pregnancy and bi-parental immune priming

Olivia Roth, Verena Klein, Anne Beemelmanns, Jörn P. Scharsack & Thorsten B. H. Reusch
In vertebrates, maternal transfer of immunity via the eggs or the placenta provides offspring with crucial information on prevailing pathogens and parasites. Males contribute little to such trans-generational immune priming, either because they do not share the environment and parasite pressure of the offspring, or because sperm are suggested to be too small for transfer of immunity. In the teleost group of Syngnathids (pipefish, seahorses and sea dragons) males brood female eggs in a placenta-like...

Data from: Dichoptic metacontrast masking functions to infer transmission delay in optic neuritis

Maximilian Bruchmann, Catharina Korsukewitz, Julia Krämer, Heinz Wiendl & Sven G. Meuth
Optic neuritis (ON) has detrimental effects on the transmission of neuronal signals generated at the earliest stages of visual information processing. The amount, as well as the speed of transmitted visual signals is impaired. Measurements of visual evoked potentials (VEP) are often implemented in clinical routine. However, the specificity of VEPs is limited because multiple cortical areas are involved in the generation of P1 potentials, including feedback signals from higher cortical areas. Here, we show...

Data from: Geographical variation in the heterogeneity of mutualistic networks

Shoko Sakai, Sören Metelmann, Yukihiko Toquenaga & Arndt Telshow
Plant–animal mutualistic networks are characterized by highly heterogeneous degree distributions. The majority of species interact with few partner species, while a small number are highly connected to form network hubs that are proposed to play an important role in community stability. It has not been investigated, however, if or how the degree distributions vary among types of mutualisms or communities, or between plants and animals in the same network. Here, we evaluate the degree distributions...

Data from: The effect of diet and time after bacterial infection on fecundity, resistance, and tolerance in Drosophila melanogaster

Megan A. M. Kutzer & Sophie A. O. Armitage
Mounting and maintaining an effective immune response in the face of infection can be costly. The outcome of infection depends on two host immune strategies: resistance and tolerance. Resistance limits pathogen load, while tolerance reduces the fitness impact of an infection. While resistance strategies are well studied, tolerance has received less attention, but is now considered to play a vital role in host–pathogen interactions in animals. A major challenge in ecoimmunology is to understand how...

Data from: Perceptually relevant speech tracking in auditory and motor cortex reflects distinct linguistic features

Anne Keitel, Joachim Gross & Christoph Kayser
During online speech processing, our brain tracks the acoustic fluctuations in speech at different timescales. Previous research has focused on generic timescales (for example, delta or theta bands) that are assumed to map onto linguistic features such as prosody or syllables. However, given the high intersubject variability in speaking patterns, such a generic association between the timescales of brain activity and speech properties can be ambiguous. Here, we analyse speech tracking in source-localised magnetoencephalographic data...

Data from: True homoplasy of retrotransposon insertions in primates

Liliya Doronina, Olga Reising, Hiram Clawson, David A. Ray & Jürgen Schmitz
How reliable are the presence/absence insertion patterns of the supposedly homoplasy-free retrotransposons, that were randomly inserted in the quasi infinite genomic space? To systematically examine this question in an up-to-date, multi-genome comparison, we screened millions of primate transposed Alu SINE elements for incidences of homoplasious precise insertions and deletions. In genome-wide analyses, we identified and manually verified nine cases of precise parallel Alu insertions of apparently identical elements at orthologous positions in two ape lineages...

Data from: A barrier island perspective on species-area-relationships

Christoph Scherber, Hagen Andert, Rolf Niedringhaus & Teja Tscharntke
Predictions of species richness by island area are a classical cornerstone in ecology, while the specific features of barrier islands have been little appreciated. Many shorelines are occupied by barrier islands, which are shaped by offshore sedimentation processes and annual storm tide events. Hence, the appearance of these islands may vary between years if they are not protected by dykes. Here, we analyzed more than 2,990 species across 36 taxonomic groups (including vertebrates, invertebrates and...

Data from: Consequences of divergent temperature optima in a host-parasite system

Frederik Franke, Nadja Raifarth, Joachim Kurtz & Jörn Peter Scharsack
It was suggested that parasite infections become more severe with rising temperature, as expected during global warming. In ectothermic systems, the growth of a parasite and therefore its reproductive capacity is expected to increase with temperature. However, the outcome of the interaction depends on the temperature optima of both host and parasite. Here we used experimental infections of three-spined stickleback fish (Gasterosteus aculeatus) with its specific tapeworm parasite Schistocephalus solidus to investigate in detail the...

Data from: Exposure to males, but not receipt of sex peptide, accelerates functional aging in female fruit flies

Amanda Bretman & Claudia Fricke
Increased exposure to males can affect females negatively, reducing female lifespan and fitness. These costs could derive from increased mating rate and also harassment by males. Additionally, early investment in reproduction can increase the onset or rate of senescence in reproductive traits. Hence, there is a tight link between reproduction and aging. Here, we assess how mating and encounter rate with males impacts declines in female functional traits that are not directly involved in reproduction....

Evidence for reduced immune gene diversity and activity during the evolution of termites

Shulin He, Thorben Sieksmeyer, Yanli Che, M. Alejandra Esparza Mora, Ronald Banasiak, Mark C. Harrison, Petr Stiblik, Šobotník Jan, Zongqing Wang, Paul Johnston, Dino P. McMahon, Jan Šobotník & Paul R. Johnston
This dataset contains data from a termite immunity related study described in the paper: “He Shulin, Sieksmeyer Thorben, Che Yanli, Mora M. Alejandra Esparza, Stiblik Petr, Banasiak Ronald, Harrison Mark C., Šobotník Jan, Wang Zongqing, Johnston Paul R. and McMahon Dino P. 2021Evidence for reduced immune gene diversity and activity during the evolution of termitesProc. R. Soc. B.288:20203168.http://doi.org/10.1098/rspb.2020.3168”. The study investigates the evolution of termite molecular immune system: evolution of immune gene family along a...

Data from: Comparative transcriptomic analysis of the mechanisms underpinning ageing and fecundity in social insects

Judith Korb, Karen Meusemann, Denise Aumer, Abel Bernadou, Daniel Elsner, Barbara Feldmeyer, Susanne Foitzik, Jürgen Heinze, Romain Libbrecht, Silu Lin, Megha Majoe, José Manuel Monroy Kuhn, Volker Nehring, Matteo A. Negroni, Robert J. Paxton, Alice C. Séguret, Marah Stoldt & Thomas Flatt
Exceptional longevity of social insect queens despite their lifelong high fecundity remains poorly understood in ageing biology. To gain insights into the mechanisms that might underlie ageing in social insects, we compared gene expression patterns between young and old castes (both queens and workers) across different lineages of social insects (two termite, two bee and two ant species). After global analyses, we paid particular attention to genes of the insulin/insulin-like growth factor 1 signalling (IIS)/target...

Data from: Plant provenance affects pollinator network: implications for ecological restoration

Anna Bucharova, Christian Lampei, Malte Conrady, Janis Matheja, Emilia May, Michael Meyer & David Ott
The selection of plant provenance for ecological restoration is an intensively debated topic. Throughout this debate, arguments mostly focus on plant performance, but little attention is paid to the effects of provenance on other members of the restored ecosystem. On the other hand, in restoration projects that focus specifically on supporting interacting biota, for example, flower stripes among fields to support pollinators, the provenance choice is often not considered, partly because the effect of provenance...

Data from: The representational dynamics of perceived voice emotions evolve from categories to dimensions

Bruno L. Giordano, Caroline Whiting, Nikolaus Kriegeskorte, Sonja A. Kotz, Joachim Gross & Pascal Belin
Long-standing affective science theories conceive the perception of emotional stimuli either as discrete categories (for example, an angry voice) or continuous dimensional attributes (for example, an intense and negative vocal emotion). Which position provides a better account is still widely debated. Here we contrast the positions to account for acoustics-independent perceptual and cerebral representational geometry of perceived voice emotions. We combined multimodal imaging of the cerebral response to heard vocal stimuli (using functional magnetic resonance...

Data from: On the objectivity, reliability, and validity of deep learning enabled bioimage analyses

Dennis Segebarth, Matthias Griebel, Nikolai Stein, Cora R. Von Collenberg, Corinna Martin, Dominik Fiedler, Lucas B. Comeras, Anupam Sah, Victoria Schoeffler, Theresa Lüffe, Alexander Dürr, Rohini Gupta, Manju Sasi, Christina Lillesaar, Maren D. Lange, Ramon O. Tasan, Nicolas Singewald, Hans-Christian Pape, Christoph M. Flath & Robert Blum
Bioimage analysis of fluorescent labels is widely used in the life sciences. Recent advances in deep learning (DL) allow automating time-consuming manual image analysis processes based on annotated training data. However, manual annotation of fluorescent features with a low signal-to-noise ratio is somewhat subjective. Training DL models on subjective annotations may be instable or yield biased models. In turn, these models may be unable to reliably detect biological effects. An analysis pipeline integrating data annotation,...

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  • University of Münster
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