121 Works

Data from: \"NGS based generation of expressed sequence tags for Lymantria dispar and Lymantria monacha, two closely related lepidopteran species with different responses to parasitism by Glyptapanteles liparidis\" in Genomic Resources Notes accepted 1 December 2013 to 31 January 2014

Wolfgang Arthofer, Birgit C. Schlick-Steiner, Florian M. Steiner, Christa Schafellner, Gregor A. Wachter, Anthony R. Clarke, Nagalingam Kumaran & Peter J. Prentis
Introduction: The gypsy moth, Lymantria dispar, and the nun moth, Lymantria monacha, are closely related species (Lepidoptera, Lymantriidae), co-seasonal and economically important forest pests on broadleaf and coniferous trees. In Central Europe, gypsy moth larvae are frequently parasitized by the gregarious, endoparasitic wasp Glyptapanteles liparidis (Hymenoptera, Braconidae). At oviposition, the female wasp injects between 10 and up to 100 eggs into the hemocoel of a single host larva, together with venom and calyx fluid containing...

Data from: Evidence for a recent horizontal transmission and spatial spread of Wolbachia from endemic Rhagoletis cerasi (Diptera: Tephritidae) to invasive Rhagoletis cingulata in Europe

Hannes Schuler, Coralie Bertheau, Scott P. Egan, Jeffrey L. Feder, Markus Riegler, Birgit C. Schlick-Steiner, Florian M. Steiner, Jes Johannesen, Peter Kern, Katalin Tuba, Ferenc Lakatos, Kirsten Köppler, Wolfgang Arthofer & Christian Stauffer
The widespread occurrence of Wolbachia in arthropods and nematodes suggests that this intracellular, maternally inherited endosymbiont has the ability to cross species boundaries. However, direct evidence for such a horizontal transmission of Wolbachia in nature is scarce. Here, we compare the well-characterized Wolbachia infection of the European cherry fruit fly, Rhagoletis cerasi, with that of the North American eastern cherry fruit fly, Rhagoletis cingulata, recently introduced to Europe. Molecular genetic analysis of Wolbachia based on...

Vergleich der DMP-Tools RDMO, DMPRoadmap und Data Steward Wizard

Thomas Haselwanter, Tomasz Miksa & Heike Thöricht

Abschlussarbeiten und Open Access

Struggling the Beast

Ulrich Pallua

Data from: Epigenome-wide association study of lung function level and its change

Medea Imboden, Matthias Wielscher, Faisal I Rezwan, Andre F S Amaral, Emmanuel Schaffner, Ayoung Jeong, Anna Beckmeyer-Borowko, Sarah E Harris, John M Starr, Ian J Deary, Claudia Flexeder, Melanie Waldenberger, Annette Peters, Holger Schulz, Su Chen, Shadia KHan Sunny, Wilfried J J Karmaus, Yu Jiang, Gertraud Erhart, Florian Kronenberg, Ryan Arathimos, Gemma C Sharp, Alexander John Henderson, Yu Fu, Paivi Piirila … & Nicole M Probst-Hensch
Previous reports link differential DNA methylation (DNAme) to environmental exposures which are associated with lung function. Direct evidence on lung function DNAme is however limited. We undertook an agnostic epigenome-wide association study (EWAS) on pre-bronchodilation lung function and its change in adults. In a discovery-replication EWAS design, DNAme in blood and spirometry were measured twice, six-to-15 years apart, in the same participants of three adult population-based discovery cohorts (n=2,043). Associated DNAme markers (P<5x10-7) were tested...

Data from: Does hybridization with a widespread congener threaten the long-term persistence of the Eastern Alpine rare local endemic Knautia carinthiaca?

Martin Čertner, Filip Kolář, Peter Schönswetter & Božo Frajman
Interspecific hybridization, especially when regularly followed by backcrossing (i.e., introgressive hybridization), conveys a substantial risk for many endangered organisms. This is particularly true for narrow endemics occurring within distributional ranges of widespread congeners. An excellent example is provided by the plant genus Knautia (Caprifoliaceae): Locally endemic K. carinthiaca is reported from two isolated populations in southern Austria situated within an area predominantly occupied by widespread K. arvensis. While K. carinthiaca usually inhabits low-competition communities on...

Data from: Biogeography of plant root-associated fungal communities in the North-Atlantic region mirrors climatic variability

Synnøve Smebye Botnen, Marie L. Davey, Anders B. Aas, Tor Carlsen, Ella Thoen, Einar Heegaard, Unni Vik, Philipp Dresch, Sunil Mundra, Ursula Peintner, Andy F.S. Taylor & Håvard Kauserud
Aim Polar and alpine ecosystems appear to be particularly sensitive to increasing temperatures and the altered precipitation patterns linked to climate change. However, little is currently known about how these environmental drivers may affect edaphic organisms within these ecosystems. In this study, we examined communities of plant root-associated fungi (RAF) over large biogeographic scales and along climatic gradients in the North Atlantic region in order to gain insights into the potential effects of climate variability...

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,...

Data from: Effects of prey quality and predator body size on prey DNA detection success in a centipede predator

Bernhard Eitzinger, Einar Michael Unger, Michael Traugott & Stefan Scheu
Predator body size and prey quality are important factors driving prey choice and consumption rates. Both factors might affect prey detection success in PCR-based gut content analysis, potentially resulting in over- or underestimation of feeding rates. Experimental evidence, however, is scarce. We examined how body size and prey quality affect prey DNA detection success in centipede predators. Due to metabolic rates increasing with body size, we hypothesized that prey DNA detection intervals will be significantly...

Data from: Rapid evolution of antioxidant defense in a natural population of Daphnia magna

Sarah Oexle, Mieke Jansen, Kevin Pauwels, Ruben Sommaruga, Luc De Meester & Robby Stoks
Natural populations can cope with rapid changes in stressors by relying on sets of physiological defense mechanisms. Little is known onto what extent these physiological responses reflect plasticity and/or genetic adaptation, evolve in the same direction and result in an increased defense ability. Using resurrection ecology, we studied how a natural Daphnia magna population adjusted its antioxidant defense to ultraviolet radiation (UVR) during a period with increasing incident UVR reaching the water surface. We demonstrate...

Data from: \"De novo transcriptome assembly of the mountain fly Drosophila nigrosparsa using short RNA-seq reads\" in Genomic Resources Notes Accepted 1 August 2014-30 September 2014

Wolfgang Arthofer, Francesco Cicconardi, Nicola Palmieri, Viola Nolte, Christian Schlötterer, Birgit C. Schlick-Steiner, Florian M. Steiner, Marcelo Vallinoto, David A. Weese, B. L. Banbury, R. B. Harris, David S. Kang, Cheolho Sim, Thomas F. Duda, A. D. Leaché, Miguel Carneiro, Coralie Nourisson & Fernando Sequeira
Drosophila (Drosophila) nigrosparsa is a habitat specialist restricted to the European montane/alpine zone (Bächli 2008). Mountain biodiversity is considered highly vulnerable to ongoing climate warming (IPCC 2013), and organisms at high altitudes have only limited possibility to shift to cooler habitats at elevations above (Pertoldi & Bach 2007). For such species, rapid evolution may offer a solution for long-term survival. We are establishing D. nigrosparsa as a model system to test the extent and tempo...

Data from: Habitat heterogeneity induces rapid changes in the feeding behaviour of generalist arthropod predators

Karin Staudacher, Oskar Rennstam Rubbmark, Klaus Birkhofer, Gerard Malsher, Daniela Sint, Mattias Jonsson & Michael Traugott
1. The “habitat heterogeneity hypothesis” predicts positive effects of structural complexity on species coexistence. Increasing habitat heterogeneity can change the diversity (number of species, abundances) and the functional roles of communities. The latter, however, is not well understood as species and individuals may respond very differently and dynamically to a changing environment. 2. Here, we experimentally test how habitat heterogeneity affects generalist arthropod predators, including epigaeic spiders, carabid and staphylinid beetles, under natural conditions by...

Data from: Molecular prey identification in Central European piscivores

Bettina Thalinger, Johannes Oehm, Hannes Mayr, Armin Obwexer, Christiane Zeisler & Michael Traugott
Diet analysis is an important aspect when investigating the ecology of fish-eating animals and essential for assessing their functional role in food webs across aquatic and terrestrial ecosystems. The identification of fish remains in dietary samples, however, can be time-consuming and unsatisfying using conventional morphological analysis of prey remains. Here, we present a two-step multiplex PCR system, comprised of six assays, allowing for rapid, sensitive and specific detection of fish DNA in dietary samples. This...

Data from: \"You are not what you eat: massive parallel sequencing reveals that gut microbiome is not diet-related in larval Dilophus febrilis (Diptera: Bibionidae)\" in Genomic Resources Notes Accepted 1 June 2015 to 31 July 2015

Alexander Rief, Wolfgang Arthofer, Birgit C. Schlick-Steiner, Florian M. Steiner & Julia Seeber
This article documents the public availability of metagenome sequence data from 454 amplicon sequencing of larval dipteran gut (Dilophus febrilis) and their potential food sources dwarf shrub litter (Vaccinium gaultheroides), grass litter (Dactylis glomerata), and cow dung (Bos primigenius taurus).

Wolbachia affect behavior and possibly reproductive compatibility but not thermoresistance, fecundity, and morphology in a novel transinfected host, Drosophila nigrosparsa

Matsapume Detcharoen, Wolfgang Arthofer, Francis Jiggins, Florian Steiner & Birgit Schlick-Steiner
Wolbachia, intracellular endosymbionts, are estimated to infect about half of all arthropod species. These bacteria manipulate their hosts in various ways for their maximum benefits. The rising global temperature may accelerate species migration and, thus, horizontal transfer of Wolbachia may occur across species previously not in contact. We transinfected and then cured the alpine fly Drosophila nigrosparsa with Wolbachia strain wMel to study its effects on this species. We found low Wolbachia titer, possibly cytoplasmic...

Verfassungsrechtliche Aspekte ausgewählter Tiroler Corona-Maßnahmen

Florian Klebelsberg
Für das Bundesland Tirol wurden im Zuge der Corona-Pandemie mehrfach besondere Maßnahmen von Bundes- und Landesseite erlassen. Im März 2020 wurden die österreichweit ersten Maßnahmen in Tirol gesetzt; als wenig später bundesweite Beschränkungen verhängt wurden, waren diese in Tirol strenger formuliert. Rund ein Jahr nach Beginn der Ausbreitung von COVID-19 in Österreich wurde Tirol erneut gesondert behandelt, indem für fast den gesamten Teil des Landesgebiets eine Ausreisetestpflicht festgelegt wurde. All diesen Maßnahmen ist gemein, dass...

Relationships between plant-soil feedbacks and functional traits

Nianxun Xi, Peter Adler, Dongxia Chen, Hangyu Wu, Jane Catford, Peter Van Bodegom, Michael Bahn, Kerri Crawford & Chengjin Chu
Plant-soil feedbacks (PSF) and functional traits are two active but not well theoretically integrated areas of research. However, PSF and traits are both affected by life history evolution, so the two should theoretically be related. We provide a conceptual framework to link plant functional traits to two types of PSF metrics, and hypothesize that individual PSF (plant performance in conspecific versus heterospecific soil) should be related to the fast-slow trait spectrum, while pairwise PSF (the...

Data from: Different functional characteristics can explain different dimensions of plant invasion success

Huixuan Liao, Robert Pal, Ülo Niinemets, Michael Bahn, Bruno Cerabolini & Shao-Lin Peng
The success of invasive plant species can be evaluated using different dimensions, such as, range size, abundance, and impact. These different dimensions do not always covary but are rarely separated, suggesting an urgency to disentangle the functional mechanisms behind them. A dataset of leaf traits and four dimensions of invasion success (i.e., range size, local abundance, impact on native plant abundance, and impact on native plant diversity) were compiled for 395 non-native plant species in...

Data from: \"Transcriptome sequencing of the Antarctic Colobanthus quitensis (Kunth) Bartl (Caryophillaceae)\" in Genomic Resources Notes Accepted 1 February 2015 – 31 March 2015

Laura Bertini, Silvia Proietti & Carla Caruso
This article documents the public availability of raw transcriptome sequence data and assembled contigs of the Antarctic plant Colobanthus quitensis grown in two different climatic conditions. BLAST hits are also provided.

Data from: Testing the efficiency of nested barriers to dispersal in the Mediterranean high mountain plant Edraianthus graminifolius (Campanulaceae)

Boštjan Surina, Gerald M. Schneeweiss, Peter Glasnović & Peter Schönswetter
Due to strong spatial heterogeneity and limited Pleistocene glaciation, the Balkan Peninsula is a major European biodiversity hotspot. Surprisingly little, however, is known about patterns and processes of intraspecific diversification of its biota in general and of high altitude species in particular. A well-suited system to test hypotheses with respect to various isolating factors acting at different geographic scales and to explore full-range phylogeographic patterns on the Balkan Peninsula is Edraianthus graminifolius (Campanulaceae), distributed in...

Data from: Taking the discovery approach in integrative taxonomy: decrypting a complex of narrow-endemic Alpine harvestmen (Opiliones: Phalangiidae: Megabunus)

Gregor A. Wachter, Christoph Muster, Wolfgang Arthofer, Günther Raspotnig, Petra Föttinger, Christian Komposch, Florian M. Steiner & Birgit C. Schlick-Steiner
Species delimitation is fundamental for biological studies, yet precise delimitation is not an easy task, and every involved approach has an inherent failure rate. Integrative taxonomy, a method that merges multiple lines of evidence, can profoundly contribute to reliable alpha taxonomy and shed light on the processes behind speciation. In this study, we explored and validated species limits in a group of closely related Megabunus harvestmen (Eupnoi, Phalangiidae) endemic to the European Alps. Without a...

Data from: Increased breakdown of kynurenine towards its neurotoxic branch in bipolar disorder

Armin Birner, Martina Platzer, Susanne Astrid Bengesser, Nina Dalkner, Frederike T. Fellendorf, Robert Queissner, Rene Pilz, Philipp Rauch, Alexander Maget, Carlo Hamm, Simone Herzog-Eberhard, Harald Mangge, Dietmar Fuchs, Natalie Moll, Sieglinde Zelzer, Gregor Schütze, Markus Schwarz, Bernd Reininghaus, Hans-Peter Kapfhammer & Eva Z. Reininghaus
Introduction Bipolar disorder (BD) is a chronic psychiatric disease which can take most different and unpredictable courses. It is accompanied by unspecific brainstructural changes and cognitive decline. The neurobiological underpinnings of these processes are still unclear. Emerging evidence suggests that tryptophan catabolites (TRYCATs), which involve all metabolites of tryptophan towards the kynurenine (KYN) branch, are involved in the etiology as well as in the course of BD. They are proposed to be mediators of immune-inflammation...

Data from: Drought history affects grassland plant and microbial carbon turnover during and after a subsequent drought event

Lucia Fuchslueger, Michael Bahn, Roland Hasibeder, Sandra Kienzl, Karina Fritz, Michael Schmitt, Margarete Watzka & Andreas Richter
Drought periods are projected to become more severe and more frequent in many European regions. While effects of single strong droughts on plant and microbial carbon (C) dynamics have been studied in some detail, impacts of recurrent drought events are still little understood. We tested whether the legacy of extreme experimental drought affects responses of plant and microbial C and nitrogen (N) turnover to further drought and rewetting. In a mountain grassland we conducted a...

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