17 Works

Data from: Bobbing and fin-flicking in a small benthic fish

Matteo Santon, Felix Deiss, Bitton Pierre-Paul & Nico K. Michiels
Most anti-predator strategies increase survival of individuals by signalling to predators, by reducing the chances of being recognised as prey, or by bewildering a predator's perception. In fish, bobbing and fin-flicking are commonly considered as pursuit‑deterrent behaviours that signal a predator that it has been detected and thus lost its surprise-attack advantage. Yet, very few studies assessed whether such behavioural traits are restricted to the visual presence of a predator. In this study, we used...

Species-specific effects of thermal stress on the expression of genetic variation across a diverse group of plant and animal taxa under experimental conditions

Klaus Fischer, Jürgen Kreyling, Michaël Beaulieu, Ilka Beil, Manuela Bog, Dries Bonte, Stefanie Holm, Sabine Knoblauch, Dustin Koch, Lena Muffler, Pierick Mouginot, Maria Paulinich, J.F. Scheepens, Raijana Schiemann, Jonas Schmeddes, Martin Schnittler, Gabriele Uhl, Marieke Van Der Maaten-Theunissen, Julia M. Weier, Martin Wilmking, Robert Weigel & Phillip Gienapp
Assessing the genetic adaptive potential of populations and species is essential for better understanding evolutionary processes. However, the expression of genetic variation may depend on environmental conditions, which may speed up or slow down evolutionary responses. Thus, the same selection pressure may lead to different responses. Against this background, we here investigate the effects of thermal stress on genetic variation, mainly under controlled laboratory conditions. We estimated additive genetic variance (VA), narrow-sense heritability (h2), and...

Rapid adaptive evolution to drought in a subset of plant traits in a large-scale climate change experiment

Johannes Metz, Christian Lampei, Laura Bäumler, Hervé Bocherens, Hannes Dittberner, Lorenz Henneberg, Juliette De Meaux & Katja Tielbörger
Rapid evolution of traits and of plasticity may enable adaptation to climate change, yet solid experimental evidence under natural conditions is scarce. Here, we imposed rainfall manipulations (+30%, control, -30%) for ten years on entire natural plant communities in two Eastern Mediterranean sites. Additional sites along a natural rainfall gradient and selection analyses in a greenhouse assessed whether potential responses were adaptive. In both sites, our annual target species Biscutella didyma consistently evolved earlier phenology...

Data from: An ECF-type transporter scavenges heme to overcome iron-limitation in Staphylococcus lugdunensis

Angelika Jochim & Simon Heilbronner
Energy-coupling factor type (ECF-transporters) represent trace nutrient acquisition systems. Substrate binding components of ECF-transporters are membrane proteins with extraordinary affinity, allowing them to scavenge trace amounts of ligand. A number of molecules have been described as substrates of ECF-transporters, but an involvement in iron-acquisition is unknown. Host-induced iron limitation during infection represents an effective mechanism to limit bacterial proliferation. We identified the iron-regulated ECF-transporter Lha in the opportunistic bacterial pathogen Staphylococcus lugdunensis and show that...

Data from: Biomass–density relationships of plant communities deviate from the self‐thinning rule due to age structure and abiotic stress

Maximiliane Herberich, Sebastian Gayler, Madhur Anand, Katja Tielbörger & Maximiliane Marion Herberich
A pertinent debate in plant ecology centers around the generality of the self-thinning rule. However, studies focused on highly simplified settings such as even-aged monospecific populations or optimal conditions. This neglects the fact that most natural communities, to which the classical self-thinning slope is often applied, are age-structured, composed of multiple species and exposed to various types of abiotic stress. With the help of an individual-based model, we relax these simplified assumptions and systematically test...

Natural history, phenotypic spectrum, and discriminative features of multisystemic RFC1-disease

Andreas Traschütz, Andrea Cortese, Selina Reich, Natalia Dominik, Jennifer Faber, Heike Jacobi, Annette Hartmann, Dan Rujescu, Solveig Montaut, Andoni Echaniz-Laguna, Sevda Erer, Valerie Cornelia Schütz, Alexander Tarnutzer, Marc Sturm, Tobias Haack, Nadège Vaucamps-Diedhiou, Helene Puccio, Ludger Schöls, Thomas Klockgether, Bart P. Van De Warrenburg, Martin Paucar, Dagmar Timmann, Ralf-Dieter Hilgers, Jose Gazulla, Michael Strupp … & Matthis Synofzik
Objective: To delineate the full phenotypic spectrum, discriminative features, piloting longitudinal progression data, and sample size calculations of RFC1-repeat expansions, recently identified as causing cerebellar ataxia, neuropathy, vestibular areflexia syndrome (CANVAS). Methods: Multimodal RFC1 repeat screening (PCR, southern blot, whole-exome/genome (WES/WGS)-based approaches) combined with cross-sectional and longitudinal deep-phenotyping in (i) cross-European cohort A (70 families) with ≥2 features of CANVAS and/or ataxia-with-chronic-cough (ACC); and (ii) Turkish cohort B (105 families) with unselected late-onset ataxia. Results:...

Simulation of global warming effects on Theba pisana

Heinz Koehler
By use of open top chambers environmental warming was simulated in a field plot near Montfavet, Southern France. Differently (naturally and artificially) pigmented land snails (Theba pisana) were introduced and analysed for a number of biochemical, physiological and demographical parameters. A number of temperature measurements (internally in the snails and externally) were conducted. Furthermore, 35 Mediterranean field sites were characterized for their mean temperature of the warmest quarter of the year, and abundant T. pisana...

Relative effects of climate and litter traits on decomposition change with time, climate and trait variability

Rafaella Canessa, Liesbeth Van Den Brink, Alfredo Saldana, Rodrigo Rios, Stephan Hattenschwiler, Carsten Mueller, Isabel Prater, Katja Tielboerger & Maaike Bader
Climate and litter quality drive litter decomposition, but there is currently little consensus on their relative importance, likely because studies differ in the duration, the climatic gradients, and variability in litter-trait values. Understanding these drivers is important because they determine the direct and indirect (via vegetation composition) effects of climate change on decomposition and thereby on carbon and nutrient cycling. We studied how microclimate (soil moisture and temperature) and litter traits interactively affect litter mass...

Low-dose alemtuzumab induction in a tailored immunosuppression protocol for sensitized kidney transplant recipients

Martina Guthoff, Kilian Berger, Karina Althaus, Thomas Mühlbacher, Tamam Bakchoul, Wolfgang Steurer, Silvio Nadalin, Alfred Königsrainer & Nils Heyne
Background: Induction therapy is crucial in kidney transplantation and constitutes an important cornerstone for long-term allograft survival. Alemtuzumab is a depleting CD52-specific antibody with T and B cell activity, leading to prolonged lymphocyte depletion for up to 12 months, with profound immunosuppression and an associated risk of serious infections. Current concepts aim to optimize dosing strategies to reduce side effects. Here we present data from an ongoing centre protocol consisting of low-dose alemtuzumab induction and...

Ant foraging strategies vary along a natural resource gradient

Udi Segev, Katja Tielborger, Yael Lubin & Jaime Kigel
Food selection by foragers is sensitive to the availability of resources, which may vary along geographical gradients. Hence, selectivity of food types by foragers is expected to track these resource gradients. Here we addressed this hypothesis and asked if foraging decisions of seed-eating ants differ along a geographic gradient of habitat productivity. The study was carried out for two years at five sites along a natural climatic gradient, ranging from arid to Mediterranean, where plant...

Unravelling the habitat preferences of two closely related bumble bee species in Eastern Europe

Julia Geue & Henri Thomassen
Co-occurrence of closely related species is often explained through resource partitioning, where key morphological or life-history traits evolve under strong divergent selection. In bumble bees (genus Bombus), differences in tongue lengths, nest sites, and several life-history traits are the principal factors in resource partitioning. However, the buff-tailed and white-tailed bumble bee (Bombus terrestris and B. lucorum respectively) are very similar in morphology and life-history, but their ranges nevertheless partly overlap, raising the question how they...

Fovea-like photoreceptor specialisations underlie single UV-cone driven prey capture behaviour in zebrafish

Takeshi Yoshimatsu, Cornelius Schröde, Noora Nevala, Philipp Berens & Tom Baden
In the eye, the function of same-type photoreceptors must be regionally adjusted to process a highly asymmetrical natural visual world. Here we show that UV-cones in the larval zebrafish area temporalis are specifically tuned for UV-bright prey capture in their upper frontal visual field, which uses the signal from a single cone at a time. For this, UV-detection efficiency is regionally boosted 42-fold. Next, in vivo 2-photon imaging, transcriptomics and computational modelling reveal that these...

Rethinking megafauna

Marcos Moleón, José Sánchez-Zapata, José Donázar, Eloy Revilla, Berta Martín-López, Cayetano Gutiérrez-Cánovas, Wayne Getz, Zebensui Morales-Reyes, Ahimsa Campos-Arceiz, Larry Crowder, Mauro Galetti, Manuela González-Suárez, Fengzhi He, Pedro Jordano, Rebecca Lewison, Robin Naidoo, Norman Owen-Smith, Nuria Selva, Jens-Christian Svenning, José Tella, Christiane Zarfl, Sonja Jähnig, Matt Hayward, Søren Faurby, Nuria García … & Klement Tochner
Concern for megafauna is increasing among scientists and non-scientists. Many studies have emphasized that megafauna play prominent ecological roles and provide important ecosystem services to humanity. But, what precisely are “megafauna”? Here we critically assess the concept of megafauna and propose a goal-oriented framework for megafaunal research. First, we review definitions of megafauna and analyze associated terminology in the scientific literature. Second, we conduct a survey among ecologists and paleontologists to assess the species traits...

Three-dimensional surface models of hand bones (individual 15-06)

Fotios Alexandros Karakostis, Hugo Reyes-Centeno, Michael Francken, Gerhard Hotz, Kurt Rademaker & Katerina Harvati
Objectives: Cuncaicha, a rockshelter site in the southern Peruvian Andes, has yielded archaeological evidence for human occupation at high elevation (4480 masl) during the Terminal Pleistocene (12,500 to 11,200 cal BP), Early Holocene (9500-9000 cal BP), and later periods. One of the excavated human burials (Feature 15-06), corresponding to a middle-aged female dated to ~8500 cal BP, exhibits skeletal osteoarthritic lesions previously proposed to reflect habitual loading and specialized crafting labor. Three small tools found...

Data from: A cross-cultural investigation of young children’s spontaneous invention of tool use behaviors

Karri Neldner, Eva Reindl, Claudio Tennie, Julie Grant, Keyan Tomaselli & Mark Nielsen
Through the mechanisms of observation, imitation and teaching, young children readily pick up the tool using behaviors of their culture. However, little is known about the baseline abilities of children’s tool use: what they might be capable of inventing on their own in the absence of socially provided information. It has been shown that children can spontaneously invent 11 of 12 candidate tool using behaviors observed within the foraging behaviors of wild non-human apes (Reindl,...

Data from: What’s in a colluvial deposit? New perspectives from archaeopedology.

Sascha Scherer, Katleen Deckers, Jan Dietel, Markus Fuchs, Jessica Henkner, Benjamin Höpfer, Andrea Junge, Ellen Kandeler, Eva Lehndorff, Peter Leinweber, Johanna Lomax, Jan Miera, Christian Poll, Michael Toffolo, Thomas Knopf, Thomas Scholten & Peter Kühn
Colluvial deposits are considered as sedimentary archives for the reconstruction of soil erosion history, Holocene climate, past pedogenesis and land use. However, the human contribution to the formation of colluvial deposits is mainly based on quantitative assumptions derived from the local chronostratigraphy and archaeology. For this reason, there is often a substantial gap in the qualitative identification of specific land use practices that caused prehistoric soil erosion. We use an archaeopedological multi-proxy approach on a...

Data from: Equivocal evidence for a change in balance between selfing and pollinator-mediated reproduction in annual Brassicaceae growing along a rainfall gradient

Merav Seifan, Eleanor V. J. Gibson-Forty & Katja Katja Tielbörger
Because many plants ensure their reproductive success using some level of self-fertilization, it is predicted that the balance between pollinator-mediated pollen transfer and autonomous selfing will be correlated with habitat harshness and pollinator activity. To study these correlations, we used three annual species that differ in their self-incompatibility and compared their reproductive success in the form of fruit production and seed viability, with and without pollinators, along a rainfall gradient and in relation to pollinator...

Registration Year

  • 2020

Resource Types

  • Dataset


  • University of Tübingen
  • University of Hohenheim
  • Institute of Genetics and Molecular and Cellular Biology
  • Estación Biológica de Doñana
  • Bangor University
  • Centre d'Ecologie Fonctionnelle et Evolutive
  • Sao Paulo State University
  • University of Sussex
  • Ghent University
  • Stanford University