19 Works

Einleitung: Diversität im Militär

Sönke Neitzel

Forschungsdatenstrategie 2019-2022

Diese Forschungsdatenstrategie definiert die technischen und organisatorischen Voraussetzungen zur Einhaltung der Forschungsdaten-Policy der Universität Potsdam, zu deren Schaffung sich die Universität verpflichtet. Sie behandelt Fragen von Offenheit und Nachnutzbarkeit ebenso wie Herausforderungen, die sich aus der Digitalisierung von Forschungsprozessen ergeben. Dazu definiert sie auf Basis einer ausführlichen Bewertung des Ist-Stands an der Universität Potsdam 22 Handlungsziele in den Handlungsfeldern „IT-Infrastruktur für die Forschung“, „Dedizierte Forschungsdaten-Dienste“ und „Kommunikation und Vernetzung“. Die Handlungsziele sollen bis Ende 2022...

CaTeNA – Climatic and Tectonic Natural Hazards in Central Asia Final virtual workshop September 24-25 2020

Natalie Barbosa, Wasja Bloch, Silvia Crosetto, Christian Haberland, Ben Jarihani, Najibullah Kakar, Sabrina Metzger, Solmaz Mohadjer, Sagynbek Orunbaev, Lothar Ratschbacher, Bernd Schurr, Manfred Strecker & Xun Wang
CaTeNA – Climatic and Tectonic Natural Hazards in Central Asia – is an interdisciplinary, international project funded by the German Ministry of Education and Research to study natural hazards in Central Asia. Central Asia is one of the most tectonically active regions of the world and is influenced by both the west wind zone and monsoon. CaTeNA is examining the two most serious natural hazards arising from these conditions: Earthquakes and mass movements. The project...

Globally, plant-soil feedbacks are weak predictors of plant abundance

Kurt Reinhart, Jonathan Bauer, Sarah McCarthy-Neumann, Andrew MacDougall, José Hierro, Mariana Chiuffo, Scott Mangan, Johannes Heinze, Joana Bergmann, Jasmin Joshi, Richard Duncan, Jeff Diaz, Paul Kardol, Gemma Rutten, Markus Fischer, Wim Van Der Putten, T. Bezemer & John Klironomos
Plant-soil feedbacks (PSFs) have been shown to strongly affect plant performance under controlled conditions, and PSFs are thought to have far reaching consequences for plant population dynamics and the structuring of plant communities. However, thus far the relationship between PSF and plant species abundance in the field is not consistent. Here, we synthesize PSF experiments from tropical forests to semiarid grasslands, and test for a positive relationship between plant abundance in the field and PSFs...

Fluorescent (C)LSM image sequences of Dictyostelium discoideum (Ax2 - LifeAct mRFP) for cell track and cell contour analysis

Maike Stange, Ted Moldenhawer & Carsten Beta
This data set is designed for cell contour and cell track analysis. Hence image sequences of moving Dictyostelium discoideum cells are recorded. For the purpose to facilitate the detection of the cell contour we take fluorescent images of the cortical protein actin to obtain a high contrast between background and cell body. In each image sequences several cells are recorded. This allows for an analysis of all cells at once or to crop single cell...

Data from: Genetic identity and herbivory drive the invasion of a common aquatic microbial invader - phytoplankton and zooplankton abundance

Sarah Bolius, Karoline Morling, Claudia Wiedner & Guntram Weithoff
Despite the increasing number of species invasions, the factors driving invasiveness are still under debate. This is particularly the case for ‘invisible’ invasions by aquatic microbial species. Since in many cases only a few individuals or propagules enter a new habitat, their genetic variation is low and might limit their invasion success, known as the genetic bottleneck. Thus, a key question is, how genetic identity and diversity of invading species influences their invasion success and,...

Mineralogical responses to 9-years of interaction of a CO2-charged brine with a sandstone aquifer: Observations from the Ketzin CO2-storage pilot site (Germany)

Hans-Jürgen Förster, Franziska Wilke, Susanne Bock, Darleen Eisner & Andrea Förster
This report compiles observations made within a time frame of two months on 24 representative thin-section samples representing the periods before and after 4- and 9-years of injection of CO2 into the reservoir. Given this short period of time until completion of this report, some observations and conclusions drawn have to be judged preliminary. Further analytical work and in-depth interpretation of the results are underway. Information provided for the period 0–4 years after CO2 injection...

Data from: Adaptive reduction of male gamete number in the selfing plant Arabidopsis thaliana

Takashi Tsuchimatsu, Hiroyuki Kakui, Misako Yamazaki, Cindy Marona, Hiroki Tsutsui, Afif Hedhly, Dazhe Meng, Yutaka Sato, Thomas Städler, Ueli Grossniklaus, Masahiro Kanaoka, Michael Lenhard, Magnus Nordborg & Kentaro Shimizu
The number of male gametes is critical for reproductive success and varies between and within species. The evolutionary reduction of the number of pollen grains encompassing the male gametes is widespread in selfing plants. Here, we employ genome-wide association study (GWAS) to identify underlying loci and to assess the molecular signatures of selection on pollen number-associated loci in the predominantly selfing plant Arabidopsis thaliana. Regions of strong association with pollen number are enriched for signatures...

Individual differences in risk‐taking affect foraging across different landscapes of fear

Philip O. M. Steinhoff, Bennet Warfen, Sissy Voigt, Gabriele Uhl & Melanie Dammhahn
One of the strongest determinants of behavioural variation is the tradeoff between resource gain and safety. Although classical theory predicts optimal foraging under risk, empirical studies report large unexplained variation in behaviour. Intrinsic individual differences in risk-taking behaviour might contribute to this variation. By repeatedly exposing individuals of a small mesopredator to different experimental landscapes of risks and resources, we tested 1) whether individuals adjust their foraging behaviour according to predictions of the general tradeoff...

Seasonal niche tracking of climate emerges at the population level in a migratory bird

Guillermo Fandos, Shay Rotics, Nir Sapir, Wolfgang Fiedler, Michael Kaatz, Martin Wikelski, Ran Nathan & Damaris Zurell
Seasonal animal migration is a widespread phenomenon. At the species level, it has been shown that many migratory animal species track similar climatic conditions throughout the year. However, it remains unclear whether such niche tracking pattern is a direct consequence of individual behaviour or emerges at the population or species level through behavioural variability. Here, we estimated seasonal niche overlap and seasonal niche tracking at the individual and population level of Central European White Storks...

Forschungsdaten-Policy und Handlungsempfehlungen zum Umgang mit Forschungsdaten

Die Forschungsdaten-Policy der Universität Potsdam wurde am 25.09.2019 vom Senat der Universität Potsdam verabschiedet und am 30.09.2019 in den amtlichen Bekanntmachungen veröffentlicht. Sie richten sich an alle wissenschaftlich und forschungsunterstützend tätigen Mitglieder und Angehörigen. Die Handlungsempfehlungen zum Umgang mit Forschungsdaten konkretisieren und ergänzen die Forschungsdaten-Policy der Universität Potsdam. Sie richten sich an alle wissenschaftlich und forschungsunterstützend tätigen Mitglieder und Angehörigen und wurden am 09.10.2019 durch die Kommission für Forschung und wissenschaftlichen Nachwuchs (FNK) angenommen.

Source pools and disharmony of the world’s island floras

Christian König, Patrick Weigelt, Amanda Taylor, Anke Stein, Wayne Dawson, Franz Essl, Jan Pergl, Petr Pysek, Mark Van Kleunen, Marten Winter, Cyrille Chatelain, Jan Wieringa, Pavel Krestov & Holger Kreft
Island disharmony refers to the biased representation of higher taxa on islands compared to their mainland source regions and represents a central concept in island biology. Here, we develop a generalizable framework for approximating these source regions and conduct the first global assessment of island disharmony and its underlying drivers. We compiled vascular plant species lists for 178 oceanic islands and 735 mainland regions. Using mainland data only, we modelled species turnover as a function...

Abgeleitete Textformate: Text und Data Mining mit urheberrechtlich geschützten Textbeständen

Christof Schöch, Frédéric Döhl, Achim Rettinger, Evelyn Gius, Peer Trilcke, Peter Leinen, Fotis Jannidis, Maria Hinzmann & Jörg Röpke
Das Text und Data Mining (TDM) mit urheberrechtlich geschützten Texten unterliegt trotz der TDM-Schranke (§ 60d UrhG) weiterhin Einschränkungen, die u. a. die Speicherung, Veröffentlichung und Nachnutzung der entstehenden Korpora betreffen und das volle Potenzial des TDM in den Digital Humanities ungenutzt lassen. Als Lösung werden abgeleitete Textformate vorgeschlagen: Hier werden urheberrechtlich geschützte Textbestände so transformiert, dass alle wesentlichen urheberrechtlich relevanten Merkmale entfernt werden, verschiedene einschlägige Methoden des TDM aber weiterhin zum Einsatz kommen können....

Data from: Manipulation of cytosine methylation does not remove latitudinal clines in two invasive goldenrod species in Central Europe

Silvia Eckert, Jasmin Herden, Marc Stift, Jasmin Joshi & Mark Van Kleunen
Invasive species frequently differentiate phenotypically in novel environments within a few generations, often even with limited genetic variation. For the invasive plants Solidago canadensis and S. gigantea, we tested whether such differentiation might have happened through heritable epigenetic changes in cytosine methylation. In a two-year common-garden experiment, we grew plants from seeds collected along a latitudinal gradient in their non-native Central European range to test for trait differentiation and whether differentiation disappeared when seeds were...

Inter- and intraspecific differences in rotifer fatty acid composition during acclimation to low quality food

Svenja Schälicke, Silvia Heim, Dominik Martin-Creuzburg & Alexander Wacker
Biochemical food quality constraints affect the performance of consumers and mediate trait variation among and within consumer species. To assess inter- and intraspecific differences in fatty acid retention and conversion in freshwater rotifers, we provided four strains of two closely related rotifer species, Brachionus calyciflorus sensu stricto and Brachionus fernandoi, with food algae differing in their fatty acid composition. The rotifers grazed for five days on either Nannochloropsis limnetica or Monoraphidium minutum, two food algae...

Data from: Zooming in on mechanistic predator-prey ecology: integrating camera traps with experimental methods to reveal the drivers of ecological interactions

Justine Smith, Justin Suraci, Jennifer Hunter, Kaitlyn Gaynor, Carson Keller, Meredith Palmer, Justine Atkins, Irene Castañeda, Michael Cherry, Patrick Garvey, Sarah Huebner, Dana Morin, Lisa Teckentrup, Martijn Weterings & Lydia Beaudrot
1. Camera trap technology has galvanized the study of predator-prey ecology in wild animal communities by expanding the scale and diversity of predator-prey interactions that can be analyzed. While observational data from systematic camera arrays have informed inferences on the spatiotemporal outcomes of predator-prey interactions, the capacity for observational studies to identify mechanistic drivers of species interactions is limited. 2. Experimental study designs that utilize camera traps uniquely allow for testing hypothesized mechanisms that drive...

Roridula gorgonias, Clethra arborea: assemblies and annotation

Stefanie Hartmann
Carnivorous plants are distributed across the tree of life, and plant carnivory has evolved at least six times independently in five major plant lineages. However, sequenced and annotated nuclear genomes of only four of these remarkable plants are currently available, three of which are within the Lamiales. More data is needed to study the evolution and molecular adaptations involving plant carnivory, and to determine unique and shared adaptations to carnivory in different lineages. We have...

Research Data Policy and Recommendations for the Handling of Research Data

Non-official translation of the policy ratified by Senate on September 25, 2019 and published in Amtliche Bekanntmachungen “Official Notices” Nr. 18 of 30.09.2019, pp. 1361-1362. The information regarding the novel DFG Code of Conduct in endnote iii has been added editorially. The recommendations for the Handling of Research Data at the University of Potsdam specify and complement the Research Data Policy of the University of Potsdam. They are aimed at all researchers and research support...

Experimental alluvial-river and landsliding response to base-level fall

Andrew D. Wickert, Olivia P Beaulieu, Elizabeth D Witte & Stefanie Tofelde
We observed the incisional response of an alluvial river to base-level fall. We conducted the experiment in a 3.9 × 2.4 × 0.4 m box that we filled with uniform 0.140±0.04 mm sand. We dropped base level by lowering the elevation of an "ocean" pool at the river outlet. As the initial condition, we cut a 10±2 cm wide channel to a steadily increasing depth, from 3±0.5 cm at the inlet, where we supplied water...

Registration Year

  • 2020
    19

Resource Types

  • Dataset
    12
  • Text
    7

Affiliations

  • University of Potsdam
    19
  • University of Konstanz
    3
  • University of Greifswald
    2
  • University of Minnesota
    2
  • Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
    2
  • California State University, Northridge
    1
  • Arkansas State University
    1
  • Rice University
    1
  • Central-Asian Institute for Applied Geosciences
    1
  • University of Würzburg
    1