10 Works

Data from: The QRS (Quantification of Representative Sequences) pipeline for amplicon sequencing: case study on within-population ITS1 sequence variation in a microparasite infecting Daphnia

Enrique Gonzalez-Tortuero, Jakub Rusek, Adam Petrusek, Sabine Giessler, Dimitrios Lyras, Sonja Grath, Federico Castro-Monzon & Justyna Wolinska
Next generation sequencing (NGS) platforms are replacing traditional molecular biology protocols like cloning and Sanger sequencing. However, accuracy of NGS platforms has rarely been measured when quantifying relative frequencies of genotypes or taxa within populations. Here we developed a new bioinformatic pipeline (QRS) that pools similar sequence variants and estimates their frequencies in NGS data sets from populations or communities. We tested whether the estimated frequency of representative sequences, generated by 454 amplicon sequencing, differs...

Data from: Population structure of a microparasite infecting Daphnia: spatio-temporal dynamics

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Background: Detailed knowledge of spatial and temporal variation in the genetic population structure of hosts and parasites is required for understanding of hostparasite coevolution. As hot-spots of contemporary coevolution in natural systems are difficult to detect and long-term studies are restricted to few systems additional population genetic data from various hostparasite systems may provide important insights into the topic. This is particularly true for parasites as these players have been under-investigated so far due to...

Data from: Stoichiometric imbalances between detritus and detritivores are related to shifts in ecosystem functioning

André Frainer, Jérémy Jabiol, Mark O. Gessner, Andreas Bruder, Eric Chauvet, Brendan McKie & Brendan G. McKie
How are resource consumption and growth rates of litter-consuming detritivores affected by imbalances between consumer and litter C:N:P ratios? To address this question, we offered leaf litter as food to three aquatic detritivore species, which represent a gradient of increasing body N:P ratios: a crustacean, a caddisfly and a stonefly. The detritivores were placed in microcosms and submerged in a natural stream. Four contrasting leaf species were offered, both singly and in two-species mixtures, to...

Data from: Extreme environments facilitate hybrid superiority - the story of a successful Daphnia galeata × longispina hybrid clone

Johanna Griebel, Sabine Gießler, Monika Poxleitner, Amanda Navas Faria, Mingbo Yin & Justyna Wolinska
Hybridization within the animal kingdom has long been underestimated. Hybrids have often been considered less fit than their parental species. In the present study, we observed that the Daphnia community of a small lake was dominated by a single D. galeata × D. longispina hybrid clone, during two consecutive years. Notably, in artificial community set-ups consisting of several clones representing parental species and other hybrids, this hybrid clone took over within about ten generations. Neither...

Data from: The evolutionary legacy of size-selective harvesting extends from genes to populations

Silva Uusi-Heikkilä, Andrew R. Whiteley, Anna Kuparinen, Shuichi Matsumura, Paul A. Venturelli, Christian Wolter, Jon Slate, Craig R. Primmer, Thomas Meinelt, Shaun S. Killen, David Bierbach, Giovanni Polverino, Arne Ludwig & Robert Arlinghaus
Size-selective harvesting is assumed to alter life histories of exploited fish populations, thereby negatively affecting population productivity, recovery, and yield. However, demonstrating that fisheries-induced phenotypic changes in the wild are at least partly genetically determined has proved notoriously difficult. Moreover, the population-level consequences of fisheries-induced evolution are still being controversially discussed. Using an experimental approach, we found that five generations of size-selective harvesting altered the life histories and behavior, but not the metabolic rate, of...

Data from: Spatial scaling of environmental variables improves species-habitat models of fishes in a small, sand-bed lowland river

Johannes Radinger, Christian Wolter & Jochem Kail
Habitat suitability and the distinct mobility of species depict fundamental keys for explaining and understanding the distribution of river fishes. In recent years, comprehensive data on river hydromorphology has been mapped at spatial scales down to 100 m, potentially serving high resolution species-habitat models, e.g., for fish. However, the relative importance of specific hydromorphological and in-stream habitat variables and their spatial scales of influence is poorly understood. Applying boosted regression trees, we developed species-habitat models...

Data from: Contrasting the roles of section length and instream habitat enhancement for river restoration success: a field study on 20 European restoration projects

Daniel Hering, Jukka Aroviita, Annette Baattrup-Pedersen, Karel Brabec, Tom Buijse, Frauke Ecke, Nikolai Friberg, Marek Gielczewski, Kathrin Januschke, Jan Köhler, Benjamin Kupilas, Armin W. Lorenz, Susanne Muhar, Amael Paillex, Michaela Poppe, Torsten Schmidt, Stefan Schmutz, Jan Vermaat, Piet F. M. Verdonschot, Ralf C. M. Verdonschot, Jochem Kail & Christian Wolter
1. Restoration of river hydromorphology often has limited detected effects on river biota. One frequently discussed reason is that the restored river length is insufficient to allow populations to develop and give the room for geomorphologic processes to occur. 2. We investigated ten pairs of restored river sections of which one was a large project involving a long, intensively restored river section and one represented a smaller restoration effort. The restoration effect was quantified by...

Data from: Empirical evidence for species-specific export of fish naïveté from a no-take marine protected area in a coastal recreational hook and line fishery

Josep Alós, Antoni Puiggrós, Carlos Díaz-Gil, Miquel Palmer, Rosario Rosselló & Robert Arlinghaus
No-take marine protected areas (MPAs) are assumed to enhance fisheries catch via the “spillover” effect, where biomass is exported to adjacent exploited areas. Recent studies in spearfishing fisheries suggest that the spillover of gear-naïve individuals from protected to unprotected sites increases catch rates outside the boundaries of MPAs. Whether this is a widespread phenomenon that also holds for other gear types and species is unknown. In this study, we tested if the distance to a...

Data from: Performance assessment of two whole-lake acoustic positional telemetry systems - is reality mining of free-ranging aquatic animals technologically possible?

Henrik Baktoft, Petr Zajicek, Thomas Klefoth, Jon Christian Svendsen, Lene Jacobsen, Martin Wæver Pedersen, David March Morla, Christian Skov, Shinnosuke Nakayama & Robert Arlinghaus
Acoustic positional telemetry systems (APTs) represent a novel approach to study the behaviour of free ranging aquatic animals in the wild at unprecedented detail. System manufactures promise remarkably high temporal and spatial resolution. However, the performance of APTs has rarely been rigorously tested at the level of entire ecosystems. Moreover, the effect of habitat structure on system performance has only been poorly documented. Two APTs were deployed to cover two small lakes and a series...

Data from: Genetic structure of Daphnia galeata populations in Eastern China

Wenzhi Wei, Sabine Gießler, Justyna Wolinska, Xiaolin Ma, Zhong Yang, Wei Hu & Mingbo Yin
This study presents the first examination of the genetic structure of Daphnia longispina complex populations in Eastern China. Only one species, D. galeata, was present across the eight investigated lakes; as identified by taxon assignment using allelic variation at 15 microsatellite loci. Three genetically differentiated D. galeata subgroups emerged independent of the type of statistical analysis applied. Thus, Bayesian clustering, discriminant analysis based on results from factorial correspondence analysis, and UPGMA clustering consistently showed that...

Registration Year

  • 2015
    10

Resource Types

  • Dataset
    10

Affiliations

  • Leibniz Institute of Freshwater Ecology and Inland Fisheries
    10
  • Ludwig Maximilian University of Munich
    4
  • Fudan University
    3
  • Humboldt University of Berlin
    2
  • Charles University
    2
  • Swedish University of Agricultural Sciences
    2
  • University of Duisburg-Essen
    2
  • University of Massachusetts Amherst
    1
  • VU University Amsterdam
    1
  • Swiss Federal Institute of Aquatic Science and Technology
    1