Institution
University of Potsdam
Education•Potsdam, Germany•
About: University of Potsdam is a education organization based out in Potsdam, Germany. It is known for research contribution in the topics: Population & Computer science. The organization has 9629 authors who have published 26740 publications receiving 759745 citations. The organization is also known as: Universität Potsdam.
Papers published on a yearly basis
Papers
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University of Bern1, Technische Universität München2, University of Jena3, Smithsonian Conservation Biology Institute4, University of Natural Resources and Life Sciences, Vienna5, University of Tübingen6, University of Cologne7, Leibniz Association8, University of Freiburg9, Lund University10, Technische Universität Darmstadt11, University of Göttingen12, Helmholtz Centre for Environmental Research - UFZ13, University of Kiel14, University of Potsdam15, University of Münster16, University of Ulm17, University of Würzburg18, Max Planck Society19, Free University of Berlin20, Xavier University21, University of Salzburg22, Smithsonian Tropical Research Institute23, Karlsruhe Institute of Technology24, University of Giessen25
TL;DR: It is demonstrated that primary producers, herbivorous insects and microbial decomposers seem to be particularly important drivers of ecosystem functioning, as shown by the strong and frequent positive associations of their richness or abundance with multiple ecosystem services.
Abstract: Many experiments have shown that loss of biodiversity reduces the capacity of ecosystems to provide the multiple services on which humans depend. However, experiments necessarily simplify the complexity of natural ecosystems and will normally control for other important drivers of ecosystem functioning, such as the environment or land use. In addition, existing studies typically focus on the diversity of single trophic groups, neglecting the fact that biodiversity loss occurs across many taxa and that the functional effects of any trophic group may depend on the abundance and diversity of others. Here we report analysis of the relationships between the species richness and abundance of nine trophic groups, including 4,600 above- and below-ground taxa, and 14 ecosystem services and functions and with their simultaneous provision (or multifunctionality) in 150 grasslands. We show that high species richness in multiple trophic groups (multitrophic richness) had stronger positive effects on ecosystem services than richness in any individual trophic group; this includes plant species richness, the most widely used measure of biodiversity. On average, three trophic groups influenced each ecosystem service, with each trophic group influencing at least one service. Multitrophic richness was particularly beneficial for 'regulating' and 'cultural' services, and for multifunctionality, whereas a change in the total abundance of species or biomass in multiple trophic groups (the multitrophic abundance) positively affected supporting services. Multitrophic richness and abundance drove ecosystem functioning as strongly as abiotic conditions and land-use intensity, extending previous experimental results to real-world ecosystems. Primary producers, herbivorous insects and microbial decomposers seem to be particularly important drivers of ecosystem functioning, as shown by the strong and frequent positive associations of their richness or abundance with multiple ecosystem services. Our results show that multitrophic richness and abundance support ecosystem functioning, and demonstrate that a focus on single groups has led to researchers to greatly underestimate the functional importance of biodiversity.
486 citations
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TL;DR: QuantPrime constitutes a flexible, fully automated web application for reliable primer design for use in larger qPCR experiments, as proven by experimental data.
Abstract: Medium- to large-scale expression profiling using quantitative polymerase chain reaction (qPCR) assays are becoming increasingly important in genomics research. A major bottleneck in experiment preparation is the design of specific primer pairs, where researchers have to make several informed choices, often outside their area of expertise. Using currently available primer design tools, several interactive decisions have to be made, resulting in lengthy design processes with varying qualities of the assays. Here we present QuantPrime, an intuitive and user-friendly, fully automated tool for primer pair design in small- to large-scale qPCR analyses. QuantPrime can be used online through the internet http://www.quantprime.de/
or on a local computer after download; it offers design and specificity checking with highly customizable parameters and is ready to use with many publicly available transcriptomes of important higher eukaryotic model organisms and plant crops (currently 295 species in total), while benefiting from exon-intron border and alternative splice variant information in available genome annotations. Experimental results with the model plant Arabidopsis thaliana, the crop Hordeum vulgare and the model green alga Chlamydomonas reinhardtii show success rates of designed primer pairs exceeding 96%. QuantPrime constitutes a flexible, fully automated web application for reliable primer design for use in larger qPCR experiments, as proven by experimental data. The flexible framework is also open for simple use in other quantification applications, such as hydrolyzation probe design for qPCR and oligonucleotide probe design for quantitative in situ hybridization. Future suggestions made by users can be easily implemented, thus allowing QuantPrime to be developed into a broad-range platform for the design of RNA expression assays.
483 citations
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TL;DR: It is shown that coherency between ENSO and NAO is an artefact for most of the time from 1900 to 1995, however, during a distinct period from around 1920 to 1940, significant co herency between the two phenomena occurs.
Abstract: . In this paper, we present a detailed evaluation of cross wavelet analysis of bivariate time series. We develop a statistical test for zero wavelet coherency based on Monte Carlo simulations. If at least one of the two processes considered is Gaussian white noise, an approximative formula for the critical value can be utilized. In a second part, typical pitfalls of wavelet cross spectra and wavelet coherency are discussed. The wavelet cross spectrum appears to be not suitable for significance testing the interrelation between two processes. Instead, one should rather apply wavelet coherency. Furthermore we investigate problems due to multiple testing. Based on these results, we show that coherency between ENSO and NAO is an artefact for most of the time from 1900 to 1995. However, during a distinct period from around 1920 to 1940, significant coherency between the two phenomena occurs.
480 citations
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TL;DR: Dissipative chaotic systems with a time-delayed feedback can drive near-identical systems in such a way that the driven systems anticipate the drivers by synchronizing with their (arbitrarily distant) future states.
Abstract: Dissipative chaotic systems with a time-delayed feedback can drive near-identical systems in such a way that the driven systems anticipate the drivers by synchronizing with their (arbitrarily distant) future states. This counterintuitive behavior is globally stable, robust, and a pure result of the interplay between delayed feedback and dissipation. Thus it constitutes a rather universal phenomenon of nonlinear dynamics. For small anticipation times, anticipating synchronization also occurs in chaotic systems without a memory term in the driver.
477 citations
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Helmholtz Centre for Environmental Research - UFZ1, University of Girona2, Catalan Institute for Water Research3, University of Barcelona4, Leibniz Association5, University of Potsdam6, Griffith University7, Abant Izzet Baysal University8, Universidade Federal de Juiz de Fora9, Charles Sturt University10, Aarhus University11, Radboud University Nijmegen12, Uppsala University13, University of Murcia14, University of Innsbruck15, Federal University of Rio Grande do Norte16, Estonian University of Life Sciences17, Ewha Womans University18, Chinese Academy of Sciences19, National Scientific and Technical Research Council20, University of the Basque Country21, UNESCO-IHE Institute for Water Education22, IRSA23, Umeå University24
TL;DR: A global survey covering 196 dry inland waters shows that their CO2 emissions share fundamental drivers and constitute a substantial fraction of the carbon cycled by inland waters, increasing current inland water carbon flux estimates by 6%.
Abstract: Many inland waters exhibit complete or partial desiccation, or have vanished due to global change, exposing sediments to the atmosphere. Yet, data on carbon dioxide (CO2) emissions from these sedim ...
474 citations
Authors
Showing all 9969 results
Name | H-index | Papers | Citations |
---|---|---|---|
Cyrus Cooper | 204 | 1869 | 206782 |
Markus Antonietti | 176 | 1068 | 127235 |
Marc Weber | 167 | 2716 | 153502 |
Peter Capak | 147 | 679 | 70483 |
Heiner Boeing | 140 | 1024 | 92580 |
Alisdair R. Fernie | 133 | 1010 | 64026 |
Klaus-Robert Müller | 129 | 764 | 79391 |
Claudia Felser | 113 | 1198 | 58589 |
Guochun Zhao | 113 | 406 | 40886 |
Matthias Steinmetz | 112 | 461 | 67802 |
Jürgen Kurths | 105 | 1038 | 62179 |
Peter Schmidt | 105 | 638 | 61822 |
Erwin P. Bottinger | 102 | 342 | 42089 |
Knud Jahnke | 94 | 352 | 31542 |
Gerd Gigerenzer | 94 | 533 | 52356 |