4 Works

Data from: Reciprocity and the tragedies of maintaining and providing the commons

Simon Gächter, Felix Kölle & Simone Quercia
Social cooperation often requires collectively beneficial but individually costly restraint to maintain a public good, or it needs costly generosity to create one. Status quo effects predict that maintaining a public good is easier than providing a new one. Here, we show experimentally and with simulations that even under identical incentives, low levels of cooperation (the ‘tragedy of the commons’) are systematically more likely in maintenance than provision. Across three series of experiments, we find...

Data from: The best of both worlds: a combined approach for analyzing microalgal diversity via metabarcoding and morphology-based methods

Sophie Groendahl, Maria Kahlert & Patrick Fink
An increasing number of studies use next generation sequencing (NGS) to analyze complex communities, but is the method sensitive enough when it comes to identification and quantification of species? We compared NGS with morphology-based identification methods in an analysis of microalgal (periphyton) communities. We conducted a mesocosm experiment in which we allowed two benthic grazer species to feed upon benthic biofilms, which resulted in altered periphyton communities. Morphology-based identification and 454 (Roche) pyrosequencing of the...

Data from: The diverse dietary profiles of MIS 3 cave bears from the Romanian Carpathians: insights from stable isotope (δ13C and δ15N) analysis

Marius Robu, Jonathan G. Wynn, Ionuţ C. Mirea, Alexandru Petculescu, Marius Kenesz, Cristina M. Puşcaş, Marius Vlaicu, Erik Trinkaus & Silviu Constantin
Late Pleistocene European cave bears (Ursus spelaeus) have been considered to be largely vegetarian, although stable isotope data (δ13C and δ15N values) from the Romanian Carpathians has suggested considerable dietary variation. Here we evaluate previous and additional adult cave bear isotopic data from four Marine Isotope Stage 3 (MIS 3) sites in the Carpathians. Peştera Urşilor (N = 35), Peştera Cioclovina (N = 32), Peştera Muierilor (N = 8), and Peştera cu Oase (N =...

Data from: A new mechanistic approach for the further development of a population with established size bimodality

Lisa Heermann, Donald L. DeAngelis & Jost Borcherding
Usually, the origin of a within-cohort bimodal size distribution is assumed to be caused by initial size differences or by one discrete period of accelerated growth for one part of the population. The aim of this study was to determine if more continuous pathways exist allowing shifts from the small to the large fraction within a bimodal age-cohort. Therefore, a Eurasian perch population, which had already developed a bimodal size-distribution and had differential resource use...

Registration Year

  • 2017

Resource Types

  • Dataset


  • University of Cologne
  • University of Nottingham
  • Washington University in St. Louis
  • Swedish University of Agricultural Sciences
  • University of South Florida
  • United States Geological Survey
  • University of Bonn
  • Romanian Academy