9 Works

Data from: Invasive alien plants benefit more from clonal integration in heterogeneous environments than natives

Yong-Jian Wang, Heinz Müller-Schärer, Mark Van Kleunen, Ai-Ming Cai, Ping Zhang, Rong Yan, Bi-Cheng Dong & Fei-Hai Yu
What confers invasive alien plants a competitive advantage over native plants remains open to debate. Many of the world's worst invasive alien plants are clonal and able to share resources within clones (clonal integration), particularly in heterogeneous environments. Here, we tested the hypothesis that clonal integration benefits invasive clonal plants more than natives and thus confers invasives a competitive advantage. We selected five congeneric and naturally co-occurring pairs of invasive alien and native clonal plants...

Data from: Socio-economic impact classification of alien taxa (SEICAT)

Sven Bacher, Tim M. Blackburn, Franz Essl, Piero Genovesi, Jaakko Heikkilä, Jonathan M. Jeschke, Glyn Jones, Reuben Keller, Marc Kenis, Christoph Kueffer, Angeliki F. Martinou, Wolfgang Nentwig, Jan Pergl, Petr Pyšek, Wolfgang Rabitsch, David M. Richardson, Helen E. Roy, Wolf-Christian Saul, Riccardo Scalera, Montserrat Vila, John R. U. Wilson, Sabina Kumschick & Sabrina Kumschick
Many alien taxa are known to cause socio-economic impacts by affecting the different constituents of human well-being (security; material and non-material assets; health; social, spiritual and cultural relations; freedom of choice and action). Attempts to quantify socio-economic impacts in monetary terms are unlikely to provide a useful basis for evaluating and comparing impacts of alien taxa because they are notoriously difficult to measure and important aspects of human well-being are ignored. Here, we propose a...

Data from: A structural approach for understanding multispecies coexistence

Serguei Saavedra, Rudolf P. Rohr, Jordi Bascompte, Oscar Godoy, Nathan J.B. Kraft, Jonathan M. Levine & Nathan J. B. Kraft
Although observations of species-rich communities have long served as a primary motivation for research on the coexistence of competitors, the majority of our empirical and theoretical understanding comes from two-species systems. How much of the coexistence observed in species rich communities results from indirect effects among competitors that only emerge in diverse systems remains poorly understood. Resolving this issue requires simple, scalable, and intuitive metrics for quantifying the conditions for coexistence in multispecies systems, and...

Data from: Reorganization of interaction networks modulates the persistence of species in late successional stages

Serguei Saavedra, Simone Cenci, Ek Del-Val, Karina Boege & Rudolf P. Rohr
1.Ecological interaction networks constantly reorganize as interspecific interactions change across successional stages and environmental gradients. This reorganization can also be associated with the extent to which species change their preference for types of niches available in their local sites. Despite the pervasiveness of these interaction changes, previous studies have revealed that network reorganizations have a minimal or insignificant effect on global descriptors of network architecture, such as: connectance, modularity, and nestedness. However, little is known...

Data from: Neurons in primate visual cortex alternate between responses to multiple stimuli in their receptive field

Kang Li, Vladislav Kozyrev, Søren Kyllingsbæk, Stefan Treue, Susanne Ditlevsen & Claus Bundesen
A fundamental question concerning representation of the visual world in our brain is how a cortical cell responds when presented with more than a single stimulus. We find supportive evidence that most cells presented with a pair of stimuli respond predominantly to one stimulus at a time, rather than a weighted average response. Traditionally, the firing rate is assumed to be a weighted average of the firing rates to the individual stimuli (response-averaging model) (Bundesen...

Data from: Genes mirror geography in Daphnia magna

Peter D. Fields, Céline Reisser, Marinela Dukić, Christoph R. Haag & Dieter Ebert
Identifying the presence and magnitude of population genetic structure remains a major consideration in evolutionary biology as doing so allows one to understand the demographic history of a species as well as make predictions of how the evolutionary process will proceed. Next-generation sequencing methods allow us to reconsider previous ideas and conclusions concerning the distribution of genetic variation, and what this distribution implies about a given species evolutionary history. A previous phylogeographic study of the...

Data from: Why are some plant-pollinator networks more nested than others?

Chuliang Song, Rudolf P. Rohr & Serguei Saavedra
1. Empirical studies have found that the mutualistic interactions forming the structure of plant-pollinator networks are typically more nested than expected by chance alone. Additionally, theoretical studies have shown a positive association between the nested structure of mutualistic networks and community persistence. Yet, it has been shown that some plant-pollinator networks may be more nested than others, raising the interesting question of which factors are responsible for such enhanced nested structure. 2. It has been...

Data from: The effect of top-predator presence and phenotype on aquatic microbial communities

Karen E. Sullam, Blake Matthews, Thierry Aebischer, Ole Seehausen & Helmut Bürgmann
The presence of predators can impact a variety of organisms within the ecosystem, including microorganisms. Because the effects of fish predators and their phenotypic differences on microbial communities have not received much attention, we tested how the presence/absence, genotype, and plasticity of the predatory three-spine stickleback (Gasterosteus aculeatus) influence aquatic microbes in outdoor mesocosms. We reared lake and stream stickleback genotypes on contrasting food resources to adulthood, and then added them to aquatic mesocosm ecosystems...

Data from: Climatic niche evolution is faster in sympatric than allopatric lineages of the butterfly genus Pyrgus

Camille Pitteloud, Nils Arrigo, Tomasz Suchan, Alicia Mastretta-Yanes, Roger Vila, Vlad Dinca, Juan Hernández-Roldán, Ernst Brockmann, Yannick Chittaro, Irena Kleckova, Luca Fumagalli, Sven Buerki, Loïc Pellissier & Nadir Alvarez
Understanding how speciation relates to ecological divergence has long fascinated biologists. It is assumed that ecological divergence is essential to sympatric speciation, as a mechanism to avoid competition and eventually lead to reproductive isolation, while divergence in allopatry is not necessarily associated with niche differentiation. The impact of the spatial context of divergence on the evolutionary rates of abiotic dimensions of the ecological niche has rarely been explored for an entire clade. Here, we compare...

Registration Year

  • 2017

Resource Types

  • Dataset


  • University of Fribourg
  • University of Bern
  • University of Basel
  • Swiss Federal Institute of Technology in Zurich
  • South African National Biodiversity Institute
  • Estación Biológica de Doñana
  • University of Adelaide
  • Centre d'Ecologie Fonctionnelle et Evolutive
  • Swiss Federal Institute of Aquatic Science and Technology
  • Centre for Ecology and Hydrology