7 Works

Data from: Spatially correlated extinctions select for less emigration but larger dispersal distances in the spider mite Tetranychus urticae

Emanuel A. Fronhofer, Jonas M. Stelz, Eva Lutz, Hans Joachim Poethke & Dries Bonte
Dispersal is a central process to almost all species on earth, as it connects spatially structured populations and thereby increases population persistence. Dispersal is subject to (rapid) evolution and local patch extinctions are an important selective force in this context. In contrast to the randomly distributed local extinctions considered in most theoretical studies, habitat fragmentation or other anthropogenic interventions will lead to spatially correlated extinction patterns. Under such conditions natural selection is thought to lead...

Data from: Discordance between nuclear and mitochondrial genomes in sexual and asexual lineages of the freshwater snail Potamopyrgus antipodarum

Dorota Paczesniak, Jukka Jokela, Katelyn Larkin & Maurine Neiman
The presence and extent of mitonuclear discordance in coexisting sexual and asexual lineages provides insight into 1) how and when asexual lineages emerged, and 2) the spatial and temporal scales at which the ecological and evolutionary processes influencing the evolution of sexual and asexual reproduction occur. Here, we used nuclear single-nucleotide polymorphism (SNP) markers and a mitochondrial gene to characterize phylogeographic structure and the extent of mitonuclear discordance in Potamopyrgus antipodarum. This New Zealand freshwater...

Data from: Repeated and predictable patterns of ecotypic differentiation during a biological invasion: lake-stream divergence in parapatric Swiss stickleback

Kay Lucek, Arjun Sivasundar, Denis Roy & Ole Seehausen
The relative importance of ecological selection and geographical isolation in promoting and constraining genetic and phenotypic differentiation among populations is not always obvious. Interacting with divergent selection, restricted opportunity for gene flow may in some cases be as much a cause as a consequence of adaptation, with the latter being a hallmark of ecological speciation. Ecological speciation is well studied in parts of the native range of the three-spined stickleback. Here, we study this process...

Data from: Switching between apparently redundant iron-uptake mechanisms benefits bacteria in changeable environments

Zoé Dumas, Adin Ross-Gillespie & Rolf Kümmerli
Bacteria often possess multiple siderophore-based iron uptake systems for scavenging this vital resource from their environment. However, some siderophores seem redundant, because they have limited iron-binding efficiency and are seldom expressed under iron limitation. Here, we investigate the conundrum of why selection does not eliminate this apparent redundancy. We focus on Pseudomonas aeruginosa, a bacterium that can produce two siderophores—the highly efficient but metabolically expensive pyoverdine, and the inefficient but metabolically cheap pyochelin. We found...

Data from: Predicting novel trophic interactions in a non-native world

Ian S. Pearse & Florian Altermatt
Humans are altering the global distributional ranges of plants, while their co-evolved herbivores are frequently left behind. Native herbivores often colonise non-native plants, potentially reducing invasion success or causing economic loss to introduced agricultural crops. We developed a predictive model to forecast novel interactions and verified it with a data set containing hundreds of observed novel plant–insect interactions. Using a food network of 900 native European butterfly and moth species and 1944 native plants, we...

Data from: Altruism can evolve when relatedness is low: evidence from bacteria committing suicide upon phage infection

Dominik Refardt, Tobias Bergmiller & Rolf Kümmerli
High relatedness among interacting individuals has generally been considered a precondition for the evolution of altruism. However, kin-selection theory also predicts the evolution of altruism when relatedness is low, as long as the cost of the altruistic act is minor compared to its benefit. Here, we demonstrate evidence for a low-cost altruistic act in bacteria. We investigated Escherichia coli responding to the attack of an obligately lytic phage by committing suicide in order to prevent...

Data from: Genetic constraints underlying human reproductive timing in a premodern Swiss village

Anja Bürkli & Erik Postma
The trade-off between reproductive investment in early versus late life is central to life-history theory. Despite abundant empirical evidence supporting different versions of this trade-off, the specific trade-off between age at first reproduction (AFR) and age at last reproduction (ALR) has received little attention, especially in long-lived species with a pronounced reproductive senescence such as humans. Using genealogical data for a 19th-century Swiss village, we (i) quantify natural selection acting on reproductive timing, (ii) estimate...

Registration Year

  • 2013

Resource Types

  • Dataset


  • Swiss Federal Institute of Aquatic Science and Technology
  • University of Zurich
  • Swiss Federal Institute of Technology in Zurich
  • Ghent University
  • University of Würzburg
  • University of Bern
  • University of Iowa
  • Cornell University