7 Works

Data from: Differing climatic mechanisms control transient and accumulated vegetation novelty in Europe and eastern North America

Kevin Burke, John Williams, Simon Brewer, Walter Finsinger, Thomas Giesecke, David Lorenz & Alejandro Ordonez
Understanding the mechanisms that produce novel ecosystems is of joint interest to conservation biologists and paleoecologists. Here, we define and differentiate transient from accumulated novelty and evaluate four climatic mechanisms proposed to cause species to reshuffle into novel assemblages: high climatic novelty, high spatial rates of change (displacement), high variance among displacement rates for individual climate variables, and divergence among displacement vector bearings. We use climate simulations to quantify climate novelty, displacement, and divergence across...

Data from: Forest Giants on Different Evolutionary Branches: Ecomorphological Convergence in Helicopter Damselflies

Emmanuel F. A. Toussaint, Seth M. Bybee, Robert J. Erickson & Fabien L. Condamine
The convergent evolution of analogous features is an evolutionary process occurring independently across the tree of life. From the evolution of echolocation, prehensile tail, viviparity or winged flight, environmental factors often drive this astonishing phenomenon. However, convergent evolution is not always conspicuous or easily identified. Giant damselflies count among the largest flying insects on Earth, and have astonishing ecologies including orb-web spider plucking and oviposition in phytotelmata. One species occurs in the Afrotropics and 18...

Environmental and biotic drivers of soil microbial β‐diversity across spatial and phylogenetic scales

Loïc Chalmandrier, Johan Pansu, Lucie Zinger, Frederic Boyer, Eric Coissac, Alexandre Génin, Ludovic Gielly, Sébastien Lavergne, Nicolas Legay, Vincent Schilling, Pierre Taberlet, Tamara Münkemüller & Wilfried Thuiller
Soil microbial communities play a key role in ecosystem functioning but still little is known about the processes that determine their turnover (β-diversity) along ecological gradients. Here, we characterize soil microbial β-diversity at two spatial scales and at multiple phylogenetic grains to ask how archaeal, bacterial and fungal communities are shaped by abiotic processes and biotic interactions with plants. We characterized microbial and plant communities using DNA metabarcoding of soil samples distributed across and within...

Data from: Genes, geology, and germs: gut microbiota across a primate hybrid zone are explained by site soil properties, not host species

Laura E. Grieneisen, Marie J. E. Charpentier, Susan C. Alberts, Ran Blekhman, Gideon Bradburd, Jenny Tung & Elizabeth A. Archie
Gut microbiota in geographically isolated host populations are often distinct. These differences have been attributed to between-population differences in host behaviors, environments, genetics, and geographic distance. However, which factors are most important remains unknown. Here we fill this gap for baboons by leveraging information on 13 environmental variables from 14 baboon populations spanning a natural hybrid zone. Sampling across a hybrid zone allowed us to additionally test whether phylosymbiosis (codiversification between hosts and their microbiota)...

Data from: An alternative interpretation of the Paleogene turtle Cardichelyon rogerwoodi as a hinged kinosternoid

Walter Gordon Joyce & Julien Claude
Cardichelyon rogerwoodi is an enigmatic fossil turtle from the late Paleocene to early Eocene of North America. Previous analyses suggested affiliation with Testudinoidea, in particular the big-headed turtle Platysternon megacephalum, based on the presence of multiple musk-duct foramina and a large head. We here highlight previously undocumented characteristics for this turtle, notably the presence of short costiform processes, a rib-like axillary process, and a posterior plastral hinge. Phylogenetic analysis places Cardichelyon rogerwoodi within Testudinoidea but...

Data from: The genomic impact of historical hybridization with massive mitochondrial DNA introgression

Fernando A. Seixas, Pierre Boursot & José Melo-Ferreira
Background: The extent to which selection determines interspecific patterns of genetic exchanges enlightens the role of adaptation in evolution and speciation. Often reported extensive interspecific introgression could be selection-driven, but also result from demographic processes, especially in cases of invasive species replacements, which can promote introgression at their front. Because invasion and selective sweeps similarly mold variation, population genetics evidence for selection can only be gathered in an explicit demographic framework. The Iberian hare, Lepus...

Evolution under pH stress and high population densities leads to increased density-dependent fitness in the protist Tetrahymena thermophila

Felix Moerman, Angelina Arquint, Stefanie Merkli, Andreas Wagner, Florian Altermatt & Emanuel Fronhofer
Abiotic stress is a major force of selection that organisms are constantly facing. While the evolutionary effects of various stressors have been broadly studied, it is only more recently that the relevance of interactions between evolution and underlying ecological conditions, that is, eco-evolutionary feedbacks, have been highlighted. Here, we experimentally investigated how populations adapt to pH-stress under high population densities. Using the protist species Tetrahymena thermophila, we studied how four different genotypes evolved in response...

Registration Year

  • 2019
    7

Resource Types

  • Dataset
    7

Affiliations

  • Institut des Sciences de l'Evolution de Montpellier
    7
  • University of Notre Dame
    1
  • Duke University
    1
  • University of Minnesota
    1
  • Aarhus University
    1
  • University of Wisconsin-Madison
    1
  • University of Göttingen
    1
  • University of Freiburg
    1
  • University of Zurich
    1
  • Grenoble Alpes University
    1