12 Works

Data from: Species Selection Regime and Phylogenetic Tree Shape

George Verboom, Florian Boucher, David Ackerly, Lara Wootton & William Freyman
Species selection, the effect of heritable traits in generating between-lineage diversification rate differences, provides a valuable conceptual framework for understanding the relationship between traits, diversification and phylogenetic tree shape. An important challenge, however, is that the nature of real diversification landscapes – curves or surfaces which describe the propensity of species-level lineages to diversify as a function of one or more traits – remains poorly understood. Here we present a novel, time-stratified extension of the...

Grounding line of Denman Glacier, East Antarctica from satellite radar interferometry

Virginia Brancato, Eric Rignot, Pietro Milillo, Mathieu Morlighem, Jeremie Mouginot, Lu An, Bernd Scheuchl, Seong Su Jeong, Paola Rizzoli, Jose Luiz Bueso Bello & Pau Prats-Iraola
Grounding line, elevation changes, and melt rates maps of Denman Glacier, East Antarctica. Using satellite radar interferometry from the COSMO-SkyMed mission we map the grounding line of Denman Glacier, East Antarctica. We complement these data with some historical interferometric radar acquisition from the European satellite ERS-1/2. We present new maps of elevation changes on the grounded and floating portions of Denman Glacier obtained by temporally differencing TanDEM-X Digital Elevation Models.

Continued adaptation of C4 photosynthesis after an initial burst of changes in the Andropogoneae grasses

Matheus Bianconi, Jan Hackel, Maria Vorontsova, Adriana Alberti, Watchara Arthan, Sean Burke, Melvin Duvall, Elizabeth Kellogg, Sébastien Lavergne, Michael McKain, Alexandre Meunier, Colin Osborne, Paweena Traiperm, Pascal-Antoine Christin & Guillaume Besnard
C4 photosynthesis is a complex trait that sustains fast growth and high productivity in tropical and subtropical conditions and evolved repeatedly in flowering plants. One of the major C4 lineages is Andropogoneae, a group of ~ 1,200 grass species that includes some of the world's most important crops and species dominating tropical and some temperate grasslands. Previous efforts to understand C4 evolution in the group have compared a few model C4 plants to distantly related...

Using proxies of microbial community‐weighted means traits to explain the cascading effect of management intensity, soil and plant traits on ecosystem resilience in mountain grasslands

Gabin Piton, Nicolas Legay, Cindy Arnoldi, Sandra Lavorel, Jean-Christophe Clément, Arnaud Foulquier & Jean Christophe Clément
1. Trait-based approaches provide a framework to understand the role of functional biodiversity on ecosystem functioning under global change. While plant traits have been reported as potential drivers of soil microbial community composition and resilience, studies directly assessing microbial traits are scarce, limiting our mechanistic understanding of ecosystem functioning. 2. We used microbial biomass and enzyme stoichiometry, and mass-specific enzymes activity as proxies of microbial community-weighted mean (CWM) traits, to infer trade-offs in microbial strategies...

Data from: On-demand sildenafil as a treatment for Raynaud phenomenon: a series of n-of-1 trials

Matthieu Roustit, Joris Giai, Olivier Gaget, Charles Khouri, Myriam Mouhib, Adrien Lotito, Sophie Blaise, Christophe Seinturier, Fabien Subtil, Adeline Paris, Claire Cracowski, Bernard Imbert, Patrick Carpentier, Sunita Vohra & Jean-Luc Cracowski
Background: Treatment of Raynaud phenomenon (RP) with phosphodiesterase-5 inhibitors has shown moderate efficacy. Adverse effects decrease the risk–benefit profile of these drugs, and patients may not be willing to receive long-term treatment. On-demand single doses before or during exposure to cold may be a good alternative. Objective: To assess the efficacy and safety of on-demand sildenafil in RP. Design: Series of randomized, double-blind, n-of-1 trials. (ClinicalTrials.gov: NCT02050360). Setting: Outpatients at a French university hospital. Participants:...

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...

Annual Ice Velocity of the Greenland Ice Sheet (2010-2017)

Jeremie Mouginot, Eric Rignot, Bernd Scheuchl, Michael Wood & Romain Millan
We derive surface ice velocity using data from 16 satellite sensors deployed by 6 different space agencies. The list of sensors is given in the Table S1. The SAR data are processed from raw to single look complex using the GAMMA processor (www.gamma-rs.ch). All measurements rely on consecutive images where the ice displacement is estimated from tracking or interferometry (Joughin et al. 1998, Michel and Rignot 1999, Mouginot et al. 2012). Surface ice motion is...

Annual Ice Velocity of the Greenland Ice Sheet (2001-2010)

Jeremie Mouginot, Eric Rignot, Bernd Scheuchl, Michael Wood & Romain Millan
We derive surface ice velocity using data from 16 satellite sensors deployed by 6 different space agencies. The list of sensors and the year that they were used are listed in the following (Table S1). The SAR data are processed from raw to single look complex using the GAMMA processor (www.gamma-rs.ch). All measurements rely on consecutive images where the ice displacement is estimated from tracking or interferometry (Joughin et al. 1998, Michel and Rignot 1999,...

Glacier catchments/basins for the Greenland Ice Sheet

Jeremie Mouginot & Eric Rignot
We divide Greenland, including its peripheral glaciers and ice caps, into 260 basins grouped in seven regions: southwest (SW), central west (CW), (iii) northwest (NW), north (NO), northeast (NE), central east (CE), and southeast (SE). These regions are selected based on ice flow regimes, climate, and the need to partition the ice sheet into zones comparable in size (200,000 km2 to 400,000 km2) and ice production (50 Gt/y to 100 Gt/y, or billion tons per...

Data from: Phylogenomic analysis of the explosive adaptive radiation of the Espeletia complex (Asteraceae) in the tropical Andes

Charles Pouchon, Angel Fernandez, Jafet Nassar, Frédéric Boyer, Serge Aubert, Sebastien Lavergne & Jesus Mavarez
The subtribe Espeletiinae (Asteraceae) is endemic to the high-elevations in the Northern Andes. It exhibits an exceptional diversity of species, growth-forms and reproductive strategies, including large trees, dichotomous trees, shrubs and the extraordinary giant monocarpic or polycarpic caulescent rosettes, considered as a classic example of adaptation in tropical high-elevation ecosystems. The subtribe has long been recognised as a prominent case of adaptive radiation, but the understanding of its evolution has been hampered by a lack...

Electrical conductivity versus temperature in freezing conditions: a field experiment using a basket geothermal heat exchanger

Andre Revil, A. Coperey & B. Stutz
In-situ experiment. Geothermal setup: Five heat exchangers (HE) are arranged in a line and are buried between 1.1 and 3.5 meters. Just two baskets worked: one (HE.5) for a correct functioning of the heat pump and the other (HE1) to freeze the ground. only, this last exchanger (HE1) has been monitored in temperature and electrical resistivity tomography. The basket HE.5 is too far away to have an influence during this experiment, the heat pump was...

Data from: Cold adaptation in the Asian tiger mosquito’s native range precedes its invasion success in temperate regions

Stéphanie Sherpa, Michael G. B. Blum & Laurence Després
Adaptation to environmental conditions within the native range of exotic species can condition the invasion success of these species outside their range. The striking success of the Asian tiger mosquito, Aedes albopictus, to invade temperate regions has been attributed to the winter survival of diapause eggs in cold environments. In this study, we evaluate genetic polymorphisms (SNPs) and wing morphometric variation among three biogeographical regions of the native range of A. albopictus. Reconstructed demographic histories...

Registration Year

  • 2019
    12

Resource Types

  • Dataset
    12

Affiliations

  • Grenoble Alpes University
    12
  • Jet Propulsion Lab
    4
  • Laboratoire d'Écologie Alpine
    3
  • University of California, Irvine
    3
  • Donald Danforth Plant Science Center
    1
  • Royal Botanic Gardens
    1
  • Northern Illinois University
    1
  • Hospices Civils de Lyon
    1
  • University of Alberta
    1
  • University of Minnesota
    1