68 Works

Data from: Biotic and abiotic variables influencing plant litter breakdown in streams: a global study

Luz Boyero, Richard Pearson, Cang Hui, Mark Gessner, Javier Perez, Markos Alexandrou, Manuel Graça, Bradley Cardinale, Ricardo Albariño, M. Arunachalam, Leon Barmuta, Andrew Boulton, Andreas Bruder, Marcos Callisto, Eric Chauvet, Russell Death, David Dudgeon, Andrea Encalada, Veronica Ferreira, Ricardo Figueroa, Alex Flecker, , Julie Helson, Tomoya Iwata, Tajang Jinggut … & Catherine Yule
Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, have high rates of carbon dioxide evasion and they contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We present a global-scale study of litter breakdown in streams to compare the roles of biotic, climatic and...

Data from: The effects of food web structure on ecosystem function exceeds those of precipitation

M. Kurtis Trzcinski, Diane S. Srivastava, Bruno Corbara, Olivier Dézerald, Céline Leroy, Jean-François Carrias, Alain Dejean & Régis Céréghino
Ecosystems are being stressed by climate change, but few studies have tested food web responses to changes in precipitation patterns and the consequences to ecosystem function. Fewer still have considered whether results from one geographic region can be applied to other regions, given the degree of community change over large biogeographic gradients. We assembled, in one field site, three types of macroinvertebrate communities within water-filled bromeliads. Two represented food webs containing both a fast filter...

Data from: Limited gene dispersal and spatial genetic structure as stabilizing factors in an ant-plant mutualism

Pierre-Jean G. Malé, Céline Leroy, Pierre Humblot, Alain Dejean, Angélique Quilichini & Jérôme Orivel
Comparative studies of the population genetics of closely associated species are necessary to properly understand the evolution of these relationships because gene flow between populations affects the partners' evolutionary potential at the local scale. As a consequence (at least for antagonistic interactions), asymmetries in the strength of the genetic structures of the partner populations can result in one partner having a co-evolutionary advantage. Here, we assess the population genetic structure of partners engaged in a...

Data from: Onset of fights and mutual assessment in ant founding queens

Kevin Berthelot, Felipe Ramon Portugal & Raphael Jeanson
In animals, the progress and outcomes of contests can be influenced by an individual's own condition, its opponent's condition or a combination of both. The use of chemical information to assess the quality of rivals has been underestimated despite its central role in the regulation of social interactions in many taxa. Here, we studied pairwise contests between founding queens of the ant Lasius niger to investigate whether the decision to engage in agonistic interactions relies...

Data from: Functional traits and environmental conditions predict community isotopic niches and energy pathways across spatial scales

Olivier Dézerald, Diane S. Srivastava, Régis Céréghino, Jean-François Carrias, Bruno Corbara, Vinicius F. Farjalla, Céline Leroy, Nicholas A. C. Marino, Gustavo C. O. Piccoli, Barbara A. Richardson, Michael J. Richardson, Gustavo Q. Romero & Angélica L. González
1. Despite ongoing research in food web ecology and functional biogeography, the links between food-web structure, functional traits and environmental conditions across spatial scales remain poorly understood. Trophic niches, defined as the amount of energy and elemental space occupied by species and food webs, may help bridge this divide. 2. Here, we ask how the functional traits of species, the environmental conditions of habitats and the spatial scale of analysis jointly determine the characteristics of...

Data from: Perception of contextual size illusions by honeybees in restricted and unrestricted viewing conditions

Scarlett R. Howard, Aurore Avargues-Weber, Jair Eduardo Garcia Mendoza, Devi Stuart-Fox, Adrian G. Dyer & Jair E. Garcia
How different visual systems process images and make perceptual errors can inform us about cognitive and visual processes. One of the strongest geometric errors in perception is a misperception of size depending on the size of surrounding objects, known as the Ebbinghaus or Titchener illusion. The ability to perceive the Ebbinghaus illusion appears to vary dramatically among vertebrate species, and even populations, but this may depend on whether the viewing distance is restricted. We tested...

Data from: Pheromone-induced accuracy of nestmate recognition in carpenter ants: simultaneous decrease of Type I and Type II errors

Natacha Rossi, David Baracchi, Martin Giurfa & Patrizia D'Ettorre
The ecological and evolutionary success of social insects relies on their ability to efficiently discriminate between group members and aliens. Nestmate recognition occurs by phenotype matching, the comparison of the referent (colony) phenotype to the one of an encountered individual. Based on the level of dissimilarity between the two, the discriminator accepts or rejects the target. The tolerated degree of mismatch is predicted by the acceptance threshold model, which assumes adaptive threshold shifts depending on...

Data from: Biotic predictors complement models of bat and bird responses to climate and tree diversity in European forests

Luc Barbaro, Eric Allan, Evy Ampoorter, Bastien Castagneyrol, Yohan Charbonnier, Hans De Wandeler, Christian Kerbiriou, Harriet Milligan, Aude Vialatte, Monique Carnol, Marc Deconchat, Pallieter De Smedt, Herve Jactel, Julia Koricheva, Isabelle Le Viol, Bart Muys, Michael Scherer-Lorenzen, Kris Verheyen & Fons Van Der Plas
Bats and birds are key providers of ecosystem services in forests. How climate and habitat jointly shape their communities is well studied, but whether biotic predictors from other trophic levels may improve bird and bat diversity models is less known, especially across large bioclimatic gradients. Here, we achieved multi-taxa surveys in 209 mature forests replicated in six European countries from Spain to Finland, to investigate the importance of biotic predictors (i.e., the abundance or activity...

Data from: Signatures of selection and environmental adaptation across the goat genome post-domestication

Licia Colli, Marco Milanesi, Andrea Talenti, Francesca Bertolini, Minhui Chen, Alessandra Crisà, Kevin Daly, Marcello Del Corvo, Bernt Guldbrandtsen, Johannes A. Lenstra, Ben D. Rosen, Elia Vajana, Gennaro Catillo, Stéphane Joost, Ezequiel Luis Nicolazzi, Estelle Rochat, Max F. Rothschild, Bertrand Servin, Tad S. Sonstegard, Roberto Steri, Curtis P. Van Tassel, Paolo Ajmone-Marsan, Paola Crepaldi, Alessandra Stella & AdaptMap Consortium
Background: Since goat was domesticated 10,000 years ago, many factors have contributed to the differentiation of goat breeds and these are classified mainly into two types: (i) adaptation to different breeding systems and/or purposes and (ii) adaptation to different environments. As a result, approximately 600 goat breeds have developed worldwide; they differ considerably from one another in terms of phenotypic characteristics and are adapted to a wide range of climatic conditions. In this work, we...

Data from: C4 anatomy can evolve via a single developmental change

Marjorie R. Lundgren, Luke T. Dunning, Jill K. Olofsson, Jose J. Moreno Villena, Jacques W. Bouvier, Tammy L. Sage, Roxana Khosravesh, Stefanie Sultmanis, Matt Stata, Brad S. Ripley, Maria S. Vorontsova, Guillaume Besnard, Claire Adams, Nicholas Cuff, Anthony Mapaura, Matheus E. Bianconi, Christine M. Long, Pascal-Antoine Christin, Colin P. Osborne, Roxana Khoshravesh & Jose J. Moreno-Villena
C4 photosynthesis boosts productivity in warm environments. Paradoxically, this complex physiological process evolved independently in numerous plant lineages, despite requiring specialized leaf anatomy. The anatomical modifications underlying C4 evolution have previously been evaluated through interspecific comparisons, which capture numerous changes besides those needed for C4 functionality. Here, we quantify the anatomical changes accompanying the transition between non-C4 and C4 phenotypes by sampling widely across the continuum of leaf anatomical traits in the grass Alloteropsis semialata....

Data from: ‘Becoming a species by becoming a pest’ or how two maize pests of the genus Ostrinia possibly evolved through parallel ecological speciation events

Denis Bourguet, Sergine Ponsard, Rejane Streiff, Serge Meusnier, Philippe Audiot, Jing Li & Zhen-Ying Wang
New agricultural pest species attacking introduced crops may evolve from pre-existing local herbivores by ecological speciation, thereby becoming a species by becoming a pest. We compare the evolutionary pathways by which two maize pests (the Asian and the European corn borers, ACB and ECB) in the genus Ostrinia (Lepidoptera, Crambidae) probably diverged from an ancestral species close to the current Adzuki bean borer (ABB). We typed larval Ostrinia populations collected on maize and dicotyledons across...

Data from: Evolutionary processes driving spatial patterns of intra-specific genetic diversity in river ecosystems

Ivan Paz-Viñas, Géraldine Loot, Virginie M. Stevens, Simon Blanchet & I. Paz-Vinas
Describing, understanding and predicting the spatial distribution of genetic diversity is a central issue in biological sciences. In river landscapes, it is generally predicted that neutral genetic diversity should increase downstream, but there have been few attempts to test and validate this assumption across taxonomic groups. Moreover, it is still unclear what are the evolutionary processes that may generate this apparent spatial pattern of diversity. Here, we quantitatively synthesized published results from diverse taxa living...

Data from: Tropical shift in decomposers’ relative contribution to leaf litter breakdown in two Guinean streams

Nathalie Sia Doumbou Tenkiano & Eric Chauvet
The hypothesis that leaf litter breakdown in Guinean streams is governed by microorganisms was confirmed, supporting the reported latitudinal shift in decomposers’ contribution to this process. The large body size of dominant macroinvertebrate decomposers (shrimps) only partially compensated for their very low densities. In contrast with other tropical regions mostly dominated by insect larvae, the functional consequences of global warming on these stream ecosystems may be less severe due to the lower sensitivity of crustaceans...

Data from: The roots of the drought: hydrology and water uptake strategies mediate forest-wide demographic response to precipitation

Rutuja Chitra-Tarak, Laurent Ruiz, H. S. Dattaraja, M. S. Mohan Kumar, Jean Riotte, H. S. Suresh, Sean M. McMahon & Raman Sukumar
Drought-induced tree mortality is expected to increase globally due to climate change, with profound implications for forest composition, function and global climate feedbacks. How drought is experienced by different species is thought to depend fundamentally on where they access water vertically below ground, but this remains untracked so far due to the difficulty of measuring water availability at depths at which plants access water (few to several tens of meters), the broad temporal scales at...

Data from: Longitudinal analysis of impulse control disorders in Parkinson’s disease

Jean-Christophe Corvol, Fanny Artaud, Florence Cormier-Dequaire, Olivier Rascol, Franck Durif, Pascal Derckinderen, Ana-Raquel Marques, Frédéric Bourdain, Jean-Philippe Brandel, Fernando Pico, Lucette Lacomblez, Cecilia Bonnet, Christine Brefel-Courbon, Fabienne Ory-Magne, David Grabli, Stephan Klebe, Graziella Mangone, Hana You, Valérie Mesnages, Pei-Chen Lee, Alexis Brice, Marie Vidailhet & Alexis Elbaz
Objective: To investigate the longitudinal dose-effect relationship between dopamine replacement therapy and impulse control disorders (ICDs) in Parkinson’s disease (PD). Methods: We used data from a multicentre longitudinal cohort of consecutive PD patients with ≤5y disease duration at baseline followed annually up to 5y. ICDs were evaluated during face-to-face semi-structured interviews with movement disorder specialists. Generalized estimating equations Poisson models with robust variance were used to study the association between several time-dependent definitions of dopamine...

Data from: Phenotypic determinants of inter-individual variability of litter consumption rate in a detritivore population

Thibaut Rota, Jérémy Jabiol, Éric Chauvet & Antoine Lecerf

Data from: Mate-copying for a costly variant in Drosophila melanogaster females

Sabine Nöbel, Etienne Danchin & Guillaume Isabel
Mate-copying is a form of social learning in which witnessing sexual interactions between conspecifics biases an observer individuals’ future mate-choice. Mate-copying exists in many vertebrates, as well as in Drosophila melanogaster. Here, we show that female fruit flies can copy the choice for mutant males [curly wings (Cy) mutants versus wild types (WT)] despite the fact that mating with Cy males induce a significant fitness cost for the observer female. When facing WT and Cy...

Data from: Higher iridescent-to-pigment optical effect in flowers facilitates learning, memory and generalization in foraging bumblebees

Géraud De Premorel, Martin Giurfa, Christine Andraud & Doris Gomez
Iridescence—change of colour with changes in the angle of viewor of illumination— is widespread in the living world but its functions remain poorly understood. The presence of iridescence has been suggested in flowers where diffraction gratings generate iridescent colours. Such colours have been suggested to serve plant–pollinator communication. Here we tested whether a higher iridescence relative to corolla pigmentation would facilitate discrimination, learning and retention of iridescent visual targets. We conditioned bumblebees (Bombus terrestris) to...

Data from: On the accuracy of genomic selection

Charles-Elie Rabier, Philippe P. Barre, Torben T. Asp, Gilles G. Charmet & Brigitte B. Mangin
Genomic selection is focused on prediction of breeding values of selection candidates by means of high density of markers. It relies on the assumption that all quantitative trait loci (QTLs) tend to be in strong linkage disequilibrium (LD) with at least one marker. In this context, we present theoretical results regarding the accuracy of genomic selection, i.e., the correlation between predicted and true breeding values. Typically, for individuals (so-called test individuals), breeding values are predicted...

Data from: Adaptation to climate through flowering phenology: a case study in Medicago truncatula

Concetta Burgarella, Nathalie Chantret, Laurène Gay, Jean-Marie Prosperi, Maxime Bonhomme, Peter Tiffin, Nevin D. Young & Joelle Ronfort
Local climatic conditions likely constitute an important selective pressure on genes underlying important fitness-related traits such as flowering time and in many species flowering phenology and climatic gradients strongly covary. To test whether climate shapes genetic variation on flowering time genes and to identify candidate flowering genes involved in the adaptation to environmental heterogeneity, we used a large M. truncatula core collection to examine the association between nucleotide polymorphisms at 224 candidate genes and both...

Data from: Beyond dispersal versus philopatry? Alternative behavioural tactics of juvenile roe deer in a heterogeneous landscape

Delphine Ducros, Nicolas Morellet, Rémi Patin, Kamal Atmeh, Lucie Debeffe, Bruno Cargnelutti, Yannick Chaval, Bruno Lourtet, Aurélie Coulon & A. J. Mark Hewison
Although inter-individual heterogeneity in many aspects of dispersal behaviour is widely reported, this key life-history trait is predominantly modelled as a dichotomous state of philopatry vs. dispersal. The increasing body of evidence for dispersal syndromes (i.e. a suite of correlated morphological, behavioural, and life-history traits associated with dispersal) implies substantial but, to date, undocumented individual heterogeneity in behavioural tactics during dispersal. Using a large sample (N = 154) of GPS monitored juvenile roe deer (Capreolus...

Data from: RAD‐sequencing for estimating genomic relatedness matrix‐based heritability in the wild: a case study in roe deer

Laura Gervais, Charles Perrier, Maria Bernard, Joël Merlet, Josephine M. Pemberton, Benoit Pujol & Erwan Quemere
Estimating the evolutionary potential of quantitative traits and reliably predicting responses to selection in wild populations are important challenges in evolutionary biology. The genomic revolution has opened up opportunities for measuring relatedness among individuals with precision, enabling pedigree-free estimation of trait heritabilities in wild populations. However, until now, most quantitative genetic studies based on a genomic relatedness matrix (GRM) have focused on long-term monitored populations for which traditional pedigrees were also available, and have often...

Data from: Habitat effects on intra-species variation in functional morphology: evidence from freshwater fish

Fangmin Shuai, Shixiao Yu, Sovan Lek & Xinhui Li
Biotic-environment interactions have long been considered an important factor in functional phenotype differentiation in organisms. The differentiation processes determining functional phenotypes can reveal important mechanisms yielding differences in specific functions of animal traits in the ecosystem. In the present study we examined functional morphological variations in relation to increasing geographic altitude. Six fish species were examined for how environment factors affect intra-specific functional morphology in the subtropical Pearl River in southern China. Functional morphology traits...

Data from: Crop pests and predators exhibit inconsistent responses to surrounding landscape composition

Daniel S. Karp, Rebecca Chaplin-Kramer, Timothy D. Meehan, Emily A. Martin, Fabrice DeClerck, Heather Grab, Claudio Gratton, Lauren Hunt, Ashley E. Larsen, Alejandra Martínez-Salinas, Megan E. O’Rourke, Adrien Rusch, Katja Poveda, Mattias Jonsson, Jay A. Rosenheim, Nancy A. Schellhorn, Teja Tscharntke, Stephen D. Wratten, Wei Zhang, Aaron L. Iverson, Lynn S. Adler, Matthias Albrecht, Audrey Alignier, Gina M. Angelella, Muhammad Zubair Anjum … & Yi Zou
The idea that noncrop habitat enhances pest control and represents a win–win opportunity to conserve biodiversity and bolster yields has emerged as an agroecological paradigm. However, while noncrop habitat in landscapes surrounding farms sometimes benefits pest predators, natural enemy responses remain heterogeneous across studies and effects on pests are inconclusive. The observed heterogeneity in species responses to noncrop habitat may be biological in origin or could result from variation in how habitat and biocontrol are...

La fabrique des corps sexués, entre médicalisation et pathologisation. La place du corps dans les trans studies en France

Anastasia Meidani & Arnaud Alessandrin
Chapitre 8 de: H. Martin & M. Roca i Escoda (dir.), Sexuer le corps. Huit études sur des pratiques médicales d'hier et d'aujourd'hui (pp. 153-156), Lausanne : Éditions HETSL.

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  • University of Toulouse
  • French National Centre for Scientific Research
  • Paul Sabatier University
  • University of British Columbia
  • University of Adelaide
  • Ghent University
  • Research Institute for Nature and Forest
  • University of Toronto
  • University of Padua
  • Centre national de la recherche scientifique