126 Works

Data from: Mimicry refinement: Phenotypic variations tracking the local optimum

Claire Mérot, Yann Le Poul, Marc Théry & Mathieu Joron
1. Müllerian mimicry between chemically defended preys is a textbook example of natural selection favouring phenotypic convergence onto a shared warning signal. Studies of mimicry have concentrated on deciphering the ecological and genetic underpinnings of dramatic switches in mimicry association, producing a well-known mosaic distribution of mimicry patterns across geography. However, little is known about the accuracy of resemblance between natural co-mimics when the local phenotypic optimum varies. 2. In this study, using analyses of...

Data from: Inferring bounded evolution in phenotypic characters from phylogenetic comparative data

Florian C. Boucher & Vincent Démery
Our understanding of phenotypic evolution over macroevolutionary timescales largely relies on the use of stochastic models for the evolution of continuous traits over phylogenies. The two most widely used models, Brownian motion and the Ornstein–Uhlenbeck (OU) process, differ in that the latter includes constraints on the variance that a trait can attain in a clade. The OU model explicitly models adaptive evolution toward a trait optimum and has thus been widely used to demonstrate the...

Data from: Functional homogenization of flower visitor communities with urbanization

Nicolas Deguines, Romain Julliard, Mathieu De Flores & Colin Fontaine
Land-use intensification and resulting habitat loss are put forward as the main causes of flower visitor decline. However, the impact of urbanization, the prime driver of land-use intensification in Europe, is poorly studied. In particular, our understanding of whether and how it affects the composition and functioning of flower visitor assemblages is scant, yet required to cope with increasing urbanization worldwide. Here, we use a nation-wide dataset of plant-flower visitor (Coleoptera, Diptera, Hymenoptera, Lepidoptera) interactions...

Data from: Evidence for an optimal level of connectivity for establishment and colonization

Thibaut Morel-Journel, Camille Piponiot, Elodie Vercken & Ludovic Mailleret
Dispersal is usually associated with the spread of invasive species, but it also has two opposing effects, one decreasing and the other increasing the probability of establishment. Indeed, dispersal both slows population growth at the site of introduction and increases the likelihood of surrounding habitat being colonised. The connectivity of the introduction site is likely to affect dispersal, and, thus, establishment, according to the dispersal behaviour of individuals. Using individual-based models and microcosm experiments on...

Data from: Parallel genetic divergence among coastal-marine ecotype pairs of European anchovy explained by differential introgression after secondary contact

Alan Le Moan, Pierre-Alexandre Gagnaire, Francois Bonhomme & P.-A. Gagnaire
Ecophenotypic differentiation among replicate ecotype pairs within a species complex is often attributed to independent outcomes of parallel divergence driven by adaptation to similar environmental contrasts. However, the extent to which parallel phenotypic and genetic divergence patterns have emerged independently is increasingly questioned by population genomic studies. Here, we document the extent of genetic differentiation within and among two geographic replicates of the coastal and marine ecotypes of the European anchovy (Engraulis encrasicolus) gathered from...

Data from: Energy expenditure of adult green turtles (Chelonia mydas) at their foraging grounds and during simulated oceanic migration

Manfred R. Enstipp, Katia Ballorain, Stéphane Ciccione, Tomoko Narazaki, Katsufumi Sato & Jean-Yves Georges
Measuring the energy requirements of animals under natural conditions and determining how acquired energy is allocated to specific activities is a central theme in ecophysiology. Turtle reproductive output is fundamentally linked with their energy balance so a detailed understanding of marine turtle energy requirements during the different phases of their life cycle at sea is essential for their conservation. We used the non-invasive accelerometry technique to investigate the activity patterns and energy expenditure (EE) of...

Data from: Food supplementation mitigates dispersal-dependent differences in nest defence in a passerine bird.

Charlotte Récapet, Grégory Daniel, Joëlle Taroni, Pierre Bize & Blandine Doligez
Dispersing and non-dispersing individuals often differ in phenotypic traits (e.g. physiology, behaviour), but to what extent these differences are fixed or driven by external conditions remains elusive. We experimentally tested whether differences in nest-defence behaviour between dispersing and non-dispersing individuals changed with local habitat quality in collared flycatchers, by providing additional food during the nestling rearing period. In control (non-food-supplemented) nests, dispersers were less prone to defend their brood compared with non-dispersers, whereas in food-supplemented...

Data from: Intra-specific variability of hindlimb length in the palmate newt: an indicator of population isolation induced by habitat fragmentation?

Audrey Trochet, Hugo Le Chevalier, Boris Baillat, Laurent Barthe, Gilles Pottier, Olivier Calvez, Alexandre Ribéron & Simon Blanchet
Habitat fragmentation is one of the main drivers of global amphibian decline. Anthropogenic landscape elements can act as barriers, hindering the dispersal that is essential for maintaining gene flow between populations. Dispersal ability can be influenced by locomotor performance, which in turn can depend on morphological traits, such as hindlimb length (HLL) in amphibians. Here, we tested relationships between HLL and environmental variables—road types, forests and agricultural lands—among 35 sub-populations of palmate newts (Lissotriton helveticus)...

Data from: Crossing fitness valleys: empirical estimation of adaptive landscape associated with polymorphic mimicry

Mónica Arias, Yann Le Poul, Mathieu Chouteau, Romain Boisseau, Neil Rosser, Marc Théry & Violaine Llaurens
Characterising the fitness landscapes associated with polymorphic adaptive traits enables the investigation of the mechanisms allowing transitions between fitness peaks. Here, we explore how natural selection can promote genetic mechanisms preventing heterozygous phenotypes from falling into non-adaptive valleys. Polymorphic mimicry is an ideal system to investigate such fitness landscapes, because the direction of selection acting on complex mimetic colour patterns can be predicted by the local mimetic community composition. Using more than 5,000 artificial butterflies...

Data from: Trade-offs in an ant–plant–fungus mutualism

Jérôme Orivel, Pierre-Jean Malé, Jérémie Lauth, Olivier Roux, Frédéric Petitclerc, Alain Dejean & Céline Leroy
Species engaged in multiple, simultaneous mutualisms are subject to trade-offs in their mutualistic investment if the traits involved in each interaction are overlapping, which can lead to conflicts and affect the longevity of these associations. We investigate this issue via a tripartite mutualism involving an ant plant, two competing ant species and a fungus the ants cultivate to build galleries under the stems of their host plant to capture insect prey. The use of the...

Data from: Proteroctopus ribeti in coleoid evolution

Isabelle Kruta, Isabelle Rouget, Sylvain Charbonnier, Jérémie Bardin, Vincent Fernandez, Damien Germain, Arnaud Brayard & Neil Landman
Palaeontological data are key elements for inferring ancestral character states and the assembly of character complexes, but cephalopod fossils preserving soft tissues are very rare. The exceptionally well-preserved, unique specimen of Jurassic Proteroctopus ribeti Fischer & Riou from the Lagerstätte of La-Voulte-sur-Rhône (c. 165 Ma, France) is one of the few fossil octopod related taxa, but is rarely considered in evolutionary studies. In this paper, we used synchrotron microtomography to reappraise its external characters and...

Data from: The Tara Oceans voyage reveals global diversity and distribution patterns of marine planktonic ciliates

Anna Gimmler, Ralf Korn, Colomban De Vargas, Stéphane Audic & Thorsten Stoeck
Illumina reads of the SSU-rDNA-V9 region obtained from the circumglobal Tara Oceans expedition allow the investigation of protistan plankton diversity patterns on a global scale. We analyzed 6,137,350 V9-amplicons from ocean surface waters and the deep chlorophyll maximum, which were taxonomically assigned to the phylum Ciliophora. For open ocean samples global planktonic ciliate diversity is relatively low (ca. 1,300 observed and predicted ciliate OTUs). We found that 17% of all detected ciliate OTUs occurred in...

Data from: Does competitive interaction drive species recognition in a house mouse secondary contact zone?

Yasmin Latour & Guila Ganem
Miscommunication may induce a high risk of unnecessary escalated fights between competitors (populations to species), resulting in selection favoring signal divergence through agonistic character displacement (ACD). When signals allowing discrimination between competitors are also involved in mate recognition, ACD could explain reproductive character displacement (RCD). We tested interference competition between males as a potential driver of RCD (here, subspecies recognition) in a secondary contact zone between two mouse subspecies (Mus musculus musculus and Mus musculus...

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: Reproductive success is driven by local site fidelity despite stronger specialisation by individuals for large scale habitat preference

Samantha Clare Patrick & Henri Weimerskirch
1. There is widespread evidence that within populations, specialists and generalists can coexist and this is particularly prevalent in marine ecosystems, where foraging specialisations are evident. 2. While individuals may limit niche overlap by consistently foraging in specific areas, site fidelity may also emerge as an artefact of habitat choice but both drivers and fitness consequences of site fidelity are poorly understood. 3. Here we examine an individual metric of site and habitat fidelity, using...

Data from: Individual shifts toward safety explain age-related foraging distribution in a gregarious shorebird

Piet J. Van Den Hout, Theunis Piersma, Job Ten Horn, Bernard Spaans & Tamar Lok
Although age-related spatial segregation is ubiquitous, the underlying mechanisms are poorly understood. Here, we aim to elucidate the processes behind a previously established age-related foraging distribution of red knots (Calidris canutus canutus) in their main wintering area in West Africa (Banc d’Arguin, Mauritania). Based on 10 years of observations of 1232 uniquely color-ringed individuals of 1 to 18+ years old, we examined whether the observed age-related foraging distribution resulted from 1) spatial differences in mortality...

Data from: Anthropogenic transport of species across native ranges: unpredictable genetic and evolutionary consequences

Jamie Hudson, Frédérique Viard, Charlotte Roby & Marc Rius
Human activities are responsible for the translocation of vast amounts of organisms, altering natural patterns of dispersal and gene flow. Most research to date has focused on the consequences of anthropogenic transportation of non-indigenous species within introduced ranges, with little research focusing on native species. Here, we compared genetic patterns of the sessile marine invertebrate, Ciona intestinalis, which has highly restricted dispersal capabilities. We collected individuals in a region of the species' native range where...

Data from: Fisher’s geometrical model and the mutational patterns of antibiotic resistance across dose gradients

Noémie Harmand, Romain Gallet, Roula Jabbour-Zahab, Guillaume Martin & Thomas Lenormand
Fisher's geometrical model (FGM) has been widely used to depict the fitness effects of mutations. It is a general model with few underlying assumptions that gives a large and comprehensive view of adaptive processes. It is thus attractive in several situations, e.g. adaptation to antibiotics, but comes with limitations, so that more mechanistic approaches are often preferred to interpret experimental data. It might be possible however to extend FGM assumptions to better account for mutational...

Data from: One species for one island? Unexpected diversity and weak connectivity in a widely distributed tropical hydrozoan

Bautisse Postaire, Pauline Gélin, J. Henrich Bruggemann & Helene Magalon
Isolation by distance (IBD) is one of the main modes of differentiation in marine species, above all in species presenting low dispersal capacities. This study reports the genetic structuring in the tropical hydrozoan Lytocarpia brevirostris α (sensu Postaire et al, 2016b), a brooding species, from 13 populations in the Western Indian Ocean (WIO) and one from New Caledonia (Tropical Southwestern Pacific). At the local scale, populations rely on asexual propagation at short distance, which was...

Data from: The third dimension: a novel set-up for filming coelacanths in their natural environment

Thierry Décamps, Anthony Herrel, Laurent Ballesta, Florian Holon, Thibault Rauby, Yannick Gentil, Cédric Gentil, Hugo Dutel, Regis Debruyne, Jean-Benoit Charrassin, Guillaume Eveillard, Gaël Clément & Marc Herbin
Here, we describe a novel design to obtain three-dimensional data on the movements of aquatic organisms at depths of up to 140 m. The set-up consists of two synchronized high-speed cameras fixed to two articulated arms. The set-up was successfully used to film and quantify the locomotion of coelacanths Latimeria chalumnae living at a depth of about 120 m in Sodwana Bay, South Africa. As an example, the detailed motion of the dorsal fin is...

Data from: Predicting biotic interactions and their variability in a changing environment

Kohmei Kadowaki, Claire G. Barbera, William Godsoe, Frédéric Delsuc & Nicolas Mouquet
Global environmental change is altering the patterns of biodiversity worldwide. Observation and theory suggest that species' distributions and abundances depend on a suite of processes, notably abiotic filtering and biotic interactions, both of which are constrained by species' phylogenetic history. Models predicting species distribution have historically mostly considered abiotic filtering and are only starting to integrate biotic interaction. However, using information on present interactions to forecast the future of biodiversity supposes that biotic interactions will...

Data from: Loss of genetic diversity and increased embryonic mortality in non-native lizard populations

Sozos N. Michaelides, Geoffrey M. While, Natalia Zajac, Fabien Aubret, Brittny Calsbeek, Roberto Sacchi, Marco A. L. Zuffi & Tobias Uller
Many populations are small and isolated with limited genetic variation and high risk of mating with close relatives. Inbreeding depression is suspected to contribute to extinction of wild populations, but the historical and demographic factors that contribute to reduced population viability are often difficult to tease apart. Replicated introduction events in non-native species can offer insights into this problem because they allow us to study how genetic variation and inbreeding depression are affected by demographic...

Data from: Unravelling the role of host plant expansion in the diversification of a Neotropical butterfly genus

Melanie McClure & Marianne Elias
Background: Understanding the processes underlying diversification is a central question in evolutionary biology. For butterflies, access to new host plants provides opportunities for adaptive speciation. On the one hand, locally abundant host species can generate ecologically significant selection pressure. But a diversity of host plant species within the geographic range of each population and/or species might also eliminate any advantage conferred by specialization. This paper focuses on four Melinaea species, which are oligophagous on the...

Data from: Drosophila pachea asymmetric lobes are part of a grasping device and stabilize one-sided mating

Flor T. Rhebergen, Virginie Orgogozo, Julien Dumont, Menno Schilthuizen & Michael Lang
Background: Multiple animal species exhibit morphological asymmetries in male genitalia. In insects, left-right genital asymmetries evolved many times independently and have been proposed to appear in response to changes in mating position. However, little is known about the relationship between mating position and the interaction of male and female genitalia during mating, and functional analyses of asymmetric morphologies in genitalia are virtually non-existent. We investigated the relationship between mating position, asymmetric genital morphology and genital...

Data from: Evidence of human infection by a new mammarenavirus endemic to Southeastern Asia.

Kim R. Blasdell, Veasna Duong, Marc Eloit, Fabrice Chretien, Sowath Ly, Vibol Hul, Vincent Deubel, Serge Morand & Philippe Buchy
Southeastern Asia is a recognised hotspot for emerging infectious diseases, many of which have an animal origin. Mammarenavirus infections contribute significantly to the human disease burden in both Africa and the Americas, but little data exists for Asia. To date only two mammarenaviruses, the widely spread lymphocytic choriomeningitis virus and the recently described Wēnzhōu virus have been identified in this region, but the zoonotic impact in Asia remains unknown. Here we report the presence of...

Registration Year

  • 2016
    126

Resource Types

  • Dataset
    126

Affiliations

  • French National Centre for Scientific Research
    126
  • University of Montpellier
    9
  • French National Institute for Agricultural Research
    8
  • Sorbonne University
    6
  • University of Toulouse
    5
  • University of Lyon System
    5
  • University of Aberdeen
    4
  • Université Paul-Valéry Montpellier
    3
  • Institut de Recherche pour le Développement
    3
  • Paul Sabatier University
    3