38 Works

Data from: Are fission-fusion dynamics consistent among populations? A large-scale study with Cape buffalo

Elodie Wielgus, Daniel Cornélis, Michel De Garine-Wichatitsky, Bradley Cain, Hervé Fritz, Eve Miguel, Hugo Valls-Fox, Alexandre Caron & Simon Chamaillé-Jammes
Fission-fusion dynamics allow animals to manage costs and benefits of group living by adjusting group size. The degree of intraspecific variation in fission-fusion dynamics across the geographical range is poorly known. During 2008-2016, 38 adult female Cape buffalo were equipped with GPS collars in three populations located in different protected areas (Gonarezhou National Park and Hwange National Park, Zimbabwe; Kruger National Park, South Africa) to investigate the patterns and environmental drivers of fission-fusion dynamics among...

Medicago sativa cv. Mercedes genome portal

Sebastien Carrere, Jérôme Gouzy, Frédéric Debelle, Bernadette Julier & Philippe Barre

IASI-FT Sea Surface Temperature (from IASI/Metop-A)

Ana Claudia Parracho & Sarah Safieddine
The IASI Sea Surface Temperature (SST) product is a monthly (level L3), 1×1 degree global dataset of skin temperatures over the sea derived from the IASI satellite radiances data. The dataset consists of monthly mean TXT files. Each file is a grid organized by latitude (-90 to 89 °N) and longitude (-180 to 180 °E). The land and sea ice grid points are filled using NaN. Size of the grid: 180 lines and 361 columns....

Les restes organiques minéralisés : un nouveau champ d’investigation en contexte funéraire. Exemple de la nécropole de Merxheim « Obere Reben » (Haut-Rhin)

Armelle Charrié-Duhaut, Fabienne Médard, Clotilde Proust & Hélène Barrand-Emam
Rarement intelligibles, les restes organiques minéralisés représentent un potentiel informatif sous-estimé. Directement liés à l’étude de l’objet archéologique en métal qui leur sert de support et a permis leur conservation, ils constituent un champ d’investigation quasi inépuisable et d’une grande diversité. La complexité intrinsèque des matériaux, la variabilité des dégradations possibles, la prise en compte des contextes d’enfouissement impliquent, cependant, de repenser la chaîne opératoire de l’archéologie, depuis la prescription de fouille jusqu’aux lieux de...

Trait-dependency of trophic interactions in zooplankton food webs

Florian Vincent, Andrea Bertolo, Gérard Lacroix, Maud Mouchet & Eric Edeline
Anthropogenic change in the abundance or identity of dominant top predators may induce reorganizations in whole food webs. Predicting these reorganizations requires identifying the biological rules that govern trophic niches. However, we still lack a detailed understanding of the respective contributions of body size, behaviour (e.g., match between predator hunting mode and prey antipredator strategy), phylogeny and/or ontogeny in determining both the presence and strength of trophic interactions. Here, we address this question by measuring...

Conservation genetics of Armeria belgenciencis

Alex Baumel, Frédéric Médail, Marianick Juin, Thibault Paquier, Marie Clares, Perrine Laffargue, Hélène Lutard, Lara Dixon & Mathias Pires
This the data set of the paper "Population genetic structure and management perspectives for Armeria belgenciencis, a narrow endemic plant from Provence (France)" published in Plant Ecology and Evolution: ###############. The genetic structure of Armeria belgenciensis and geographically close populations of Armeria arenaria was analyzed on the basis of 328 AFLP markers using model-based and model-free clustering methods. In addition, flowering phenology was estimated to address the possibility of pre-zygotic isolation between A. belgenciensis and...

Disentangling the roles of bottom-up and top-down drivers in the trade-off between food acquisition and safety in prey with multiple predators

Olivier Pays, Pierrick Blanchard, Simon Chamaillé-Jammes, Marion Valeix, Andrew Loveridge, David Macdonald, Stéphanie Périquet, Esther Van Der Meer, Patrick Duncan, Godfrey Mtare & Herve Fritz
1. Prey face a trade-off between acquiring food and avoiding predation, but food availability, and therefore its effect, is rarely measured in field studies investigating non-lethal effects of predation. The main aim of this study is to investigate the role of the presence of predators in the functional adjustments of feeding parameters with patch quality in a medium-size herbivore. 2. In Hwange National Park (Zimbabwe), we set up an experiment by manipulating, over two years,...

Data from: Cranial evolution in the extinct Rodrigues Island owl Otus murivorus (Strigidae), associated with unexpected ecological adaptations

Antoine Louchart, Anaïs Duhamel, Julian Hume, Pauline Guenser & Céline Salaviale
Island birds that were victim of anthropic extinctions were often more specialist species, having evolved their most distinctive features in isolation. Here we studied a fossil cranium of the ‘giant’ extinct scops owl Otus murivorus from Rodrigues Island (Mascarene Islands, southwestern Indian Ocean), to determine any potential unique characters. The fossil and extant strigids were imaged through x-ray microtomography, providing 3D views of external and internal (endocast, inner ear) cranial structures. Geometric morphometrics and analyses...

Positive and negative interactions jointly determine the structure of Müllerian mimetic communities

Thomas G. Aubier & Marianne Elias
Negative and positive ecological interactions have opposite effects on the structure of ecological communities, in particular in terms of ecological similarity among interacting species. In nature, species belonging to the same guild often interact in both negative and positive ways, yet the interplay between interactions of different kinds in intraguild community dynamics remains poorly understood. Müllerian mimetic communities are particularly suited for investigating this interplay because positive (mutualistic mimicry) and negative (competition for trophic resource...

Population collapse in viviparid gastropods of the Lake Victoria ecoregion started before the Last Glacial Maximum

Bert Van Bocxlaer, Catharina Clewing, Anne Duputié, Camille Roux & Christian Albrecht
For the purpose of reproducibility, we here provide the datasets and R script supporting the analyses of the paper “Population collapse in viviparid gastropods of the Lake Victoria ecoregion started before the Last Glacial Maximum” by Van Bocxlaer et al. This paper has been accepted for publication in Molecular Ecology on 31 July 2020. In this study, we examine the population structure of the clade of Bellamya gastropods that occupies the Lake Victoria ecoregion with...

Dataset - A complex network of additive and epistatic quantitative trait loci underlies natural variation of Arabidopsis thaliana quantitative disease resistance to Ralstonia solanacearum under heat stress

Fabrice Roux
Plant immunity is often negatively impacted by heat stress. However, the underlying molecular mechanisms remain poorly characterized. Based on a genome-wide association mapping approach, this study aims to identify in Arabidopsis thaliana the genetic bases of robust resistance mechanisms to the devastating pathogen Ralstonia solanacearum under heat stress. A local mapping population was phenotyped against the R. solanacearum GMI1000 strain at 27 and 30 °C. To obtain a precise description of the genetic architecture underlying...

Trait strengthening in mussels

Laurent Seuront, Katy Nicastro, Christopher McQuaid & Gerardo Zardi
Plastic pollution is ubiquitous with increasing recognition of its direct effects on species’ fitness. Little is known, however, about its more subtle effects, including the influence of plastic pollution on the morphological, functional and behavioural traits of organisms that are central to their ability to withstand disturbances. Among the least obvious but most pernicious forms of plastic-associated pollution are the chemicals that leach from microplastics. Here, we investigate how such leachates influence species’ traits by...

Charcoal analysis of kiln terraces to reconstruct practices and wood uses' temporalities for charcoal manufacturing activity : the case of the Bernadouze forest (Suc-et-Sentenac, Haut-Vicdessos)

Léonel Foudjeu Foumou, Mélanie Saulnier, Raquel Cunill Artigas, Sandrine Buscaino & Vanessa PY-SARAGAGLIA
This poster presents the results of the anthracological analysis of 7990 charcoals collected from 28 charcoal kilns located between 1300 and 1500 m ASL in the Bernadouze forest (french Pyrenees). This study aims to reconstruct the specific practices and temporalities of wood use in relation to charcoal making activity. It's based on the analysis of the most frequently occurring bioindicators preserved in charcoals from archaeological context.

IASI-FT Sea Surface Temperature (from IASI/Metop-B)

Ana Claudia Parracho & Sarah Safieddine
The IASI Sea Surface Temperature (SST) product is a monthly (level L3), 1×1 degree global dataset of skin temperatures over the sea derived from the IASI satellite radiances data. The dataset consists of monthly mean TXT files. Each file is a grid organized by latitude (-90 to 89 °N) and longitude (-180 to 180 °E). The land and sea ice grid points are filled using NaN. Size of the grid: 180 lines and 361 columns....

Le rapport d’analyse carpologique : exposé des minimums méthodologiques communs attendus par la communauté archéologique (carpologues, responsables d’opérations, services de l’État)

Bénédicte Pradat, Frédérique Durand, Françoise Toulemonde, Charlotte Hallavant, Aurélie Salavert, Julian Wiethold & Véronique Zech‐Matterne
La carpologie, initiée en France il y a 50 ans, s’est considérablement développée en grande partie grâce à l’augmentation des opérations d’archéologie préventive. La hausse sensible du nombre de carpologues, l’accroissement des études qui en résulte et la multiplication des cadres institutionnels, publics ou privés, dans lesquels les études carpologiques sont réalisées, ont rendu nécessaire une réflexion collective sur les minimums méthodologiques devant apparaître dans les rapports d’études carpologiques. En effet, la mise en œuvre...

Vertébrés : un projet d’atlas ostéologique dématérialisé

Samba Soussoko & Rose-Marie Arbogast
L’application Vertébrés est le fruit d’une collaboration entre le laboratoire CNRS Archimède UMR 7044, Archéologie Alsace et Laetoli Production. Elle est développée, entre autres, dans le cadre d’un projet Idex 2018 de l’Université de Strasbourg. Il s’agit d’un atlas d’ostéologie interactif permettant de manipuler, comparer et mesurer de véritables spécimens numérisés en 3D. Vertébrés s’adresse plus particulièrement à un public de chercheurs et d’étudiants mais également à un public plus large (enseignants, élèves, musées, amateurs…)....

Don’t judge a lizard by its colour: no evidence for differential socio-sexual behaviour and space use in the colour morphs of the European common wall lizard (Podarcis muralis)

Javier Abalos, Guillem Pérez I De Lanuza, Alicia Bartolomé, Océane Liehrmann, Hanna Laakkonen, Fabien Aubret, Tobias Uller, Pau Carazo & Enrique Font
Explaining the evolutionary origin and maintenance of colour polymorphisms is a major challenge in evolutionary biology. Such polymorphisms are commonly thought to reflect the existence of alternative behavioural or life-history strategies under negative frequency-dependent selection. The European common wall lizard Podarcis muralis exhibits a striking ventral colour polymorphism that has been intensely studied and is often assumed to reflect alternative reproductive strategies, similar to the iconic “rock-paper-scissors” system described in the North American lizard Uta...

Unidirectional response to bidirectional selection on body size. I. Phenotypic, life history and endocrine response

Clémentine Renneville, Alexis Millot, Simon Agostini, David Carmignac, Gersende Maugars, Sylvie Dufour, Arnaud Le Rouzic & Eric Edeline
Anthropogenic perturbations such as harvesting often select against a large body size and are predicted to induce rapid evolution towards smaller body sizes and earlier maturation. However, body-size evolvability and, hence, adaptability to anthropogenic perturbations remain seldom evaluated in wild populations. Here, we use a laboratory experiment over 6 generations to measure the ability of wild-caught medaka fish (Oryzias latipes) to evolve in response to bidirectional size-dependent selection mimicking opposite harvest regimes. Specifically, we imposed...

La Bioarchéologie en France : état des lieux, enjeux et perspectives

Rose-Marie Arbogast & Margareta Tengberg
La bioarchéologie est l’étude des vestiges biologiques recueillis dans le cadre de fouilles archéologiques tels que les restes végétaux et animaux, mais aussi leurs composants physico-chimiques, génétiques et les traces de substances organiques (lait, graisses, cires…). Elle regroupe un très large éventail d’approches et de disciplines : archéozoologie, archéobotanique, analyses chimiques, isotopiques ou moléculaires, menées à des échelles très diverses et envisagées de façon croisée. Son évolution récente est marquée par un important renouvellement tant...

Aux dimensions de l’image dans l’étude des représentations gravées néolithiques

Serge Cassen & Valentin Grimaud
En voulant témoigner des gravures qu’ils apercevaient sur les rochers, les stèles et les parois des tombeaux néolithiques de l’Europe occidentale, les premiers archéologues en recherche d’une représentation tentent de restituer la morphologie des supports par le jeu de la lumière sur le relief de la pierre. Mais par une volonté compréhensible de clarifier les tracés en éliminant le détail naturel, la troisième dimension va progressivement se perdre jusqu’à atteindre, dans la seconde moitié du...

Nouveau protocole de prélèvement et de préparation des macro‐charbons pour une généralisation des études anthraco‐chronologiques

Benoit Brossier, Philippe Poirier, Christophe Vaschalde, Isabel Figueiral , Lucie Chabal & Marylise Marmara
Les développements méthodologiques en anthracologie permettent actuellement d’obtenir des spectres de fréquences de taxons représentatifs des environnements passés, moyennant des conditions précises d’échantillonnage et de tamisage. Pourtant, d’autres informations sont disponibles dans les charbons de bois, en particulier ceux de taille pluricentimétrique. Depuis le début des années 2000, plusieurs recherches se fondent sur les informations de morphologie des cernes (courbure, largeur, etc.) des charbons de bois retrouvés en contexte archéologique, afin de répondre à des...

Archéobios : Archives biologiques et biomatériaux en contexte archéologique

Isabelle Rodet-Belarbi, Lionel Gourichon & Isabelle Théry-Parisot
L’école thématique Archéobios (I. Théry-Parisot et L. Gourichon, CEPAM-UMR 7264) a été conçue comme un trait d’union entre les archéologues et les spécialistes, souvent absents sur le terrain. Les restes biologiques sont des archives archéologiques au fort potentiel informatif dont les traces sont parfois ténues et fragiles. Leur étude répond à des exigences d’échantillonnage, de prélèvement, de conservation spécifiques à chaque matériau, et à des problématiques précises. Si les gestes lors des fouilles sont une...

Data from: Extending full protection inside existing marine protected areas or reducing fishing effort outside can reconcile conservation and fisheries goals

Mokrane Belharet, Antonio Di Franco, Antonio Calò, Lorenzo Mari, Joachim Claudet, Renato Casagrandi, Marino Gatto, Josep Lloret, Charlotte Sève, Paolo Guidetti & Paco Melià
1. Most fish stocks worldwide are fished at maximum sustainable yield (MSY) or overfished, as many fisheries management strategies have failed to achieve sustainable fishing. Identifying effective fisheries management strategies has now become urgent. 2. Here, we developed a spatially-explicit metapopulation model accounting for population connectivity in the north-western Mediterranean Sea, and parameterized it for three ecologically and economically important coastal fish species: the white seabream Diplodus sargus, the two-banded seabream Diplodus vulgaris and the...

Rapid and repeated divergence of animal chemical signals in an island introduction experiment

Colin Donihue, Anthony Herrel, José Martín, Johannes Foufopoulos, Panayiotis Pafilis & Simon Baeckens
Studies of animal communication have documented myriad rapid, context-dependent changes in visual and acoustic signal design. In contrast, relatively little is known about the capacity of vertebrate chemical signals to rapidly respond, either plastically or deterministically, to changes in context. Four years following an experimental introduction of lizards to replicate experimental islets, we aimed to determine if chemical signal design of the experimental populations differed from that of the source population. In 2014, we translocated...

Disentangling the assembly mechanisms of ant cuticular bacterial communities of two Amazonian ant species sharing a common arboreal nest

Caroline Birer, Corrie S. Moreau, Niklas Tysklind, Lucie Zinger & Christophe Duplais
Bacteria living on the cuticle of ants are generally studied for their protective role against pathogens, especially in the clade of fungus-growing ants. However, little is known of the diversity of cuticular bacteria in other ant host species, as well as of the mechanisms leading to the composition of these communities. Here, we used 16S rRNA gene amplicon sequencing to study the influence of host species, species interactions, and the pool of bacteria from the...

Registration Year

  • 2020

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  • Dataset
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  • French National Centre for Scientific Research
  • Sorbonne University
  • Versailles Saint-Quentin-en-Yvelines University
  • Atmospheres Laboratory Environments, Observations Spatiales
  • Institut National de Recherches Archéologiques Préventives
  • National Museum of Natural History
  • Institut National de la Recherche Agronomique
  • National Research Institute for Agriculture, Food and Environment
  • University of Antwerp
  • Ghent University