Stéphane Dray

Latest

• Determinants of genetic diversity and species richness of North American amphibians
• An appraisal of graph embeddings for comparing trophic network architectures
• Editorial: Advances in Statistical Ecology: New Methods and Software
• Genetic and species‐level biodiversity patterns are linked by demography and ecological opportunity
• Overcoming the Spurious Groups Problem in Between-Group PCA
• Long‐term high densities of African elephants clear the understorey and promote a new stable savanna woodland community
• Are human natal sex ratio differences across the world adaptive? A test of Fisher's principle
• Images, écologie et deep learning
• Can an herbivore affect where a top predator kills its prey by modifying woody vegetation structure?
• Flower phenology as a disruptor of the fruiting dynamics in temperate oak species
• Heterogeneity of water physico-chemical characteristics in artificially pumped waterholes: do African herbivores drink at the same locations and does it lead to interference competition?
• Investigating microbial associations from sequencing survey data with co-correspondence analysis
• How to deal with missing and confounding variables in multivariate analysis?
• Portail web pour soumettre, formater et partager des jeux de données dans R
• Analyse des structures spatiales multivariées en écologie des communautés avec le package adespatial
• Diversity indices for ecological networks: a unifying framework using Hill numbers
• Moran eigenvector filters for the analysis of ecological data : are they really multiscale?
• Nine quick tips for analyzing network data
• Phenotypic plasticity in the invasive pest Drosophila suzukii: Activity rhythms and gene expression in response to temperature
• Spatial analyses of multi‐trophic terrestrial vertebrate assemblages in Europe
• Testing the Mantel statistic with a spatially-constrained permutation procedure
• Algorithms and biplots for double constrained correspondence analysis
• Beyond neutrality: disentangling the effects of species sorting and spurious correlations in community analysis
• Disentangling good from bad practices in the selection of spatial or phylogenetic eigenvectors
• Integrating spatial and phylogenetic information in the fourth-corner analysis to test trait-environment relationships
• Multivariate Analysis of Ecological Data with ade4
• Optimizing the choice of a spatial weighting matrix in eigenvector-based methods
• Simple parametric tests for trait–environment association
• Supervised Multiblock Analysis in R with the ade4 Package
• Couplage des données de biodiversité : prise en compte de l’originalité des structures de données
• A critical issue in model-based inference for studying trait-based community assembly and a solution
• adegraphics: an S4 lattice-based package for the representation of multivariate data
• Analyse spatiale multi-échelles de données écologiques avec adespatial
• Environment, traits, space and phylogeny: integrating constraints in the analysis of ecological data tables
• Factors shaping community assemblages and species occurrence of different trophic levels
• Linking trait variation to the environment: Critical issues with community-weighted mean correlation resolved by the fourth-corner approach
• The global spectrum of plant form and function
• Addressing ecological effects of radiation on populations and ecosystems to improve protection of the environment against radiation: Agreed statements from a Consensus Symposium.
• Environnement, traits, espace et phylogénie : intégrer des contraintes dans l’analyse d’un tableau écologique
• Interspecific interference competition at the resource patch scale: do large herbivores spatially avoid elephants while accessing water?
• Molecular phylogeny of the highly diversified catfish subfamily Loricariinae (Siluriformes, Loricariidae) reveals incongruences with morphological classification
• Spatial distribution of a large herbivore community at waterholes: An assessment of its stability over years in Hwange National Park, Zimbabwe
• The adephylo package
• An integrated web server and R package for data sharing and reproducible research in ecology
• Considering external information to improve the phylogenetic comparison of microbial communities: a new approach based on constrained Double Principal Coordinates Analysis (cDPCoA)
• Generating spatially constrained null models for irregularly spaced data using Moran spectral randomization methods
• Principal component analysis with missing values: a comparative survey of methods
• Statistical ecology comes of age
• An integrated web server and R package for data sharing and reproducible research in ecology
• Analysing a pair of tables: coinertia analysis and duality diagrams
• Combining the fourth-corner and the RLQ methods for assessing trait responses to environmental variation
• Functional analysis of Normalized Difference Vegetation Index curves reveals overwinter mule deer survival is driven by both spring and autumn phenology
• Spatially constrained clustering of ecological networks
• A guide for using functional diversity indices to reveal changes in assembly processes along ecological gradients
• adegraphics : un package pour la représentation et l'analyse de données multivariées
• Conference Report: Deuxièmes Rencontres R
• De la biologie à l'algèbre linéaire ... en passant par R. Expérimenter la notion de projection
• Development of multi-block regression analysis to process veterinary epidemiological data. From statistical needs of epidemiologists to development of R package
• Does local habitat fragmentation affect large-scale distributions? The case of a specialist grassland bird
• Développement de méthodes de régression multibloc pour le traitement des données d’épidémiologie vétérinaire. Des besoins statistiques des épidémiologistes au développement d’un package R
• Functional traits reveal processes driving natural afforestation at large spatial scales.
• Méthodes de couplage de deux K-tableaux et collections de graphiques
• Reciprocal modulation of internal and external factors determines individual movements.
• Un site web d'enseignement R automatisé et à gestion partagée
• ade4: statistical methods and graphical functions for the analysis of multivariate data
• ade4: statistical methods and graphical functions for the analysis of multivariate data
• Assessing species and community functional responses to environmental gradients: which multivariate methods?
• Analyse de (K+1) tableaux avec le logiciel ade4. Application en épidémiologie
• Assessing the effects of spatial contingency and environmental filtering on metacommunity phylogenetics
• Community ecology in the age of multivariate multiscale spatial analysis
• Disentangling plant trait responses to livestock grazing from spatio-temporal variation: the partial RLQ approach
• How to measure and test phylogenetic signal
• Improved testing of species traits-environment relationships in the fourth corner problem
• Predator-prey spatial game as a tool to understand the effects of protected areas on harvester-wildlife interactions
• The Harttiini (Siluriformes, Loricariidae) from the Guianas: a multi-table approach to assess their diversity, evolution, and distribution
• Visualisation de données multivariées: réimplémentation des fonctionnalités graphiques de la librairie ade4
• Linking traits to environmental variation
• A new perspective about Moran's coefficient: spatial autocorrelation as a linear regression problem
• Analyzing spatial multivariate structures
• How can ecological status be summarized for an operational Pressures/States model ?
• Multivariate analysis of ecological data with ade4
• Relationships between species feeding traits and environmental conditions in fish communities: a three-matrix approach
• Revisiting Guerry's data: introducing spatial constraints in multivariate analysis
• Développements méthodologiques autour de l'analyse de données écologiques
• Une approche multivariée pour la recherche de structures phylogénétiques dans les données biologiques
• (Some elements of) Spatial ecological data analysis
• adephylo: new tools for investigating the phylogenetic signal in biological traits
• Analyses multivariées et mesures d'autocorrélation spatiale pour l'analyse des assemblages d'espèces
• Corrigendum to \"Assessing phylogenetic dependence of morphological traits using co-inertia prior to investigate character evolution in Loricariinae catfishes\" Mol. Phylogenet. Evol. 46 (2008) 986-1002 (DOI:10.1016/j.ympev.2007.12.015)
• Make love not war: when should less competitive males choose low-quality but defendable females?
• Some methodological developments around the spatial weighting matrix in ecology
• The exploratory analysis of autocorrelation in animal-movement studies
• Extracting phylogenetic signal in morphometric data to complete molecular phylogenies: a case study on Harttiini (Siluriformes, Loricariidae) from the Guianas
• Finding essential scales of spatial variation in ecological data: a multivariate approach
• Les Harttiini (Siluriformes, Loricariidae) des Guyanes : phylogénie et évolution des formes ou variation sur un même thème.
• Phylogeny and evolution of shapes: a new approach to predict phylogenetic positions of missing taxa
• Responding to spatial and temporal variations in predation risk: space use of a game species in a changing landscape of fear
• The concept of animals trajectories from a data analysis perspective
• Analyzing or explaining beta diversity? Comment.
• Assessing phylogenetic dependence of morphological traits using co-inertia prior to investigate character evolution in Loricariinae catfishes
• On the number of principal components: A test of dimensionality based on measurements of similarity between matrices
• Spatial ordination of vegetation data using a generalization of Wartenberg's multivariate spatial correlation
• Testing the species traits-environment relationships: the fourth-corner problem revisited
• Unexpected male choosiness for mates in a spider
• \"Reserve effect\" on the space use of game mammals: the case of wild boar
• Interactive multivariate data analysis in R with the ade4 and ade4TkGUI packages
• Multi-scale assessment of the functional relationships between species traits and environmental conditions for littoral fish communities
• Multi-scale assessment of the functional relationships between species traits and environmental conditions for littoral fish communities
• Testing sexual segregation and aggregation: old ways are best
• The ade4 package - II: Two-table and K-table methods
• The ade4 package: implementing the duality diagram for ecologists
• Analyse morphologique et phylogénétique de la sous famille des Loricariinae (Siluriformes, Loricariidae)
• Impact of hunting activities on the spatial behaviour of the wild boar: attractiveness of safe areas
• Morphological and phylogenetic study of the subfamily Loricariinae (Siluriformes, Loricariidae)
• Resource partitioning in a grazer guild feeding on a multilayer diatom mat
• Spatial modeling: a comprehensive framework for principal coordinate analysis of neighbor matrices (PCNM)
• Variation partitioning of species data matrices: estimation and comparison of fractions
• Taking into account spatial dependence in multivariate analysis: a generalization of Wartenberg's multivariate spatial correlation
• Coupling principal component analysis and GIS to map deer habitats
• Spatial modeling: a comprehensive framework for distance-based eigenvector maps (DBEM)
• Variation partitioning of species data matrices: estimation and comparison of fractions
• Nouvelles méthodes d'analyse spatiale multivariée de données incomplètes
• Two solutions to the fourth corner problem
• Analyse spatialisée de données écologiques multivariées
• Broad-scale biodiversity pattern of the endemic tree flora of the Western Ghats (India) using canonical correlation analysis of herbarium records
• Cartographie et analyse de données multivariées
• Co-inertia analysis and the linking of ecological data tables
• Consistency between ordination techniques and diversity measurements: two alternative strategies for species occurrence data
• Couplage de données issues de deux plans d'échantillonnage distincts d'un même espace
• Eléments d'interface entre analyses multivariées, systèmes d'information géographique et observations écologiques
• Multivariate analysis of incomplete mapped data
• Procrustean co-inertia analysis for the linking of multivariate data sets
• Spatial variation in springtime food resources influences the winter body mass of roe deer fawn
• Matching data sets from two different spatial samples
• Modelling bovine trypanosomosis spatial distribution by GIS in an agro-pastoral zone of Burkina Faso
• The distribution of preferred plant species in spring determines spatial variation in the body mass of roe deer fawns in winter
• Within-plot relationships between tree species occurrences and hydrological soil constraints: an example in French Guiana investigated through canonical correlation analysis
• Systèmes d'information géographique : une application à la modélisation d'une maladie à transmission vectorielle au Burkina Faso
• Modelling bovine trypanosomosis spatial distribution by GIS in an agro-pastoral zone of Burkina Faso
• L'ordination des listes d'occurrences : quand l'analyse canonique des correspondances est une analyse canonique
• Utilisation des listes d'occurrences spécifiques spatialisées en écologie et biogéographie