10 results match your criteria: "CNRS-Université de Montpellier-Université Paul-Valéry Montpellier-EPHE-1919 Route de Mende[Affiliation]"
Biol Lett
March 2022
Aix Marseille Univ, CNRS, ISM, Marseille, France.
To investigate altitude control in honeybees, an optical configuration was designed to manipulate or cancel the optic flow. It has been widely accepted that honeybees rely on the optic flow generated by the ground to control their altitude. Here, we create an optical configuration enabling a better understanding of the mechanism of altitude control in honeybees.
View Article and Find Full Text PDFJ R Soc Interface
October 2019
Department of Biology, CAnMove, Lund University, Ecology Building, 223 62 Lund, Sweden.
For studies of how birds control their altitude, seabirds are of particular interest because they forage offshore where the visual environment can be simply modelled by a flat world textured by waves then generating only ventral visual cues. This study suggests that optic flow, i.e.
View Article and Find Full Text PDFEvol Lett
April 2019
Inserm, Univ. of Lille, CNRS, CHU Lille, Institut Pasteur de Lille, U1019-UMR8204-CIIL-Center for Infection and Immunity of Lille F-59000 Lille France.
The ability of the agent of plague, , to form a biofilm blocking the gut of the flea has been considered to be a key evolutionary step in maintaining flea-borne transmission. However, blockage decreases dramatically the life expectancy of fleas, challenging the adaptive nature of blockage. Here, we develop an epidemiological model of plague that accounts for its different transmission routes, as well as the within-host competition taking place between bacteria within the flea vector.
View Article and Find Full Text PDFAnim Cogn
January 2019
CEFE UMR 5175, CNRS-Université de Montpellier-Université Paul-Valéry Montpellier-EPHE-1919 Route de Mende, 34293, Montpellier Cedex 5, France.
Raptors are usually considered to be mainly visually dependent, and the use of other sensory modalities has rarely been studied in these birds. Here, we investigated experimentally which senses (vision and/or olfaction) Turkey vultures (Cathartes aura) and Southern caracaras (Caracara plancus) use to find hidden food. First, two identical stainless-steel perforated balls, one containing a putrefied piece of meat and the other an odorless control, were presented to birds in binary choice experiments.
View Article and Find Full Text PDFEvol Lett
August 2017
Institut des Sciences de l'Evolution de Montpellier (UMR 5554, CNRS-Université de Montpellier-IRD-EPHE) Campus Université de Montpellier Place Eugène Bataillon 34095 Montpellier CEDEX 05 France.
Gene duplications are widespread in genomes, but their role in contemporary adaptation is not fully understood. Although mostly deleterious, homogeneous duplications that associate identical repeats of a locus often increase the quantity of protein produced, which can be selected in certain environments. However, another type exists: heterogeneous gene duplications, which permanently associate two (or more) alleles of a single locus on the same chromosome.
View Article and Find Full Text PDFTrends Microbiol
October 2017
CEFE UMR 5175, CNRS - Université de Montpellier and Université Paul-Valéry Montpellier - EPHE - 1919 route de Mende, 34293 Montpellier, France.
The life cycle of the black truffle (Tuber melanosporum) includes a mating before sporulation: although the species is hermaphroditic, mating turns out to involve parents with very different features, that mostly behave as male or female only, suggesting that this species undergoes forced dioecism.
View Article and Find Full Text PDFEcol Lett
March 2016
Univ. Grenoble Alpes, LECA, F-38000, Grenoble, France.
Whether the success of alien species can be explained by their functional or phylogenetic characteristics remains unresolved because of data limitations, scale issues and weak quantifications of success. Using permanent grasslands across France (50 000 vegetation plots, 2000 species, 130 aliens) and building on the Rabinowitz's classification to quantify spread, we showed that phylogenetic and functional similarities to natives were the most important correlates of invasion success compared to intrinsic functional characteristics and introduction history. Results contrasted between spatial scales and components of invasion success.
View Article and Find Full Text PDFTrends Plant Sci
October 2015
CEFE UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE -1919 route de Mende, F-34293 Montpellier, CEDEX 5, France.
Faced with an accelerating rate of environmental change and the associated need for a more sustainable, low-input agriculture, the urgent new challenge for crop science is to find ways to introduce greater diversity to cropping systems. However, there is a dearth of generic formalism in programs seeking to diversify crops. In this opinion, we propose a new framework, derived from ecological theory, that should enable diversity targets to be incorporated into plant-breeding programs.
View Article and Find Full Text PDFEcol Evol
February 2015
Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University Ny Munkegade 114, Aarhus C, DK-8000, Denmark.
Macro-scale species richness studies often use museum specimens as their main source of information. However, such datasets are often strongly biased due to variation in sampling effort in space and time. These biases may strongly affect diversity estimates and may, thereby, obstruct solid inference on the underlying diversity drivers, as well as mislead conservation prioritization.
View Article and Find Full Text PDFEnviron Microbiol
August 2015
UMR 5175, CEFE, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE - 1919 route de Mende, Montpellier, 34293, France.
In the Mediterranean region, patches of vegetation recovering from disturbance and transiently dominated by shrubs produce one of the world's most prized fungi, the black truffle (Tuber melanosporum). In these successional plant communities, we have fragmentary knowledge of the distribution of T. melanosporum in space among ectomycorrhizal (ECM) host species and in time.
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