121 Works

Data from: On the equivalence of host local adaptation and parasite maladaptation: an experimental test

Mélissa Lemoine, Blandine Doligez & Heinz Richner
In spatio-temporally varying environments, host-parasite coevolution may lead to either host or parasite local adaptation. Using reciprocal infestations over 11 pairs of plots, we tested local adaptation in the hen flea and its main host, the great tit. Flea reproductive success (number of adult at host fledging) was lower on host individuals from the same plot compared to foreign hosts (from another plot), revealing flea local maladaptation. Host reproductive success (number of fledged young) was...

Data from: Standard sister clade comparison fails when testing derived character states

Jos Käfer & Sylvain Mousset
Comparing species richness in sister clades that differ in a character is one of the ways to study factors influencing diversification. While most of its applications focused on traits that increase diversification, some were used to study the association of a trait with less species richness, e.g. the occurrence of dioecy in flowering plants. We show here, using simulations and an analytical model, that the null expectation of equal species richness that is generally used...

Data from: Under pressure? Dental adaptations to termitophagy and vermivory among mammals

Cyril Charles, Floréal Solé, Helder Gomes Rodrigues & Laurent Viriot
The extant mammals have evolved highly diversified diets associated with many specialized morphologies. Two rare diets, termitophagy and vermivory, are characterized by unusual morphological and dental adaptations that have evolved independently in several clades. Termitophagy is known to be associated with increases in tooth number, crown simplification, enamel loss, and the appearance of intermolar diastemata. We observed similar modifications at the species level in vermivorous clades, though interestingly the vermivorous mammals lack secondarily derived tools...

Data from: Within- and among-population impact of genetic erosion on adult fitness-related traits in the European tree frog Hyla arborea

Emilien Luquet, Jean Paul Léna, Patrice David, Jérôme Prunier, Pierre Joly, Thierry Lengagne, Nicolas Perrin & Sandrine Plénet
Assessing in wild populations how fitness is impacted by inbreeding and genetic drift is a major goal for conservation biology. An approach to measure the detrimental effects of inbreeding on fitness is to estimate correlations between molecular variation and phenotypic performances within and among populations. Our study investigated the effect of individual multilocus heterozygosity on body size, body condition and reproductive investment of males (that is, chorus attendance) and females (that is, clutch mass and...

Data from: Phenotypic and genotypic convergences are influenced by historical contingency and environment in yeast

Aymé Spor, Daniel J. Kvitek, Thibault Nidelet, Juliette Martin, Judith Legrand, Christine Dillmann, Aurélie Bourgais, Dominique De Vienne, Gavin Sherlock & Delphine Sicard
Different organisms have independently and recurrently evolved similar phenotypic traits at different points throughout history. This phenotypic convergence may be caused by genotypic convergence and in addition, constrained by historical contingency. To investigate how convergence may be driven by selection in a particular environment and constrained by history, we analyzed nine life-history traits and four metabolic traits during an experimental evolution of six yeast strains in four different environments. In each of the environments, the...

Data from: Efficient exploration of the space of reconciled gene trees

Gergely J. Szöllősi, Wojciech Rosikiewicz, Bastien Boussau, Eric Tannier & Vincent Daubin
Gene trees record the combination of gene-level events, such as duplication, transfer and loss, and species-level events, such as speciation and extinction. Gene tree-species tree reconciliation methods model these processes by drawing gene trees into the species tree using a series of gene and species level events. The reconstruction of gene trees based on sequence alone almost always involves choosing between statistically equivalent or weakly distinguishable relationships that could be much better resolved based on...

Data from: The molecular signal for the adaptation to cold temperature during early life on Earth

Mathieu Groussin, Bastien Boussau, Sandrine Charles, Samuel Blanquart & Manolo Gouy
Several lines of evidence such as the basal location of thermophilic lineages in large-scale phylogenetic trees and the ancestral sequence reconstruction of single enzymes or large protein concatenations support the conclusion that the ancestors of the bacterial and archaeal domains were thermophilic organisms which were adapted to hot environments during the early stages of the Earth. A parsimonious reasoning would therefore suggest that the last universal common ancestor (LUCA) was also thermophilic. Various authors have...

Data from: Introduced Drosophila subobscura populations perform better than native populations during an oviposition choice task due to increased fecundity but similar learning ability

Julien Foucaud, Céline Moreno, Marta Pascual, Enrico L. Rezende, Luis E. Castañeda, Patricia Gibert & Frederic Mery
The success of invasive species is tightly linked to their fitness in a putatively novel environment. While quantitative components of fitness have been studied extensively in the context of invasive species, fewer studies have looked at qualitative components of fitness, such as behavioral plasticity, and their interaction with quantitative components, despite intuitive benefits over the course of an invasion. In particular, learning is a form of behavioral plasticity that makes it possible to finely tune...

Data from: Assessment of a 16S rRNA amplicon Illumina sequencing procedure for studying the microbiome of a symbiont-rich aphid genus

Emmanuelle Jousselin, Anne-Laure Clamens, Maxime Galan, Maria Bernard, Sarah Maman, Bernhard Gschloessl, Marie-Gabrielle Duport, Andrea S. Meseguer, Federica Calevro, Armelle Coeur D'acier, G. Duport & A.-L. Clamens
The bacterial communities inhabiting arthropods are generally dominated by a few endosymbionts that play an important role in the ecology of their hosts. Rather than comparing bacterial species richness across samples, ecological studies on arthropod endosymbionts often seek to identify the main bacterial strains associated with each specimen studied. The filtering out of contaminants from the results and the accurate taxonomic assignment of sequences are therefore crucial in arthropod microbiome studies. We aimed here to...

Data from: Cohort variation in individual body mass dissipates with age in large herbivores

Sandra Hamel, Jean-Michel Gaillard, Nigel G. Yoccoz, Steve Albon, Steeve D. Côté, Joseph M. Craine, Marco Festa-Bianchet, Mathieu Garel, Phyllis Lee, Cynthia Moss, Daniel H. Nussey, Fanie Pelletier, Audun Stien & Torkild Tveraa
Environmental conditions experienced during early growth and development markedly shape phenotypic traits. Consequently, individuals of the same cohort may show similar life-history tactics throughout life. Conditions experienced later in life, however, could fine-tune these initial differences, either increasing (cumulative effect) or decreasing (compensatory effect) the magnitude of cohort variation with increasing age. Our novel comparative analysis that quantifies cohort variation in individual body size trajectories shows that initial cohort variation dissipates throughout life, and that...

Data from: An R package for analyzing survival using continuous-time open capture-recapture models

David Fouchet, Hugues Santin-Janin, Frank Sauvage, Nigel Gilles Yoccoz & Dominique Pontier
Capture–recapture software packages have proven to be very powerful tools for analysing factors affecting survival in wild populations. However, all such packages are limited to discrete-time protocols. Appropriate survival analysis tools are still lacking for data acquired from continuous-time protocols. We have developed a statistical method and propose an r package for analysing such data based on an extension of classical survival analysis models incorporating an inhomogeneous Poisson process for modelling capture histories. First, data...

Data from: Do cryptic species matter in macroecology? Sequencing European groundwater crustaceans yields smaller ranges but does not challenge biodiversity determinants

David Eme, Maja Zagmajster, Teo Delić, Cene Fiser, Jean-François Flot, Lara Konecny-Dupré, Snaebjorn Palsson, Fabio Stoch, Valerija Zakšek, Christophe J. Douady & Florian Malard
Ecologists increasingly rely on molecular delimitation methods (MMs) to identify species boundaries, thereby potentially increasing the number of putative species because of the presence of morphologically cryptic species. It has been argued that cryptic species could challenge our understanding of what determine large-scale biodiversity patterns which have traditionally been documented from morphology alone. Here, we used morphology and three MMs to derive four different sets of putative species among the European groundwater crustaceans. Then, we...

Data from: Invasive Drosophila suzukii facilitates Drosophila melanogaster infestation and sour rot outbreaks in the vineyards

Antoine Rombaut, Robin Guilhot, Anne Xuereb, Laure Benoit, Marie Pierre Chapuis, Patricia Gibert & Simon Fellous
How do invasive pests affect interactions between members of pre-existing agrosystems? The invasive pest Drosophila suzukii is suspected to be involved in the aetiology of sour rot, a grapevine disease that otherwise develops following Drosophila melanogaster infestation of wounded berries. We combined field observations with laboratory assays to disentangle the relative roles of both Drosophila in disease development. We observed the emergence of numerous D. suzukii, but no D. melanogaster flies, from bunches that started...

Data from: RAD sequencing and genomic simulations resolve hybrid origins within North American Canis

Linda Y. Rutledge, S. Devillard, J. Q. Boone, P. A. Hohenlohe & B. N. White
Top predators are disappearing worldwide, significantly changing ecosystems that depend on top-down regulation. Conflict with humans remains the primary roadblock for large carnivore conservation, but for the eastern wolf (Canis lycaon), disagreement over its evolutionary origins presents a significant barrier to conservation in Canada and has impeded protection for grey wolves (Canis lupus) in the USA. Here, we use 127 235 single-nucleotide polymorphisms (SNPs) identified from restriction-site associated DNA sequencing (RAD-seq) of wolves and coyotes,...

Data from: Development of a PCR-RFLP assay to identify Drosophila melanogaster among field-collected larvae

Vincent Raquin, Hélène Henri, Marine Vallat, François Leulier, Patricia Gibert & Natacha Kremer
The fruit fly Drosophila melanogaster is a model organism to study several aspects of metazoan biology. Most of the work has been conducted in adult fruit flies, including laboratory and field-derived specimens, but Drosophila melanogaster larvae recently became a valuable model to better understand animal physiology, development or host-microbe interactions. While adult flies can be easily assigned to a given Drosophila species based on morphological characteristics, such visual identification is more intricate at the larval...

Data from: Integrating population genetics to define conservation units from the core to the edge of Rhinolophus ferrumequinum western range

Orianne Tournayre, Jean-Baptiste Pons, Maxime Leuchtmann, Raphael Leblois, Sylvain Piry, Anne Loiseau, Ondine Filippi-Codaccioni, Jeanne Duhayer, Inazio Garin, Fiona Mathews, Sébastien Puechmaille, Nathalie Charbonnel & Dominique Pontier
The greater horseshoe bat (Rhinolophus ferrumequinum) is among the most widespread bat species in Europe but it has experienced severe declines, especially in Northern Europe. This species is listed Near Threatened in the European IUCN Red List of Threatened Animals and it is considered to be highly sensitive to human activities and particularly to habitat fragmentation. Therefore, understanding the population boundaries and demographic history of populations of this species is of primary importance to assess...

Adaptive changes in color vision from long-term filter usage in anomalous but not normal trichromacy

John S. Werner, Brennan Marsh-Armstrong & Kenneth Knoblauch
For over 150 years, spectrally selective filters have been proposed to improve the vision of observers with color vision deficiencies. About 6% of males and <1% of females have anomalies in their gene arrays coded on the X chromosome that result in significantly decreased spectral separation between their middle- (M-) and long- (L-) wave sensitive cone photoreceptors. These shifts alter individuals’ color-matching and chromatic discrimination such that they are classified as anomalous trichromats. Broad-band spectrally...

Data from: An intermediate type of medusa from the early Cambrian Kuanchuanpu Formation, South China

Xing Wang, Jean Vannier, Xiaoguang Yang, Shin Kubota, Qiang Ou, Xiaoyong Yao, Kentaro Uesugi, Osamu Sasaki, Tsuyoshi Komiya & Jian Han
The tetraradial or pentaradial fossil embryos and related hatched individuals from the early Cambrian Kuanchuanpu Formation are of great interest for understanding the early evolution of medusozoans. The phylogenetic and evolutionary significance of their external and internal characters (e.g. manubrium, tentacles, septa and claustra) is still controversial. Here we describe a new pentamerous medusozoan, Hanagyroia orientalis gen. et sp. nov., characterized by five well-developed perradial oral lips around a remarkably large manubrium, a conspicuous equatorial...

Assessing the effects of artificial light at night on biodiversity across latitude – Current knowledge gaps

Jean Secondi, Aurélie Davranche, Marc Théry, Nathalie Mondy & Thierry Lengagne
Aim: Exposure to artificial light at night (ALAN) is a risk factor for organisms. Considering the spread and increasing intensity of night brightness across the globe, and the key role of light at all biological levels, alterations of ecosystems are expected. Yet, we cannot predict the severity of the effects of ALAN in several biomes because little information is available outside the temperate zone. We reviewed current knowledge and identified traits that could be targeted...

Natal dispersal does not entail survival costs but is linked to breeding dispersal in a migratory shorebird, the southern dunlin Calidris alpina schinzii

Veli-Matti Pakanen, Veli-Matti Pakanen, Kari Koivula, Blandine Doligez, Lars-Åke Flodin, Angela Pauliny, Nelli Rönkä & Donald Blomqvist
The costs and benefits of dispersal are often assessed by comparing fitness between dispersing and non-dispersing individuals. Importantly, individuals that disperse between their natal and first breeding site may subsequently be more likely to disperse between breeding sites compared to those that remained philopatric to their natal site. Such within-individual consistency in dispersal behaviour can bias local survival estimation, and thus the survival comparison between dispersing and non-dispersing individuals, if breeding dispersal leads to permanent...

Pharmacokinetics, efficacy and tolerance of cefoxitin in the treatment of cefoxitin-susceptible extended-spectrum beta-lactamase producing Enterobacterales infections in critically ill patients: a retrospective single-center study

Paul Chabert, Judith Provoost, Sabine Cohen, Céline Dupieux-Chabert, Laurent Bitker, Tristan Ferry, Sylvain Goutelle & Jean-Christophe Richard
Abstract Background Cefoxitin is active against some extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-PE), but has not been evaluated so far in the intensive care unit (ICU) settings. Data upon its pharmacokinetics (PK), tolerance and efficacy in critical conditions are scanty. We performed a retrospective single-center study in a university hospital medical ICU, in subjects presenting with cefoxitin-susceptible ESBL-PE infection and treated with cefoxitin. The primary aim was to determine cefoxitin PK. Secondary endpoints were efficacy, tolerance, and...

Additional file 2 of Pharmacokinetics, efficacy and tolerance of cefoxitin in the treatment of cefoxitin-susceptible extended-spectrum beta-lactamase producing Enterobacterales infections in critically ill patients: a retrospective single-center study

Paul Chabert, Judith Provoost, Sabine Cohen, Céline Dupieux-Chabert, Laurent Bitker, Tristan Ferry, Sylvain Goutelle & Jean-Christophe Richard
Additional file 2: Table S2. Population PK parameters of cefoxitin.

Additional file 2 of Pharmacokinetics, efficacy and tolerance of cefoxitin in the treatment of cefoxitin-susceptible extended-spectrum beta-lactamase producing Enterobacterales infections in critically ill patients: a retrospective single-center study

Paul Chabert, Judith Provoost, Sabine Cohen, Céline Dupieux-Chabert, Laurent Bitker, Tristan Ferry, Sylvain Goutelle & Jean-Christophe Richard
Additional file 2: Table S2. Population PK parameters of cefoxitin.

Additional file 3 of Pharmacokinetics, efficacy and tolerance of cefoxitin in the treatment of cefoxitin-susceptible extended-spectrum beta-lactamase producing Enterobacterales infections in critically ill patients: a retrospective single-center study

Paul Chabert, Judith Provoost, Sabine Cohen, Céline Dupieux-Chabert, Laurent Bitker, Tristan Ferry, Sylvain Goutelle & Jean-Christophe Richard
Additional file 3: Figure S1. Model prediction versus observed cefoxitin concentrations.

Additional file 7 of Pharmacokinetics, efficacy and tolerance of cefoxitin in the treatment of cefoxitin-susceptible extended-spectrum beta-lactamase producing Enterobacterales infections in critically ill patients: a retrospective single-center study

Paul Chabert, Judith Provoost, Sabine Cohen, Céline Dupieux-Chabert, Laurent Bitker, Tristan Ferry, Sylvain Goutelle & Jean-Christophe Richard
Additional file 7: Table S3. Univariate factors associated with cefoxitin treatment failure.

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