47 Works

Data from: Disentangling the processes driving plant assemblages in mountain grasslands across spatial scales and environmental gradients

Daniel Scherrer, Heidi K. Mod, Julien Pottier, Anne Dubuis-Litsios, Loïc Pellissier, Pascal Vittoz, Lars Götzenberger, Martin Zobel & Antoine Guisan
Habitat filtering and limiting similarity are well‐documented ecological assembly processes that hierarchically filter species across spatial scales, from a regional pool to local assemblages. However, information on the effects of fine‐scale spatial partitioning of species, working as an additional mechanism of coexistence, on community patterns is much scarcer. In this study, we quantified the importance of fine‐scale spatial partitioning, relative to habitat filtering and limiting similarity in structuring grassland communities in the western Swiss Alps....

Data from: Profound genetic divergence and asymmetric parental genome contributions as hallmarks of hybrid speciation in polyploid toads

Caroline Betto-Colliard, Sylvia Hofmann, Roberto Sermier, Nicolas Perrin & Matthias Stöck
The evolutionary causes and consequences of allopolyploidization, an exceptional pathway to instant hybrid speciation, are poorly investigated in animals. In particular, when and why hybrid polyploids versus diploids are produced, and constraints on sources of paternal and maternal ancestors, remain underexplored. Using the Palearctic green toad radiation (including bisexually reproducing species of three ploidy levels) as model, we generate a range-wide multi-locus phylogeny of 15 taxa and present four new insights: (i) At least five...

Data from: A melanin-based trait is more strongly related to body size in the tropics than in temperate regions in the globally distributed barn owl family

Alexandre Roulin, Vera Uva & Andrea Romano
Life history traits differ between organisms living in the tropics, northern and southern hemispheres, and sexual selection is thought to be stronger close to the equator than in temperate regions. Although birds are often supposed to be more brightly coloured in the tropics, the current evidence of geographic variation in the intensity of sexual selection and sex-specific natural selection is equivocal. Whether sex-specific traits signal aspects of individual quality better in the tropics than in...

Data from: Selection for associative learning of color stimuli reveals correlated evolution of this learning ability across multiple stimuli and rewards.

Maartje Liefting, Katja M. Hoedjes, Cécile Le Lann, Hans M. Smid & Jacintha Ellers
We are only starting to understand how variation in cognitive ability can result from local adaptations to environmental conditions. A major question in this regard is to what extent selection on cognitive ability in a specific context affects that ability in general through correlated evolution. To address this question we performed artificial selection on visual associative learning in female Nasonia vitripennis wasps. Using appetitive conditioning in which a visual stimulus was offered in association with...

Data from: Species divergence and maintenance of species cohesion of three closely related Primula species in the Qinghai-Tibet Plateau

Guangpeng Ren, Rubén G. Mateo, Antoine Guisan, Elena Conti & Nicolas Salamin
Aim: Understanding the relative roles of geography and ecology in driving speciation, population divergence and maintenance of species cohesion is of great interest to molecular ecology. Closely related species that are parapatrically distributed in mountainous areas provide an ideal model to evaluate these key issues, especially when genomic data are analyzed within a spatially and ecologically explicit context. Here we used three closely related species of Primula that occur in the Himalayas, the Hengduan Mountains...

Data from: Positive selection on sociobiological traits in invasive fire ants

Eyal Privman, Pnina Cohen, Amir B. Cohanim, Oksana Riba-Grognuz, DeWayne Shoemaker & Laurent Keller
The fire ant Solenopsis invicta and its close relatives are highly invasive. Enhanced social cooperation may facilitate invasiveness in these and other invasive ant species. We investigated whether invasiveness in Solenopsis fire ants was accompanied by positive selection on sociobiological traits by applying a phylogenomics approach to infer ancient selection, and a population genomics approach to infer recent and ongoing selection in both native and introduced S. invicta populations. A combination of whole-genome sequencing of...

Data from: An inversion supergene in Drosophila underpins latitudinal clines in survival traits

Esra Durmaz, Clare Benson, Martin Kapun, Paul Schmidt & Thomas Flatt
Chromosomal inversions often contribute to local adaptation across latitudinal clines, but the underlying selective mechanisms remain poorly understood. We and others have previously shown that a clinal inversion polymorphism in Drosophila melanogaster, In(3R)Payne, underpins body size clines along the North American and Australian east coasts. Here we ask whether this polymorphism also contributes to clinal variation in other fitness-related traits, namely survival traits (lifespan, survival upon starvation, and survival upon cold shock). We generated homokaryon...

Data from: A dedicated target capture approach reveals variable genetic markers across micro- and macro-evolutionary time scales in palms

Marylaure De La Harpe, Jaqueline Hess, Oriane Loiseau, Nicolas Salamin, Christian Lexer & Margot Paris
Understanding the genetics of biological diversification across micro- and macro-evolutionary time scales is a vibrant field of research for molecular ecologists as rapid advances in sequencing technologies promise to overcome former limitations. In palms, an emblematic, economically and ecologically important plant family with high diversity in the tropics, studies of diversification at the population and species levels are still hampered by a lack of genomic markers suitable for the genotyping of large numbers of recently...

Data from: Inter- and intra-specific genomic divergence in Drosophila montana shows evidence for cold adaptation

Darren J. Parker, R. Axel W. Wiberg, Urmi Trivedi, Venera I. Tyukmaeva, Karim Gharbi, Roger K. Butlin, Anneli Hoikkala, Maaria Kankare & Michael G. Ritchie
D. montana gff fileGenome annotation file for D. montana genome (Accession number: LUVX00000000)D.mont_freeze_v1.4.gff.txt

Data from: Host diet mediates a negative relationship between abundance and diversity of Drosophila gut microbiota

Berra Erkosar, Erika Yashiro, Felix Zajitschek, Urban Friberg, Alexei A. Maklakov, Jan Roelof Van Der Meer & Tadeusz J. Kawecki
Nutrient supply to ecosystems has major effects on ecological diversity, but it is unclear to what degree the shape of this relationship is general versus dependent on the specific environment or community. Although the diet composition in terms of the source or proportions of different nutrient types is known to affect gut microbiota composition, the relationship between the quantity of nutrients supplied and the abundance and diversity of the intestinal microbial community remains to be...

Data from: Genetic variations in the SNP rs850807 reflect a trade-off between autism and paranoia symptom expressions: a comment on Crespi et al. 2018

Ahmad Abu-Akel
Crespi et al Data from: A genetic locus for paranoiaThese data were originally deposited by Crespi and colleagues (Crespi B, Read S, Salminen I, Hurd P. Data from: A genetic locus for paranoia. Dryad Digital Repository. 2018.) These data were used to test an alternative hypothesis to analyses in Crespi et al (Crespi B, Read S, Salminen I, Hurd P. A genetic locus for paranoia. Biol Lett. 2018;14(1).) Three columns were added to the original...

Data from: Female-biased dispersal and non-random gene flow of MC1R variants do not result in a migration load in barn owls

Valérie Ducret, Michael Schaub, Jérôme Goudet & Alexandre Roulin
Non-random gene flow is a widely neglected force in evolution and ecology. This genotype-dependent dispersal is difficult to assess, yet can impact the genetic variation of natural populations and their fitness. In this work, we demonstrate a high immigration rate of barn owls (Tyto alba) inside a Swiss population surveyed during 15 years. Using 10 microsatellite loci as an indirect method to characterize dispersal, two third of the genetic tests failed to detect a female-biased...

Data from: Experimental evolution demonstrates evolvability of preferential nutrient allocation to competing traits, in response to chronic malnutrition.

Roshan Kumar Vijendravarma
Investigating the evolutionary origins of disease vulnerability is an important aspect of evolutionary medicine that strongly complements our current understanding on proximate causes of disease. Life history trade-offs mediated through evolutionary changes in resource allocation strategies could be one possible explanation to why suboptimal traits that leave bodies vulnerable to disease exist. For example, Drosophila melanogaster populations experimentally evolved to tolerate chronic larval malnutrition succumb to intestinal infection despite eliciting a competent immune response, owing...

Data from: Fundamental and realized feeding niche breadths of sexual and asexual stick insects

Chloé Larose, Darren J. Parker & Tanja Schwander
The factors contributing to the maintenance of sex over asexuality in natural populations remain unclear. Ecological divergences between sexual and asexual lineages could help to maintain reproductive polymorphisms, at least transiently, but the consequences of asexuality for the evolution of ecological niches are unknown. Here, we investigated how niche breadths change in transitions from sexual reproduction to asexuality. We used host plant ranges as a proxy to compare the realized feeding niche breadths of five...

Data from: Post-embryonic development of Dalmanitina, and the evolution of facial suture fusion in Phacopina

Harriet B. Drage, Lukáš Laibl & Petr Budil
A large sample of post-embryonic specimens of Dalmanitina proaeva elfrida and D. socialis from the Upper Ordovician (Sandbian to Katian) Prague Basin allows for the first reasonably complete ontogenetic sequence of Dalmanitoidea (Phacopina). The material provides an abundance of morphological information, including well-preserved marginal spines in protaspides and meraspides, and hypostome external surfaces throughout. The development of D. proaeva elfrida is unusual due to variability in timing of the first trunk articulation. While broadening our...

Data from: Trade-offs and synergies between bird conservation and wildfire suppression in the face of global change

Adrian Regos, Virgilio Hermoso, Manuela D'Amen, Antoine Guisan & Lluís Brotons
1. The combined effects of climate change and other factors, such as land use change or fire disturbance, pose daunting challenges for biodiversity conservation worldwide. 2. In this study, we predicted the future effectiveness of the Natura 2000 (N2000), the current network of protected areas (PA) in Europe, at maintaining and representing suitable environmental conditions for a set of 79 bird species between 2000 and 2050 in a fire-prone area strongly affected by land abandonment...

Data from: A reciprocal translocation radically reshapes sex-linked inheritance in the common frog

Melissa A. Toups, Nicolas Rodrigues, Nicolas Perrin & Mark Kirkpatrick
X and Y chromosomes can diverge when rearrangements block recombination between them. Here we present the first genomic view of a reciprocal translocation that causes two physically unconnected pairs of chromosomes to be coinherited as sex chromosomes. In a population of the common frog (Rana temporaria), both pairs of X and Y chromosomes show extensive sequence differentiation, but not degeneration of the Ys. A new method based on gene trees shows both chromosomes are sex-linked....

Data from: Sex-antagonistic genes, XY recombination, and feminized Y chromosomes

Elisa Cavoto, Samuel Neuenschwander, Jerome Goudet & Nicolas Perrin
The canonical model of sex-chromosome evolution predicts that sex-antagonistic (SA) genes play an instrumental role in the arrest of XY recombination and ensuing Y-chromosome degeneration. Although this model might account for the highly differentiated sex chromosomes of birds and mammals, it does not fit the situation of many lineages of fish, amphibians or non-avian reptiles, where sex chromosomes are maintained homomorphic through occasional XY recombination and/or high turnover rates. Such situations call for alternative explanatory...

Data from: Do soil biota influence the outcome of novel interactions between plant competitors?

Aline Cardinaux, Simon Hart, Jake Alexander, Jake M. Alexander & Simon P. Hart
1. Species are shifting their ranges, for example to higher elevations, in response to climate change. Different plant species and soil microbiota will likely shift their ranges at different rates, giving rise to novel communities of plants and soil organisms. However, the ecological consequences of such novel plant-soil interactions are poorly understood. We experimentally simulated scenarios for novel interactions arising between high- and low elevation plants and soil biota following asynchronous climate change range shifts,...

Data from: How to estimate kinship

Jerome Goudet, Tomas Kay & Bruce S. Weir
The concept of kinship permeates many domains of fundamental and applied biology ranging from social evolution to conservation science to quantitative and human genetics. Until recently, pedigrees were the gold standard to infer kinship, but the advent of next generation sequencing and the availability of dense genetic markers in many species make it a good time to (re) evaluate the usefulness of genetic markers in this context. Using three published data sets where both pedigrees...

Data from: Parasitic versus nutritional regulation of natural fish populations

Amélie Frantz, Marie-Elodie Perga & Jean Guillard
1. Although parasites are expected to affect their host’s fitness, quantitative proof for impacts of parasitism on wild populations is hampered by confounding environmental factors, including dietary resource. 2. Herein, we evaluate whether the physiological conditions of European perch (Perca fluviatilis) in three large peri-alpine lakes (Geneva, Annecy, and Bourget) depend on (a) the nutritional status of the juvenile fish, as revealed by stable isotope and fatty acid compositions, (b) the prevalence of the tapeworm...

Data from: Two decades of non-invasive genetic monitoring of the grey wolves recolonizing the Alps support very limited dog introgression

Christophe Dufresnes, Nadège Remollino, Céline Stoffel, Ralph Manz, Jean-Marc Weber & Luca Fumagalli
Potential hybridization between wolves and dogs has fueled the sensitive conservation and political debate underlying the recovery of the grey wolf throughout Europe. Here we provide the first genetic analysis of wolf-dog admixture in an area entirely recolonized, the northwestern Alps. As part of a long-term monitoring program, we performed genetic screening of thousands of non-invasive samples collected in Switzerland and adjacent territories since the return of the wolf in the mid-1990s. We identified a...

Data from: Sex in the wild: how and why field-based studies contribute to solving the problem of sex

Maurine Neiman, Patrick Gerardus Meirmans, Tanja Schwander & Stephanie Meirmans
Why and how sexual reproduction is maintained in natural populations, the so-called “queen of problems”, is a key unanswered question in evolutionary biology. Recent efforts to solve the problem of sex have often emphasized results generated from laboratory settings. Here, we use a survey of representative “sex in the wild” literature to review and synthesize the outcomes of empirical studies focused on natural populations. Especially notable results included relatively strong support for mechanisms involving niche...

Data from: Haemosporidian infection and co-infection affect host survival and reproduction in wild populations of great tits

Romain Pigeault, Camille-Sophie Cozzarolo, Remi Choquet, Marie Strehler, Tania Jenkins, Jessica Delhaye, Lucille Bovet, Jérôme Wassef, Olivier Glaizot, Philippe Christe & C.-S. Cozzarolo
Theoretical studies predict that parasitic infection may impact host longevity and ultimately modify the trade-off between reproduction and survival. Indeed, a host may adjust its energy allocation in current reproduction to balance the negative effects of parasitism on its survival prospects. However, very few empirical studies tested this prediction. Avian haemosporidian parasites provide an excellent opportunity to assess the influence of parasitic infection on both host survival and reproduction. They are represented by three main...

Data from: Sex chromosome turnovers and genetic drift: a simulation study

Paul A Saunders, Samuel Neuenschwander & Nicolas Perrin
The recent advances of new genomic technologies has enabled to identify and characterize sex chromosomes in an increasing number of non-model species, revealing that many plants and animals undergo frequent sex chromosome turnovers. What evolutionary forces drive these turnovers remains poorly understood, but it was recently proposed that drift might play a more important role than generally assumed. We analyzed the dynamics of different types of turnovers using individual-based simulations, and show that when mediated...

Registration Year

  • 2018

Resource Types

  • Dataset


  • University of Lausanne
  • Swiss Institute of Bioinformatics
  • University of Fribourg
  • University of Pennsylvania
  • University of Cambridge
  • Leibniz Institute of Freshwater Ecology and Inland Fisheries
  • University of Haifa
  • Spanish National Research Council
  • Technical University of Madrid
  • University of Savoy