39 Works

Data from: Tipping the scales: evolution of the allometric slope independent of average trait size

R. Craig Stillwell, Alexander W. Shingleton, Ian Dworkin & W. Anthony Frankino
The scaling of body parts is central to the expression of morphology across body sizes and to the generation of morphological diversity within and among species. Although patterns of scaling-relationship evolution have been well documented for over one hundred years, little is known regarding how selection acts to generate these patterns. In part, this is because it is unclear the extent to which the elements of log-linear scaling relationships – the intercept or mean trait...

Data from: Capturing neutral and adaptive genetic diversity for conservation in a highly structured tree species

Isabel Rodríguez-Quilón, Luis Santos-Del-Blanco, María Jesús Serra-Varela, Jarkko Koskela, Santiago César González-Martínez & Ricardo Alía
Preserving intraspecific genetic diversity is essential for long-term forest sustainability in a climate change scenario. Despite that, genetic information is largely neglected in conservation planning, and how conservation units should be defined is still heatedly debated. Here, we use maritime pine (Pinus pinaster Ait.), an outcrossing long lived tree with a highly fragmented distribution in the Mediterranean biodiversity hotspot, to prove the importance of accounting for genetic variation - at both neutral molecular markers and...

Data from: Parallel effects of the inversion In(3R)Payne on body size across the North American and Australian clines in Drosophila melanogaster

Martin Kapun, Chloe Schmidt, Esra Durmaz, Paul S. Schmidt & Thomas Flatt
Chromosomal inversions are thought to play a major role in climatic adaptation. In D. melanogaster, the cosmopolitan inversion In(3R)Payne exhibits latitudinal clines on multiple continents. Since many fitness traits show similar clines, it is tempting to hypothesize that In(3R)P underlies observed clinal patterns for some of these traits. In support of this idea, previous work in Australian populations has demonstrated that In(3R)P affects body size but not development time or cold resistance. However, similar data...

Data from: Just Google it: assessing the use of Google Images to describe geographical variation in visible traits of organisms

Gabriella R. M. Leighton, Pierre S. Hugo, Alexandre Roulin & Arjun Amar
Describing spatial patterns of phenotypic traits can be important for evolutionary and ecological studies. However, traditional approaches, such as fieldwork, can be time-consuming and expensive. Information technologies, such as Internet search engines, could facilitate the collection of these data. Google Images is one such technology that might offer an opportunity to rapidly collect information on spatial patterns of phenotypic traits. We investigated the use of Google Images in extracting data on geographical variation in phenotypic...

Data from: Selective disappearance of individuals with high levels of glycated haemoglobin in a free-living bird

Charlotte Récapet, Adélaïde Sibeaux, Laure Cauchard, Blandine Doligez & Pierre Bize
Although disruption of glucose homeostasis is a hallmark of ageing in humans and laboratory model organisms, we have little information on the importance of this process in free-living animals. Poor control of blood glucose levels leads to irreversible protein glycation. Hence, levels of protein glycation are hypothesized to increase with age and to be associated with a decline in survival. We tested these predictions by measuring blood glycated haemoglobin in 274 adult collared flycatchers of...

Data from: Coevolution between positive reciprocity, punishment, and partner switching in repeated interactions

Matthias Wubs, Redouan Bshary & Laurent Lehmann
Cooperation based on mutual investments can occur between unrelated individuals when they are engaged in repeated interactions. Individuals then need to use a conditional strategy to deter their interaction partners from defecting. Responding to defection such that the future payoff of a defector is reduced relative to cooperating with it is called a partner control mechanism. Three main partner control mechanisms are (i) to switch from cooperation to defection when being defected (‘positive reciprocity’), (ii)...

Data from: Family-assisted inference of the genetic architecture of MHC variation

Arnaud Gaigher, Reto Burri, Walid H. Gharib, Pierre Taberlet, Alexandre Roulin & Luca Fumagalli
With their direct link to individual fitness, genes of the major histocompatibility complex (MHC) are a popular system to study the evolution of adaptive genetic diversity. However, owing to the highly dynamic evolution of the MHC region, the isolation, characterization and genotyping of MHC genes remain a major challenge. While high-throughput sequencing technologies now provide unprecedented resolution of the high allelic diversity observed at the MHC, in many species, it remains unclear (i) how alleles...

Data from: Dmrt1 polymorphism covaries with sex-determination patterns in Rana temporaria

Wen-Juan Ma, Nicolas Rodrigues, Roberto Sermier, Alan Brelsford & Nicolas Perrin
Patterns of sex-chromosome differentiation and gonadal development have been shown to vary among populations of Rana temporaria along a latitudinal transect in Sweden. Frogs from the northern-boreal population of Ammarnäs displayed well-differentiated X and Y haplotypes, early gonadal differentiation, and a perfect match between phenotypic and genotypic sex. In contrast, no differentiated Y haplotypes could be detected in the southern population of Tvedöra, where juveniles furthermore showed delayed gonadal differentiation. Here, we show that Dmrt1,...

Data from: Imprints of multiple glacial refugia in the Pyrenees revealed by phylogeography and palaeodistribution modelling of an endemic spider

Leticia Bidegaray-Batista, Alejandro Sánchez-Garcia, Giulia Santulli, Luigi Maiorano, Antoine Guisan, Alfried Vogler & Miquel Arnedo
Mediterranean mountain ranges harbour highly endemic biota in islandlike habitats. Their topographic diversity offered the opportunity for mountain species to persist in refugial areas during episodes of major climatic change. We investigate the role of Quaternary climatic oscillations in shaping the demographic history and distribution ranges in the spider Harpactocrates ravastellus, endemic to the Pyrenees. Gene trees and multispecies coalescent analyses on mitochondrial and nuclear DNA sequences unveiled two distinct lineages with a hybrid zone...

Data from: Trans-species variation in Dmrt1 is associated with sex determination in four European tree-frog species

Alan Brelsford, Christophe Dufresnes & Nicolas Perrin
Empirical studies on the relative roles of occasional XY recombination versus sex-chromosome turnover in preventing sex-chromosome differentiation may shed light on the evolutionary forces acting on sex-determination systems. Signatures of XY recombination are difficult to distinguish from those of homologous transitions (i.e., transitions in sex-determination systems that keep sex-chromosome identity): both models predict X and Y alleles at sex-linked genes to cluster by species. However, the XY-recombination model specifically predicts the reverse pattern (clustering by...

Data from: Hybridization as a threat in climate relict Nuphar pumila (Nymphaeaceae)

Nils Arrigo, Sébastien Bétrisey, Larissa Graff, Julia Bilat, Emmanuel Gerber & Gregor Kozlowski
Field studies and conceptual work on hybridization-mediated extinction risk in climate relicts are extremely rare. Nuphar pumila (Nymphaeaceae) is one of the most emblematic climate relicts in Europe with few isolated populations in the Alpine arc. The extent of introgression with related lowland and generalist species Nuphar lutea has never been studied using molecular methods. All biogeographical regions where N. pumila naturally occurs in the neighbourhood of the Alpine arc were sampled and studied using...

Data from: Evolutionary melting pots: a biodiversity hotspot shaped by ring diversifications around the Black Sea in the Eastern tree frog (Hyla orientalis)

Christophe Dufresnes, Spartak N. Litvinchuk, Julien Leuenberger, Karim Ghali, Oleksandr Zinenko, Matthias Stöck & Nicolas Perrin
Hotspots of intraspecific genetic diversity, which are of primary importance for the conservation of species, have been associated with glacial refugia, that is areas where species survived the Quaternary climatic oscillations. However, the proximate mechanisms generating these hotspots remain an open issue. Hotspots may reflect the long-term persistence of large refugial populations; alternatively, they may result from allopatric differentiation between small and isolated populations, that later admixed. Here, we test these two scenarios in a...

Data from: Comparison of self-perceived cardiovascular disease risk among smokers with Framingham and PROCAM scores: a cross-sectional analysis of baseline data from a randomised controlled trial

Benoit Desgraz, Tinh-Hai Collet, Nicolas Rodondi, Jacques Cornuz & Carole Clair
Objectives: Previous studies suggest that smokers have a misperception of their 10-year cardiovascular risk. We aimed to compare 10-year cardiovascular risk self-perception and calculated risk among smokers willing to quit and assess the determinants of a possible misperception. Design: Cross-sectional secondary analysis of baseline data from a randomized controlled trial of smoking cessation. Participants: 514 participants, mean age 51.1 years, 46% women, 98% Caucasian. Eligible participants were regular smokers, aged between 40 and 70 years,...

Data from: Convergent evolution of social hybridogenesis in Messor harvester ants

Jonathan Romiguier, Axel Fournier, Sze Huei Yek & Laurent Keller
Sexual reproduction generally requires no more than two partners. Here, we show convergent evolution of social hybridogenesis, a reproductive system requiring three reproductive partners in harvester ants. In this unorthodox reproductive system, two distinct genetic lineages live in sympatry and queens have to mate with males of their own lineage to produce queens along with males of the alternative lineage to produce workers. Using a large transcriptomic data set of nine species, we show that...

Data from: The genetic contribution to sex determination and number of sex chromosomes vary among populations of common frogs (Rana temporaria)

Nicolas Rodrigues, Yvan Vuille, Alan Brelsford, Juha Merilä & Nicolas Perrin
The patterns of sex determination and sex differentiation have been shown to differ among geographic populations of common frogs. Notably, the association between phenotypic sex and linkage group 2 (LG2) has been found to be perfect in a northern Swedish population, but weak and variable among families in a southern one. By analyzing these populations with markers from other linkage groups, we bring two new insights: (1) the variance in phenotypic sex not accounted for...

Data from: Revisiting the measurement of anomie

Ali Teymoori, Jolanda Jetten, Brock Bastian, Amarina Ariyanto, Frédérique Autin, Nadia Ayub, Constantina Badea, Tomasz Besta, Fabrizio Butera, Rui Costa-Lopes, Lijuan Cui, Carole Fantini, Gillian Finchilesc, Lowell Gaertner, Mario Gollwitzer, Ángel Gómez, Roberto González, Ying Yi Hong, Dorthe Høj Jensen, Minoru Karasawa, Thomas Kessler, Olivier Klein, Marcus Lima, Tuuli Anna Mähönen, Laura Megevand … & Gillian Finchilescu
Sociologists coined the term "anomie" to describe societies that are characterized by disintegration and deregulation. Extending beyond conceptualizations of anomie that conflate the measurements of anomie as 'a state of society' and as a 'state of mind', we disentangle these conceptualizations and develop an analysis and measure of this phenomenon focusing on anomie as a perception of the 'state of society'. We propose that anomie encompasses two dimensions: a perceived breakdown in social fabric (i.e.,...

Data from: Empirical evidence for large X-effects in animals with undifferentiated sex chromosomes

Christophe Dufresnes, Tomasz Majtyka, Stuart J. E. Baird, Jörn F. Gerchen, Amaël Borzée, Romain Savary, Maria Ogielska, Nicolas Perrin & Matthias Stöck
Reproductive isolation is crucial for the process of speciation to progress. Sex chromosomes have been assigned a key role in driving reproductive isolation but empirical evidence from natural population processes has been restricted to organisms with degenerated sex chromosomes such as mammals and birds. Here we report restricted introgression at sex-linked compared to autosomal markers in a hybrid zone between two incipient species of European tree frog, Hyla arborea and H. orientalis, whose homologous X...

Data from: Ants exhibit asymmetric hybridization in a mosaic hybrid zone

Jessica Purcell, Sacha Zahnd, Anouk Athanasiades, Rebecca Türler, Michel Chapuisat & Alan Brelsford
Research on hybridization between species provides unparalleled insights into the pre- and post-zygotic isolating mechanisms that drive speciation. In social organisms, colony-level incompatibilities may provide additional reproductive barriers not present in solitary species, and hybrid zones offer an opportunity to identify these barriers. Here, we use genotyping-by-sequencing to sequence hundreds of markers in a hybrid zone between two socially polymorphic ant species, Formica selysi and Formica cinerea. We characterize the zone, determine the frequency of...

Data from: Pleiotropy and the low cost of individual traits promote cooperation

Sara Mitri & Kevin R. Foster
The evolution of cooperation is thought to be promoted by pleiotropy, whereby cooperative traits are co-regulated with traits that are important for personal fitness. However, this hypothesis faces a key challenge: what happens if mutation targets a cooperative trait specifically rather than the pleiotropic regulator? Here we explore this question with the bacterium Pseudomonas aeruginosa, which cooperatively digests complex proteins using elastase. We empirically measure and theoretically model the fate of two mutants – one...

Data from: Detection of invasive mosquito vectors using environmental DNA (eDNA) from water samples

Judith Schneider, Alice Valentini, Tony Dejean, Fabrizio Montarsi, Pierre Taberlet, Olivier Glaizot & Luca Fumagalli
Repeated introductions and spread of invasive mosquito species (IMS) have been recorded on a large scale these last decades worldwide. In this context, members of the mosquito genus Aedes can present serious risks to public health as they have or may develop vector competence for various viral diseases. While the Tiger mosquito (Aedes albopictus) is a well-known vector for e.g. dengue and chikungunya viruses, the Asian bush mosquito (Ae. j. japonicus) and Ae. koreicus have...

Data from: Sexual selection shapes development and maturation rates in Drosophila

Brian Hollis, Laurent Keller & Tadeusz J. Kawecki
Explanations for the evolution of delayed maturity usually invoke trade-offs mediated by growth, but processes of reproductive maturation often continue long after growth has ceased. Here, we tested whether sexual selection shapes the rate of post-eclosion maturation in the fruit fly Drosophila melanogaster. We found that populations maintained for more than 100 generations under a short generation time and polygamous mating system evolved faster post-eclosion maturation and faster egg-to-adult development of males, when compared to...

Data from: Lifespan and reproductive cost explain interspecific variation in the optimal onset of reproduction

Emeline Mourocq, Pierre Bize, Sandra Bouwhuis, Russell Bradley, Anne Charmantier, Carlos De La Cruz, Szymon Marian Obniak, Richard H. M. Espie, Márton Herenyi, Hermann Hötker, Oliver Kruger, John Marzluff, Anders P. Møller, Shinichi Nakagawa, Richard A. Phillips, Andrew N. Radford, Alexandre Roulin, János Török, Juliana Valencia, Martijn Van De Pol, Ian G. Warkentin, Isabel S. Winney, Andrew G. Wood, Michael Griesser & Szymon M. Drobniak
Fitness can be profoundly influenced by the age at first reproduction (AFR), but to date the AFR-fitness relationship only has been investigated intraspecifically. Here we investigated the relationship between AFR and average lifetime reproductive success (LRS) across 34 bird species. We assessed differences in the deviation of the Optimal AFR (i.e., the species-specific AFR associated with the highest LRS) from the age at sexual maturity, considering potential effects of life-history as well as social and...

Data from: Habitat heterogeneity favors asexual reproduction in natural populations of grassthrips

Guillaume Lavanchy, Marie Strehler, Maria Noemi Llanos Roman, Malie Lessard Therrien, Jean-Yves Humbert, Zoé Dumas, Kirsten Jalvingh, Karim Ghali, Amaranta Fontcuberta García-Cuenca, Bart Zijlstra, Raphaël Arlettaz, Tanja Schwander & Malie Lessard-Therrien
Explaining the overwhelming success of sex among eukaryotes is difficult given the obvious costs of sex relative to asexuality. Different studies have shown that sex can provide benefits in spatially heterogeneous environments under specific conditions, but whether spatial heterogeneity commonly contributes to the maintenance of sex in natural populations remains unknown. We experimentally manipulated habitat heterogeneity for sexual and asexual thrips lineages in natural populations and under seminatural mesocosm conditions by varying the number of...

Data from: Effects of pollination intensity on offspring number and quality in a wind-pollinated herb

Anne-Marie Labouche, Shane A. Richards & John R. Pannell
Low pollination intensity may cause low seed set in plant populations and is thought to be responsible for evolutionary transitions from outcrossing to selfing, or from animal to wind pollination. Variation in pollination intensity may also affect seed quality both through its influence on the degree of pollen competition (with lower quality offspring produced under low pollen intensities) and through seed size–number trade-offs (with plants under low pollination intensity producing fewer but larger seeds). Here,...

Data from: Small-scale and regional spatial dynamics of an annual plant with contrasting sexual systems

Marcel E. Dorken, Robert P. Freckleton & John R. Pannell
1.Plant demography is known to depend on both spatial dynamics and life history, but how these two factors interact is poorly understood. We conducted a longitudinal study of the wind-pollinated annual plant Mercurialis annua that varies geographically in its sexual system to investigate this interaction. 2.Metapopulation demographic models predict that regular population turnover should be a more common feature of monomorphic than dimorphic populations because males and females cannot found new populations by selfing but...

Registration Year

  • 2016

Resource Types

  • Dataset


  • University of Lausanne
  • University of Bern
  • University of California System
  • University of Neuchâtel
  • University of Aberdeen
  • French National Centre for Scientific Research
  • Trent University
  • University of Helsinki
  • Uppsala University
  • University of Oxford