41 Works

Data from: A palaeoequatorial Ornithischian and new constraints on early dinosaur diversification

Paul M. Barrett, Richard J. Butler, Roland Mundil, Torsten M. Scheyer, Randall B. Irmis, Marcelo R. Sánchez-Villagra & M. R. Sanchez-Villagra
Current characterizations of early dinosaur evolution are incomplete: existing palaeobiological and phylogenetic scenarios are based on a fossil record dominated by saurischians and the implications of the early ornithischian record are often overlooked. Moreover, the timings of deep phylogenetic divergences within Dinosauria are poorly constrained owing to the absence of a rigorous chronostratigraphical framework for key Late Triassic–Early Jurassic localities. A new dinosaur from the earliest Jurassic of the Venezuelan Andes is the first basal...

Data from: Modelling plant species distribution in alpine grasslands using airborne imaging spectroscopy

Julien Pottier, Zbyněk Malenovský, Achilleas Psomas, Lucie Homolová, Michael E. Schaepman, Philippe Choler, Wilfried Thuiller, Antoine Guisan & Niklaus E. Zimmermann
Remote sensing using airborne imaging spectroscopy (AIS) is known to retrieve fundamental optical properties of ecosystems. However, the value of these properties for predicting plant species distribution remains unclear. Here, we assess whether such data can add value to topographic variables for predicting plant distributions in French and Swiss alpine grasslands. We fitted statistical models with high spectral and spatial resolution reflectance data and tested four optical indices sensitive to leaf chlorophyll content, leaf water...

Data from: Genic rather than genome-wide differences between sexually deceptive Ophrys orchids with different pollinators

Khalid E. M. Sedeek, Giovanni Scopece, Yannick M. Staedler, Jürg Schönenberger, Salvatore Cozzolino, Florian P. Schiestl & Philipp M. Schlüter
High pollinator specificity and the potential for simple genetic changes to affect pollinator attraction make sexually deceptive orchids an ideal system for the study of ecological speciation, in which change of flower odour is likely important. This study surveys reproductive barriers and differences in floral phenotypes in a group of four closely related, co-flowering sympatric Ophrys species, and uses a genotyping by sequencing (GBS) approach to obtain information on the proportion of the genome that...

Data from: Female house mice avoid fertilization by t haplotype incompatible males in a mate choice experiment

Andri Manser, Barbara König & Anna K. Lindholm
The t haplotype in house mice is a well-known selfish genetic element with detrimental, nonadditive fitness consequences to its carriers: recessive lethal mutations cause t/t homozygotes to perish in utero. Given the severe genetic incompatibility imposed by the t haplotype, we predict females to avoid fertilization by t haplotype incompatible males. Indeed, some of the strongest evidence for compatibility mate choice is related to the t haplotype in house mice. However, all previous evidence for...

Data from: Condition dependence and the maintenance of genetic variance in a sexually dimorphic black scavenger fly

Cait Dmitriew & Wolf U. Blanckenhorn
The maintenance of genetic variation in traits under strong sexual selection is a longstanding problem in evolutionary biology. The genic capture model proposes that this problem can be explained by the evolution of condition dependence in exaggerated male traits. We tested the predictions that condition dependence should be more pronounced in male sexual traits and that genetic variance in expression of these traits should increase under stress as among-genotype variation in overall condition is exposed....

Data from: Heterostyly promotes disassortative pollination and reduces sexual interference in Darwin’s primroses: evidence from experimental studies

Barbara Keller, James D. Thomson & Elena Conti
Different strategies to reduce selfing and promote outcrossing have evolved in hermaphroditic flowers. Heterostyly, a complex floral polymorphism that occurs in at least 27 families of angiosperms, is hypothesized to achieve both goals by optimizing cross-pollination (via disassortative pollen transfer) and restricting gamete wastage to autogamy (via the reduction of sexual interference between male and female organs). In heterostylous flowers, the reciprocal positioning of sexual organs in different morphs and the pollen incompatibility-system within flower...

Data from: Reconstructing the demographic history of orang-utans using approximate Bayesian computation

Alexander Nater, Maja P. Greminger, Natasha Arora, Carel P. Van Schaik, Benoit Goossens, Ian Singleton, Ernst J. Verschoor, Kristen S. Warren, Michael Krützen & Kristin S. Warren
Investigating how different evolutionary forces have shaped patterns of DNA variation within and among species requires detailed knowledge of their demographic history. Orang-utans, whose distribution is currently restricted to the Southeast Asian islands of Borneo (Pongo pygmaeus) and Sumatra (Pongo abelii), have likely experienced a complex demographic history, influenced by recurrent changes in climate and sea levels, volcanic activities and anthropogenic pressures. Using the most extensive sample set of wild orang-utans to date, we employed...

Data from: Contemporary ecotypic divergence during a recent range expansion was facilitated by adaptive introgression

Kay Lucek, Mélissa Lemoine & Ole Seehausen
Although rapid phenotypic evolution during range expansion associated with colonization of contrasting habitats has been documented in several taxa, the evolutionary mechanisms that underlie such phenotypic divergence have less often been investigated. A strong candidate for rapid ecotype formation within an invaded range is the three-spine stickleback in the Lake Geneva region of central Europe. Since its introduction only about 140 years ago, it has undergone a significant expansion of its range and its niche,...

Data from: Fossils and a large molecular phylogeny show that the evolution of species richness, generic diversity and turnover rates are disconnected

Yaowu Xing, Renske E. Onstein, Richard J. Carter, Tanja Stadler & H. Peter Linder
The magnitude and extent of global change during the Cenozoic are remarkable, yet the impacts of these changes on biodiversity and the evolutionary dynamics of species diversification remain poorly understood. To investigate this question we combine palaeontological and neontological data for the angiosperm order Fagales, an ecologically important clade of c. 1370 species of trees with an exceptional fossil record. We show differences in patterns of accumulation of generic diversity, species richness, and turnover rates...

Data from: Coevolutionary dynamics of polyandry and sex-linked meiotic drive

Luke Holman, Thomas A. R. Price, Nina Wedell & Hanna Kokko
Segregation distorters located on sex chromosomes are predicted to sweep to fixation and cause extinction via a shortage of one sex, but in nature they are often found at low, stable frequencies. One potential resolution to this long-standing puzzle involves female multiple mating (polyandry). Because many meiotic drivers severely reduce the sperm competitive ability of their male carriers, females are predicted to evolve more frequent polyandry and thereby promote sperm competition when a meiotic driver...

Data from: Species richness-productivity relationships of tropical terrestrial ferns at regional and local scales

Michael Kessler, Laura Salazar, Jürgen Homeier & Jürgen Kluge
1. The species richness-productivity relationship (SRPR), by which the species richness of habitats or ecosystems is related to the productivity of the ecosystem or the taxon, has been documented both on regional and local scales, but its generality, biological meaning, and underlying mechanisms remain debated. 2. We evaluated the SRPR and 3 mechanistic hypotheses using terrestrial ferns in 18 study plots along an elevational gradient (500-4000 m) in Ecuador. We measured annual increases in above-ground...

Data from: Imbalance in individual researcher’s peer review activities quantified for four British Ecological Society Journals, 2003-2010

Owen L. Petchey, Jeremy W. Fox & Lindsay Haddon
Researchers contribute to the scientific peer review system by providing reviews, and “withdraw” from it by submitting manuscripts that are subsequently reviewed. So far as we are aware, there has been no quantification of the balance of individual's contributions and withdrawals. We compared the number of reviews provided by individual researchers (i.e., their contribution) to the number required by their submissions (i.e. their withdrawals) in a large and anonymised database provided by the British Ecological...

Data from: A new species of the paper wasp genus Polistes (Hymenoptera, Vespidae, Polistinae) in Europe revealed by morphometrics and molecular analyses

Rainer Neumeyer, Hannes Baur, Gaston-Denis Guex & Christophe Praz
We combine multivariate ratio analysis (MRA) of body measurements and analyses of mitochondrial and nuclear data to examine the status of several species of European paper wasps (Polistes Latreille, 1802) closely related to P. gallicus. Our analyses unambiguously reveal the presence of a cryptic species in Europe, as two distinct species can be recognized in what has hitherto been considered Polistes bischoffi Weyrauch, 1937. One species is almost as light coloured as P. gallicus, and...

Data from: De novo assembly and comparative analysis of the Ceratodon purpureus transcriptome

Péter Szövényi, Pierre-François Perroud, Aikaterini Symeonidi, Sean Stevenson, Ralph S. Quatrano, Stefan A. Rensing, Andrew C. Cuming & Stuart F. McDaniel
The bryophytes are a morphologically and ecologically diverse group of plants that have recently emerged as major model systems for a variety of biological processes. In particular, the genome sequence of the moss, Physcomitrella patens, has significantly enhanced our understanding of the evolution of developmental processes in land plants. However, to fully explore the diversity within bryophytes, we need additional genomic resources. Here we describe analyses of the transcriptomes of a male and a female...

Data from: Sexual selection and the evolution of the Major Histocompatibility Complex

Maciej Jan Ejsmond, Jacek Radwan & Anthony B. Wilson
The genes of the major histocompatibility complex (MHC) are a key component of the adaptive immune system and among the most variable loci in the vertebrate genome. Pathogen-mediated natural selection and MHC-based disassortative mating are both thought to structure MHC polymorphism, but their effects have proven difficult to discriminate in natural systems. Using the first model of MHC dynamics incorporating both survival and reproduction, we demonstrate that natural and sexual selection produce distinctive signatures of...

Data from: Density-dependent movement and the consequences of the Allee effect in the model organism Tetrahymena

Emanuel A. Fronhofer, Tabea Kropf & Florian Altermatt
1. Movement and dispersal are critical processes for almost all organisms in natural populations. Understanding their causes and consequences is therefore of high interest. While both theoretical and empirical work suggests that dispersal, more exactly emigration, is plastic and may be a function of local population density, the functional relationship between the underlying movement strategies and population density has received less attention. 2. We here present evidence for the shape of this reaction norm and...

Data from: Quantifying inbreeding avoidance through extra-pair reproduction

Jane M. Reid, Peter Arcese, Lukas F. Keller, Ryan R. Germain, Alexander Bradley Duthie, Sylvain Losdat, Matthew Ernest Wolak & Pirmin Nietlisbach
Extra-pair reproduction is widely hypothesised to allow females to avoid inbreeding with related socially-paired males. Consequently, numerous field studies have tested the key predictions that extra-pair offspring are less inbred than females’ alternative within-pair offspring, and that the probability of extra-pair reproduction increases with a female's relatedness to her socially-paired male. However such studies rarely measure inbreeding or relatedness sufficiently precisely to detect subtle effects, or consider biases stemming from failure to observe inbred offspring...

Data from: Density- and trait-mediated effects of a parasite and a predator in a tri-trophic food web

Aabir Banerji, Alison B. Duncan, Joanne S. Griffin, Stuart Humphries, Owen L. Petchey & Oliver Kaltz
1. Despite growing interest in ecological consequences of parasitism in food webs, relatively little is known about effects of parasites on long-term population dynamics of non-host species or about whether such effects are density- or trait- mediated. 2. We studied a tri-trophic food chain comprised of: (i) a bacterial basal resource (Serratia fonticola), (ii) an intermediate consumer (Paramecium caudatum), (iii) a top predator (Didinium nasutum), and (iv) a parasite of the intermediate consumer (Holospora undulata)....

Data from: Selection for niche differentiation in mixed plant communities increases biodiversity effects

Debra Zuppinger-Dingley, Bernhard Schmid, Jana S. Petermann, Varuna Yadav, Gerlinde B. De Deyn & Dan F. B. Flynn
In experimental plant communities, relationships between biodiversity and ecosystem functioning have been found to strengthen over time, a fact often attributed to increased resource complementarity between species in mixtures and negative plant–soil feedbacks in monocultures. Here we show that selection for niche differentiation between species can drive this increasing biodiversity effect. Growing 12 grassland species in test monocultures and mixtures, we found character displacement between species and increased biodiversity effects when plants had been selected...

Data from: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes

Riddhiman Dhar, Tobias Bergmiller & Andreas Wagner
Gene duplication is important in evolution, because it provides new raw material for evolutionary adaptations. Several existing hypotheses about the causes of duplicate retention and diversification differ in their emphasis on gene dosage, sub-functionalization, and neo-functionalization. Little experimental data exists on the relative importance of gene expression changes and changes in coding regions for the evolution of duplicate genes. Furthermore, we do not know how strongly the environment could affect this importance. To address these...

Data from: 'Prudent habitat choice': a novel mechanism of size-assortative mating

Barbara Taborsky, Luzia Guyer & Patrick Demus
Assortative mating, an ubiquitous form of nonrandom mating, strongly impacts Darwinian fitness and can drive biological diversification. Despite its ecological and evolutionary importance, the behavioural processes underlying assortative mating are often unknown, and in particular, mechanisms not involving mate choice have been largely ignored so far. Here, we propose that assortative mating can arise from ‘prudent habitat choice’, a general mechanism that acts under natural selection, and that it can occur despite a complete mixing...

Data from: A tale of two morphs: modeling pollen transfer, magic traits, and reproductive isolation in parapatry

Benjamin C. Haller, Jurriaan M. De Vos, Barbara Keller, Andrew P. Hendry & Elena Conti
The evolution of the flower is commonly thought to have spurred angiosperm diversification. Similarly, particular floral traits might have promoted diversification within specific angiosperm clades. We hypothesize that traits promoting the precise positional transfer of pollen between flowers might promote diversification. In particular, precise pollen transfer might produce partial reproductive isolation that facilitates adaptive divergence between parapatric populations differing in their reproductive-organ positions. We investigate this hypothesis with an individual-based model of pollen transfer dynamics...

Data from: The draft genome of Primula veris yields insights into the molecular basis of heterostyly

Michael D. Nowak, Giancarlo Russo, Ralph Schlapbach, Cuong Nguyen Huu, Michael Lenhard & Elena Conti
Annotation files for the Primula veris genome assemblyThe included files were produced with the Maker2 annotation pipeline.Pveris_Maker2_Genome_Annotation.tgz

Data from: Cultural transmission of tool use combined with habitat specializations leads to fine-scale genetic structure in bottlenose dolphins

Anna M. Kopps, Corinne Y. Ackermann, William B. Sherwin, Simon J. Allen, Lars Bejder, Michael Krützen & M. Krutzen
Kopps et al 2014 genotypes

Data from: Female and male genetic effects on offspring paternity: additive genetic (co)variances in female extra-pair reproduction and male paternity success in song sparrows (Melospiza melodia)

Jane M. Reid, Peter Arcese, Lukas F. Keller & Sylvain Losdat
Ongoing evolution of polyandry, and consequent extra-pair reproduction in socially monogamous systems, is hypothesised to be facilitated by indirect selection stemming from cross-sex genetic covariances with components of male fitness. Specifically, polyandry is hypothesised to create positive genetic covariance with male paternity success due to inevitable assortative reproduction, driving ongoing coevolution. However, it remains unclear whether such covariances could or do emerge within complex polyandrous systems. First, we illustrate that genetic covariances between female extra-pair...

Registration Year

  • 2014
    41

Resource Types

  • Dataset
    41

Affiliations

  • University of Zurich
    41
  • Swiss Federal Institute of Technology in Zurich
    4
  • Swiss Federal Institute of Aquatic Science and Technology
    3
  • Swiss Institute of Bioinformatics
    2
  • Murdoch University
    2
  • University of Aberdeen
    2
  • University of Lausanne
    2
  • Philipp University of Marburg
    2
  • University of Bern
    2
  • University of British Columbia
    2