58 Works

Scripts and files for \"Small-scale population divergence is driven by local larval environment in a temperate amphibian\"

Patrik Rödin Mörch, Hugo Palejowski, Maria Cortazar-Chinarro, Simon Kärvemo, Alex Richter-Boix, Jacob Höglund & Anssi Laurila
Genomic variation within and among populations is shaped by the interplay between natural selection and the effects of genetic drift and gene flow. Adaptive divergence can be found in small scale natural systems even when population sizes are small and the potential for gene flow is high, suggesting that local environments exert selection pressures strong enough to counteract the opposing effects of drift and gene flow. Here, we investigated genomic differentiation in nine moor frog...

Data from: Regulation of fatty acid composition related to ontogenetic changes and niche differentiation of a common aquatic consumer

Fernando Chaguaceda, Scharnweber Kristin & Peter Eklöv
Fatty acids (FAs) are key nutrients for fitness which take part in multiple physiological processes over the ontogeny of organisms. Yet, we lack evidence on how FA nutrition mediates life-history trade-offs and ontogenetic niche shifts in natural populations. In a field study, we analyzed ontogenetic changes in the FAs of Eurasian perch (Perca fluviatilis L.), a widespread fish that goes through ontogenetic niche shifts and can have high individual niche specialization. Diet explained most of...

Data from: Trade-off between somatic and germline repair in a vertebrate supports the expensive germ line hypothesis

Simone Immler, Hwei-Yen Chen, Kasparas Bublys, Cecile Jolly & Daniel Marcu
The disposable soma theory is a central tenet of the biology of aging where germline immortality comes at the cost of an aging soma [T. B. L. Kirkwood, Nature 270, 301–304 (1977); T. B. L. Kirkwood, Proc. R. Soc. Lond. B Biol. Sci. 205, 531–546 (1979); T. B. L. Kirkwood, S. N. Austad, Nature 408, 233–238 (2000)]. Limited resources and a possible trade-off between the repair and maintenance of the germ cells and growth and...

High variation in last male sperm precedence and genital morphology in the emerald damselfly Lestes sponsa

Frank Johansson, David Berger, Jacob Höglund, Yvonne Meyer-Lucht, Patrik Rödin-Mörch, Szymon Sniegula & Phillip Watts
In organisms where individuals mate multiply, knowledge on the proportion of offspring sired by the last male to mate (P2) under field conditions is important for a thorough understanding of how sexual selection works in nature. In many insect groups, pronounced intraspecific variation in P2 is commonplace. Interestingly, however, in stark contrast to these observations, compilation of P2 data in dragonflies and damselflies (Odonata) indicate that a high P2, seldom below 0.95, is a feature...

Experimentally induced intrasexual mating competition and sex-specific evolution in female and male nematodes

Josefine Stångberg, Elina Immonen, Pilar Puimedon Moreno & Elisabeth Bolund
Sexual dimorphism in life history traits and their trade-offs is widespread among sexually reproducing animals, and is strongly influenced by the differences in reproductive strategies between the sexes. We investigated how intrasexual competition (pre- and postcopulatory) acted on specific life history traits, important to fitness, and their trade-offs in the outcrossing nematode Caenorhabditis remanei. Here, we imposed strong sex-specific selection through experimental evolution with increased potential for intrasexual competition by skewing the adult sex ratio...

Data from: Mechanisms of male-male interference during dispersal of orchid pollen

Lawrence Harder, Shane A. Richards, Jon Ågren & Steven D. Johnson
Siring success of flowering plants depends on the fates of male gametophytes, which compete for access to stigmas, stylar resources and ovules. Although rarely considered, pollen may often compete during dispersal, affecting the processes required for export to stigmas; pollen pickup, transport and deposition. We quantified dispersal interference by tracking bee dispersal of stained Anacamptis morio (Orchidaceae) pollen from individual donor flowers and inferred the affected dispersal mechanisms based on the fit of a process-based...

Raw fitness data (offspring number and weight), main dataset for manuscript: Female-specific resource limitation does not make the opportunity for selection more female biased

Ivain Martinossi-Allibert, Elina Immonen & Johanna L. Rönn
The present dataset contains the entirety of the raw empirical data used in the manuscript entitled: "Female-specific resource limitation does not make the opportunity for selection more female biased". This data is composed of offspring count and weight, which represent proxys of fitness. Fitness was assessed for males and females independently, and across three different experimental treatments. These fitness measures are used to calculate the opportunity for selection, as the variance in realtive fitness. Detailed...

Genomic variation data for the wagtail hybrid zone

Georgy Semenov, Ethan Link, Erik Enbody, Rebecca Harris, David Khaydarov, Per Alström, Leif Andersson & Scott Taylor
Genome-wide variation in introgression rates across hybrid zones offers a powerful opportunity for studying population differentiation. One poorly understood pattern of introgression is the geographic displacement of a trait implicated in lineage divergence from genome-wide population boundaries. While difficult to interpret, this pattern can facilitate the dissection of trait genetic architecture because traits become uncoupled from their ancestral genomic background. We studied an example of trait displacement generated by the introgression of head plumage coloration...

French (F) and Swedish (S) Founder (P) and Mutation Accumulation Line (MA) performance in France and Sweden

Charles Fenster, Mao-Lun Weng, Jon Agren, Henning Nottebrock, Eric Imbert & Matthew Rutter
Little is empirically known about the contribution of mutations to fitness in natural environments. However, Fisher's Geometric Model (FGM) provides a conceptual foundation to consider the influence of the environment on mutational effects. To quantify mutational properties in the field, we established eight sets of MA lines (7-10 generations) derived from eight founders collected from natural populations of Arabidopsis thaliana from French and Swedish sites, representing the range margins of the species in Europe. We...

Data from: Scented nectar and the challenge of measuring honest signals in pollination

Amy Parachnowitsch, Rosalie Burdon, Rob Raguso, Robert Gegear, Ellen Pierce & André Kessler
1. Nectar scents are thought to function as honest signals of reward used by pollinators, but this hypothesis has rarely been tested. 2. Using Penstemon digitalis, we examined honest signalling of the nectar volatile (S)-(+)-linalool and pollinator responses to linalool in both field and laboratory settings. Because our previous work showed that linalool emission was associated with higher female fitness and that nectar is scented with linalool, we hypothesized that linalool was an honest signal...

Data from: Small Carbonaceous Fossils (SCFs) from North Greenland: new light on metazoan diversity in early Cambrian shelf environments

Elise Wallet, Ben Slater, Sebastian Willman & John Peel
The Sirius Passet Lagerstätte of North Greenland provides one of the oldest records of soft-bodied metazoan-dominated ecosystems from within the early Cambrian. The Lagerstätte site itself is restricted to just a single ~1 km-long outcrop located offshore from the shelf margin, in an area that has been affected by metamorphic alteration during the Ellesmerian Orogeny (Devonian–Early Carboniferous). The recent recovery of Small Carbonaceous Fossils (SCFs) to the south in areas that have escaped the effects...

Data from: Algal affinity and possible life cycle of the early Cambrian acritarch Yurtusia uniformis from South China

Xiaodong Shang, Pengju Liu, Małgorzata Moczydłowska & Ben Yang
Abundant, well-preserved specimens of spheroidal organic-walled microfossil Yurtusia uniformis are reported from the basal Cambrian Yanjiahe Formation in the Changyang area of Hubei Province, South China. Thin and hollow processes extend between the double walls of the vesicle. The single to multiple internal bodies within the vesicle cavity are observed in the genus for the first time, representing reproductive structures (dividing daughter cells). A small circular perforation may occur on the vesicle wall to release...

Supplemental materials of: Ignored biodiversity in acid soil islands in karst areas, South China: Impatiens longlinensis (Balsaminaceae), a new critically endangered species

Tian-Tian Xue, Chang-Ying Xia, Magnus Lidén, Wei-Bin Xu, Zhao-Cen Lu, Hai-Ling Chen, Shu-Wan Li & Sheng-Xiang Yu
The karst area in South China is notable for its fragile vegetation and unique flora with many narrow endemics, and is one of the most threatened biodiversity hotspots in the world. However, the biodiversity of acid soil areas scattered in the karst area have previously been underestimated. With a recent increase of new discoveries of plants and animals, the conservation of biodiversity in these acid soil areas has become urgent. This study deals with a...

Data from: Seasonality determines patterns of growth and age structure over a geographic gradient in an ectothermic vertebrate

Juha Merilä, Mårten B. Hjernquist, Fredrik Söderman, K. Ingemar Jönsson, Gábor Herczeg & Anssi Laurila
Environmental variation connected with sea- sonality is likely to affect the evolution of life-history strategies in ectotherms, but there is no consensus as to how important life-history traits like body size are influ- enced by environmental variation along seasonal gradients. We compared adult body size, skeletal growth, mean age, age at first reproduction and longevity among 11 common frog (Rana temporaria) populations sampled along a 1,600-km-long latitudinal gradient across Scandinavia. Mean age, age at first...

Data from: Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation

Alina K. Niskanen, Anna M. Billing, Håkon Holand, Ingerid J. Hagen, Yimen G. Araya-Ajoy, Arild Husby, Bernt Rønning, Ane Marlene Myhre, Peter Sjolte Ranke, Thomas Kvalnes, Henrik Pärn, Thor Harald Ringsby, Sigbjørn Lien, Bernt-Erik Sæther, Stefanie Muff & Henrik Jensen
Inbreeding may increase the extinction risk of small populations. Yet, studies using modern genomic tools to investigate inbreeding depression in nature have been limited to single populations, and little is known about the dynamics of inbreeding depression in subdivided populations over time. Natural populations often experience different environmental conditions and differ in demographic history and genetic composition; characteristics that can affect the severity of inbreeding depression. We utilised extensive long-term data on more than 3100...

Data from: Divergent selection on flowering phenology but not on floral morphology between two closely related orchids

Nina Sletvold, Elodie Chapurlat, Iris Le Roncé & Jon Ågren
Closely related species often differ in traits that influence reproductive success, suggesting that divergent selection on such traits contribute to the maintenance of species boundaries. Gymnadenia conopsea ss. and Gymnadenia densiflora are two closely related, perennial orchid species that differ in (1) floral traits important for pollination, including flowering phenology, floral display and spur length, and (2) dominant pollinators. If plant-pollinator interactions contribute to the maintenance of trait differences between these two taxa, we expect...

Impacts of speciation and extinction measured by an evolutionary decay clock

Jennifer Hoyal Cuthill, Nicholas Guttenberg & Graham Budd
The hypothesis that destructive mass extinctions enable creative evolutionary radiations (creative destruction) is central to classic concepts of macroevolution[1,2]. However, the relative impacts of extinction and radiation on the co-occurrence of species have not been directly quantitatively compared across the Phanerozoic eon. Here we apply machine learning to generate a spatial embedding (multidimensional ordination) of the temporal co-occurrence structure of the Phanerozoic fossil record, covering 1,273,254 occurrences in the Paleobiology Database for 171,231 embedded species....

The plot thickens: Haploid and triploid-like thalli, hybridization, and biased mating type ratios in Letharia

Sandra Lorena Ament-Velásquez, Veera Tuovinen, Linnea Bergström, Toby Spribille, Dan Vanderpool, Juri Nascimbene, Yoshikazu Yamamoto, Göran Thor & Hanna Johannesson
The study of the reproductive biology of lichen fungal symbionts has been traditionally challenging due to their complex and symbiotic lifestyles. Against the common belief of haploidy, a recent genomic study found a triploid-like signal in Letharia. Here, we used genomic data from a pure culture and from thalli, together with a PCR survey of the MAT locus, to infer the genome organization and reproduction in Letharia. We found that the read count variation in...

The role of evolutionary time, diversification rates and dispersal in determining the global diversity of a large radiation of passerine birds

Tianlong Cai, Shimiao Shao, Jonathan Kennedy, Per Alström, Robert Moyle, Yanhua Qu, Fumin Lei & Jon Fjeldså
Aim: Variation in species diversity among different geographic areas may result from differences in speciation and extinction rates, immigration and time for diversification. An area with high species diversity may be the result of a high net diversification rate, multiple immigration events from adjacent regions,anda long time available for the accumulation of species (know as the “time-for-speciation effect”). Here, we examine the relative importance of the three aforementionedprocesses in shaping the geographic diversity patterns of...

A revised subgeneric classification of the neotropical genus Zapoteca (Caesalpinioideae; Fabaceae)

Julia Ferm & Bertil Ståhl
The subgeneric classification of the neotropical legume genus Zapoteca is revised based on an analysis of the nuclear ETS and ITS, and the plastid trnL-trnF DNA-regions. Subgenus Ravenia is included in subg. Zapoteca, Z. quichoi is transferred from subg. Amazonica to subg. Zapoteca, Z. sousae is included in subg. Zapoteca and one new subgenus, subg. Subamazonica, is described to accommodate the species Z. filipes and Z. scutellifera. A key to the subgenera is presented.

Strong stabilizing selection on timing of germination in a Mediterranean population of Arabidopsis thaliana

Giulia Zacchello, Mariona Vinyeta & Jon Ågren
Premise Timing of germination can strongly influence plant fitness by affecting seedling survival and by having cascading effects on later life-history traits. In seasonal environments, the period favorable for seedling establishment and growth is limited, and timing of germination is likely to be under stabilizing selection because of conflicting selection through survival and fecundity. Moreover, optimal germination time may vary among genotypes because of inherent differences in later life-history traits. Methods To examine how germination...

Automation-Induced Reshoring: An Agent-based Model of the German Manufacturing Industry

Laura Merz
The agent-based perspective allows insights on how behaviour of firms, guided by simple economic rules on the micro-level, is dynamically influenced by a complex environment in regard to the assumed relocation, decision-making hypotheses. Testing various variables sensitive to initial conditions, increased environmental regulations targeting global trade and upward shifting wage levels in formerly offshore production locations have shown to be driving and inhibiting mechanisms of this socio-technical system. The dynamic demonstrates a shift from predominantly...

Data from: The effects of drift and selection on latitudinal genetic variation

Filip Thörn, Patrik Rödin-Mörch, Maria Cortazar-Chinarro, Alex Richter-Boix, Anssi Laurila & Jacob Höglund
Clinal variation is paramount for understanding the factors shaping genetic diversity in space and time. During the last glacial maximum, northern Europe was covered by glacial ice that rendered the region uninhabitable for most taxa. Different evolutionary processes during and after the recolonisation of this area from different glacial refugia have affected the genetic landscape of the present-day European flora and fauna. In this study, we focus on the common toad (Bufo bufo) in Sweden...

Reference allele frequencies for populations pools of Atlantic Herring (Clupea harengus)

Mats Pettersson & Leif Andersson
Atlantic herring is widespread in North Atlantic and adjacent waters and is one of the most abundant vertebrates on earth. This species is well suited to explore genetic adaptation due to minute genetic differentiation at selectively neutral loci. Here we report hundreds of loci underlying ecological adaptation to different geographic areas and spawning conditions. Four of these represent megabase inversions confirmed by long read sequencing. The genetic architecture underlying ecological adaptation in herring deviates from...

Environmental drivers of Sphagnum growth in peatlands across the Holarctic region

Fia Bengtsson, Håkan Rydin, Jennifer Baltzer, Luca Bragazza, Zhao-Jun Bu, Simon Caporn, Ellen Dorrepaal, Kjell Ivar Flatberg, Olga Galanina, Mariusz Gałka, Anna Ganeva, Irina Goia, Nadezhda Goncharova, Michal Hajek, Akira Haraguchi, Lorna Harris, Elyn Humphreys, Martin Jiroušek, Katarzyna Kajukało, Edgar Karofeld, Natalia Koronatova, Natalia Kosykh, Anna Laine, Mariusz Lamentowicz, Elena Lapshina … & Richard J. Payne
The relative importance of global versus local environmental factors for growth and thus carbon uptake of the bryophyte genus Sphagnum – the main peat-former and ecosystem engineer in northern peatlands – remains unclear. 2) We measured length growth and net primary production (NPP) of two abundant Sphagnum species across 99 Holarctic peatlands. We tested the importance of previously proposed abiotic and biotic drivers for peatland carbon uptake (climate, N deposition, water table depth, and vascular...

Registration Year

  • 2020

Resource Types

  • Dataset
  • Software
  • Text


  • Uppsala University
  • University of Copenhagen
  • University of East Anglia
  • University of Cambridge
  • University of Alberta
  • University of Lausanne
  • University of Alaska Fairbanks
  • McGill University
  • Grenoble Alpes University
  • Swedish University of Agricultural Sciences