58 Works

Data from: Patterns of cross-resistance and collateral sensitivity between clinical antibiotics and natural antimicrobials

Abigail L. Colclough, Jukka Corander, Samuel Sheppard, Sion Bayliss, Michiel Vos, Abigail Colclough, Samuel K. Sheppard & Sion C. Bayliss
Bacteria interact with a multitude of other organisms, many of which produce antimicrobials. Selection for resistance to these antimicrobials has the potential to result in resistance to clinical antibiotics when active compounds target the same bacterial pathways. The possibility of such cross-resistance between natural antimicrobials and antibiotics has to our knowledge received very little attention. The antimicrobial activity of extracts from seaweeds, known to be prolific producers of antimicrobials, is here tested against Staphylococcus aureus...

Data from: Ecology determines how low antibiotic concentration impacts community composition and horizontal transfer of resistance genes

Johannes Cairns, Lasse Ruokolainen, Jenni Hultman, Manu Tamminen, Marko Virta & Teppo Hiltunen
Low concentrations of antibiotics have numerous effects on bacteria. However, it is unknown whether ecological factors such as trophic interactions and spatial structuring influence the effects of low concentrations of antibiotics on multispecies microbial communities. Here, we address this question by investigating the effects of low antibiotic concentration on community composition and horizontal transfer of an antibiotic resistance plasmid in a 62-strain bacterial community in response to manipulation of the spatial environment and presence of...

Data from: High resistance towards herbivore-induced habitat change in a high arctic arthropod community

Niels M. Schmidt, Jesper B. Mosbacher, Bernhard Eitzinger, Eero J. Vesterinen & Tomas Roslin
Mammal herbivores may exert strong impacts on plant communities, and are often key drivers of vegetation composition and diversity. We tested whether such mammal-induced changes to a high Arctic plant community are reflected in the structure of other trophic levels. Specifically, we tested whether substantial vegetation changes following the experimental exclusion of muskoxen (Ovibos moschatus) altered the composition of the arthropod community and the predator-prey interactions therein. Overall, we found no impact of muskox-exclusion on...

Data from: Evolution at two time frames: polymorphisms from an ancient singular divergence event fuel contemporary parallel evolution

Steven M. Van Belleghem, Carl Vangestel, Katrien De Wolf, Zoë De Corte, Markus Möst, Pasi Rastas, Luc De Meester & Frederik Hendrickx
When environments change, populations may adapt surprisingly fast, repeatedly and even at microgeographic scales. There is increasing evidence that such cases of rapid parallel evolution are fueled by standing genetic variation, but the source of this genetic variation remains poorly understood. In the saltmarsh beetle Pogonus chalceus, short-winged ‘tidal’ and long-winged ‘seasonal’ ecotypes have diverged in response to contrasting hydrological regimes and can be repeatedly found along the Atlantic European coast. By analyzing genomic variation...

Data from: A plant pathogen modulates the effects of secondary metabolites on the performance and immune function of an insect herbivore

Elena Rosa, Luisa Woestmann, Arjen Biere & Marjo Saastamoinen
Host plant chemical composition critically shapes the performance of insect herbivores feeding on them. Some insects have become specialized on plant secondary metabolites, and even use them to their own advantage such as defense against predators. However, infection by plant pathogens can seriously alter the interaction between herbivores and their host plants. We tested whether the effects of the plant secondary metabolites, iridoid glycosides (IGs), on the performance and immune response of an insect herbivore...

Data from: Silk properties and overwinter survival in gregarious butterfly larvae

Anne Duplouy, Guillaume Minard, Meri Lähteenaro, Susu Rytteri & Marjo Saastamoinen
All organisms are challenged by encounters with parasites, which strongly select for efficient escape strategies in the host. The threat is especially high for gregarious species entering immobile periods, such as diapause. Larvae of the Glanville fritillary butterfly, Melitaea cinxia, spend the winter in diapause in groups of conspecifics each sheltered in a silk-nest. Despite intensive monitoring of the population, we have little understanding of the ecological factors influencing larval survival over the winter in...

Data from: Platichthys solemdali sp. nov. (Actinopterygii, Pleuronectiformes): a new flounder species from the Baltic Sea

Paolo Momigliano, Gaël P.J. Denys, Henri Jokinen & Juha Merilä
The European flounders Platichthys flesus (Linnaeus, 1758) displays two contrasting reproductive behaviors in the Baltic Sea: offshore spawning of pelagic eggs and coastal spawning of demersal eggs, a behavior observed exclusively in the Baltic Sea. Previous studies showed marked differences in behavioral, physiological, and life-history traits of flounders with pelagic and demersal eggs. Furthermore, a recent study demonstrated that flounders with pelagic and demersal eggs represent two reproductively isolated, parapatric species arising from two distinct...

Data from: Black Queen evolution and trophic interactions determine plasmid survival after the disruption of conjugation network

Johannes Cairns, Katariina Koskinen, Reetta Penttinen, Tommi Patinen, Anna Hartikainen, Roosa Jokela, Liisa Ruusulehto, Sirja Viitamäki, Sari Mattila, Teppo Hiltunen & Matti Jalasvuori
Mobile genetic elements such as conjugative plasmids are responsible for antibiotic resistant phenotypes in many bacterial pathogens. The ability to conjugate, the presence of antibiotics and ecological interactions all have a notable role in the persistence of plasmids in bacterial populations. Here, we set out to investigate the contribution of these factors when the conjugation network was disturbed by a plasmid-dependent bacteriophage. Phage alone effectively caused the population to lose plasmids, thus rendering them susceptible...

Data from: Association mapping reveals candidate loci for resistance and anemic response to an emerging temperature-driven parasitic disease in a wild salmonid fish

Freed Ahmad, Paul Debes, Gemma Palomar & Anti Vasemägi
Even though parasitic infections are often costly or deadly for the host, we know very little which genes influence parasite susceptibility and disease severity. Proliferative kidney disease (PKD) is an emerging and, at elevated water temperatures, potentially deadly disease of salmonid fishes that is caused by the myxozoan parasite Tetracapsuloides bryosalmonae. By screening > 7.6 K SNPs in 255 wild brown trout (Salmo trutta) and combining association mapping and random forest approaches, we identified several...

Data from: Give me a sample of air and I will tell which species are found from your region – molecular identification of fungi from airborne spore samples

Nerea Abrego, Veera Norros, Panu Halme, Panu Somervuo, Heini Ali-Kovero & Otso Ovaskainen
Fungi are a megadiverse group of organisms, they play major roles in ecosystem functioning, and are important for human health, food production, and nature conservation. Our knowledge on fungal diversity and fungal ecology is however still very limited, in part because surveying and identifying fungi is time demanding and requires expert knowledge. We present a method that allows anyone to generate a list of fungal species likely to occur in a region of interest, with...

Data from: From feces to data: a metabarcoding method for analyzing consumed and available prey in a bird-insect food web

Seppo Rytkönen, Eero J. Vesterinen, Coen Westerduin, Tiina Leviäkangas, Emma Vatka, Marko Mutanen, Panu Välimäki, Markku Hukkanen, Marko Suokas & Markku Orell
Diets play a key role in understanding trophic interactions. Knowing the actual structure of food webs contributes greatly to our understanding of biodiversity and ecosystem functioning. The research of prey preferences of different predators requires knowledge not only of the prey consumed, but also of what is available. In this study, we applied DNA metabarcoding to analyze the diet of 4 bird species (willow tits Poecile montanus, Siberian tits Poecile cinctus, great tits Parus major...

Data from: Frequency of virus-resistant hosts determines experimental community dynamics

Sebastian Coloma, Ursula Gaedke, Kaarina Sivonen & Teppo Hiltunen
Parasites, such as bacterial viruses (phages), can have large effects on host populations both at the ecological and evolutionary levels. In the case of cyanobacteria, phages can reduce primary production and infected hosts release intracellular nutrients influencing planktonic food web structure, community dynamics and biogeochemical cycles. Cyanophages may be of great importance in aquatic food webs during large cyanobacterial blooms unless the host population becomes resistant to phage infection. The consequences on plankton community dynamics...

Data from: Environmental and genetic control of cold tolerance in the Glanville fritillary butterfly

Maaike A. De Jong & Marjo Saastamoinen
Thermal tolerance has a major effect on individual fitness and species distributions, and can be determined by genetic variation as well as phenotypic plasticity. We investigate the effects of developmental and adult thermal conditions on cold tolerance, measured as chill coma recovery (CCR) time, during the early and late adult stage in the Glanville fritillary butterfly. We also investigate the genetic basis of cold tolerance by associating CCR variation with polymorphisms in candidate genes that...

Data from: Return to work after ischemic stroke in young adults: a registry-based follow-up study

Karoliina Aarnio, Jorge Rodriguez-Pardo, Bob Siegerink, Juliane Hardt, Jenna Broman, Lauri Tulkki, Elena Haapaniemi, Markku Kaste, Turgut Tatlisumak & Jukka Putaala
Objective: We aimed to investigate the proportion of young patients not returning to work (NRTW) at one year after ischemic stroke (IS) and during follow-up, and clinical factors associated with NRTW. Methods: Patients from Helsinki Young Stroke Registry with an IS occurring in the years 1994-2007, who were at paid employment within one year before IS, and with National Institutes of Health Stroke Scale (NIHSS) score ≤15 points at hospital discharge, were included. Data on...

Data from: Frequency and distribution of 152 genetic disease variants in over 100,000 mixed breed and purebred dogs

Jonas Donner, Heidi Anderson, Stephen Davison, Angela M. Hughes, Julia Bouirmane, Johan Lindqvist, Katherine M. Lytle, Balasubramanian Ganesan, Claudia Ottka, Päivi Ruotanen, Maria Kaukonen, Oliver P. Forman, Neale Fretwell, Cynthia A. Cole & Hannes Lohi
Knowledge on the genetic epidemiology of disorders in the dog population has implications for both veterinary medicine and sustainable breeding. Limited data on frequencies of genetic disease variants across breeds exists, and the disease heritage of mixed breed dogs remains poorly explored to date. Advances in genetic screening technologies now enable comprehensive investigations of the canine disease heritage, and generate health-related big data that can be turned into action. We pursued population screening of genetic...

Data from: Stream diatoms exhibit weak niche conservation along global environmental and climatic gradients

Janne Soininen, Aurelien Jamoneau, Juliette Tison-Rosebery, Thibault Leboucher, Jianjun Wang, Mikolaj Kokocinski & Sophia I. Passy
Niche conservatism (NC) describes the scenario in which species retain similar characteristics or traits over time and space, and thus has potentially important implications for understanding their biogeographic distributions. Evidence consistent with NC includes similar niche properties across geographically distant regions. We investigated whether NC was evident in stream diatom morphospecies by modeling species responses to environmental and climatic variables in a set of calibration sites (from the US) and then evaluated the models with...

Data from: Genomic signatures of fine‐scale local selection in Atlantic salmon suggest involvement of sexual maturation, energy homeostasis, and immune defence‐related genes

Victoria L. Pritchard, Hannu Mäkinen, Juha-Pekka Vähä, Jaakko Erkinaro, Panu Orell & Craig R. Primmer
Elucidating the genetic basis of adaptation to the local environment can improve our understanding of how the diversity of life has evolved. In this study we used a dense SNP array to identify candidate loci potentially underlying fine-scale local adaptation within a large Atlantic salmon (Salmo salar) population. By combining outlier, gene–environment association, and haplotype homozygosity analyses, we identified multiple regions of the genome with strong evidence for diversifying selection. Several of these candidate regions...

Data from: Statistical forecasting of current and future circum-Arctic ground temperatures and active layer thickness

Juha Aalto, Olli Karjalainen, Jan Hjort & Miska Luoto
Mean annual ground temperature (MAGT) and active layer thickness (ALT) are key to understanding the evolution of the ground thermal state across the Arctic under climate change. Here a statistical modeling approach is presented to forecast current and future circum-Arctic MAGT and ALT in relation to climatic and local environmental factors, at spatial scales unreachable with contemporary transient modeling. After deploying an ensemble of multiple statistical techniques, distance-blocked cross-validation between observations and predictions suggested excellent...

Data from: Boreal tree growth exhibits decadal-scale ecological memory to drought and insect defoliation, but no negative response to their interaction

Malcolm S. Itter, L D'Orangeville, Andria Dawson, Daniel Kneeshaw, Louis Duchesne & Andrew O. Finley
1. Interactions between drought and insect defoliation may dramatically alter forest function under novel climate and disturbance regimes, but remain poorly understood. We empirically tested two important hypotheses regarding tree responses to drought and insect defoliation: 1) trees exhibit delayed, persistent, and cumulative growth responses to these stressors; 2) physiological feedbacks in tree responses to these stressors exacerbate their impacts on tree growth. These hypotheses remain largely untested at a landscape scale, yet are critical...

Data from: Construction and characterization of synthetic bacterial community for experimental ecology and evolution

Johannes Cairns, Roosa Jokela, Jenni Hultman, Manu Tamminen, Marko Virta & Teppo Hiltunen
Experimental microbial ecology and evolution have yielded foundational insights into ecological and evolutionary processes using simple microcosm setups and phenotypic assays with one- or two-species model systems. The fields are now increasingly incorporating more complex systems and exploration of the molecular basis of observations. For this purpose, simplified, manageable and well-defined multispecies model systems are required that can be easily investigated using culturing and high-throughput sequencing approaches, bridging the gap between simpler and more complex...

Data from: The EGA+GNM framework: an integrative approach to modelling behavioural syndromes

Jordan S. Martin, Jorg J. M. Massen, Vedrana Šlipogor, Thomas Bugnyar, Adrian V. Jaeggi & Sonja E. Koski
1. Behavioural syndromes refer to correlated suites of behavioural traits exhibiting consistent among-individual variation, i.e. personality. Factor analysis (FA) is currently the dominant method for modelling behavioural syndromes in humans and animals. Although FA is useful for inferring the latent causes underlying trait correlations, it does not account for pairwise behavioural interactions that also contribute to syndrome structure. Given that latent factors and pairwise interactions are likely ubiquitous causes of trait covariation, both should be...

Data from: Spatial and temporal patterns of nest distribution influences sexual selection in a marine fish

Bob B.M. Wong, Topi K. Lehtonen, Kai Lindström & Bob B. M. Wong
In many species, the natural distribution of material resources important for reproduction can profoundly impact reproductive success among individuals and, hence, the opportunity and intensity of sexual selection. Here, we report on a field-based experiment investigating the effects of nest aggregation on sexual selection in a fish, the sand goby (Pomatoschistus minutus). We found that the distribution of potential nests (sparse versus aggregated nest treatments) affected patterns of nest colonization and reproductive success. Specifically, in...

Data from: Reciprocal facilitation between large herbivores and ants in a semi-arid grassland

Xiaofei Li, Zhiwei Zhong, Dirk Sanders, Chris Smit, Deli Wang, Petri Nummi, Yu Zhu, Ling Wang, Hui Zhu, Nazim Hassan & Christian Smit
While positive interactions have been well documented in plant and sessile benthic marine communities, their role in structuring mobile animal communities and underlying mechanisms has been less explored. Using field removal experiments, we demonstrated that a large vertebrate herbivore (cattle; Bos tarurs) and a much smaller invertebrate (ants; Lasius spp.), the two dominant animal taxa in a semi-arid grassland in Northeast China, facilitate each other. Cattle grazing led to higher ant mound abundance compared to...

Data from: Life‐history correlations change under coinfection leading to higher pathogen load

Anna-Liisa Laine & Hannu Mäkinen
The ability of a parasite strain to establish and grow on its host may be drastically altered by simultaneous infection by other parasite strains. However, we still lack an understanding of how life‐history allocations may change under coinfection, although life‐history correlations are a critical mechanism restricting the evolutionary potential and epidemiological dynamics of pathogens. Here, we study how life‐history stages and their correlations change in the obligate fungal pathogen Podosphaera plantaginis under single infection and...

Data from: Increased fluctuation in a butterfly metapopulation leads to diploid males and decline of a hyperparasitoid

Abhilash Nair, Etsuko Nonaka & Saskya Van Nouhuys
Climate change can increase spatial synchrony of population dynamics, leading to large-scale fluctuation that destabilizes communities. High trophic level species such as parasitoids are disproportionally affected because they depend on unstable resources. Most parasitoid wasps have complementary sex determination, producing sterile males when inbred, which can theoretically lead to population extinction via the diploid male vortex. We examined this process empirically using a hyperparasitoid population inhabiting a spatially structured host population in a large fragmented...

Registration Year

  • 2018

Resource Types

  • Dataset


  • University of Helsinki
  • University of Turku
  • Natural Resources Institute Finland
  • Swedish University of Agricultural Sciences
  • University of Oulu
  • Uppsala University
  • Aarhus University
  • University of Cambridge
  • Helsinki University Central Hospital
  • Chinese Academy of Sciences