16 Works

Data from: Landscape genetic analysis suggests stronger effects of past than current landscape structure on genetic patterns of Primula veris

Iris Reinula, Sabrina Träger, Ignacio M. Hernández-Agramonte, Aveliina Helm & Tsipe Aavik
This dataset contains genetic and landscape data of 19 Primula veris populations in Muhu and Saaremaa islands in Estonia. Genetic samples were collected in 2015 and 2016. Landscape data was extracted from maps dated 2016 and 2017 for current data and 1930s for historical data. Data is divided to node- and link-based data. Node-based data contains genetic diversity data of the P. veris populations and landscape data in circular buffers surrounding the populations. Link-based data...

Competitiveness prediction for nodule colonization in Sinorhizobium meliloti through combined in vitro tagged strain characterization and genome-wide association analysis

Agnese Bellabarba, G. Bacci, F. Decorosi, E. Aun, E. Azzarello, M. Remm, L. Giovannetti, C. Viti, A. Mengoni & F. Pini
Associations between leguminous plants and symbiotic nitrogen-fixing rhizobia are a classic example of mutualism between a eukaryotic host and a specific group of prokaryotic microbes. Although this symbiosis is in part species-specific, different rhizobial strains may colonise the same nodule. Some rhizobial strains are commonly known as better competitors than others, but detailed analyses that aim to predict rhizobial competitive abilities based on genomes are still scarce. Here, we performed a bacterial genome-wide association (GWAS)...

Saprotrophic fungal diversity predicts ectomycorrhizal fungal diversity along the timberline in the framework of island biogeography theory

Teng Yang, Leho Tedersoo, Xiao Fu, Chang Zhao, Xu Liu, Guifeng Gao, Liang Cheng, Jonathan M. Adams & Haiyan Chu
In the context of a timberline tree species (Betula ermanii) as “virtual island”, we surveyed ectomycorrhizal (EcM) fungal diversity along a 430-m vertical gradient on the top of Changbai Mountain, China, sampling fine roots and neighboring soils of B. ermanii. Besides elevation, soil properties and plant functional traits, endophytic and saprotrophic fungal diversity were assessed as candidate predictors to construct integrative models. EcM fungal diversity decreased with increasing elevation, and exhibited positive diversity to diameter...

Parental age does not influence offspring telomeres during early life in common gulls (Larus canus)

Tuul Sepp, Richard Meitern, Britt Heidinger, Kristina Noreikiene, Kalev Rattiste, Peeter Hõrak, Lauri Saks, Jeffrey Kittilson, Janek Urvik & Mathieu Giraudeau
Parental age can affect offspring telomere length through heritable and epigenetic-like effects, but at what stage during development these effects are established is not well known. To address this, we conducted a cross-fostering experiment in common gulls (Larus canus) that enabled us distinguish between pre- and post-natal parental age effects on offspring telomere length. Whole clutches were exchanged after clutch completion within and between parental age classes (young and old) and blood samples were collected...

Phototactic choices of Drosophila melanogaster

Indrikis Krams, Tatjana Krama, Ronalds Krams, Giedrius Trakimas, Sergejs Popovs, Priit Jõers, Maris Munkevics, Didzis Elferts, Markus Rantala, Janis Makna & Benjamin De Bivort
When organisms' environmental conditions vary unpredictably in time, it can be advantageous for individuals to hedge their phenotypic bets. It has been shown that a bet-hedging strategy underlies the high inter-individual diversity of phototactic choice in Drosophila melanogaster. This study shows that fruit flies from a population living in a boreal and relatively unpredictable climate had more variable phototactic choices than fruit flies from a more stable tropical climate, consistent with bet-hedging theory. We experimentally...

Disentangling temporal food web dynamics facilitates understanding of ecosystem functioning

Susanne Kortsch, Romain Frelat, Laurene Pecuchet, Pierre Olivier, Ivars Putnis, Erik Bonsdorff, Henn Ojaveer, Iveta Jurgensone, Solvita Strāķe, Gunta Rubene, Ēriks Krūze & Marie C. Nordström
Studying how food web structure and function varies through time represents an opportunity to better comprehend and anticipate ecosystem changes. Yet, temporal studies of highly resolved food web structure are scarce. With few exceptions, most temporal food web studies are either too simplified, preventing a detailed assessment of structural properties, or binary, missing the temporal dynamics of energy fluxes among species. Using long-term, multi-trophic biomass data coupled with highly resolved information on species feeding relationships,...

Data from: Wintering bird communities are tracking climate change faster than breeding communities

Aleksi Lehikoinen, Åke Lindström, Andrea Santangeli, Päivi Sirkiä, Lluis Brotons, Vincent Devictor, Jaanus Elts, Ruud P. B. Fobben, Henning Heldbjerg, Sergi Herrando, Marc Herremans, Marie-Anne R. Hudson, Frederic Jiguet, Alison Johnston, Romain Lorrilliere, Emma-Liina Marjakangas, Nicole L. Michel, Charlotte M. Moshøj, Renno Nellis, Jean-Yves Paquet, Adam C. Smith, Tibor Szep & Chris Van Turnhout
1. Global climate change is driving species’ distributions towards the poles and mountain tops during both non-breeding and breeding seasons, leading to changes in the composition of natural communities. However, the degree of season differences in climate-driven community shifts has not been thoroughly investigated at large spatial scales. 2. We compared the rates of change in the community composition during both winter (non-breeding season) and summer (breeding) and their relation to temperature changes. 3. Based...

Supplement to: Global impact of the COVID-19 pandemic on stroke care and intravenous thrombolysis

Raul Nogueira, Muhammed Qureshi, Mohamad Abdalkader, Sheila Martins, Hiroshi Yamagami, Zhongming Qiu, Ossama Mansour, Anvitha Sathya, Anna Czlonkowska, Georgios Tsivgoulis, Diana Aguiar De Sousa, Jelle Demeestere, Robert Mikulik, Peter Vanacker, James Siegler, Janika Korv, Jose Biller, Conrad Liang, Navdeep Sangha, Alicia Zha, Alexandra Czap, Christine Holmstedt, Tanya Turan, George Ntaios, Konark Malhotra … & Thanh Nguyen
Objective: The objectives of this study were to measure the global impact of the pandemic on the volumes for intravenous thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with two control 4-month periods. Methods: We conducted a cross-sectional, observational, retrospective study across 6 continents, 70 countries, and 457 stroke centers. Diagnoses were identified by their ICD-10 codes and/or classifications in...

Data from: Timing of spring departure of long distance migrants correlates with previous year's conditions at their breeding site

Françoise Amélineau, Nicolas Delbart, Philipp Schwemmer, Riho Marja, Jérôme Fort, Stefan Garthe, Jaanus Elts, Philippe Delaporte, Pierre Rousseau, Françoise Duraffour & Pierrick Bocher
Precise timing of the migration is crucial for animals targeting seasonal resources at locations encountered across their annual cycle. Upon departure, long distance migrants need to anticipate unknown environmental conditions at their arrival site, and they do zkzdsxso with their internal annual clock. Here, we tested the hypothesis that long distance migrants synchronize their circannual clock according to the phenology of their environment during the breeding season, and therefore adjust their spring departure date according...

High blood parasite infection rate and low fitness suggest ecological traps for pied flycatchers breeding near forest water-bodies

Indrikis Krams
Blood parasites are considered to have strong negative effects on host fitness. There is some evidence that suggests that negative fitness consequences may be associated with the proximity to the areas where blood parasite vectors reproduce. This study tested for relationships between haemosporidian infection prevalence and parasitemia of breeding pied flycatchers (Ficedula hypoleuca) and their fitness parameters at different distances from forest water bodies. Prevalence and parasitemias (the intensity of infection) of haemosporidians generally decreased...

Data from: Context matters: the landscape matrix determines the population genetic structure of temperate forest herbs across Europe

Tobias Naaf, Jannis Till Feigs, Siyu Huang, Jörg Brunet, Sara A. O. Cousins, Guillaume Decocq, Pieter De Frenne, Martin Diekmann, Sanne Govaert, Per-Ola Hedwall, Jonathan Lenoir, Jaan Liira, Camille Meeussen, Jan Plue, Pieter Vangansbeke, Thomas Vanneste, Kris Verheyen, Stephanie I. J. Holzhauer & Katja Kramp
Context. Plant populations in agricultural landscapes are mostly fragmented and their functional connectivity often depends on seed and pollen dispersal by animals. However, little is known about how the interactions of seed and pollen dispersers with the agricultural matrix translate into gene flow among plant populations. Objectives. We aimed to identify effects of the landscape structure on the genetic diversity within, and the genetic differentiation among, spatially isolated populations of three temperate forest herbs. We...

Data from: Sensitivity to habitat fragmentation across European landscapes in three temperate forest herbs

Tobias Naaf, Jannis Till Feigs, Siyu Huang, Jörg Brunet, Sara A. O. Cousins, Guillaume Decocq, Pieter De Frenne, Martin Diekmann, Sanne Govaert, Per-Ola Hedwall, Kenny Helsen, Jonathan Lenoir, Jaan Liira, Camille Meeussen, Jan Plue, Pedro Poli, Fabien Spicher, Pieter Vangansbeke, Thomas Vanneste, Kris Verheyen, Stephanie I. J. Holzhauer & Katja Kramp
Context. Evidence for effects of habitat loss and fragmentation on the viability of temperate forest herb populations in agricultural landscapes is so far based on population genetic studies of single species in single landscapes. However, forest herbs differ in their life histories, and landscapes have different environments, structures and histories, making generalizations difficult. Objectives. We compare the response of three slow-colonizing forest herbs to habitat loss and fragmentation and set this in relation to differences...

Opposing community assembly patterns for dominant and non-dominant plant species in herbaceous ecosystems globally

Carlos Alberto Arnillas, Elizabeth Borer, Eric Seabloom, Juan Alberti, Selene Baez, Jonathon Bakker, Elizabeth Boughton, Yvonne Buckley, Miguel Bugalho, Ian Donohue, John Dwyer, Jennifer Firn, Riley Gridzak, Nicole Hagenah, Yann Hautier, Aveliina Helm, Anke Jentsch, , Kimberly Komatsu, Lauri Laanisto, Ramesh Laungani, Rebecca McCulley, Joslin Moore, John Morgan, Pablo Peri … & Marc Cadotte
Biotic and abiotic factors interact with dominant plants —the locally most frequent or with the largest coverage— and non-dominant plants differently, partially because dominant plants modify the environment where non-dominant plants grow. For instance, if dominant plants compete strongly, they will deplete most resources, forcing non-dominant plants into a narrower niche space. Conversely, if dominant plants are constrained by the environment, they might not exhaust available resources but instead may ameliorate environmental stressors that usually...

Major population splits coincide with episodes of rapid climate change in a forest-dependent bird

Vera-Maria Warmuth, Malcolm Burgess, Marko Mägi, Toni Laaksonen, Andrea Manica, Andreas Nord, Craig Primmer, Glenn-Peter Sætre, Wolfgang Winkel & Hans Ellegren
Climate change influences population demography by altering patterns of gene flow and reproductive isolation. Direct mutation rates offer the possibility for accurate dating on the within-species level but are currently only available for a handful of vertebrate species. Here, we use the first directly estimated mutation rate in birds to study the evolutionary history of pied flycatchers (Ficedula hypoleuca). Using a combination of demographic inference and environmental niche modelling, we show that all major population...

Exposure to artificial light at night alters innate immune response in wild great tit nestlings

Ann-Kathrin Ziegler, Watson Hannah, Hegemann Arne, Meitern Richard, Canoine Virginie, Nilsson Jan-Åke & Isaksson Caroline
The large-scale impact of urbanization on wildlife is rather well documented; however, the mechanisms underlying the effects of urban environments on animal physiology and behaviour are still poorly understood. Here, we focused on one major urban pollutant - artificial light at night (ALAN) - and its effects on the capacity to mount an innate immune response in wild great tit (Parus major) nestlings. Exposure to ALAN alters circadian rhythms of physiological processes, by disrupting the...

Small RNA expression and miRNA modification dynamics in human oocytes and early embryos

Pauliina Paloviita, Christel Hydén-Granskog, Juha S. Tapanainen, Timo Tuuri & Sanna Vuoristo
Small non-coding RNAs (sRNAs) play important roles during the oocyte-to-embryo transition (OET), when the maternal phenotype is reprogrammed, and the embryo genome is gradually activated. The transcriptional program driving early human development has been studied with the focus mainly on protein-coding RNAs, and expression dynamics of sRNAs remains largely unexplored. We profiled sRNAs in human oocytes and early embryos using an RNA-sequencing (RNA-seq) method suitable for low inputs of material. We show that OET in...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of Tartu
  • Lund University
  • Ghent University
  • Estonian University of Life Sciences
  • University of Picardie Jules Verne
  • Leibniz Centre for Agricultural Landscape Research
  • Swedish University of Agricultural Sciences
  • University of Bremen
  • Stockholm University
  • Helmholtz Centre for Environmental Research