9 Works

Data from: Seasonal variation in male alternative reproductive tactics

Melanie J. Monroe, Trond Amundsen, Anne Christine Utne Palm, Kenyon B. Mobley & A. C. Utne-Palm
Genetic parentage analyses reveal considerable diversity in alternative reproductive behaviours (e.g. sneaking) in many taxa. However, little is known about whether these behaviours vary seasonally and between populations. Here, we investigate seasonal variation in male reproductive behaviours in a population of two-spotted gobies (Gobiusculus flavescens) in Norway. Male two-spotted gobies guard nests, attract females and care for fertilized eggs. We collected clutches and nest-guarding males early and late in the breeding season in artificial nests...

Data from: Bryophyte traits explain climate-warming effects on tree seedling establishment

Signe Lett, Marie-Charlotte Nilsson, David A. Wardle & Ellen Dorrepaal
Above the alpine tree line, bryophytes cover much of the tundra soil surface in dense, often monospecific carpets. Therefore, when climate warming enables tree seedling establishment above the tree line, interaction with the bryophyte layer is inevitable. Bryophytes are known to modify their environment in various ways. However, little is known about to which extent and by which mechanisms bryophytes affect the response of tree seedlings to climate warming. We aimed to assess and understand...

Data from: Short-term climate change manipulation effects do not scale up to long-term legacies: effects of an absent snow cover on boreal forest plants

Gesche Blume-Werry, Juergen Kreyling, Hjalmar Laudon & Ann Milbau
1. Despite time lags and non-linearity in ecological processes, the majority of our knowledge about ecosystem responses to long-term changes in climate originates from relatively short-term experiments. 2. We utilized the longest ongoing snow removal experiment in the world and an additional set of new plots at the same location in northern Sweden to simultaneously measure the effects of long-term (11 winters) and short-term (1 winter) absence of snow cover on boreal forest understorey plants,...

Data from: Combining citizen science species distribution models and stable isotopes reveals migratory connectivity in the secretive Virginia rail

Auriel M. V. Fournier, Alexis R. Sullivan, Joseph K. Bump, Marie Perkins, Mark C. Shieldcastle & Sammy L. King
Stable hydrogen isotope (δD) methods for tracking animal movement are widely used yet often produce low resolution assignments. Incorporating prior knowledge of abundance, distribution or movement patterns can ameliorate this limitation, but data are lacking for most species. We demonstrate how observations reported by citizen scientists can be used to develop robust estimates of species distributions and to constrain δD assignments. We developed a Bayesian framework to refine isotopic estimates of migrant animal origins conditional...

Data from: 28 year temporal sequence of epidemic dynamics in a natural rust – host plant metapopulation

Lars Ericson, Warren J. Müller & Jeremy J. Burdon
A long-term study of disease dynamics caused by the rust Uromyces valerianae in 31 discrete populations of Valeriana salina provides a rare opportunity to explore extended temporal patterns in the epidemiology of a natural host-pathogen metapopulation. Over a 28-year period, pathogen population dynamics varied across the metapopulation with disease incidence (presence/absence), prevalence (% plants infected) and severity (% leaf area covered by lesions) all showing strong population and year effects, indicative of heterogeneity among years...

Data from: Root heterogeneity along an arctic elevational gradient: the importance of resolution

Sabrina Träger & Scott D. Wilson
Spatial heterogeneity affects plant performance and is influenced by plants, but the scale at which fine roots react to or generate spatial heterogeneity has received little attention. Fine roots might be expected to respond to heterogeneity at a scale comparable to their diameter (mm), but studies to date have been conducted at much coarser resolutions (cm – m). Here we quantify root heterogeneity in contrasting habitats with special attention to the influence of resolution. We...

Data from: Geographic variation and trade-offs in parasitoid virulence

Lisa Fors, Robert Markus, Ulrich Theopold, Lars Ericson & Peter A. Hambäck
Host–parasitoid systems are characterized by a continuous development of new defence strategies in hosts and counter-defence mechanisms in parasitoids. This co-evolutionary arms race makes host–parasitoid systems excellent for understanding trade-offs in host use caused by evolutionary changes in host immune responses and parasitoid virulence. However, knowledge obtained from natural host–parasitoid systems on such trade-offs is still limited. In this study, the aim was to examine trade-offs in parasitoid virulence in Asecodes parviclava (Hymenoptera: Eulophidae) when...

Data from: A test for within-lake niche differentiation in the nine-spined sticklebacks (Pungitius pungitius)

Federico C. F. Calboli, Pär Byström & Juha Merilä
Specialization for the use of different resources can lead to ecological speciation. Accordingly, there are numerous examples of ecologically specialized pairs of fish “species” in postglacial lakes. Using a polymorphic panel of single nucleotide variants, we tested for genetic footprints of within-lake population stratification in nine-spined sticklebacks (Pungitius pungitius) collected from three habitats (viz. littoral, benthic, and pelagic) within a northern Swedish lake. Analyses of admixture, population structure, and relatedness all supported the conclusion that...

Data from: Whole genome duplication in coast redwood (Sequoia sempervirens) and its implications for explaining the rarity of polyploidy in conifers

Alison Dawn Scott, Noah W. M. Stenz, Pär K. Ingvarsson & David A. Baum
Polyploidy is common and an important evolutionary factor in most land plant lineages, but it is rare in gymnosperms. Coast redwood (Sequoia sempervirens) is one of just two polyploid conifer species and the only hexaploid. Evidence from fossil guard cell size suggests that polyploidy in Sequoia dates to the Eocene. Numerous hypotheses about the mechanism of polyploidy and parental genome donors have been proposed, based primarily on morphological and cytological data, but it remains unclear...

Registration Year

  • 2016

Resource Types

  • Dataset


  • Umeå University
  • Swedish University of Agricultural Sciences
  • Michigan Technological University
  • Research Institute for Nature and Forest
  • University of Nottingham
  • University of Wisconsin-Madison
  • University of Regina
  • Commonwealth Scientific and Industrial Research Organisation
  • University of Bergen
  • University of Helsinki