25 Works

Analyzing indoor mycobiomes through a large-scale citizen science study in Norway

Pedro M. Martin-Sanchez, Eva-Lena F. Estensmo, Luis N. Morgado, Sundy Maurice, Ingeborg B. Engh, Inger Skrede & Håvard Kauserud
In the built environment, fungi can cause important deterioration of building materials and adverse health effects for the occupants. Increased knowledge about indoor mycobiomes from different regions of the world, and their main environmental determinants, will enable improved indoor air quality management and identification of health risks. This is the first citizen science study about indoor mycobiomes at a large geographical scale in Europe, including 271 houses from Norway and 807 dust samples from three...

Composite landscape predictors improve distribution models of ecosystem types

Trond Simensen, Peter Horvath, Julien Vollering, Lars Erikstad, Rune Halvorsen & Anders Bryn
Aim: Distribution modelling is a useful approach to obtain knowledge about the spatial distribution of biodiversity, required for e.g., red list assessments. While distribution modelling methods have been applied mostly to single species, modelling of communities and ecosystems (EDM; ecosystem-level distribution modelling) produces results that are more directly relevant for management and decision-making. Although the choice of predictors is a pivotal part of the modelling process, few studies have compared the suitability of different sets...

Pervasive admixture and the spread of a large-lipped form in a cichlid fish radiation

Will Sowersby, José Cerca, Bob Wong, Topi Lehtonen, David Chapple, Mariana Leal-Cardin, Marta Barluenga & Mark Ravinet
Adaptive radiations have proven important for understanding the mechanisms and processes underlying biological diversity. The convergence of form and function, as well as admixture and adaptive introgression, are common in adaptive radiations. However, distinguishing between these two scenarios remains a challenge for evolutionary research. The Midas cichlid species complex (Amphilophus spp.) is a prime example of adaptive radiation, with phenotypic diversification occurring at various stages of genetic differentiation. One species, A. labiatus, has large fleshy...

Egg covering in great tits and effects on pied flycatchers

Tore Slagsvold & Karen L. Wiebe
This dataset contains data from experiments carried out in a woodland area and described in the paper: “T. Slagsvold, and Wiebe, K. L. (2021) “Egg covering in cavity nesting birds may prevent nest usurpation by other species.” https://doi.org/10.1007/s00265-021-03045-w The experiments investigated a new hypothesis, namely that the cavity nesting birds, like titmice, cover their eggs when they leave the nest during the egg laying period to prevent usurpation of the cavity by other birds. We...

MetaComNet: A random forest-based framework for making spatial prediction of plant-pollinator interactions

Markus Arne Kjær Sydenham, Zander Venter, Trond Reitan, Claus Rasmussen, Astrid Skrindo, Daniel Skoog, Kaj-Andreas Hanevik, Stein Joar Hegland, Yoko Dupont, Anders Nielsen, Joseph Chipperfield & Graciela Rusch
1. Predicting plant-pollinator interaction networks over space and time will improve our understanding of how environmental change is likely to impact the functioning of ecosystems. Here we propose a framework for producing spatially explicit predictions of the occurrence and number of pairwise plant-pollinator interactions and of the species richness, diversity, and abundance of pollinators visiting flowers. We call the framework ‘MetaComNet’ because it aims to link metacommunity dynamics to the assembly of ecological networks. 2....

Birds may decorated their nest to exploit a fear of feathers

Tore Slagsvold & Karen L. Wiebe
This dataset contains data from experiments carried out in a woodland area and described in the paper: “T. Slagsvold, and Wiebe, K. L. (2021) "Nest decoration: birds exploit a fear of feathers to guard their nest from usurpation". The experiments investigated a new hypothesis, namely that some cavity nesting birds, like titmice, add feathers on the top of their nest to prevent usurpation by triggering a fear response in their rivals. We presented pied flycatchers...

Geographic variation and temporal trends in ice phenology in Norwegian lakes during a century

Leif Asbjørn Vøllestad, Jan Henning L’Abée-Lund, John E. Brittain, Ånund Kvambekk & Tord Solvang
The physical characteristics of ice formation in water courses are ideal for studying climatic variation in space and time. We used a large set of observations for 9-116 years (1890-2019) of the timing of freeze-up and break-up, and the length of ice-free season for 99 Norwegian lakes to elucidate variation in ice phenology across space and time. The dataset of Norwegian lakes is unusual, covering considerable variation in altitude (4 – 1401 m above sea...

Mixed-phase orographic cloud microphysics during StormVEx and IFRACS

Douglas Lowenthal, A. Gannet Hallar, Robert O. David, Ian B. McCubbin, Randolph D. Borys & Gerald G. Mace
Wintertime mixed-phase orographic cloud (MPC) measurements were conducted at the Storm Peak Laboratory (SPL) during the Storm Peak Lab Cloud Property Validation Experiment (StormVEx) and Isotopic Fractionation in Snow (IFRACS) programs in 2011 and 2014, respectively. The data include 92 h of simultaneous measurements of supercooled liquid cloud droplet and ice particle size distributions (PSDs). Average cloud droplet number concentration (CDNC), droplet size (NMD), and liquid water content (LWC) were similar in both years, while...

Contrasting demographic histories revealed in two invasive populations of the dry rot fungus Serpula lacrymans

Inger Skrede, Claude Murat, Jaqueline Hess, Sundy Maurice, Jørn Henrik Sønstebø, Annegret Kohler, Dominique Barry-Etienne, Dan Eastwood, Nils Högberg, Francis Martin & Håvard Kauserud
Globalization and international trade have impacted organisms around the world leading to a considerable number of species establishing in new geographic areas. Many organisms have taken advantage of human-made environments, including buildings. One such species is the dry rot fungus Serpula lacrymans, which is the most aggressive wood-decay fungus in indoor environments in temperate regions. Using population genomic analyses of 36 full genome sequenced isolates, we demonstrated that European and Japanese isolates are highly divergent...

Data and scripts for: Quantitative assessment of observed vs. predicted responses to selection

Christophe Pelabon, Elena Albertsen, Arnaud Le Rouzic, Cyril Firmat, Geir H. Bolstad, W. Scott Armbruster & Thomas Hansen
Although artificial-selection experiments seem well suited to testing our ability to predict evolution, the correspondence between predicted and observed responses is often ambiguous due to the lack of uncertainty estimates. We present equations for assessing prediction error in direct and indirect responses to selection that integrate uncertainty in genetic parameters used for prediction and sampling effects during selection. Using these, we analyzed a selection experiment on floral traits replicated in two taxa of the Dalechampia...

Data from: Length variation in short tandem repeats affects gene expression in natural populations of Arabidopsis thaliana

William B Reinar, Vilde O Lalun, Trond Reitan, Kjetill S Jakobsen & Melinka A Butenko
The genetic basis for the fine-tuned regulation of gene expression is complex and ultimately influences the phenotype and thus the local adaptation of natural populations. Short tandem repeats (STRs) consisting of repetitive DNA motifs have been shown to regulate gene expression. STRs are variable in length within a population and serve as a heritable, but semi-reversible, reservoir of standing genetic variation. For sessile organisms such as plants, STRs could be of major importance in fine-tuning...

Data from: Validating marine Devonian biogeography: a study in bioregionalization

Elizabeth Dowding, Malte Ebach & Evgeny Mavrodiev
The Devonian record presents an opportunity to test and validate an existing marine bioregionalisation. This study is the first to use comparative biogeography and phylogenetic data to test Devonian bioregionalisation. Proposed in the 1960’s the Old World, Eastern Americas, and Malvinokaffric realms have been the functional standard within marine Devonian Biogeography. Data from 32 published phylogenies of Devonian marine taxa and a database of c.800 occurrences were analysed using phylogenetic software to test for area...

What does it mean to be wild? Assessing human influence on the environments of nonhuman primate specimens in museum collections

Andrea Eller, Stephanie Canington, Sana Saiyed, Rita Austin, Courtney Hofman & Sabrina Sholts
Natural history collections are often thought to represent environments in a pristine natural state, free from human intervention – the so-called “wild”. In this study, we aim to assess the level of human influence represented by natural history collections of wild-collected primates over 120 years at the Smithsonian Institution’s National Museum of Natural History (NMNH). Our sample consisted of 875 catarrhine primate specimens in NMNH collections, representing 13 genera collected in 39 countries from 1882...

Cheilostome cyclostome assemblage 2020

Lee Hsiang Liow
Examining the supposition that local-scale competition drives macroevolutionary patterns has become a familiar goal in fossil biodiversity studies. But it is an elusive goal, hampered by inadequate confirmation of ecological equivalence and interactive processes between clades, patchy sampling, few comparative analyses of local species assemblages over long geologic intervals, and a dearth of appropriate statistical tools. We address these concerns by reevaluating one of the classic examples of clade displacement in the fossil record, in...

Metagenomics: A viable tool for reconstructing herbivore diet

Physilia Chua, Alex Crampton-Platt, Youri Lammers, Inger Alsos, Sanne Boessenkool & Kristine Bohmann
Metagenomics can generate data on the diet of herbivores, without the need for primer selection and PCR enrichment steps as is necessary in metabarcoding. Metagenomic approaches to diet analysis have remained relatively unexplored, requiring validation of bioinformatic steps. Currently, no metagenomic herbivore diet studies have utilised both chloroplast and nuclear markers as reference sequences for plant identification, which would increase the number of reads that could be taxonomically informative. Here, we explore how in silico...

Seasonal release from competition explains partial migration in European moose

Bram Van Moorter, Navinder Singh, Christer Rolandsen, Erling Solberg, Holger Dettki, Jyrki Pusenius, Johan Månsson, Hakan Sand, Jos Milner, Ole Roer, Aimee Tallian, Wiebke Neumann, Göran Ericsson & Atle Mysterud
Partial migration, whereby a proportion of a population migrates between distinct seasonal ranges, is common throughout the animal kingdom. However, studies linking existing theoretical models of migration probability, with empirical data are lacking. The competitive release hypothesis for partial migration predicts that due to density-dependent habitat selection, the proportion of migrants increases as the relative quality and size of the seasonal range increases, but decreases with increasing migration cost and population density. To test this...

Molecular dietary analyses of western capercaillies (Tetrao urogallus) reveal a diverse diet

Physilia Chua, Youri Lammers, Emmanuel Menoni, Torbjørn Ekrem, Kristine Bohmann, Sanne Boessenkool & Inger Alsos
Conservation strategies centred around species habitat protection rely on species’ dietary information. One species at the focal point of conservation efforts is the herbivorous grouse, the western capercaillie (Tetrao urogallus), which is an indicator species for forest biodiversity conservation. Non-molecular means used to study their diet are time-consuming and at low taxonomic resolution. This delays the implementation of conservation strategies including resource protection due to uncertainty about its diet. Thus, limited knowledge on diet is...

Expanding forests in alpine regions lead to a corresponding shift in belowground fungal communities

Synnøve Smebye Botnen, Lea-Rebekka Tonjer, Ella Thoen, Sunil Mundra, Luis Morgado, Line Nybakken, Anders Bryn & Håvard Kauserud
Climate change causes upward shift of forest lines worldwide, with consequences on soil biota and carbon sequestration (C). We here analyse compositional changes in the soil biota across the forest line ecotone, an important transition zone between different ecosystems. We collected soil samples along transects stretching from subalpine mountain birch forests to low-alpine vegetation. Soil fungi and micro-eukaryotes were surveyed using DNA metabarcoding of the 18S and ITS2 markers, while ergosterol was used to quantify...

Sperm length divergence as a potential pre-zygotic barrier in a passerine hybrid zone

Emily Cramer, Gaute Grønstøl, Logan Maxwell, Adrienne Kovach & Jan Lifjeld
The saltmarsh sparrow Ammospiza caudacuta and the Nelson’s sparrow A. nelsoni differ in ecological niche, mating behavior, and plumage, but they hybridize where their breeding distributions overlap. In this advanced hybrid zone, past inter-breeding and current back-crossing result in substantial genomic introgression in both directions, although few hybrids are currently produced in most locations. However, because both species are non-territorial and have only brief male-female interactions, it is difficult to determine to what extent assortative...

Age matters: Demographic senescence in the moss Polytrichastrum formosum

Ditte Tholstrup, Rune Halvorsen & Johan Dahlgren
It is known that many animal species senesce demographically, showing a decrease in survival and/or fertility with age. Though there is mounting evidence for and against senescence in various flowering plant species, the question of whether senescence also occurs in other plant taxa, such as mosses and other bryophytes, remains unanswered. We used GAMMs (generalized additive mixed models) and GLMMs (generalized linear mixed models) to assess effects of age on survival, size and the monocarpic...

Arthropod OTUs in fruit bodies of wood decay fungi

Lisa Lunde & Sundy Maurice
Biological communities within living organisms are structured by their host’s traits. How host traits affect biodiversity and community composition is poorly explored for some associations, such as arthropods within fungal fruit bodies. Using DNA metabarcoding, we revealed the arthropod communities in living fruit bodies of eleven wood-decay fungi from boreal forests and investigated how they were affected by different fungal traits. Arthropod diversity was higher in fruit bodies with a larger surface area-to-volume ratio, suggesting...

Data from: Traits mediate niches and co-occurrences of forest beetles in ways that differ among bioclimatic regions

Ryan C. Burner, Jörg G. Stephan, Lukas Drag, Tone Birkemoe, Jörg Muller, Tord Snäll, Otso Ovaskainen, Mária Potterf, Juha Siitonen, Olav Skarpaas, Inken Doerfler, Martin M. Gossner, Peter Schall, Wolfgang W. Weisser & Anne Sverdrup-Thygeson
Aim To investigate the role of traits in beetle community assembly and test for consistency in these effects among several bioclimatic regions. We asked (1) whether traits predicted species’ responses to environmental gradients (i.e., their niches), (2) whether these same traits could predict co-occurrence patterns, and (3) how consistent were niches and the role of traits among study regions. Location Boreal forests in Norway and Finland, temperate forests in Germany. Methods We complied capture records...

Analyzing disparity and rates of morphological evolution with model-based phylogenetic comparative methods

Thomas F. Hansen, Geir Bolstad & Masahito Tsuboi
Understanding variation in rates of evolution and morphological disparity is a goal of macroevolutionary research. In a phylogenetic comparative methods framework, we present three explicit models for linking the rate of evolution of a trait to the state of another evolving trait. This allows testing hypotheses about causal influences on rates of phenotypic evolution with phylogenetic comparative data. We develop a statistical framework for fitting the models with generalized least-squares regression, and use this to...

Epidemiology of epilepsy in Nigeria: A community-based study from 3 sites

Musa Mamman Watila, Salisu A. Balarabe, Morenikeji A. Komolafe, Stanley C. Igwe, Michael B. Fawale, Willem M. Otte, Eric Van Diessen, Olaitan Okunoye, Anthony A. Mshelia, Ibrahim Abdullahi, Joseph Musa, Erick W. Hedima, Yakub W. Nyandaiti, Gagandeep Singh, Andrea S. Winkler & Josemir W. Sander
Background: We determined the prevalence, incidence, and risk factors for epilepsy in Nigeria. Methods: We conducted a door-to-door survey to identify cases of epilepsy in three regions. We estimated age-standardized prevalence adjusted for non-response and sensitivity and the one-year retrospective incidence for active epilepsy. To assess potential risk factors, we conducted a case-control study by collecting sociodemographic and risk factor data. We estimated odds ratios (ORs) using logistic regression analysis and corresponding population attributable fractions...

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...

Registration Year

  • 2021
    25

Resource Types

  • Dataset
    25

Affiliations

  • University of Oslo
    25
  • Norwegian University of Life Sciences
    4
  • Norwegian Institute for Nature Research
    4
  • Swedish University of Agricultural Sciences
    3
  • University of Helsinki
    3
  • The Arctic University of Norway
    2
  • University of Saskatchewan
    2
  • Lund University
    2
  • Natural Resources Institute Finland
    2
  • University of Copenhagen
    2