49 Works

Data from: Mass-independent maximal metabolic rate predicts geographic range size of placental mammals

Jack P. Hayes, Chris R. Feldman & Miguel B. Araújo
1.Understanding the mechanisms driving geographic range sizes of species is a central issue in ecology, but remarkably few rules link physiology with the distributions of species. Maximal metabolic rate (MMR) during exercise is an important measure of physiological performance. It sets an upper limit to sustained activity and locomotor capacity, so MMR may influence ability to migrate, disperse, and maintain population connectivity. Using both conventional ordinary least squares (OLS) analyses and phylogenetically generalized least squares...

Data from: Prey‐specific impact of cold pre‐exposure on kill rate and reproduction

Kim Jensen, Søren Toft, Lene Sigsgard, Jesper G. Sørensen, Martin Holmstrup & Lene Sigsgaard
1.Temperature influences biological processes of ectotherms including ecological interactions, but interaction strengths may depend on species‐specific traits. Furthermore, ectotherms acclimate to prevailing thermal conditions by adjusting physiological parameters, which often implies costs to other fitness‐related parameters. Both predators and prey may therefore pay thermal acclimation costs following exposure to suboptimal temperatures. However, these costs may be asymmetrical between predator and prey, and between the predator and different species of concurrent prey. 2.We investigated whether thermal...

Data from: Experimental warming in the field delays phenology and reduces body mass and survival: implications for the persistence of a pollinator under climate change

Paul J. CaraDonna, James L. Cunningham & Amy M. Iler
1. Climate change is rapidly altering thermal environments across the globe. The effects of increased temperatures in already warm environments may be particularly strong because organisms are likely to be near their thermal safety margins, with limited tolerance to additional heat stress. 2. We conduct an in situ field experiment over two years to investigate the direct effects of temperature on an early-season solitary bee in a warm, arid region of the Southwestern USA. Our...

Data from: Polyphasic data support the splitting of Aspergillus candidus into two species; proposal of Aspergillus dobrogensis sp. nov.

Vit Hubka, Alena Nováková, Željko Jurjević, František Sklenář, Jens C. Frisvad, Jos Houbraken, Maiken C. Arendrup, João P. Z. Siqueira, Josepa Gené & Miroslav Kolařík
Aspergillus candidus is a species frequently isolated from stored grain, food, indoor environments, soil and occasionally also from clinical material. Recent bioprospecting studies highlighted the potential of using A. candidus and its relatives in various industrial sectors as a result of their significant production of enzymes and bioactive compounds. A high genetic variability was observed among A. candidus isolates originating from various European countries and the USA, that were mostly isolated from indoor environments, caves...

Data from: Testosterone in ancient hair from an extinct species

Lee Koren, Devorah Matas, Patrícia Pečnerová, Love Dalén, Alexei Tikhonov, M. Thomas P. Gilbert, Katherine E. Wynne-Edwards & Eli Geffen
Testosterone is a key regulator in vertebrate development, physiology, and behaviour. Whereas technology allows extraction of a wealth of genetic information from extant as well as extinct species, complimentary information on steroid hormone levels may add a social, sexual, and environmental context. Hair shafts have been previously used to sequence DNA from >50,000 14C years old Siberian woolly mammoths (Mammuthus primigenius). Hair-testing has also been used to measure endogenous steroids in multiple extant species. Here...

Data from: Evolution of non-kin cooperation: social assortment by cooperative phenotype in guppies

Josefine Brask, Darren Croft, Matthew Edenbrow, Richard James, Heather Bleakley, Indar Ramnarine, Robert Heathcote, Charles Tyler, Patrick Hamilton, Torben Dabelsteen & Safi Darden
Cooperation among non-kin constitutes a conundrum for evolutionary biology. Theory suggests that non-kin cooperation can evolve if individuals differ consistently in their cooperative phenotypes and assort socially by these, such that cooperative individuals interact predominantly with one another. However, our knowledge of the role of cooperative phenotypes in the social structuring of real-world animal populations is minimal. In this study, we investigated cooperative phenotypes and their link to social structure in wild Trinidadian guppies (Poecilia...

Data from: Electromagnetic source imaging in presurgical workup of patients with epilepsy: a prospective study

Lene Duez, Hatice Tankisi, Peter O. Hansen, Per Sidenius, Anne Sabers, Lars H. Pinborg, Martin Fabricius, György Rásonyi, Guido Rubboli, Birthe Pedersen, Anne-Mette Leffers, Peter Uldall, Bo Jespersen, Jannick Brennum, Otto M. Henriksen, Anders Fuglsang-Frederiksen & Sándor Beniczky
Objective: To determine the diagnostic accuracy and clinical utility of electromagnetic source imaging (EMSI) in presurgical evaluation of patients with epilepsy. Methods: We prospectively recorded magnetoencephalography (MEG) simultaneously with electroencephalography (EEG) and performed EMSI, comprising electric (ESI), magnetic source imaging (MSI) and analysis of combined MEG-EEG datasets (cEMSI), using two different software packages. As reference standard for irritative zone (IZ) and seizure onset zone (SOZ) we used intracranial recordings and for localization accuracy, outcome one...

Data from: Locality or habitat? Exploring predictors of biodiversity in Amazonia

Camila D. Ritter, Alexander Zizka, Christopher Barnes, R. Henrik Nilsson, Fabian Roger & Alexandre Antonelli
Amazonia is an environmentally heterogeneous and biologically megadiverse region, and its biodiversity varies considerably over space. However, existing knowledge on Amazonian biodiversity and its environmental determinants stems almost exclusively from studies of macroscopic above‐ground organisms, notably vertebrates and trees. In contrast, diversity patterns of most other organisms remain elusive, although some of them, for instance microorganisms, constitute the overwhelming majority of taxa in any given location, both in terms of diversity and abundance. Here, we...

Data from: Field observations of turbulence, sand suspension and cross-shore transport under spilling and plunging breakers

Troels Aagaard, Michael G. Hughes & Gerben Ruessink
Measurements of wave orbital velocity, near-bed turbulence levels and sediment suspension were obtained under plunging and spilling breakers in the outer surf zone on the beach at Vejers, Denmark. For the same range of relative wave heights and indicators of wave nonlinearity, we observed significantly larger suspended sediment concentrations and onshore-directed rates of suspended sediment transport under (long-period) plunging breakers, compared to (short-period) spilling breakers. This is consistent with the long-held understanding that, for a...

Data from: Effect of ecological momentary assessment, goal-setting and personalized phone-calls on adherence to interval walking training using the InterWalk application among patients with type 2 diabetes – a pilot randomized controlled trial

Laura Staun Valentiner, Ida Kær Thorsen, Malte Bue Kongstad, Cecilie Fau Brinkløv, Rasmus Tolstrup Larsen, Kristian Karstoft, Jens Steen Nielsen, Bente Klarlund Pedersen, Henning Langberg & Mathias Ried-Larsen
Objectives: The objective was to investigate the feasibility and usability of structured text-messages, goal-setting and phone-calls on adherence to a 12-week self-conducted interval walking training (IWT) program, delivered by the InterWalk smartphone among patients with type 2 diabetes (T2D). Methods: In a two-arm pilot randomized controlled trial (Denmark, March 2014 to February 2015), patients with T2D (18-80 years with a Body Mass Index of 18 and 40 kg/m2) were randomly allocated to 12 weeks of...

Data from: Global drivers of tree seedling establishment at alpine treelines in a changing climate

Signe Lett & Ellen Dorrepaal
Alpine and Arctic treeline expansion depends on establishment of tree seedlings beyond the current treeline, which is expected to occur with climate warming. However, treelines often fail to respond to higher temperatures, and it is therefore likely that other environmental factors are important for seedling establishment. We aimed to analyse our current understanding of how temperature and a range of other environmental drivers affect tree seedling establishment at the alpine and Arctic treelines worldwide, and...

Data from: Recurrent hybridisation events between Primula vulgaris, P. veris and P. elatior (Primulaceae, Ericales) challenge the species boundaries: Using molecular markers to re‐evaluate morphological identifications

Kira Tendal, Marian Ørgaard, Bjarne Larsen & Carsten Pedersen
Three Primula species, Primula vulgaris, P. veris and P. elatior, have been objects of fascination for gardeners and botanists over several centuries. The species are able to hybridise, and where they co-occur, hybrids are commonly found. In Denmark, Møns Klint on the island of Møn and Købelev Skov on Lolland are examples of localities where all three species occur and where the hybrids P. ×digenea, the hybrid between P. vulgaris and P. elatior, and P....

Data from: Vascular plant species richness and bioindication predict multi‐taxon species richness

Ane Kirstine Brunbjerg, Hans Henrik Bruun, Lars Dalby, Camilla Fløjgaard, Tobias Guldbjerg Frøslev, Toke Thomas Høye, Irina Goldberg, Thomas Læssøe, Morten D. D. Hansen, Lars Brøndum, Lars Skipper, Kåre Fog & Rasmus Ejrnæs
Plants regulate soils and microclimate, provide substrate for heterotrophic taxa, are easy to observe and identify and have a stable taxonomy, which strongly justifies their use as indicators in monitoring and conservation. However, there is no consensus as to whether plants are strong predictors of total multi‐taxon species richness. In this study, we investigate if general terrestrial species richness can be predicted by vascular plant richness and bioindication. To answer this question, we collected an...

Data from: Territorial defence in a network: audiences only matter to male crabs primed for confrontation

Safi K. Darden, Maggie K. May, Natasha K. Boyland & Torben Dabelsteen
Territorial contests often occur in the presence of conspecifics not directly involved in the interaction. Actors may alter their behaviour in the presence of this audience, an ‘audience effect’, and audiences themselves may alter their behaviour as a result of observing an interaction, a ‘bystander effect’. Previous work has documented these effects by looking at each in isolation, but to our knowledge, none has investigated their interaction; something that is more likely to represent a...

Data from: Latitudinal pattern of flowering synchrony in an invasive wind-pollinated plant

Shiyun Qiu, Xiao Xu, Shuangshuang Liu, Wenwen Liu, Jing Liu, Ming Nie, Fuchen Shi, Yihui Zhang, Jacob Weiner & Bo Li
Flowering synchrony can play an important role in plants’ reproductive success, which is essential for the successful establishment and spread of invasive plants. Although flowering synchrony has been found to be closely related to climatic factors, the effects of variation in such factors along latitudinal gradients on flowering synchrony, and the role of flowering synchrony in the reproductive success of invading populations remain largely unexplored. In a two-year field study, we examined the latitudinal variation...

Data from: Shortwave sand transport in the shallow surf zone

J. A. Brinkemper, T. Aagaard, A. T. M. De Bakker, B. G. Ruessink & J. A. Brinkkemper
Empirical parameterizations of the shortwave sand transport that are used in practical engineering models lack the representation of certain processes to accurately predict morphodynamics in shallow water. Therefore, measurements of near‐bed velocity and suspended sand concentration, collected during two field campaigns (at the Sand Engine and Ameland, the Netherlands) and one field‐scale laboratory experiment (BARDEXII), were here analyzed to study the magnitude and direction of the shortwave sand flux in the shallow surf zone. Shortwave...

Data from: No evidence of quantitative signal honesty across species of aposematic burnet moths (Lepidoptera: Zygaenidae)

Emmanuelle S. Briolat, Mika Zagrobelny, Carl E. Olsen, Jonathan D. Blount & Martin Stevens
Many defended species use conspicuous visual warning signals to deter potential predators from attacking. Traditional theory holds that these signals should converge on similar forms, yet variation in visual traits and the levels of defensive chemicals is common, both within and between species. It is currently unclear how the strength of signals and potency of defences might be related: conflicting theories suggest that aposematic signals should be quantitatively honest, or, in contrast, that investment in...

Data from: Environment and host as large-scale controls of ectomycorrhizal fungi

Sietse Van Der Linde, Laura M. Suz, C. David L. Orme, Filipa Cox, Henning Andreae, Endla Asi, Bonnie Atkinson, Sue Benham, Christopher Carroll, Nathalie Cools, Bruno De Vos, Hans-Peter Dietrich, Johannes Eichhorn, Joachim Germann, Tine Grebenc, Hyun S. Gweon, Karin Hansen, Frank Jacob, Ferdinand Kristöfel, Pawel Lech, Miklos Manninger, Jan Martin, Henning Meesenburg, Päivi Merilä, Manuel Nicolas … & Martin I. Bidartondo
Explaining the large-scale diversity of soil organisms that drive biogeochemical processes—and their responses to environmental change—is critical. However, identifying consistent drivers of belowground diversity and abundance for some soil organisms at large spatial scales remains problematic. Here we investigate a major guild, the ectomycorrhizal fungi, across European forests at a spatial scale and resolution that is—to our knowledge—unprecedented, to explore key biotic and abiotic predictors of ectomycorrhizal diversity and to identify dominant responses and thresholds...

Data from: Explaining European fungal fruiting phenology with climate variability

Carrie Andrew, Einar Heegaard, Klaus Høiland, Beatrice Senn-Irlet, Thomas W. Kuyper, Irmgard Krisai-Greilhuber, Paul M. Kirk, Jacob Heilmann-Clausen, Alan C. Gange, Simon Egli, Claus Bässler, Ulf Büntgen, Lynne Boddy & Håvard Kauserud
Here we assess the impact of geographically dependent (latitude, longitude and altitude) changes in bioclimatic (temperature, precipitation and primary productivity) variability on fungal fruiting phenology across Europe. Two main nutritional guilds of fungi, saprotrophic and ectomycorrhizal, were further separated into spring and autumn fruiters. We used a path‐analysis to investigate how biogeographic patterns in fungal fruiting phenology coincided with seasonal changes in climate and primary production. Across central to northern Europe, mean fruiting varied by...

Data from: Trait evolution, resource specialization and vulnerability to plant extinctions among Antillean hummingbirds

Bo Dalsgaard, Jonathan D. Kennedy, Benno I. Simmons, Andrea C. Baquero, Ana M. Martín González, Allan Timmermann, Pietro K. Maruyama, Jimmy A. McGuire, Jeff Ollerton, William J. Sutherland & Carsten Rahbek
Species traits are thought to predict feeding specialisation and the vulnerability of a species to extinctions of interaction partners, but the context in which a species evolved and currently inhabits may also matter. Notably, the predictive power of traits may require that traits evolved to fit interaction partners. Furthermore, local abiotic and biotic conditions may be important. On islands, for instance, specialised and vulnerable species are predicted to be found mainly in mountains, whereas species...

Data from: Horizontal partner exchange does not preclude stable mutualism in fungus-growing ants

Jack Howe, Morten Schiøtt & Jacobus J. Boomsma
Vertical symbiont transmission tends to stabilize mutualisms by aligning the reproductive interests of cooperating species. The attine ants conform well to this principle, because all species are nutritionally dependent on vertically transmitted and clonally propagated fungal cultivars. Multiple mechanisms expressed by both partners constrain cultivar transmission between established colonies, but these appear not to preclude horizontal transfer during colony founding, consistent with multiple phylogenetic analyses indicating at least occasional horizontal transfer. The ecological and evolutionary...

Data from: Acid-sensing ion channels emerged over 600 MYA and are conserved throughout the deuterostomes

Timothy Lynagh, Yana Mikhaleva, Janne M. Colding, Joel C. Glover & Stephan A. Pless
Acid-sensing ion channels (ASICs) are proton-gated ion channels broadly expressed in the vertebrate nervous system, converting decreased extracellular pH into excitatory sodium current. ASICs were previously thought to be a vertebrate-specific branch of the DEG/ENaC family, a broadly conserved but functionally diverse family of channels. Here, we provide phylogenetic and experimental evidence that ASICs are conserved throughout deuterostome animals, showing that ASICs evolved over 600 million years ago. We also provide evidence of ASIC expression...

Data from: Naturalized plants decrease diet similarity between an invasive bird and its most similar native species

Gonçalo C. Rodrigues, Paulo Alves, Joana R. Vicente, João P. Honrado & Gonçalo C. Cardoso
Although invasive animals can compete with native species for resources, detrimental competition for food is seldom reported in the avian invasions literature. In temperate climates, food limitation and energetic stress are higher during winter and, thus, winter diets might reveal competition that is not apparent during the rest of the year. We compared autumn and winter diets of the invasive common waxbill (Estrilda astrild) in northwest Iberia, and of the native bird most similar to...

Data from: A mimicked bacterial infection prolongs stopover duration in songbirds – but more pronounced in short- than long-distance migrants

Arne Hegemann, Pablo Alcalde Abril, Sissel Sjöberg, Rachel Muheim, Thomas Alerstam, Jan-Åke Nilsson & Dennis Hasselquist
1) Migration usually consists of intermittent travel and stopovers, the latter being crucially important for individuals to recover and refuel to successfully complete migration. Quantifying how sickness behaviours influence stopovers is crucial for our understanding of migration ecology and how diseases spread. However, little is known about infections in songbirds, which constitute the majority of avian migrants. 2) We experimentally immune-challenged autumn migrating passerines (both short- and long-distance migrating species) with a simulated bacterial infection....

Data from: Population structure, relatedness and ploidy levels in an apple gene bank revealed through genotyping-by-sequencing

Bjarne Larsen, Kyle Gardner, Carsten Pedersen, Marian Ørgaard, Zoë Migicovsky, Sean Myles & Torben Bo Toldam-Andersen
In recent years, new genome-wide marker systems have provided highly informative alternatives to low density marker systems for evaluating plant populations. To date, most apple germplasm collections have been genotyped using low-density markers such as simple sequence repeats (SSRs), whereas only a few have been explored using high-density genome-wide marker information. We explored the genetic diversity of the Pometum gene bank collection (University of Copenhagen, Denmark) of 349 apple accessions using over 15,000 genome-wide single...

Registration Year

  • 2018
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Resource Types

  • Dataset
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Affiliations

  • University of Copenhagen
    49
  • Aarhus University
    5
  • University of Exeter
    5
  • University of Cambridge
    4
  • Lund University
    3
  • University of Oslo
    3
  • Rigshospitalet
    3
  • University of Adelaide
    2
  • Dalhousie University
    2
  • University of East Anglia
    2