97 Works

Different pollination approaches to compare the seed set of diploid and tetraploid red clover (Trifolium pratense L.)

Shuxuan Jing, Per Kryger & Birte Boelt
In red clover seed production, low seed yield is limiting the commercial exploitation of tetraploid red clover. To explore if pollination is the limiting factor for the seed yield in tetraploid red clover, we investigated pollinator behaviour and plant reproductive success in diploid (2x) cultivar ‘Rajah’ and tetraploid (4x) cultivar ‘Amos’ using honey bee and hand pollination approaches. We measured the seed set at the flower head level with the increasing visitation rate in honey...

Hvordan spredte mennesket sig fra Afrika og ud over Jorden?

Ole Høiris

The biomolecular characterisation of a finger ring contextually dated to the emergence of the Early Neolithic from Syltholm, Denmark

Theis Jensen, Meaghan Mackie, Alberto Taurozzi, Liam Lannigan, Carsten Gundelach, Jesper Olsen, Søren Sørensen, Matthew Collins, Mikkel Sørensen & Hannes Schroeder
We present the analysis of an osseous finger ring from a predominantly early Neolithic context in Denmark. To characterise the artefact and identify the raw material used for its manufacture, we performed micro-computed tomography (Micro CT) scanning, zooarchaeology by mass spectrometry (ZooMS) peptide mass fingerprinting, as well as protein sequencing by liquid chromatography tandem mass spectrometry (LC-MS/MS). We conclude that the ring was made from long bone or antler due to the presence of osteons...

COVID-19-forskning: Del data om dine aktiviteter i ny app, og gør en forskel

Trine Rolighed Thomsen, Zahra Partovi Nasr & Carsten Obel

Data from: Overall dynamic body acceleration measures activity differently on large vs small aquatic animals

Lucía Martina Martín López, Natacha Aguilar De Soto, Peter Teglberg Madsen & Mark Johnson
Acceleration-based proxies for activity and energy expenditure are widely used in bio-logging studies of animal movement and locomotion to explore biomechanical strategies, energetic costs of behaviour, habitat use and the impact of anthropogenic disturbance. The foremost such proxy is Overall Dynamic Body Acceleration (ODBA) along with variants VeDBA and PDBA. This technique, which involves summing the magnitude of high-pass-filtered acceleration signals (the so-called dynamic acceleration) over a reference interval, has been applied to animals as...

Raw cutadapt miseq output - minibarcode 18S-V7 of macroalgae

Sarah Ørberg
Macroalgae are key primary producers in North Atlantic and Arctic coastal ecosystems, and tracing their fate and distribution is vital to improve our understanding of their ecological role and provision of ecosystem services. Recent advances from environmental DNA (eDNA) have added a new capacity to fingerprint and trace macroalgae. However, further development of resources for amplifying and identifying macroalgal eDNA are much needed. Here, we examined the performance in terms of resolution and specificity of...

Det moderne menneskes vej ind i Asien stiller store spørgsmål til vores oprindelse

Ole Høiris

Homo sapiens' vandring ud af Afrika var… snørklet

Ole Høiris

Hvornår kom de første mennesker til Amerika? Sporene bliver ældre og ældre

Ole Høiris

Does conservative kidney management offer a quantity or quality of life benefit compared to dialysis? A systematic review

Louise Engelbrecht Buur, Jens Kristian Madsen, Inge Eidemak, Elizabeth Krarup, Thomas Guldager Lauridsen, Lena Helbo Taasti & Jeanette Finderup
Abstract Background Patients with stage 5 chronic kidney disease (CKD5) collaborate with their clinicians when choosing their future treatment modality. Most elderly patients with CKD5 may only have two treatment options: dialysis or conservative kidney management (CKM). The objective of this systematic review was to investigate whether CKM offers a quantity or quality of life benefit compared to dialysis for some patients with CKD5. Methods The databases MEDLINE, EMBASE, the Cochrane Library, and CINAHL were...

Additional file 4 of Does conservative kidney management offer a quantity or quality of life benefit compared to dialysis? A systematic review

Buur Louise Engelbrecht, Madsen Jens Kristian, Eidemak Inge, Krarup Elizabeth, Lauridsen Thomas Guldager, Taasti Lena Helbo & Finderup Jeanette
Additional file 4:

Additional file 1 of Does conservative kidney management offer a quantity or quality of life benefit compared to dialysis? A systematic review

Louise Engelbrecht Buur, Jens Kristian Madsen, Inge Eidemak, Elizabeth Krarup, Thomas Guldager Lauridsen, Lena Helbo Taasti & Jeanette Finderup
Additional file 1:

Additional file 3 of Does conservative kidney management offer a quantity or quality of life benefit compared to dialysis? A systematic review

Louise Engelbrecht Buur, Jens Kristian Madsen, Inge Eidemak, Elizabeth Krarup, Thomas Guldager Lauridsen, Lena Helbo Taasti & Jeanette Finderup
Additional file 3:

Additional file 1 of Does conservative kidney management offer a quantity or quality of life benefit compared to dialysis? A systematic review

Buur Louise Engelbrecht, Madsen Jens Kristian, Eidemak Inge, Krarup Elizabeth, Lauridsen Thomas Guldager, Taasti Lena Helbo & Finderup Jeanette
Additional file 1:

Effects of episodic nutrients enrichments on P-limited planktonic communities: Lake Redon ENEX 2013 experiment

Jordi Catalan, Marisol Felip, Pau Giménez-Grau, Aitziber Zufiaurre, Lluis Camarero & Sergi Pla-Rabés
Planktonic communities are naturally subjected to episodic nutrient enrichments that may stress or redress the imbalances in limiting nutrients. Human-enhanced atmospheric nitrogen deposition has caused profound N:P imbalance in many remote oligotrophic lakes in which phosphorus has largely become limiting. These lakes offer an opportunity to investigate the planktonic community response to nutrient fluctuations in P-limited conditions. The ENEX experiment in Lake Redon (Pyrenees), performed during August 2013, aimed to investigate the structural and stoichiometric...

Data supporting: Food limitation and starvation independently affect predator macronutrient selection

Søren Toft
Predators are often food limited in their habitat, and some are limited by specific macronutrients (protein, lipid or carbohydrate). It is unresolved, however, to what extent and in what way food and macronutrient limitation are connected. Using a carabid beetle (Nebria brevicollis), we compared macronutrient self-selection of the animals three times: immediately after collection in the field, after being fed to satiation and nutritional balance, and after a subsequent period of starvation. Both sexes were...

Inconsistent effects of agricultural practices on soil fungal communities across twelve European long‐term experiments

S. Emilia Hannula, D. P. Di Lonardo, B. T. Christensen, F.V. Crotty, A. Elsen, P.J. Erp, E.M. Hansen, G. H. Rubæk, M. Tits, Z. Toth & A. J. Termorshuizen
Cropping practices have a great potential to improve soil quality through changes in soil biota. Yet the effects of these soil improving cropping systems on soil fungal communities are not well known. Here, we analysed soil fungal communities using standardized measurements in 12 long‐term experiments and 20 agricultural treatments across Europe. We were interested in whether the same practices (i.e. tillage, fertilization, organic amendments and cover crops) applied across different sites have predictable and repeatable...

Fremtidige lægemidler kan indeholde dine egne celler

Peter Hokland

Data for: Rapid shifts in Arctic tundra species’ distributions and inter-specific range overlap under future climate change

Floris Van Beest, Larissa Beumer, Asbjørn Andersen, Sophia Hansson & Niels Schmidt
Aim: The Arctic is one of the planet’s most rapidly warming regions, with trends expected to intensify in the future. Projections of shifts in species distributional ranges under future climate change are thus far lacking for most vertebrate species using the Arctic tundra. Our aim was to assess possible climate-induced changes in distributional ranges and inter-specific overlap of an Arctic species assemblage within the world’s largest land-based protected area. Location: During 1979-2013 location data of...

12 indsigter, vi har fået i Danmarks femte ringborg fra vikingetiden

Søren Sindbæk, Morten Fischer Mortensen & Jens Ulriksen

Capturing single-copy nuclear genes, organellar genomes, and nuclear ribosomal DNA from deep genome skimming data for plant phylogenetics: A case study in Vitaceae

Bin-Bin Liu, Zhi-Yao Ma, Chen Ren, Richard Hodel, Miao Sun, Xiu-Qun Liu, Guang-Ning Liu, De-Yuan Hong, Elizabeth Zimmer & Jun Wen
With the decreasing cost and availability of many newly developed bioinformatics pipelines, next-generation sequencing (NGS) has revolutionized plant systematics in recent years. Genome skimming has been widely used to obtain high-copy fractions of the genomes, including plastomes, mitochondrial DNA (mtDNA), and nuclear ribosomal DNA (nrDNA). In this study, through simulations, we evaluated the optimal (minimum) sequencing depth and performance for recovering single-copy nuclear genes (SCNs) from genome skimming data, by subsampling genome resequencing data and...

Pollination and plant reproductive success of two ploidy levels in red clover (Trifolium pratense L.)

Shuxuan Jing, Per Kryger, Bo Markussen & Birte Boelt
This dataset includes hand pollination, honey bee pollination and pollen germination experiments described in the article "Pollination and plant reproductive success of two ploidy levels in red clover (Trifolium pratense L.)", published in Frontiers in Plant Science (DOI: 10.3389/fpls.2021.720069). In a series of hand pollination experiments, the influence of visitation rate (10, 20, 40, 80 pollinated florets per flower head) on the seed number per pollinated floret and seed number per flower head were investigated,...

Derfor klarede Homo sapiens sig bedre i Europa end neandertalerne

Ole Høiris

The R package enerscape: A general energy landscape framework for terrestrial movement ecology

Emilio Berti, Marco Davoli, Robert Buitenwerf, Alexander Dyer, Oskar Hansen, Myriam Hirt, Jens-Christian Svenning, Jördis Terlau, Ulrich Brose & Fritz Vollrath
Ecological processes and biodiversity patterns are strongly affected by how animals move through the landscape. However, it remains challenging to predict animal movement and space use. Here we present our new R package enerscape to quantify and predict animal movement in real landscapes based on energy expenditure. Enerscape integrates a general locomotory model for terrestrial animals with GIS tools in order to map energy costs of movement in a given environment, resulting in energy landscapes...

Deer-vehicle collisions in Denmark

Martin Mayer, Jacob Coleman Nielsen, Morten Elmeros & Peter Sunde
Vehicles collide with hundreds of thousands of deer on European roads each year. This leads to animal deaths and suffering, economic damage and risks for human safety, making the reduction of road mortality a major field in conservation biology. In order to successfully reduce roadkill, we need improved knowledge regarding spatio-temporal patterns of deer-vehicle collisions (DVCs) on a landscape scale. Here, we analyzed >85,000 DVCs collected over 17 years in Denmark to investigate changes in...

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  • Aarhus University
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  • Zhejiang University
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  • University of Minnesota
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