Results 31 to 40 of about 9,354 (186)

Ultrafast and accurate 16S rRNA microbial community analysis using Kraken 2

Microbiome, 2020
Background For decades, 16S ribosomal RNA sequencing has been the primary means for identifying the bacterial species present in a sample with unknown composition.
Jennifer Lu, Steven L. Salzberg
doaj   +1 more source

New aspects to the diet of the Neolithic Tyrolean Iceman “Ötzi“

Journal of Biological Research, 2021
Three surgical interventions on the Tyrolean Iceman “Ötzi” conducted in 1995, 1997 and 2000 resulted in the collection of five ingesta samples. These samples constitute a sequence from different consecutive locations of the intestinal tract: the ileum ...
Klaus Oeggl, Werner Kofler, Alexandra Schmidl   +2 more
doaj   +1 more source

Eroding Confidence in Gully Location Risk Prediction in Mine Pit Rehabilitation

Land Degradation &Development, EarlyView.
ABSTRACT Understanding how rehabilitation measures, such as landform shaping, and surface finishes impact gully erosion risk could assist in designing less erosive rehabilitation. In this study we use high resolution digital elevation models of rehabilitated mine pits to explore risk factors for gully formation.
Eve McCallum, Cameron Blackburn, Monte Masarei, Andrew Guzzomi, Sally Thompson   +4 more
wiley   +1 more source

Facilitative and competitive effects of bracken fronds and litter on tree seedling recruitment

Frontiers in Ecology and Evolution
IntroductionTropical montane forests are diverse ecosystems increasingly threatened by land-use change and frequent uncontrolled fires caused by humans.
Cecilia L. López, Cecilia L. López, Cecilia L. López, Cesar Mayta, Cesar Mayta, Cesar Mayta, Andrea Soliz, Isabell Hensen, Isabell Hensen, Silvia C. Gallegos, Silvia C. Gallegos, Silvia C. Gallegos   +11 more
doaj   +1 more source

Fate of ptaquiloside-A bracken fern toxin-In cattle.

PLoS ONE, 2019
Ptaquiloside is a natural toxin present in bracken ferns (Pteridium sp.). Cattle ingesting bracken may develop bladder tumours and excrete genotoxins in meat and milk.
Paulo César Dos Reis Aranha, Lars Holm Rasmussen, Godelind Alma Wolf-Jäckel, Henrik Michael Elvang Jensen, Hans Christian Bruun Hansen, Christian Friis   +5 more
doaj   +1 more source

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

Oikos, EarlyView.
Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain.
Steven K. Schmidt, Jannetta N. Robinson, Adam J. Solon, James A. Bradley, Anastasia S. Hambi, Rachel R. Rubin, Charles Oliver, Ben W. Johnson, Mihai O. Cimpoiasu, Trevor P. Irons, Oliver Kuras, Anna Bergstrom, Pacifica Sommers   +12 more
wiley   +1 more source

Using participatory scenario planning to explore the synergies and trade‐offs from upland treescape expansion

People and Nature, EarlyView.
Abstract The future of land use in the UK uplands is highly debated, with growing interest in increasing tree cover and other land use changes, alongside a desire to maintain traditional land use patterns and practices. Treescape expansion is likely to result in synergies and trade‐offs between different outcomes, so integrating stakeholder preferences
Melissa Minter, Susan Baker, Euan Bowditch, Sheena Carlisle, Natasha Constant, Alix Syder, Tom Finch   +6 more
wiley   +1 more source

Rewilding's technological experiments: Virtual reality and scalable narratives of rewilding in the Scottish highlands

People and Nature, EarlyView.
Abstract Depictions of rewilded landscapes reveal the underlying principles shaping the future of rewilding. This paper analyses a virtual reality (VR) model of a rewilding project in the Scottish Highlands that is advertised as a vision of a rewilded nature in 50 to 100 years' time.
Nick Sidwell
wiley   +1 more source

HAYSTAC: A Bayesian framework for robust and rapid species identification in high-throughput sequencing data.

PLoS Computational Biology, 2022
Identification of specific species in metagenomic samples is critical for several key applications, yet many tools available require large computational power and are often prone to false positive identifications.
Evangelos A Dimopoulos, Alberto Carmagnini, Irina M Velsko, Christina Warinner, Greger Larson, Laurent A F Frantz, Evan K Irving-Pease   +6 more
doaj   +1 more source

Effect of Testosterone Treatment on Leucocyte Telomere Length in Men: Results From a Randomised Placebo‐Controlled Trial

Andrology, EarlyView.
ABSTRACT Background Lower testosterone concentrations in older men are associated with poorer health outcomes. Objective We examined whether, on a background of lifestyle intervention, testosterone treatment modulates leucocyte telomere length, a postulated marker of biological ageing, in overweight men with impaired glucose tolerance (IGT) or newly ...
Bu B. Yeap, Jennie Hui, Kristy P. Robledo, Gillian Arscott, Mathis Grossmann, David J. Handelsman, Warrick J. Inder, Bronwyn G. A. Stuckey, Alicia J. Jenkins, Karen Bracken, John P. Beilby, Gary A. Wittert   +11 more
wiley   +1 more source