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Secrets of the Spring‐Keepers: Phylogeographic Analyses of a Freshwater Amphipod Uncover Dispersal Pathways in Eastern North AmericaNARA Subscribed
Aim While the Nearctic freshwater amphipod Gammarus minus is known for its adaptation to groundwater environments, relatively little is known about other aspects of the evolutionary history of the species throughout its range, which spans much of the eastern United States. As a result, we investigated the phylogeography of the species. Location Eastern United States. Taxon Gammarus minus . Methods Sequence data for two nuclear...
SNAPSHOT USA 2024: Year 6 of the Coordinated National Camera Trap Survey of the United StatesNARA Subscribed
Motivation SNAPSHOT USA is an annual, multi‐contributor camera trap survey of mammals across the United States. The growing SNAPSHOT USA dataset is intended for tracking the spatial and temporal responses of mammal populations to changes in land use, land cover and climate. These data will be useful for exploring the drivers of spatial and temporal changes in relative abundance and distribution, as well as the impacts of speci...
Unexpected pathway for intercontinental movement into the Nearctic revealed by phylogenetic analysesNARA Subscribed
Much of North America's freshwater biodiversity is derived from Palearctic lineages. Isopods of the Holarctic family Asellidae are among the most widespread and diverse freshwater crustaceans, but Nearctic species are poorly studied. We examined the evolutionary history of the family, utilizing Sanger sequencing of mitochondrial and nuclear DNA, and both maximum likelihood and Bayesian inference. The genera Calasellus and Salm...
Aim Members of the amphipod genus Gammarus have served as an excellent model for testing biogeographic hypotheses given the number of species within the genus and its unique history, with multiple taxa transitioning from marine to freshwater environments independently. However, while attention has been placed on Palearctic Gammarus , little is known about members in the Nearctic. Given trends observed within the genus, Gammaru...
SNAPSHOT USA 2019–2023: The First Five Years of Data From a Coordinated Camera Trap Survey of the United StatesNARA Subscribed
Motivation SNAPSHOT USA is an annual, multicontributor camera trap survey of mammals across the United States. The growing SNAPSHOT USA dataset is intended for tracking the spatial and temporal responses of mammal populations to changes in land use, land cover and climate. These data will be useful for exploring the drivers of spatial and temporal changes in relative abundance and distribution, as well as the impacts of specie...
Habitat conditions and not moss composition mediate microbial community structure in Swiss peatlandsNARA Subscribed
Peatlands, one of the oldest ecosystems, globally store significant amounts of carbon and freshwater. However, they are under severe threat from human activities, leading to changes in water, nutrient and temperature regimes in these delicate systems. Such shifts can trigger a substantial carbon flux into the atmosphere and diminish the water‐holding capacity of peatlands. Microbes associated with moss in peatlands play a cruc...
Reading tea leaves worldwide: Decoupled drivers of initial litter decomposition mass‐loss rate and stabilizationNARA Subscribed
The breakdown of plant material fuels soil functioning and biodiversity. Currently, process understanding of global decomposition patterns and the drivers of such patterns are hampered by the lack of coherent large‐scale datasets. We buried 36,000 individual litterbags (tea bags) worldwide and found an overall negative correlation between initial mass‐loss rates and stabilization factors of plant‐derived carbon, using the Tea...
We aim to elucidate how miRNAs regulate the mRNA signature of atrial fibrillation (AF), to gain mechanistic insight and identify candidate targets for future therapies. We present combined miRNA–mRNA sequencing using atrial tissues of patient without AF ( n = 22), with paroxysmal AF ( n = 22) and with persistent AF ( n = 20). mRNA sequencing previously uncovered upregulated epithelial to mesenchymal transition, endothelial cel...
Importance of timely metadata curation to the global surveillance of genetic diversityNARA Subscribed
Genetic diversity within species represents a fundamental yet underappreciated level of biodiversity. Because genetic diversity can indicate species resilience to changing climate, its measurement is relevant to many national and global conservation policy targets. Many studies produce large amounts of genome‐scale genetic diversity data for wild populations, but most (87%) do not include the associated spatial and temporal me...