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Spatio-temporal dynamics of Lagos flooding: comparative multi-parameter analysis of 2011 and 2021 eventsNARA Subscribed
This study examines changes in flooding characteristics in Lagos, Nigeria, through comparative analysis of major flooding events in July 2011 and July 2021. Satellite data from NASA’s IMERG and MODIS platforms were used to analyse precipitation patterns, aerosol concentrations, and land surface temperatures through spatial autocorrelation and regression analysis. The comparison reveals substantial changes in flood characterist...
In Situ Evidence for Quantitative Nitrogen Fixation in a Temperate Perennial Grass EcosystemNARA Subscribed
Biological nitrogen (N) fixation is an important terrestrial ecosystem N input that occurs in both symbiotic and non-symbiotic associations with plants. Non-symbiotic nitrogen fixation (NSNF) has been documented in many places, including soils, but the magnitude of its inputs, along with drivers of NSNF rates, remains uncertain due to methodological challenges. We measured NSNF by applying a 15 N 2 tracer to field mesocosms th...
Impacts of Quaternary Climate History on the Biogeography of Specialized Butterflies in the Great Basin of North AmericaNARA Subscribed
Aim Dramatic Quaternary climate fluctuations impacted the evolutionary history and contemporary biogeography of many residents of the Great Basin Desert of western North America. This study investigates the historical biogeographic processes that shaped the contemporary distribution of genetic variation in a polytypic group of specialized butterflies that are residents of unique dune and playa habitats. Many of the subspecies...
A global ranking of the relative vulnerability of marine mammals to macroplastic pollutionNARA Subscribed
Plastic pollution poses a threat to marine mammals across the globe. However, quantitative research on the impacts of plastic pollution in marine mammals is lacking because of the ethical and practical issues that prevent experimentation on these species and the opportunistic nature of observational studies. Trait‐based vulnerability indices offer a way to estimate the relative vulnerability of marine species to environmental...
Non‐native pink salmon Oncorhynchus gorbuscha carcasses benefit native benthic macroinvertebratesNARA Subscribed
The invasion of the North Atlantic by pink salmon Oncorhynchus gorbuscha has raised concerns regarding their impact on coastal rivers. Although the influence of marine‐derived nutrients from returning adult O. gorbuscha on rivers in their native range has received much attention, the ecological consequences of invasive O. gorbuscha for ecosystems outside the native range are largely unknown. To investigate the impact on the de...
The Integration of Fire Ecology and Freshwater Ecosystems in North America: Knowledge Gaps and Research NeedsNARA Subscribed
Wildfires, unplanned fires that start and spread under the influence of weather and fuel composition, are increasing in frequency, duration, and severity across North America. While wildfires are one component of wildland fire, a broader natural process in many ecosystems, their changing behavior poses growing ecological and management challenges. Although wildfire is widely recognized as an important disturbance, empirical re...
Diversity and functional group composition drive biogeographic patterns in marine biogenic structural complexityNARA Subscribed
Biogenic structural complexity is a key driver of biodiversity and ecosystem functioning, yet its ecological and environmental determinants remain poorly understood across broad biogeographic scales. Here, we conducted standardized 90‐day field experiments at 16 coastal sites, spanning a 41‐degree latitudinal gradient, using naturally assembled marine fouling communities on settlement panels. We measured rugosity as our metric...
Interpretable deep learning reveals spatiotemporal MRI features of brain aging that align with neurodegenerationNARA Subscribed
Cortical thinning and atrophy are hallmarks of brain aging that have been characterized using magnetic resonance imaging (MRI). Brain aging involves many neuroanatomic features whose effects on brain structure remain unexplored. To address this challenge, we trained interpretable deep neural networks (DNNs) to estimate brain age (BA) from T 1 -weighted ( T 1 w) MRI. By identifying MRI features unapparent to humans, DNNs can fi...
As passive acoustic monitoring (PAM) datasets expand, studies increasingly use automated detectors to analyze baleen whale presence. However, detector errors like false positives (impacting precision, P; proportion of detected calls that are correct), and false negatives (impacting recall, R; proportion of available calls successfully detected) necessitate manual validation. Here, we demonstrate a tiered detection and validati...
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...
Realm Specific Adaptations Lead to Contrasting Global Patterns in Submerged and Emergent Aquatic Plant HeightNARA Subscribed
Aim This study aims to evaluate whether the trait–environment relationships known for terrestrial plant height extend to freshwater macrophytes, and to identify the primary environmental factors influencing global height patterns in emergent and fully submerged aquatic plants. Location Global. Time Period Species occurrence records and height measurements compiled from 1931 to 2022. Major Taxa Studied Freshwater plant species....
Alzheimer’s disease (AD) disproportionately affects women and carriers of the apolipoprotein E ε4 allele (APOE4), yet little is known about how sex and APOE interact to influence white matter (WM) integrity during disease progression. We integrated diffusion MRI and matched blood transcriptomic data to investigate these interactions and their underlying biological mechanisms. WM microstructure was quantified using diffusion te...