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This study investigates how food availability aligns with nutritional requirements of the snail Lunella smaragda , a potential biological control agent for managing biofouling in recreational vessel hubs. Biofouling communities were assessed during two contrasting seasons to gain insights into the quantity and quality of food available for agent consumption. Nutritional availability was higher in spring/summer and increased wi...
To review recent advances in research on per- and polyfluoroalkyl substances (PFAS) and outline priority steps for risk assessment in consumer health protection, the German Federal Institute for Risk Assessment (BfR) organized the ‘International PFAS Conference’ in Berlin in October 2025. Building on the European Food Safety Authority's (EFSA) opinion in 2020, global research activities on PFAS have intensified. The conference...
Resurrecting habitat fragmentation as a process over timeNARA Subscribed
Capelin ( Mallotus spp.) are pelagic forage fishes that can be especially abundant in sub‐arctic marine ecosystems and are important prey for upper trophic‐level consumers. Abundance and distribution of capelin have been linked to ocean temperature, but the magnitude and directionality of thermal sensitivity can vary regionally. We used data spanning two decades (2002–2022) from autumn surface trawl surveys in three Alaska lar...
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...
Anaemic Streams: Iron and Essential Trace Metals Frequently Limit Primary Producer BiomassNARA Subscribed
Metals are essential for microbial metabolism, yet their role as limiting nutrients in freshwater streams remains poorly understood. We quantified the prevalence of metal and nutrient (co‐)limitation of primary producers in 41 streams. Metal limitation was widespread with Fe limitation eliciting the strongest and most consistent biomass responses (50% of streams). Zn limitation was also common (33% of streams), marking the fir...
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...
The availability and ingestion of microplastics by an intertidal fish is dependent on urban proximityNARA Subscribed
Investigating the impacts of the plastics on our environment, and the potential adverse effects on fauna, has become increasingly important. While a number of studies have shown that microplastic levels in sediments generally increase with proximity to urban regions, fewer studies have investigated how vertebrate ingestion rates vary with urban proximity. Here we explore how urban proximity influences plastic abundance in sedi...
An invasive prey alters local and landscape contributions of sources and sinks for an endangered predatorNARA Subscribed
Source‐sink dynamics are a cornerstone of theory for spatially structured populations. Despite long‐standing interest, understanding temporal variation in source‐sink dynamics in wild populations remains rare. Biological invasions have the potential to alter source‐sink dynamics for native species, which may change over time as invasions proceed. We used 28 years of data on reproduction, movement, and survival to estimate annu...