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Longitudinal lipidomic markers of cardiac aging and risk of coronary heart disease in American Indians: the Strong Heart Family StudyNARA Subscribed
Age-related decline in left ventricular (LV) diastolic function is a hallmark of cardiac aging and an early precursor to cardiovascular disease. While dyslipidemia is a known driver of coronary heart disease (CHD), the molecular pathways linking lipid metabolism to cardiac aging and subsequent CHD risk remain poorly understood. Furthermore, longitudinal lipidomic profiling of cardiac aging in large human populations has not be...
Using Drone‐Derived Imagery to Describe Prey Sharing Behaviors in Two Piscivorous Resident Killer Whale PopulationsNARA Subscribed
Cooperative foraging occurs across diverse taxa and facilitates prey acquisition and social learning, particularly when prey is shared among group members. In Resident killer whales ( Orcinus orca ater ), prey sharing is central to how individuals acquire salmonid prey, yet current research has relied primarily on boat‐based observations. Using 10 years of drone‐based imagery, we examined prey sharing behaviors in two populati...
Bacteria are fundamental to coral health and resilience, though a dearth of knowledge exists on the formation of the coral microbiome in early life history stages. Although this initial microbial consortium is thought to hold key roles throughout development, its sparsity is easily obscured by environmental background microbiota. This opacity renders accurate studies of the early coral microbiome difficult, and limits applicat...
Plan Bee: genetic diversity in an Australia honey bee (Apis mellifera) breeding programNARA Subscribed
Our reliance on honey bees for pollination has lead to greater uptake of modern animal breeding methods around the world to improve bee health and productivity. As breeding can result in loss of genetic diversity, it is worth considering the standing genetic diversity in breeding populations from the outset. A bee breeding program (Plan Bee) commenced in Australia in 2020. This study sought to quantify the genetic diversity of...
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...
Sprinkler irrigation timing drives water loss tradeoffs in an urban, semi-arid environmentNARA Subscribed
Nighttime scheduling of sprinkler irrigation is a widespread strategy to conserve water by reducing wind drift and evaporation losses (WDEL). Water intercepted by a canopy and evaporated during daytime irrigation events, however, may decrease gross water loss and ease heat stress, while microclimate changes from nighttime irrigation may be less consequential. The objectives were to determine whether water savings exist when co...
Unprecedented Burning in Tropical Peatlands During the 20th Century Compared to the Previous Two MillenniaNARA Subscribed
Tropical peatland wildfire incidence has risen in recent decades, driven by drainage for land use and intensified by severe droughts with global climate change. These disturbances have altered vegetation structure, disrupted ecosystem functioning, and increased carbon emissions, particularly in Southeast Asia. However, the long‐term history and characteristics of wildfires in tropical peatlands remain largely unknown. Here, we...
Dispersal is one of the most important aspects of animal behavior and can have far‐reaching consequences for organismal ecology and evolution. Despite recent theoretical advances in understanding why individuals within the same population vary in dispersal behavior, relatively few studies have empirically evaluated the long‐term causes and consequences of variable dispersal within natural populations. In this study, we used li...
Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species by assessing the vulnerability of 256 marine megafauna species to 23 at‐sea threat...
The volume of explosive products erupted during the ~ 1700 CE eruption of Sii Aks (Tseax), CanadaNARA Subscribed
Small mafic explosive eruptions are a globally common and frequent eruption type, and understanding the size of past eruptions is key to preparing for future impacts. However, Canadian volcanoes have received relatively little investigation due in part to their location in remote and challenging terrain. Here, we measured tephra thicknesses from 96 locations for the ~ 1700 CE eruption of Sii Aks (Tseax) in the Northern Cordill...
Comparison of Corynespora cassiicola populations from Amazonas and USA isolates from different hosts, based on SSR markersNARA Subscribed
Corynespora cassiicola poses a significant global threat in tropical and subtropical regions, infecting over 400 host plant species and causing substantial agricultural losses in crops such as cotton, papaya, tomatoes, and soybeans. In the Amazonian state of Amazonas, Brazil, and West USA, environmental conditions are highly conducive to C. cassiicola outbreaks, leading to target spot disease and resulting in severe economic a...