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Community‐informed and codesigned research to understand the impacts of railways on wildlifeNARA Subscribed
Trains cause mortalities of several animal species, but the ecological impacts of railways are understudied. Most research on wildlife–train collisions has focused on large mammals, but understanding railway‐specific risks for underrepresented taxa, especially vulnerable species, is important for developing effective mitigation strategies. Based on the concerns and interests of 2 Anishinaabek communities—Shawanaga First Nation...
Deconvolving mechanisms of particle flux attenuation using nitrogen isotope analyses of amino acidsNARA Subscribed
Particulate organic matter settling out of the euphotic zone is a major sink for atmospheric carbon dioxide and serves as a primary food source to mesopelagic food webs. Degradation of this organic matter encompasses a suite of mechanisms that attenuate flux, including heterotrophic metabolic processes of microbes and metazoans. The relative contributions of microbial and metazoan heterotrophy to flux attenuation, however, hav...
Prolonging survival in good health is a fundamental societal goal. However, the leading determinants of disability-free survival in healthy older people have not been well established. Data from ASPREE, a bi-national placebo-controlled trial of aspirin with 4.7 years median follow-up, was analysed. At enrolment, participants were healthy and without prior cardiovascular events, dementia or persistent physical disability. Disab...
The value of climate-resilient seeds for smallholder adaptation in sub-Saharan AfricaNARA Subscribed
Climate change is threatening food security in many tropical countries, where a large proportion of food is produced by vulnerable smallholder farmers. Interventions are available to offset many of the negative impacts of climate change on agriculture, and they can be tailored to local conditions often through relative modest investments. However, little quantitative information is available to guide investment or policy choic...
Large uncertainty in carbon uptake potential of land‐based climate‐change mitigation effortsNARA Subscribed
Most climate mitigation scenarios involve negative emissions, especially those that aim to limit global temperature increase to 2°C or less. However, the carbon uptake potential in land‐based climate change mitigation efforts is highly uncertain. Here, we address this uncertainty by using two land‐based mitigation scenarios from two land‐use models ( IMAGE and MA g PIE ) as input to four dynamic global vegetation models ( DGVM...
Deep‐sea fishes prey on benthic fauna and scavenge on the carcasses of surface‐living animals. Few studies have addressed the relative importance of each trophic pathway. Recent documentation of inter‐decadal fluctuations in macrourid densities in the abyssal Pacific, related to changing food supplies, hastens the need for information. We conducted stomach content and stable isotope analyses of two abyssal macrourids, carrion...
Supersaturated N2O in a perennially ice‐covered Antarctic lake: Molecular and stable isotopic evidence for a biogeochemical relictNARA Subscribed
The east lobe of Lake Bonney, a permanently ice‐covered lake in the McMurdo Dry Valleys, Antarctica, has a mid‐depth maximum N 2 O concentration of 43.3 [mol N L ‐1 (>700,000% saturation with respect to air), representing one of the highest concentrations reported for a natural aquatic system. δ 15 N and δ 18 O measurements indicate that this is the most isotopically depleted N 2 O yet observed in a natural environment (minimu...
Phytoplankton community response to reservoir aging, 1968–92NARA Subscribed
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