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The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation following the Last Glacial Maximum (LGM) using cosmogenic beryllium‐10 ( 10 Be) surface‐expo...
Aim Homogenisation (decreasing beta‐diversity) among biological assemblages is often interpreted as being caused by already‐widespread species increasing. The link between individual species level trends and homogenisation between assemblages, however, has not been fully addressed, with most studies focused solely on either assemblage level or species level changes. Here we aim to test the widely held hypothesis that homogenis...
Dietary niches of endemic and range-expanding salmonids in the western Canadian ArcticNARA Subscribed
The cumulative effects of climate change are impacting Arctic species and facilitating increased interactions between Arctic and sub-Arctic species. Anadromous Arctic char Salvelinus alpinus and the northern Dolly Varden Salvelinus malma malma are endemic Arctic fishes vulnerable to the impacts of climate change, yet our understanding of the dietary niches they occupy is limited. The recent increased occurrence of sub-Arctic P...
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...
Genetic and transcriptional dissection of resistance to Claviceps purpurea in the durum wheat cultivar GreenshankNARA Subscribed
Key message Four QTL for ergot resistance (causal pathogen Claviceps purpurea ) have been identified in the durum wheat cultivar Greenshank. Abstract Claviceps purpurea is a pathogen of grasses that infects flowers, replacing the seed with an ergot sclerotium. Ergot presents a significant problem to rye, barley and wheat, in particular hybrid seed production systems. In addition, there is evidence that the highly toxic alkaloi...
The bacterial endosymbiont of aphids, Buchnera aphidicola , often provides amino acids to its hosts. Plasmid amplification of leucine ( leuABCD ) and tryptophan ( trpEG ) biosynthesis genes may be a mechanism by which some Buchnera over‐produce these nutrients. We used quantitative polymerase chain reaction to assess the leuABCD / trpEG copy variability within Uroleucon ambrosiae , an aphid with a wide diet breadth and range....
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