The research has revealed that despite few animals or plants surviving the millennia of freezing cold and ice, the Irish stoats had real staying power. The Irish lineage of these small carnivores that eat mice, rabbits and birds is unique according to the research.
The scientists reached their conclusions by studying the wiry mammal’s DNA collected from museum collections and gamekeepers.
Explaining the research findings, Dr Robbie McDonald, Manager of Quercus at Queen’s, explained: “These tenacious carnivores probably survived the extreme cold at the peak of the last Ice Age by living under the snow and eating lemmings, just as they do in Greenland today.
“Irish stoats are a diverse and ancient lineage, this study provides the first compelling evidence that a species of mammal found in Ireland today actually survived throughout the worst of the Ice Age weather.
“The Irish fauna is a very unusual mix of native and introduced species, but we tend to overlook the unique nature of the Irish gene pool of many species, such as stoats and hares. This work helps identify which species should be a priority for conserving the Irish natural heritage.”
Genetic research has found that the Irish lineage of stoats is about 23,500 years old, compared to the British lineage, which is about 12,000 years old.
Stoats are found over a wide range of temperature conditions ranging from warm temperate to artic. While they currently occur in the high Artic of Greenland and Canada, feeding on lemmings, it is known from fossils that lemmings survived in Ireland providing a potential food supply during the Last Glacial Maximum (LGM).
Lisa Mitchell | alfa
Cascading use is also beneficial for wood
11.12.2017 | Technische Universität München
The future of crop engineering
08.12.2017 | Max-Planck-Institut für Biochemie
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
12.12.2017 | Physics and Astronomy
12.12.2017 | Earth Sciences
12.12.2017 | Power and Electrical Engineering