The first genotyping of grey squirrels sampled from Italy and the UK shows a direct link between their genetic diversity and their ability to invade new environments.
Plants & Animals
Jun 5, 2014
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(Phys.org) —It is generally agreed that the ancestors of modern Native Americans were Asian peoples who migrated to North America from Siberia and Beringia – a region proximate to the Bering Strait, Bering Sea and Chukchi ...
The most supported traditional hypothesis points out that the earliest well-established human culture in the North American continent were the Clovis, a population of hunters who arrived about 13,000 years before present ...
Biotechnology
Apr 18, 2013
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A genetic analysis by Baylor University biologists suggests that the stocking of Florida bass in Texas reservoirs impacts bass populations far beyond the actual stocking location.
Ecology
Mar 7, 2013
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After experiencing years of population decline on the West Coast, a recent study examining fisher populations found that—at least in the southern Sierra Nevada—the animal's numbers appear to be stable.
Ecology
Jan 28, 2013
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An international team of researchers including Svante Pääbo and Qiaomei Fu of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, sequenced nuclear and mitochondrial DNA that had been extracted from ...
Archaeology
Jan 21, 2013
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In contrast to climate change, there is no coordinated global system in place for measuring and reporting on biodiversity change or loss. An international team of biologists is now addressing this gap.
Ecology
Jan 17, 2013
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(Phys.org)—Medieval Afghanistan, Iran and the one-time Soviet Central Asian states were frontiers in flux as the Islamic Caliphate spread beyond the Arabian Peninsula in the seventh through 10th centuries.
Social Sciences
Jan 2, 2013
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Landscapes with large amounts of paved roads and impervious construction have lower numbers of ground-nesting bumblebees, which are important native pollinators, a study from The University of Texas at Austin and the University ...
Plants & Animals
Dec 24, 2012
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(Phys.org)—Indiana University researchers have found evidence that a species of songbird that recently colonized an urban environment exhibits less stress and bolder behavior as compared to counterparts living in the forest. ...
Plants & Animals
Dec 3, 2012
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