Freeze-tolerant insects draw on a range of protectant molecules

Proceedings of the Royal Society B: Biological Sciences Published March 20, 2019 17:01 EDT (Brief from the Royal Society) Low temperatures kill most animals, but some insects can survive ice forming inside their bodies. Researchers tested how small-molecule cryoprotectants work the freeze-tolerant spring field cricket, showing that different cryoprotectants have unique impacts on freeze tolerance. The information […]

Trouble in the OR: Clinicians report assault, verbal abuse, intimidation

Canadian Journal of Anesthesia Published March 19, 2019 21:00 EDT Canadian and U.S. clinicians experienced almost 1,000 physical assaults in operating rooms in 2012–2014. Verbal threats and other forms of intimidation occurred. Clinicians working as nurses, working in privately funded clinics, or who were young, inexperienced, female, or non-heterosexual were most likely to experience abuse. A […]

Daily use and high-potency cannabis linked to higher rates of psychosis

The Lancet Psychiatry Published March 19, 2019 19:30 EDT (News release from The Lancet) In cities where high potency cannabis is widely available, such as London and Amsterdam, a significant proportion of new cases of psychosis are associated with daily cannabis use and high-potency cannabis. The authors estimate that one in five new cases (20.4%) of psychosis […]

Why some young adults engage in unsafe sex

Journal of Sex Research Published March 19, 2019 00:00 EDT (News release from Taylor & Francis Group) Gender, sexual orientation, and the desire to form lasting romantic relationships appear to influence sexual risk-taking among young adults. This is the first study to directly compare how heterosexual men, heterosexual women, and homosexual men differ in their approach […]

Otters leave their own archaeological records

Scientific Reports Published March 14, 2019 14:00 EDT (News release from Nature Research Press) Sea otters leave distinct wear patterns on the rocks that they use to break open hard-shelled food. The patterns, which can be recognised using archaeological techniques, could help trace locations of previous sea otter populations that are now extinct. Images and video […]

Catastrophic dynamics limit Atlantic cod recovery

Proceedings of the Royal Society B: Biological Sciences Published March 13, 2019 17:01 ET (Brief from the Royal Society) Researchers applied a model from catastrophe theory to Atlantic cod (Gadus morhua) stocks. The resulting patterns of restoration reflect the combined effects of fishing pressure and temperature increase that limit the species’ recovery potential. These dynamics help […]

Tool tracks gentrification across cities

PLOS One Published March 13, 2019 (News release from PLOS) Researchers trained a computer model to search Google Street View’s images of Ottawa properties from 2007 to 2016 for changes that could indicate gentrification – for example, new fences, repainting, or new windows. The results were almost as accurate at detecting gentrification indicators as a human […]

Mapping the effects of guns, snares and bulldozers on biodiversity

PLOS Biology Published March 12, 2019 14:00 ET (News release from PLOS) Researchers mapped the distribution of destructive human activities in locations occupied by 5,457 threatened birds, mammals and amphibians across the globe. They found 1,237 species impacted by threats to than 90 per cent of their habitat, and 395 species impacted by threats across their entire […]

Major molecular changes unfold during newborns’ first week of life

Nature Communications Published March 12, 2019 (News release from UBC) A new technique that extracts huge amounts of data from a tiny amount of newborn blood reveals molecular changes in the first week of newborn life, including what genes are turned on, what proteins are being made, and how metabolism changes. The findings establish a common developmental […]

Moralizing gods, impartiality and religious parochialism linked to greater cooperation

Proceedings of the Royal Society B: Biological Sciences Published March 6, 2019 17:01 ET (Brief from the Royal Society) People who believe in punishing gods are more likely to cooperate with each other. Researchers administered behavioral experiments and interviewed a sample of 2,228 participants from 15 diverse populations. They found that higher ratings of gods as […]

Study confirms and quantifies Zika–microcephaly link in Brazil

PLOS Medicine Published March 5, 2019 14:00 ET (News release from PLOS) Women infected with Zika virus early in pregnancy are almost 17 times more likely to have a child with microcephaly, abnormal smallness of the head. Researchers used national reporting databases in Brazil to assemble information on nine known or hypothesized causes of microcephaly for all […]

Lichens provide snapshot of old-growth forest conservation value

Frontiers in Ecology and the Environment Published March 5, 2019 00:00 ET (News release from the Canadian Museum of Nature) Suites of lichens associated with known old-growth areas can be used to help scientists and communities decide which areas to keep and which to cut. The scorecard of lichen species could be used as a tool […]

Creatures of the (deepest) deep eating microplastics

Royal Society Open Science Published February 27, 2019 17:01 ET (Brief from the Royal Society) Researchers found that marine animals living in the six deepest parts of the ocean ingest man-made plastic fibres and synthetic particles. The results challenge the idea that the deep oceans are free from human impacts and man-made debris. Lead author: Alan Jamieson, […]

Climate-related seafood declines threaten First Nations health

PLOS One Published February 27, 2019 14:00 ET Traditionally harvested seafood remains fundamental to the diet and health of coastal BC First Nations. Potential shifts due to climate-related declines in seafood consumption may lead to poor nutrition and health. Strategies to improve access to seafood harvest potential in coastal communities are needed to ensure nutritional health […]

3,500 years of B.C. shellfish farming

PLOS One Published February 27, 2019 14:00 ET (News release from PLOS) The Indigenous Peoples of British Columbia have been harvesting shellfish from specially constructed clam gardens for at least 3500 years. This research offers new methods for tracking the history and development of mariculture. Authors: Nicole Smith, Hakai Institute, B.C. – smithnf@gmail.com; Dana Lepofsky, Simon Fraser University […]

Swimming speed affects benefits of schooling

Royal Society Open Science Published February 20, 2019 17:01 ET (Brief from the Royal Society) As groups of fish swam faster, they form more elongated and more linearly aligned groups. Information flow between individuals increased at faster speeds and when individuals were more aligned within the linear group formations, supporting the group’s collective functioning and energy […]

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