US Olympic and Paralympic athletes and staff who traveled to Rio de Janeiro, Brazil, for the 2016 Summer Games did not become infected with Zika virus but did test positive for other tropical, mosquito-borne viral infections, including West Nile Virus, Dengue Fever and Chikungunya.
The Boreal forest is essential to Canada and the world, storing carbon, purifying water and air and regulating climate. But keeping tabs on the health of this vulnerable biome has proven to be a painstaking and time-consuming undertaking – until now. Cutting-edge DNA metabarcoding technology can help speed up and improve the monitoring process, according to a new study.
When rampant white-tailed deer graze in forests, they prefer to eat native plants over certain unpalatable invasive plants, such as garlic mustard and Japanese stiltgrass. These eating habits lower native plant diversity and abundance, while increasing the proportion of plant communities made up of non-native species, according to a new study.
Researchers have uncovered differences in the bacterial composition of breast tissue of healthy women vs. women with breast cancer. The research team has discovered for the first time that healthy breast tissue contains more of the bacterial species Methylobacterium, a finding which could offer a new perspective in the battle against breast cancer.
Understanding how parasitoids and hosts interact, and how their interactions change with human influence, is critically important to understanding ecosystems. New research finds mathematical models can predict complex insect behavioral changes using a simple description of insect preferences.
The cell cycle is how a cell passes its DNA but ceases if the DNA is damaged, as otherwise it risks passing this damage to daughter cells. Scientists report a new molecular mechanism that explains how this cessation occurs. The study shows that the transcription factor family MYB3R is normally degraded, but accumulates upon DNA damage to prevent cell cycle progression.
Gradual environmental changes due to eutrophication and global warming can cause a rapid depletion of oxygen levels in lakes and coastal waters. A new study shows that microorganisms play a key role in these disastrous regime shifts.
Scientists have resolved a paradox of viral infection. They’ve identified how a viral product can both trigger an immune response aimed at eliminating the virus or, conversely, allow the virus to survive and persist.
Eradication of guinea worm disease (dracunculiaisis), targeted by the World Health Organization (WHO) for the year 2015, is finally within reach, with only 25 reported human transmissions in 2016. Now, researchers have re-asserted the cost-effectiveness of the global Guinea Worm Eradication Programme (GWEP), some 30 years after it started.
After 26 years, the world’s longest-running experiment to discover how warming temperatures affect forest soils has revealed a surprising, cyclical response: Soil warming stimulates periods of abundant carbon release from the soil to the atmosphere alternating with periods of no detectable loss in soil carbon stores. The study indicates that in a warming world, a self-reinforcing and perhaps uncontrollable carbon feedback will occur between forest soils and the climate system, accelerating global warming.