The availability of a key prey for seabirds has changed dramatically over the past three decades, particularly in winter, with possible consequences for their population numbers. The long-term study, led by the Centre for Ecology & Hydrology, looked at the year-round diet of a North Sea seabird, the European shag.
In a follow-up to their groundbreaking study, Baylor University researchers were able to reconstruct baleen whales' lifetime stress response to whaling and other manmade and environmental factors spanning nearly 150 years.
Water which has been contaminated with mercury and other toxic heavy metals is a major cause of environmental damage and health problems worldwide. Now, researchers from Chalmers University of Technology, Sweden, present a totally new way to clean contaminated water, through an electrochemical process. The results are published in the scientific journal Nature Communications.
When consumers turn on a faucet, they expect the drinking water that gushes out to be safe. A new report in ACS' journal Environmental Science & Technology found that US public-supply tap water generally meets all enforceable standards. However, routine testing for most prospective contaminants is carried out before water is distributed, not where it's used, and the report indicates some consumers are exposed to contaminant mixtures that aren't commonly monitored.
Plant root hairs increase the roots surface area enabling it to absorb more water and nutrients. Now, researchers have discovered how the hairs grow straight and long. To develop an elongated structure, cell expansion on the sides of the root hair must be suppressed as the tip elongates. If it wasn't for the suppression mechanism, the root would bulge out like a balloon and be unable to form the elongated tubular structure.
By examining the tissues at a subcellular level, the researchers discovered yelloweye rockfish were able to immobilize several potentially toxic elements within their liver tissues (cadmium, lead, and arsenic) thus preventing them from interacting with sensitive parts of the cell. But mercury was found in concentrations known to be toxic - and most of it was in sensitive sites, such as mitochondria and enzymes, within liver cells.
Research at the Earlham Institute into one of the 'genetic orchestra conductors', microRNAs, sheds light on our selectively guided evolution of domestic pets and farmyard animals such as dogs and cows.
Scientists have discovered that tropical fish can control their gut microbes to better survive extremes of temperature, a study in eLife reveals.
Heavily armed, new species of tomato genus Solanum is not the villain but the 'star' in its ecosystem in Brazil. Despite its large thorn formations and sticky stems, it turns out that newly discovered Solanum kollastrum plays important role in the life of local pollinators and is a possible food source to bat species in the region. The study was published in the open access journal PhytoKeys.
A new scientific article shows that 25 European waterbird species can change their wintering areas depending on winter weather. Warm winters allow them to shift their wintering areas northeastwards, whereas cold spells push birds southwestwards.