Years ago the city of Grand Rapids, Michigan, changed its policy on dealing with the emerald ash borer (EAB), a pretty but deadly insect that has killed many of the state’s ash trees.
Instead of cutting down all ash trees, they allowed residents to treat high-value trees with insecticides at their own expense, says Kathy Quick, an assistant professor in the University of Minnesota’s Humphrey School of Public Affairs who was working in Grand Rapids at the time.(more…)
SACRAMENTO, Calif. — A study on frogs in remote Sierra Nevada mountain habitats including Yosemite National Park and Giant Sequoia National Monument, detected concentrations of pesticides in frog tissue that potentially came from California’s Central Valley sources.
“Our results show that current-use pesticides, particularly fungicides, are accumulating in the bodies of Pacific chorus frogs in the Sierra Nevada,” says Kelly Smalling, a research hydrologist with the U.S. Geological Survey and lead author of the study. “This is the first time we’ve detected many of these compounds, including fungicides, in the Sierra Nevada. The data generated by this study support past research on the potential of pesticides to be transported by wind or rain from the Central Valley to the Sierras.” (more…)
AUSTIN, Texas — For the first time, scientists have documented an acceleration in the melt rate of permafrost, or ground ice, in a section of Antarctica where the ice had been considered stable. The melt rates are comparable with the Arctic, where accelerated melting of permafrost has become a regularly recurring phenomenon, and the change could offer a preview of melting permafrost in other parts of a warming Antarctic continent.
Tracking data from Garwood Valley in the McMurdo Dry Valleys region of Antarctica, Joseph Levy, a research associate at The University of Texas at Austin’s Institute for Geophysics, shows that melt rates accelerated consistently from 2001 to 2012, rising to about 10 times the valley’s historical average for the present geologic epoch, as documented in the July 24 edition of Scientific Reports. (more…)
A study published in the journal Animal Behaviour found that the noise of passing ships disrupts feeding for the common shore crab.
Perhaps worse, the team from the Universities of Exeter and Bristol also found that when threatened, crabs took longer to retreat to shelter and lost their natural ‘play dead’ behaviour.
In coastal seas around the world noise caused by humans is a dominant feature, with construction and transportation fundamentally modifying ocean soundscapes.
Working with the same common shore crabs that children delight in catching on crablines in UK harbours, the team found ecologically-critical effects of ship noise-playback on behaviour. (more…)
Have you ever dropped a stick into a river and wondered where it might go if it floated all the way downstream? Now you can trace its journey using Streamer – a new on-line service from the National Atlas of the United States®.(more…)
China’s 34-year-old Environmental Protection Law was created when it made sense for legislators in a developing country to trade environmental well-being for a boost to the gross domestic product.
Today, China wrestles with pollution that is leaving its citizens gasping for clean air, worried about water quality and concerned for the safety of the food grown there. In the current issue of Science, a team of researchers, including a Michigan State University sustainability expert, offers guidelines for revising the EPL to protect both humans and nature. (more…)
Scientists have discovered a diverse multitude of microbes colonizing and thriving on flecks of plastic that have polluted the oceans—a vast new human-made flotilla of microbial communities that they have dubbed the “plastisphere.”
In a study recently published online in Environmental Science & Technology, the scientists say the plastisphere represents a novel ecological habitat in the ocean and raises a host of questions: How will it change environmental conditions for marine microbes, favoring some that compete with others? How will it change the overall ocean ecosystem and affect larger organisms? How will it change where microbes, including pathogens, will be transported in the ocean? (more…)
VANCOUVER, Wash. – Scientists and technicians who work at volcano observatories in nine countries are visiting Mount St. Helens and the U.S. Geological Survey Volcano Science Center’s Cascades Volcano Observatory this week to learn techniques for monitoring active volcanoes. Organized by the Center for the Study of Active Volcanoes at the University of Hawaiʻi, Hilo, with support from the VSC-managed joint USGS-USAID Volcano Disaster Assistance Program, the annual program has been training foreign scientists for 22 years. This year’s class includes volcano scientists from Ecuador, Colombia, Peru, Costa Rica, El Salvador, Canada, Indonesia, Italy, and Papua New Guinea.
The International Training Program in Volcano Hazards Monitoring is designed to assist other nations in attaining self-sufficiency in monitoring volcanoes and reducing the risks from eruptions. Through in-class instruction at two USGS volcano observatories, and field exercises in Hawaiʻi and at Mount St. Helens, U.S. scientists are providing training on monitoring methods, data analysis and interpretation, and volcanic hazard assessment, and participants are taught about the use and maintenance of volcano monitoring instruments. Additionally, participants learn about focusing on forecasting and rapid response during volcanic crises, and how to work with governing officials and the news media to save lives and property. (more…)
