Frontiers | Science News

Science News post list

FS

Frontiers Science Communications

1,071 news posts

Environment

08 Apr 2019

Floodplain forests under threat

A floodplain forest dominated by oaks. Credit: Albert Reif. — by University of Freiberg, Germany A team from the Institute of Forest Sciences at the University of Freiburg shows that the extraction of groundwater for industry and households is increasingly damaging floodplain forests in Europe given the increasing intensity and length of drought periods in the summer. The scientists have published their results in the journal Frontiers in Forests and Global Change. Floodplain forests dominated by oaks are among the most at risk in Europe. Through conversion to arable land and pastures, as well as settlements, they have lost most of their original distribution. River regulation and drainage have also changed the natural hydrologic balance. The introduction of pests and diseases decimates native tree species such as elm and ash. At the same time, these forests play an important part in the control of flooding and protection of biodiversity. Groundwater Extraction in Floodplain Forests Reduces Radial Growth and Increases Summer Drought Sensitivity of Pedunculate Oak Trees (Quercus robur L.)► Read original article► Download original article (pdf) The root of the study by the Freiburg team was the observation that the vitality of old trees in the oak forests of the Rhine valley had […]

Featured news

01 Apr 2019

More scrutiny needed for less-deadly foodborne bacteria

Foodborne pathogens in the Bacillus cereus group cause diarrhea and vomiting. Credit: Penn State. — by Penn State University, USA Employing advanced genetic-tracing techniques and sharing the data produced in real time could limit the spread of bacteria — Bacillus cereus — which cause foodborne illness, according to researchers who implemented whole-genome sequencing of a pathogen-outbreak investigation. “Here, in our study, we use this approach for the first time on Bacillus cereus,” said Jasna Kovac, assistant professor of food science, Penn State. “It is our hope that whole-genome sequencing of Bacillus will be done more often as a result of our research, as it allows us to differentiate between the various species of Bacillus cereus group and project the food-safety risk associated with them.” Characterization of Emetic and Diarrheal Bacillus cereusStrains From a 2016 Foodborne Outbreak Using Whole-Genome Sequencing: Addressing the Microbiological, Epidemiological, and Bioinformatic Challenges► Read original article► Download original article (pdf) Done in response to an outbreak of foodborne illness in upstate New York in 2016, the project marked the first time researchers conducted whole-genome sequencing to investigate a Bacillus cereus outbreak to link isolates from human clinical cases to food. The outbreak, which lasted less than a month, stemmed from contaminated refried beans served by a small Mexican […]