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ScienceDaily: Top Environment News |
| Pandemic paleo: A wayward skull, at-home fossil analyses, a first for Antarctic amphibians Posted: 21 May 2021 08:53 AM PDT Researchers have discovered the first fossil evidence of an ancient amphibian, Micropholis stowi, from Antarctica. Micropholis lived in the Early Triassic, shortly after Earth's largest mass extinction. It was previously known only from fossils in South Africa, and its presence in Antarctica has implications for how amphibians adapted to high-latitude regions in this dynamic period of Earth's history. |
| Water treatment: Removing hormones with sunlight Posted: 21 May 2021 08:53 AM PDT Micropollutants such as steroid hormones contaminate drinking water worldwide. Until now, easily scalable water treatment technologies that remove them efficiently and sustainably have been lacking. Scientists have developed a new chemical process for removing hormones. It takes advantage of the mechanisms of photocatalysis and transforms the pollutants into potentially safe oxidation products. |
| Entire genome from Pestera Muierii 1 sequenced Posted: 20 May 2021 10:37 AM PDT Researchers have successfully sequenced the entire genome from the skull of Pestera Muierii 1, a woman who lived in today's Romania 35,000 years ago. Her high genetic diversity shows that the out of Africa migration was not the great bottleneck in human development but rather this occurred during and after the most recent Ice Age. |
| Survival of migrating juvenile salmon depends on stream flow thresholds Posted: 20 May 2021 10:37 AM PDT Juvenile salmon migrating to the sea in the Sacramento River face a gauntlet of hazards in an environment drastically modified by humans, especially with respect to historical patterns of stream flow. Now fisheries scientists have identified key thresholds in the relationship between stream flow and salmon survival that can serve as actionable targets for managing water resources in the Sacramento River. |
| How plants leave behind their parents' genomic baggage Posted: 20 May 2021 10:37 AM PDT Small chemical 'epigenetic' modifications help plants control their genes. Baby plants erase these modifications to start with a fresh genome every generation. Scientists discovered a gene responsible for reinstalling the beneficial modifications important for survival. Reinstalling these modifications on mobile genetic elements called transposons may explain the diversity of flowering plants. |
| The viruses in our genes: When activated, they damage brain development Posted: 20 May 2021 10:37 AM PDT New research shows that activation of distinct human endogenous retroviruses, which are part of our genome, impair brain development dramatically. The finding could help to advance research into therapies for neurodegenerative diseases. |
| New tool factors effects of fossil-fuel emissions on ocean research Posted: 20 May 2021 06:51 AM PDT A newly developed tool will allow scientists to better gauge how centuries of fossil fuel emissions could be skewing the data they collect from marine environments. Researchers at the University of Alaska Fairbanks led the effort, which created a way for marine scientists to factor into their results the vast amounts of anthropogenic carbon dioxide that are being absorbed by oceans. |
| Earthquake creates ecological opportunity Posted: 20 May 2021 06:50 AM PDT A new study has revealed how earthquake upheaval has affected New Zealand's coastal species. |
| Declining biodiversity in Tibet's mountainous regions in response to climate change Posted: 20 May 2021 06:50 AM PDT Normally, mountain forests are among the most diverse habitats in alpine regions. Yet, as a team discovered in the Tibetan Plateau, the higher, treeless areas are home to far more species. |
| Tree species diversity is no protection against bark beetle infestation Posted: 19 May 2021 01:36 PM PDT An ecologist investigates pest infestation in forests with mixed and monoculture tree stands. |
| Long search finds grain of hope in the glume Posted: 19 May 2021 09:09 AM PDT Researchers have found the elusive genetic element controlling the elongated grains and glumes of a wheat variety identified by the renowned botanist Carl Linnaeus more than 250 years ago. |
| Birds dealing with change -- Mapping migration routes can lead to conservation areas Posted: 19 May 2021 09:08 AM PDT Tracking migratory birds that carry tiny satellite transmitters in featherlight 'backpacks', can teach us a lot about change in the environment. It may also point at possibilities to avoid loss of biodiversity. |
| Michigan is home to 465 bee species and each one plays a role in the states' ecosystems Posted: 19 May 2021 09:08 AM PDT During a 15-year study of wild bees visiting blueberry fields during their blooming season, researchers caught an unexpected glimpse of how extreme weather events can impact bee populations highlighting the need for more long-term studies, says a Michigan State University researcher. |
| Microbes known as protists are understudied, but their impact on ecosystems could be huge Posted: 19 May 2021 09:08 AM PDT Among the large cast of microbiome players, bacteria have been hogging the spotlight. But the single-celled organisms known as protists are finally getting the starring role they deserve. |
| Scientists take a bite out of solar efficiency challenge with sandwich model Posted: 19 May 2021 09:07 AM PDT Research has revealed the structure of 2D perovskite thin films resembles a sandwich containing layers beneficial for generating electricity more efficiently in photovoltaics. |
| Groundwater monitoring with seismic instruments Posted: 19 May 2021 09:07 AM PDT How can we determine how empty or full the soil reservoir is in areas that are difficult to access? Researchers have now demonstrated an elegant method to track groundwater dynamics in high mountains: They use seismic waves. |
| Study raises new alarm over long-term exposure to second-hand smoke Posted: 19 May 2021 05:04 AM PDT Chronic exposure to second-hand smoke results in lower body weight and cognitive impairments that more profoundly affects males, according to new research in mice. The research examined daily exposure of 62 mice over a period of 10 months. Researchers used a specially designed 'smoking robot' that went through a pack of cigarettes a day in ventilated laboratory space. The longest previous study of this kind lasted three months. |
| COVID-19 testing method gives results within one second, researchers report Posted: 18 May 2021 10:08 AM PDT Researchers report a rapid and sensitive testing method for COVID-19 biomarkers that amplifies the binding signal for a target biomarker and provides detection within one second. |
| New model for infectious disease could better predict future pandemics Posted: 18 May 2021 10:07 AM PDT Scientists provide a framework for a new approach to modeling infectious diseases. It adapts established methods developed to study the planet’s natural systems, including climate change, ocean circulation and forest growth, and applies them to parasites and pathogens that cause disease. |
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