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Categories: Environmental: Ecosystems, Environmental: Water

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Environmental: Water Geoscience: Environmental Issues
Published

2020 US rule dramatically deregulated wetlands, streams and drinking water      (via sciencedaily.com)     Original source 

New research used machine learning to more accurately predict which waterways are protected by the Clean Water Act. The analysis found that a 2020 Trump administration rule removed Clean Water Act protection for one-fourth of US wetlands and one-fifth of US streams, and also deregulated 30% of watersheds that supply drinking water to household taps.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Zoology Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Environmental: Water
Published

Sparrows uniquely adapted to Bay Area marshes are losing their uniqueness      (via sciencedaily.com)     Original source 

How does loss of habitat affect the animals still living there? A genetic study of saltwater-adapted Savannah sparrows around the San Francisco Bay Area shows that the 90% loss of tidal marsh habitat has led to more interbreeding with freshwater-adapted Savannah sparrows, diminishing their genetic adaptation to saltwater, such as enlarged kidneys and larger beak. This could lessen their ability to live in a saltwater habitat.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Oceanography
Published

Microplastics may be accumulating rapidly in endangered Galápagos penguins' food web      (via sciencedaily.com)     Original source 

Model predictions showed a rapid increase in microplastic accumulation and contamination across the penguins' prey organisms resulting in Galapagos penguin showing the highest level of microplastics per biomass, followed by barracuda, anchovy, sardine, herring, and predatory zooplankton.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

Researchers advocate for sustainable logging to safeguard against global flood risks      (via sciencedaily.com)     Original source 

It's time to recognize the power of healthy forests in managing global growing flood risk, and to shift towards more sustainable forestry practices and policy.

Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

War in Ukraine severely limits ability to track Arctic climate change      (via sciencedaily.com)     Original source 

Scientists no longer have direct access to data from Russian Arctic research stations. Without this data, our view of climate changes in the region is increasingly biased, new research shows.

Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

Paper provides a clearer picture of severe hydro hazards      (via sciencedaily.com)     Original source 

A new study now provides a global examination of drought-pluvial volatility -- or the tendency to shift from one weather extreme to another.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues
Published

Global groundwater depletion is accelerating, but is not inevitable      (via sciencedaily.com)     Original source 

Groundwater is rapidly declining across the globe, often at accelerating rates. Researchers now present the largest assessment of groundwater levels around the world, spanning nearly 1,700 aquifers. In addition to raising the alarm over declining water resources, the work offers instructive examples of where things are going well, and how groundwater depletion can be solved. The study is a boon for scientists, policy makers and resource managers working to understand global groundwater dynamics.

Environmental: Water Geoscience: Environmental Issues
Published

Injectable water filtration system could improve access to clean drinking water around the world      (via sciencedaily.com)     Original source 

A new portable filtration system collects dirty water with a syringe and injects it into a hydrogel filter that weeds out nearly all tiny particles.

Biology: Botany Biology: Microbiology Ecology: Extinction Ecology: Invasive Species Ecology: Nature Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General
Published

Study offers rare long-term analysis of techniques for creating standing dead trees for wildlife habitat      (via sciencedaily.com)     Original source 

Ecologists have long known that standing dead trees, commonly referred to as snags, are an important habitat element for forest dwellers and act as a driver of biodiversity. They're so important that in some managed forests, snag creation is part of the conservation tool kit -- i.e., crews sometimes convert a percentage of live trees into dead ones through techniques ranging from sawing off their tops to wounding their trunks to injecting them with disease-causing fungi.

Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Ecosystems Geoscience: Geography Geoscience: Oceanography
Published

Marine heat waves trigger shift in hatch dates and early growth of Pacific cod      (via sciencedaily.com)     Original source 

Marine heat waves appear to trigger earlier reproduction, high mortality in early life stages and fewer surviving juvenile Pacific cod in the Gulf of Alaska, a new study shows. These changes in the hatch cycle and early growth patterns persisted in years following the marine heat waves, which could have implications for the future of Gulf of Alaska Pacific cod, an economically and culturally significant species.

Chemistry: Biochemistry Chemistry: General Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Water, water everywhere and now we may have drops to drink      (via sciencedaily.com)     Original source 

Researchers have achieved a major breakthrough in Redox Flow Desalination (RFD), an emerging electrochemical technique that can turn seawater into potable drinking water and also store affordable renewable energy.

Chemistry: Biochemistry Environmental: General Environmental: Water Environmental: Wildfires Geoscience: Environmental Issues Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology
Published

Discovering the physics behind 300-year-old firefighting methods      (via sciencedaily.com)     Original source 

Inspired by a 1725 fire engine that pumped water at larger distances and higher speeds than previously possible, authors analyzed the pressure chamber's Windkessel effect to capture the physics behind this widely used, enduring technology. They compared the initial state of the chamber, the rate at which bucket brigades could pour water in (volumetric inflow), the length of time pressure builds, and the effects on output flow rate. Next, the authors plan to examine the physiological Windkessel involved in the heart-aorta system.

Biology: General Biology: Zoology Ecology: Animals Ecology: Nature Environmental: Ecosystems
Published

Blue tit population booms with moths on the menu      (via sciencedaily.com)     Original source 

Researchers found that years when moth numbers were up resulted in increased population growth for the blue tit.

Biology: Biochemistry Biology: Zoology Ecology: Animals Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Gulls swap natural for urban habitats, machine-learning study finds      (via sciencedaily.com)     Original source 

The study is the first of its kind to compile a three-year dataset using a citizen science-based, opportunistic research method to include a large sample of gulls and other sub-Arctic birds in urban Alaska. The study provides a current snapshot of the habitat shift to an urban landscape.

Biology: General Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

A new perspective on the temperature inside tropical forests      (via sciencedaily.com)     Original source 

New worldwide maps of temperatures inside tropical forests show that global warming affect different way in different parts of the forests. Undergrowth level temperature of the tropical forests can be even 4 degrees less than average temperature of the area.

Biology: Biochemistry Biology: Cell Biology Chemistry: Biochemistry Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Physics: Acoustics and Ultrasound
Published

Uncovering the secrets behind the silent flight of owls      (via sciencedaily.com)     Original source 

Owls produce negligible noise while flying. While many studies have linked the micro-fringes in owl wings to their silent flight, the exact mechanisms have been unclear. Now, a team of researchers has uncovered the effects of these micro-fringes on the sound and aerodynamic performance of owl wings through computational fluid dynamic simulations. Their findings can inspire biomimetic designs for the development of low-noise fluid machinery.

Biology: Biochemistry Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geography
Published

Wolves and elk are (mostly) welcome back in Poland and Germany's Oder Delta region, survey shows      (via sciencedaily.com)     Original source 

An online survey conducted in Germany and Poland shows that large parts of the participants support the return of large carnivores and herbivores, such as wolves and elk, to the Oder Delta region. Presented with different rewilding scenarios, the majority of survey participants showed a preference for land management that leads to the comeback of nature to the most natural state possible. Locals, on the other hand, showed some reservations.

Chemistry: Biochemistry Chemistry: General Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Deepwater Horizon oil spill study could lead to overhaul of cleanup processes worldwide      (via sciencedaily.com)     Original source 

New research could lead to major improvements in marine oil spill cleanup processes. The innovative study assessed the impact of the Deepwater Horizon oil spill on microscopic seawater bacteria that perform a significant role in ecosystem functioning.