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Categories: Biology: Marine, Environmental: Water

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

Biology: Biochemistry Biology: Marine Ecology: Sea Life Environmental: General Geoscience: Environmental Issues
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Humpback whales move daytime singing offshore      (via sciencedaily.com)     Original source 

New research revealed a daily pattern wherein humpback whales move their singing away from shore throughout the day and return to the nearshore in the evening.

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

Don't blame the sharks: Why more hooked tarpon are being eaten      (via sciencedaily.com)     Original source 

In wave-making research, a team of biologists has quantified the rate at which great hammerhead sharks are eating Atlantic tarpon hooked by anglers at Bahia Honda, Florida -- one of the prime tarpon fishing spots in the Florida Keys.

Biology: Marine Ecology: Extinction Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
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The megalodon was less mega than previously believed      (via sciencedaily.com)     Original source 

A new study shows the Megalodon, a gigantic shark that went extinct 3.6 million years ago, was more slender than earlier studies suggested. This finding changes scientists' understanding of Megalodon behavior, ancient ocean life, and why the sharks went extinct.

Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Geography Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
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Sea otters helped prevent widespread California kelp forest declines over the past century      (via sciencedaily.com)     Original source 

The study reveals dramatic regional kelp canopy changes along the California coast over a 100-year period. During this time there was a significant increase in kelp forest canopy along the central coast, the only region of California where southern sea otters survived after being hunted nearly to extinction for their fur in the 1800s. Contrastingly, kelp canopy decreased in northern and southern regions. At the century scale, the species' favorable impact on kelp forests along the central coast nearly compensated for the kelp losses along both northern and southern California resulting in only a slight overall decline statewide during this period.

Biology: Biochemistry Biology: General Biology: Microbiology Ecology: General Ecology: Research Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues
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Translating nuclear waste site data into microbial ecosystem insights      (via sciencedaily.com)     Original source 

A flagship seven-year study that explores how environmental stresses influence different ecological processes shaping the composition and structure of microbial communities in groundwater has now been published.

Chemistry: General Chemistry: Inorganic Chemistry Energy: Alternative Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Efficiently moving urea out of polluted water is coming to reality      (via sciencedaily.com)     Original source 

Researchers have developed a material to remove urea from water and potentially convert it into hydrogen gas. By building these materials of nickel and cobalt atoms with carefully tailored electronic structures, the group has unlocked the potential to enable these transition metal oxides and hydroxides to selectively oxidize urea in an electrochemical reaction. The team's findings could help use urea in waste streams to efficiently produce hydrogen fuel through the electrolysis process, and could be used to sequester urea from water, maintaining the long-term sustainability of ecological systems, and revolutionizing the water-energy nexus.

Ecology: Endangered Species Ecology: Nature Environmental: Biodiversity Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Paleontology: Climate
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The heat is on: Scientists discover southern Africa's temps will rise past the rhinos' tolerance      (via sciencedaily.com)     Original source 

Southern Africa contains the vast majority of the world's remaining populations of both black and white rhinoceroses (80% and 92%, respectively). The region's climate is changing rapidly as a result global warming. Traditional conservation efforts aimed at protecting rhinos have focused on poaching, but until now, there has been no analysis of the impact that climate change may have on the animals. A research team has recently reported that, though the area will be affected by both higher temperatures and changing precipitation, the rhinos are more sensitive to rising temperatures, which will quickly increase above the animals' acceptable maximum threshold.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Severe Weather
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Climate change isn't producing expected increase in atmospheric moisture over dry regions      (via sciencedaily.com)     Original source 

The warming climate has not lead to an expected increase in atmospheric moisture over arid and semi-arid regions of the world. The finding, which has surprised scientists, indicates that some regions may be even more vulnerable to future wildfires and extreme heat than projected.