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Categories: Ecology: Nature, Geoscience: Earth Science

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Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Endangered Species Ecology: Nature
Published

Genomes of 'star algae' shed light on origin of plants      (via sciencedaily.com)     Original source 

Land plants cover the surface of our planet and often tower over us. They form complex bodies with multiple organs that consist of a broad range of cell types. Developing this morphological complexity is underpinned by intricate networks of genes, whose coordinated action shapes plant bodies through various molecular mechanisms. All of these magnificent forms burst forth from a one-off evolutionary event: when plants conquered Earth's surface, known as plant terrestrialization.

Biology: Zoology Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: General
Published

Did a magnetic field collapse trigger the emergence of animals?      (via sciencedaily.com)     Original source 

Researchers uncovered compelling evidence that Earth's magnetic field was in a highly unusual state when the macroscopic animals of the Ediacaran Period -- 635 to 541 million years ago -- diversified and thrived. Their study raises the question of whether these fluctuations in Earth's ancient magnetic field led to shifts in oxygen levels that may have been crucial to the proliferation of life forms millions of years ago.

Chemistry: General Energy: Nuclear Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General
Published

New Nevada experiments will improve monitoring of nuclear explosions      (via sciencedaily.com)     Original source 

On an October morning in 2023, a chemical explosion detonated in a tunnel under the Nevada desert was the launch of the next set of experiments by the National Nuclear Security Administration, with the goal to improve detection of low-yield nuclear explosions around the world.

Biology: Botany Biology: Cell Biology Biology: General Biology: Marine Biology: Microbiology Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

For microscopic organisms, ocean currents act as 'expressway' to deeper depths      (via sciencedaily.com)     Original source 

Some of the ocean's tiniest organisms get swept into underwater currents that act as a conduit that shuttles them from the sunny surface to deeper, darker depths where they play a huge role in affecting the ocean's chemistry and ecosystem, according to new research.

Environmental: Biodiversity Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues
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Oil palm plantations are driving massive downstream impact to watershed      (via sciencedaily.com)     Original source 

The global demand for palm oil -- the most widely consumed vegetable oil on the planet, in everything from instant noodles to lipstick -- is driving worldwide tropical deforestation. While many studies have shown the loss of biodiversity when rainforests are converted to oil palm plantations, researchers have now shown the far-reaching and wide-ranging disturbances to the watersheds in which such plantations occur.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology Geoscience: Oceanography
Published

Human activity is causing toxic thallium to enter the Baltic sea, according to new study      (via sciencedaily.com)     Original source 

Human activities account for 20% to more than 60% of toxic thallium entering the Baltic Sea over the past eight decades, according to new research. Currently, the amount of thallium, which is considered the most toxic metal for mammals, remains low in Baltic seawater. Much of the thallium in the Baltic, which is the largest human-induced hypoxic area on Earth, has been accumulated in the sediment thanks to sulfide minerals.

Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Environmental: Ecosystems Environmental: General
Published

Artificial intelligence enhances monitoring of threatened marbled murrelet      (via sciencedaily.com)     Original source 

Artificial intelligence analysis of data gathered by acoustic recording devices is a promising new tool for monitoring the marbled murrelet and other secretive, hard-to-study species.

Anthropology: General Biology: Zoology Ecology: Extinction Ecology: Nature Paleontology: Early Mammals and Birds
Published

Feathers, cognition and global consumerism in colonial Amazonia      (via sciencedaily.com)     Original source 

Amazonia is the home of the largest variety of birds in the world. In such a unique environment, craft cultures have flourished by translating the beauty and creativity of environmental materials like feathers into stunning pieces of art. A new article examines artisanal featherwork within the context of early modern colonialism and globalization.

Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geography
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Do earthquake hazard maps predict higher shaking than actually occurred?      (via sciencedaily.com)     Original source 

A research team studied earthquake hazard maps from five countries and found that all the maps seemed to overpredict the historically observed earthquake shaking intensities. In analyzing the possible causes, the researchers discovered the issue was with the conversion equations used in comparing the maps predicting future quakes with actual shaking data, rather than systemic problems with the hazard modeling itself.

Computer Science: General Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Mathematics: General Mathematics: Modeling Paleontology: Climate
Published

New computer algorithm supercharges climate models and could lead to better predictions of future climate change      (via sciencedaily.com)     Original source 

A study describes a new computer algorithm which can be applied to Earth System Models to drastically reduce the time needed to prepare these in order to make accurate predictions of future climate change. During tests on models used in IPCC simulations, the algorithm was on average 10 times faster at spinning up the model than currently-used approaches, reducing the time taken to achieve equilibrium from many months to under a week.

Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
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Mystery behind huge opening in Antarctic sea ice solved      (via sciencedaily.com)     Original source 

Researchers have discovered the missing piece of the puzzle behind a rare opening in the sea ice around Antarctica, which was nearly twice the size of Wales and occurred during the winters of 2016 and 2017. A study reveals a key process that had eluded scientists as to how the opening, called a polynya, was able to form and persist for several weeks.

Geoscience: Earth Science Geoscience: Geography Geoscience: Geology Geoscience: Oceanography Paleontology: Fossils Paleontology: General
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Rock solid evidence: Angola geology reveals prehistoric split between South America and Africa      (via sciencedaily.com)     Original source 

A research team has found that ancient rocks and fossils from long-extinct marine reptiles in Angola clearly show a key part of Earth's past -- the splitting of South America and Africa and the subsequent formation of the South Atlantic Ocean.

Biology: General Biology: Zoology Chemistry: General Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature Geoscience: Geochemistry
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Missing link in species conservation: Pharmacists, chemists could turn tide on plant, animal extinction      (via sciencedaily.com)     Original source 

As the world faces the loss of a staggering number of species of animals and plants to endangerment and extinction, one scientist has an urgent message: Chemists and pharmacists should be key players in species conservation efforts.

Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Paleontology: Climate
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Climate change and mercury pollution stressed plants for millions of years      (via sciencedaily.com)     Original source 

The link between massive flood basalt volcanism and the end-Triassic (201 million years ago) mass-extinction is commonly accepted. However, exactly how volcanism led to the collapse of ecosystems and the extinction of entire families of organisms is difficult to establish. Extreme climate change from the release of carbon dioxide, degradation of the ozone layer due to the injection of damaging chemicals, and the emissions of toxic pollutants, are all seen as contributing factors. One toxic element stands out: mercury.

Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature
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Protecting endangered monkeys from poachers, habitat loss      (via sciencedaily.com)     Original source 

The 17 species of red colobus monkey living across Africa, including in the Tai Project field station region, have been singled out by scientists as a priority conservation target. Protection of these monkeys, they assert, can be expected to produce benefits throughout tropical African forests where hunting and climate change have led to dramatic wildlife and habitat loss.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Ecology: Nature Environmental: Biodiversity Environmental: General Geoscience: Environmental Issues Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Fading lights: Multiple threats to North America's firefly populations      (via sciencedaily.com)     Original source 

Scientists have applied a data-driven approach to understanding firefly population dynamics on a continental scale. Key findings from this new study indicate that fireflies, part of the beetle order, are sensitive to various environmental factors, from short-term weather conditions to longer climatic trends, including the number of growing-degree days related to temperature accumulations.

Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Geoscience: Environmental Issues
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Climate change could become the main driver of biodiversity decline by mid-century      (via sciencedaily.com)     Original source 

Global biodiversity has declined between 2% and 11% during the 20th century due to land-use change alone, according to a large multi-model study. Projections show climate change could become the main driver of biodiversity decline by the mid-21st century.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Microbiology Ecology: Nature
Published

These jacks-of-all-trades are masters, too: Yeast study helps answer age-old biology question      (via sciencedaily.com)     Original source 

The results suggest that internal -- not external -- factors are the primary drivers of variation in the types of carbon yeasts can eat, and the researchers found no evidence that metabolic versatility, or the ability to eat different foods, comes with any trade-offs. In other words, some yeasts are jacks-of-all-trades and masters of each.