Environmental: Ecosystems
Published

Climate change is making Indian monsoon seasons more chaotic      (via sciencedaily.com) 

If global warming continues unchecked, summer monsoon rainfall in India will become stronger and more erratic. This is the central finding of an analysis by a team of researchers that compared more than 30 state-of-the-art climate models from all around the world. The study predicts more extremely wet years in the future - with potentially grave consequences for more than one billion people's well-being, economy, food systems and agriculture.

Environmental: Ecosystems Geoscience: Environmental Issues
Published

Ozone pollution harms maize crops, study finds      (via sciencedaily.com) 

A new study has shown that ozone in the lower layers of the atmosphere decreases crop yields in maize and changes the types of chemicals that are found inside the leaves.

Environmental: Ecosystems
Published

Low risk of researchers passing coronavirus to North American bats      (via sciencedaily.com) 

A new study finds that the risk is low that scientists could pass coronavirus to North American bats during winter research.

Environmental: Ecosystems
Published

Study finds microbial-plant interactions affect the microbial response to climate change      (via sciencedaily.com) 

Biologists have discovered that plants influence how their bacterial and fungal neighbors react to climate change. This finding contributes crucial new information to a hot topic in environmental science: in what manner will climate change alter the diversity of both plants and microbiomes on the landscape?

Paleontology: Early Mammals and Birds
Published

Endangered songbird challenging assumptions about evolution      (via sciencedaily.com) 

New research looked at a newly discovered, endangered songbird located only in South America -- the Iberá Seedeater -- and found that this bird followed a very rare evolutionary path to come into existence at a much faster pace than the grand majority of species.

Paleontology: Early Mammals and Birds
Published

Mummified parrots point to trade in the ancient Atacama desert      (via sciencedaily.com) 

Ancient Egyptians mummified cats, dogs, ibises and other animals, but closer to home in the South American Atacama desert, parrot mummies reveal that between 1100 and 1450 CE, trade from other areas brought parrots and macaws to oasis communities, according to an international and interdisciplinary team.

Environmental: Ecosystems
Published

The persistent danger after landscape fires      (via sciencedaily.com) 

Every year, an estimated four percent of the world's vegetated land surface burns, leaving more than 250 megatons of carbonized plants behind. A study has now recorded elevated concentrations of environmentally persistent free radicals (EPFR) in these charcoals - in some cases even up to five years after the fire. These EPFR may generate reactive substances, which in turn harm plants and living organisms.

Environmental: Ecosystems
Published

Ancient megafaunal mutualisms and extinctions as factors in plant domestication      (via sciencedaily.com) 

The development of agriculture is often thought of as a human innovation in response to climate change or population pressure. A new manuscript challenges that concept, suggesting that plants that had already evolved adaptive traits for life among large-bodied grazing and browsing animals were more likely to prosper on a highly disturbed anthropogenic landscape.

Paleontology: Early Mammals and Birds
Published

Warriors' down bedding could ease journey to realm of the dead      (via sciencedaily.com) 

Feathers, an owl head and oars suggest the people in this Iron Age grave were prepared for a long journey.

Environmental: Ecosystems
Published

Greenland caves: Time travel to a warm Arctic      (via sciencedaily.com) 

An international team of scientists presents an analysis of sediments from a cave in northeast Greenland, that cover a time period between about 588,000 to 549,000 years ago. This interval was warmer and wetter than today, the cave deposits provide an outlook in a possible future warmer world due to climate change.

Environmental: Ecosystems
Published

How grasslands respond to climate change      (via sciencedaily.com) 

The rise in atmospheric carbon dioxide concentration and concurrent climate change has led to yield reductions of grass-rich grassland vegetation in the past century.

Paleontology: Early Mammals and Birds
Published

Giant fossil's 'bird-brain'      (via sciencedaily.com) 

The largest flightless bird ever to live weighed in up to 600kg and had a whopping head about half a meter long - but its brain was squeezed for space. Dromornis stirtoni, the largest of the 'mihirungs' (an Aboriginal word for 'giant bird'), stood up to 3m and had a cranium wider and higher than it was long due to a powerful big beak, leading Australian palaeontologists to look inside its brain space to see how it worked.

Environmental: Ecosystems
Published

Last Ice Age: Precipitation caused maximum advance of Alpine Glaciers      (via sciencedaily.com) 

Geologists unexpectedly found mineral deposits in former ice caves in the Austrian Alps dating back to the peak of the last ice age. These special calcite crystals demonstrate that intensive snowfall during the second half of the year triggered a massive glacier advance leading to the climax of the last ice age.

Paleontology: Early Mammals and Birds
Published

Extinct Caribbean bird's closest relatives hail from Africa, South Pacific      (via sciencedaily.com) 

In a genetic surprise, ancient DNA shows the closest family members of an extinct bird known as the Haitian cave-rail are not in the Americas, but Africa and the South Pacific, uncovering an unexpected link between Caribbean bird life and the Old World.

Environmental: Ecosystems
Published

Whooping cranes steer clear of wind turbines when selecting stopover sites      (via sciencedaily.com) 

An article reports that whooping cranes migrating through the U.S. Great Plains avoid 'rest stop' sites that are within 5 km of wind-energy infrastructure.

Environmental: Ecosystems
Published

Rarest seal breeding site discovered      (via sciencedaily.com) 

Scientists have discovered a previously unknown breeding site used by the world's rarest seal species.

Environmental: Ecosystems
Published

Metal whispering: Finding a better way to recover precious metals from electronic waste      (via sciencedaily.com) 

With a bit of 'metal whispering,' engineers have developed technology capable of recovering pure and precious metals from the alloys in our old phones and other electrical waste. All it takes is the controlled application of oxygen and relatively low levels of heat.

Environmental: Ecosystems
Published

Dingo effects on ecosystem visible from space      (via sciencedaily.com) 

Satellite images taken over three decades show that keeping dingoes out comes at a price.

Environmental: Ecosystems
Published

Impacts of climate warming on microbial network interactions      (via sciencedaily.com) 

A new study explores the impacts of climate warming on microbial network complexity and stability, providing critical insights to ecosystem management and for projecting ecological consequences of future climate warming.

Paleontology: Early Mammals and Birds
Published

Quartz crystals in the stomach of fossil bird complicates the mystery of its diet      (via sciencedaily.com) 

The fossil of a bird that lived alongside the dinosaurs was found with some sort of rocks in its stomach. Previously, researchers thought that these rocks were swallowed on purpose to help clean its stomach, like modern birds of prey do, giving a hint at its diet. But in a new study, scientists discovered that these rocks are quartz crystals that likely formed after the bird died -- its diet is still a mystery.