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Categories: Archaeology: General, Environmental: Ecosystems

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Archaeology: General
Published

Medieval mass burial shows centuries-earlier origin of Ashkenazi genetic bottleneck      (via sciencedaily.com) 

In 2004, construction workers in Norwich, UK, unearthed human skeletal remains that led to a historical mystery -- at least 17 bodies at the bottom of a medieval well. Using archeological records, historical documents, and ancient DNA, British researchers have now identified the individuals to be a group of Ashkenazi Jews who may have fallen victim to antisemitic violence during the 12th century. Their findings shed new light on Jewish medical history in Europe.

Environmental: Ecosystems
Published

Getting to the bottom of the Arctic sea ice decline      (via sciencedaily.com) 

Sea ice levels in the Arctic Ocean are rapidly declining, due to global warming. Now, to understand and forecast the growth and decay of the ice, researchers have conducted a survey in the Arctic Ocean to investigate the influence of ocean heat on sea ice in the ice-ocean boundary layer. Their findings provide insights into the mechanisms of Arctic sea ice decline for making accurate predictions in the future regarding the global climate.

Anthropology: Cultures Archaeology: General
Published

The Southern Arc and its lively genetic history      (via sciencedaily.com) 

A vast paleogenetic study reveals insights on migration patterns, the expansion of farming and language development from the Caucasus over western Asia and Southern Europe from the early Copper Age until the late middle ages.

Archaeology: General
Published

DNA analysis shows Griffin Warrior ruled his Greek homeland      (via sciencedaily.com) 

Using new scientific tools, archaeologists discovered that an ancient Greek leader known today as the Griffin Warrior likely grew up around the seaside city he would one day rule. The findings are part of three new studies that examined the ancient DNA of the Griffin Warrior and 726 other people who lived before and during the Bronze Age to learn more about their origins and movements across three continents surrounding the Mediterranean Sea.

Archaeology: General
Published

Scientists say a shipwreck off Patagonia is a long-lost 1850s Rhode Island whaler      (via sciencedaily.com) 

Scientists investigating the remains of an old wooden ship off the cold, windy coast of far southern Argentina say it almost certainly is the Dolphin, a globe-trotting whaling ship from Warren, R.I., lost in 1859. Archaeologists have spent years researching the ship's origin without making a definitive identification, but a new analysis of tree rings in its timbers has provided perhaps the most compelling evidence yet.

Archaeology: General
Published

AI-based method for dating archeological remains      (via sciencedaily.com) 

By analyzing DNA with the help of artificial intelligence (AI), an international research team has developed a method that can accurately date up to ten-thousand year-old human remains.

Anthropology: Cultures Archaeology: General
Published

Analysis of everyday tools challenges long-held ideas about what drove major changes in ancient Greek society      (via sciencedaily.com) 

A modern scientific analysis of ancient stone tools is challenging long-held beliefs about what caused radical change on the island of Crete, where the first European state flourished during the Bronze Age: the 'Minoan civilization.'

Environmental: Ecosystems Geoscience: Environmental Issues
Published

Which animals can best withstand climate change?      (via sciencedaily.com) 

A new study investigates how different mammals react to climate change. Animals that live for a long time and/or produce less offspring -- like bears and bison -- are more resilient than small animals with a short life -- like mice and lemmings.

Archaeology: General
Published

Medieval monks were 'riddled with parasites'      (via sciencedaily.com) 

Research examining traces of parasites in medieval Cambridge residents suggests that monks were almost twice as likely as ordinary townspeople to have intestinal worms -- despite monasteries of the period typically having far more sanitary facilities.

Environmental: Ecosystems
Published

As oceans warm, snapping shrimp sound a warning      (via sciencedaily.com) 

Scientists have confirmed their previous observations that rising temperatures increase the sound of snapping shrimp, a tiny crustacean found in temperate and tropical coastal marine environments around the world.

Environmental: Ecosystems
Published

Snow research fills gap in understanding Arctic climate      (via sciencedaily.com) 

Comprehensive data from several seasons of field research in the Alaskan Arctic will address uncertainties in Earth-system and climate-change models about snow cover across the region and its impacts on water and the environment.

Environmental: Ecosystems
Published

Fish 'chock-full' of antifreeze protein found in iceberg habitats off Greenland      (via sciencedaily.com) 

New research based on an expedition to the icy waters off Greenland reveals soaring levels of antifreeze proteins in a species of tiny snailfish, underlying the importance of this unique adaptation to life in sub-zero temperatures. The study also warns that warming oceanic temperatures in the Arctic could pose a threat to these highly specialized fishes.

Environmental: Ecosystems
Published

Thawing Arctic hillsides are major climate change contributors      (via sciencedaily.com) 

Thawing Arctic hillsides release a significant amount of organic carbon that has been locked in frozen ground for thousands of years but which now can contribute to an already warming climate, according to new research. The finding comes from the study of hillsides in a far north region of Russia, where the researchers also found a significant and rapid increase of collapsed hillsides. The collapses feature landslides that gradually expose more of the permafrost for thawing -- and more carbon for release.

Archaeology: General
Published

Evidence that giant meteorite impacts created the continents      (via sciencedaily.com)     Original source 

New research has provided the strongest evidence yet that Earth's continents were formed by giant meteorite impacts that were particularly prevalent during the first billion years or so of our planet's four-and-a-half-billion year history.

Environmental: Ecosystems
Published

Oft-overlooked grasslands build biodiversity, resilience over centuries      (via sciencedaily.com) 

The restoration of grassland ecosystems may need more of a guided, hands-on approach over time, according to a new review of global conservation efforts.

Environmental: Ecosystems
Published

Tracking nitrogen pollution      (via sciencedaily.com) 

Tropical coastal ecosystems are among the most biodiverse areas on Earth. And they're also on the front lines of effects caused by human activity. That's why it's becoming increasingly important, especially as human populations increase, to manage the impacts of runoff and wastewater that flow into the sea.

Environmental: Ecosystems
Published

Highest coral cover in central, northern Reef in 36 years      (via sciencedaily.com) 

The northern and central Great Barrier Reef have recorded their highest amount of coral cover since the Australian Institute of Marine Science (AIMS) began monitoring 36 years ago. However, average coral cover in the southern region decreased due to ongoing crown-of-thorns starfish outbreaks. While the Reef experienced its fourth major bleaching event in the past seven years this year, it didn't reach the intensity of earlier events and was not expected to lead to mass coral mortality.

Environmental: Ecosystems
Published

Where coral reefs may be buffered against warming oceans      (via sciencedaily.com) 

As warming ocean temperatures threaten the existence of coral reefs, scientists have successfully used an extremely high-resolution computer simulation of ocean circulation to identify possible 'thermal refugia' where these biodiverse ecosystems are more likely to survive.

Environmental: Ecosystems
Published

Computer modelling aims to inform restoration, conservation of coral reefs      (via sciencedaily.com) 

A research team has created a computer modelling program to help scientists predict the effect of climate damage and eventual restoration plans on coral reefs around the globe. This is a critical objective because climate change is killing many coral species and can lead to the collapse of entire coral reef ecosystems, according to researchers.

Archaeology: General
Published

Octopus lures from the Mariana Islands found to be oldest in the world      (via sciencedaily.com) 

An archaeological study has determined that cowrie-shell artifacts found throughout the Mariana Islands were lures used for hunting octopuses and that the devices, similar versions of which have been found on islands across the Pacific, are the oldest known artifacts of their kind in the world.