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Categories: Archaeology: General, Environmental: Ecosystems

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Environmental: Ecosystems
Published

Climate risks for Gulf of Mexico coral reefs spelled out in study      (via sciencedaily.com) 

Ocean temperatures in the Gulf of Mexico and the Caribbean Sea are on pace to surpass critical thresholds for coral health by mid-century, but rapid action to significantly reduce emissions could slow warming, giving corals and coral conservation programs as much as 20 more years to adapt, according to new research.

Archaeology: General
Published

Shrine discovered with rituals never seen to take place before in an Egyptian temple      (via sciencedaily.com)     Original source 

Researchers recently published new findings from the excavations of the Berenike site, a Greco-Roman seaport in the Egyptian Eastern desert. The study results describes the excavation of a religious complex from the Late Roman Period (between the fourth and sixth centuries) with unprecedented discoveries linked to the presence of the Blemmyes, a nomadic people. Fifteen falcons, many of them headless and buried around a pedestal, point to a ritual performed by the Blemmyes people to their falcon god. The shrine, located at the Hellenistic-Roman seaport of Berenike, contains a curious inscription prohibiting the boiling of animal heads inside the shrine.

Anthropology: Cultures Archaeology: General
Published

Geneticists discover new wild goat subspecies via ancient DNA      (via sciencedaily.com) 

Geneticists have discovered a previously unknown lineage of wild goats over ten millennia old. The new goat type, discovered from genetic screening of bone remains and referred to as 'the Taurasian tur', likely survived the Last Glacial Maximum (the ice age), which stranded their ancestors in the high peaks of the Taurus Mountains in Turkey where their remains were found.

Environmental: Ecosystems
Published

Glass microspheres won't save Arctic sea ice      (via sciencedaily.com) 

A proposal to cover Arctic sea ice with layers of tiny hollow glass spheres about the thickness of one human hair would actually accelerate sea-ice loss and warm the climate rather than creating thick ice and lowering the temperature as proponents claim. Sea ice, by reflecting the majority of the sun's energy back to space, helps regulate ocean and air temperatures and influences ocean circulation. Its area and thickness is of critical importance to Earth's climate.

Environmental: Ecosystems
Published

Coral select algae partnerships to ease environmental stress      (via sciencedaily.com) 

Corals live symbiotically with a variety of microscopic algae that provide most of the energy corals require, and some algae can make coral more resilient to heat stress. In assessing one of the main reef builders in Hawai'i, Montipora capitata or rice coral, researchers found that the symbiont community in those corals varied significantly in different parts of Kaneohe Bay.

Environmental: Ecosystems
Published

Biologists identify broad coral disease resistance traits      (via sciencedaily.com) 

A new study provides a novel framework for identifying broad coral disease resistance traits and examines the fundamental processes behind species survival.

Environmental: Ecosystems
Published

Not enough: Protecting algae-eating fish insufficient to save imperiled coral reefs      (via sciencedaily.com) 

How can we boost the resilience of the world's coral reefs, which are imperiled by multiple stresses including mass bleaching events linked to climate warming?

Archaeology: General
Published

Upcycling in the past: Viking beadmakers' secrets revealed      (via sciencedaily.com)     Original source 

The Viking Age bead makers were more advanced than previously believed. A new interdisciplinary study shows that around year 700 AD, craftsmen in Ribe, Denmark, used surprisingly sophisticated and sustainable methods when giving old Roman glass mosaics new life as glass beads.

Environmental: Ecosystems
Published

Rainy days on track to double in the Arctic by 2100      (via sciencedaily.com) 

Today, more snow than rain falls in the Arctic, but this is expected to reverse by the end of the century. A new study shows the frequency of rainy days in the Arctic could roughly double by 2100.

Archaeology: General
Published

New data reveals severe impact of European contact with Pacific islands      (via sciencedaily.com) 

Pacific island nations suffered severe depopulation from introduced diseases as a consequence of contact with European vessels, a new study shows. The research indicates population declines were a lot larger than previously thought and shows a big reassessment of the impact of globalization in the 19th century.

Environmental: Ecosystems
Published

Don't crack: Deteriorating safety on frozen lakes in a warming world      (via sciencedaily.com) 

An international team of climate and lake scientists has demonstrated that crossing frozen lakes with heavy trucks may soon be a thing of the past.

Environmental: Ecosystems
Published

Changes in marine ecosystems going undetected      (via sciencedaily.com) 

Existing ways of calculating biodiversity dynamics are not very effective in detecting wholesale species community change due to the effects of ocean acidification.

Environmental: Ecosystems
Published

Scientists find link between fast-melting Arctic ice and ocean acidification      (via sciencedaily.com) 

An international team of researchers has found acidity levels increasing three to four times faster than ocean waters elsewhere and a strong correlation between the accelerated rate of melting ice in the region and the rate of ocean acidification. This threatens the Earth's climate and the survival of plants, shellfish, coral reefs and other marine life.

Environmental: Ecosystems
Published

Study links cold water shock to catastrophic coral collapse in the Eastern Pacific      (via sciencedaily.com) 

Scientists have discovered that an extreme weather event that resulted in rapid sea temperature drops of up to 10 degrees was the primary cause of a catastrophic coral die-off event off the coast of Costa Rica.

Environmental: Ecosystems
Published

Population boom near globe's vulnerable coral reefs      (via sciencedaily.com) 

Millions more people across the globe are relying on our endangered coral reefs than 20 years ago, according to new figures into population growth in coastal areas.

Archaeology: General Geoscience: Volcanoes
Published

Detailing a disastrous autumn day in ancient Italy      (via sciencedaily.com) 

The Plinian eruption of Mount Vesuvius around 4,000 years ago -- 2,000 years before the one that buried the Roman city of Pompeii -- left a remarkably intact glimpse into Early Bronze Age village life in the Campania region of Southern Italy. The village offers a rare glimpse into the lives of the people who lived there, and the degree of preservation led the researchers to pinpoint the timing of the eruption, based on archaeobotanical record.

Anthropology: Cultures Archaeology: General
Published

The neighbors of the caliph: Archaeologists uncover ancient mosaics on the shore of the Sea of Galilee      (via sciencedaily.com) 

With the help of geomagnetic surface surveys and subsequent hands-on digging, an excavation team has revealed new insights into the area in which the caliph's palace of Khirbat al-Minya was built on the shores of the Sea of Galilee. According to these findings, there had already been a settlement occupied by Christian or Jewish inhabitants in the immediate vicinity long before the palace was built.

Environmental: Ecosystems Environmental: Wildfires
Published

Cattle grazing with virtual fencing shows potential to create wildfire fuel breaks, study finds      (via sciencedaily.com) 

The use of virtual fencing to manage cattle grazing on sagebrush rangelands has the potential to create fuel breaks needed to help fight wildfires, a recent study found.

Anthropology: Cultures Archaeology: General
Published

Among ancient Mayas, cacao was not a food exclusive to the elite      (via sciencedaily.com) 

It was the money that grew on trees. Said to be a gift from the gods, cacao for the ancient Maya was considered sacred, used not only as currency, but in special ceremonies and religious rituals. It's the progenitor plant of chocolate, and notions of luxury are embedded in its lore.

Environmental: Ecosystems
Published

Warming oceans are changing Australian reef fish populations      (via sciencedaily.com) 

Shallow reefs and the creatures that inhabit them are changing due to rising ocean temperatures, but these impacts have been obscured by a lack of comprehensive local data. A team of researchers has been tracking changes in the country's reefs for over a decade, and they now describe how they used fine-scale data to illustrate how warming waters impact tropical and temperate reef fish communities differently.