John F. Hoffecker
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View article: Beringia and the peopling of the Western Hemisphere
Beringia and the peopling of the Western Hemisphere Open
Did Beringian environments represent an ecological barrier to humans until less than 15 000 years ago or was access to the Americas controlled by the spatial–temporal distribution of North American ice sheets? Beringian environments varied…
View article: Archaeological reconnaissance at Lake E5 in the Brooks Range, Alaska and implications for the early human biomarker record of Beringia
Archaeological reconnaissance at Lake E5 in the Brooks Range, Alaska and implications for the early human biomarker record of Beringia Open
Biomarker data from two lakes in arctic Alaska suggest the presence of humans as early as 34,000 calendar years ago. During July 2021 we conducted an archaeological reconnaissance of one of these lakes: Lake E5 in the Kuparuk River Valley …
View article: Beringia and the Settlement of the Western Hemisphere
Beringia and the Settlement of the Western Hemisphere Open
Previously, we addressed the problem of what variable(s) limited widespread human settlement of the Americas before ~15 ka. We concluded that while non-modern human taxa (e. g., Neanderthals) probably did not inhabit high-latitude environm…
View article: AQY volume 94 issue 374 Cover and Back matter
AQY volume 94 issue 374 Cover and Back matter Open
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View article: The chronology and function of a new circular mammoth-bone structure at Kostenki 11
The chronology and function of a new circular mammoth-bone structure at Kostenki 11 Open
View article: Climate, Technology, and Glaciers: The Settlement of the Western Hemisphere
Climate, Technology, and Glaciers: The Settlement of the Western Hemisphere Open
A major problem in human prehistory is the late settlement of the Americas, which were not occupied until after 15,000 years ago from Beringia. The most likely barriers to earlier settlement are: 1) high-latitude environments (characterize…
View article: Environmental selection during the last ice age on the mother-to-infant transmission of vitamin D and fatty acids through breast milk
Environmental selection during the last ice age on the mother-to-infant transmission of vitamin D and fatty acids through breast milk Open
Significance The frequency of the human-specific EDAR V370A isoform is highly elevated in North and East Asian populations. The gene is known to have several pleiotropic effects, among which are sweat gland density and ductal branching in …
View article: Archéologie du Cap Espenberg où la question du Birnirk et de l’origine du Thulé dans le nord-ouest de l’Alaska
Archéologie du Cap Espenberg où la question du Birnirk et de l’origine du Thulé dans le nord-ouest de l’Alaska Open
Cape Espenberg is a sandy spit on the Chukchi Sea coast in northwestern Alaska, containing the remains of 4000 years of human occupation and climatic change. Archaeological and paleo-ecological research since 2009 as part of a large plurid…