Stable isotope studies in the Salitroso Lake Basin (southern Patagonia, Argentina): assessing diet of Late Holocene hunter-gatherers

2009 ◽  
Vol 19 (2) ◽  
pp. 297-308 ◽  
Author(s):  
A. Tessone ◽  
A. F. Zangrando ◽  
G. Barrientos ◽  
R. Goñi ◽  
H. Panarello ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Late Holocene ◽  
Lake Basin ◽  
Hunter Gatherers ◽  
Southern Patagonia ◽  
Isotope Studies

Stable isotope evidence supports pelagic fishing by hunter-gatherers in southern South America during the Late Holocene

2016 ◽  
Vol 8 ◽  
pp. 486-491 ◽  
Author(s):  
Atilio Francisco Zangrando ◽  
Luciana Riccialdelli ◽  
Sayuri Kochi ◽  
Jonathan W. Nye ◽  
Augusto Tessone
Keyword(s):  
Stable Isotope ◽  
South America ◽  
Late Holocene ◽  
Hunter Gatherers ◽  
Southern South America ◽  
Isotope Evidence ◽  
Pelagic Fishing

Shifting niches of marine predators due to human exploitation: the diet of the South American sea lion (Otaria flavescens) since the late Holocene as a case study

Paleobiology ◽  
2015 ◽  
Vol 41 (3) ◽  
pp. 387-401 ◽  
Author(s):  
Lisette Zenteno ◽  
Florencia Borella ◽  
Julieta Gómez Otero ◽  
Ernesto Piana ◽  
Juan Bautista Belardi ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Trophic Level ◽  
Late Holocene ◽  
Stable Isotope Ratios ◽  
South American ◽  
The South ◽  
Sea Lion ◽  
Otaria Flavescens ◽  
South American Sea Lion ◽  
Southern Patagonia

Abstract—Stable isotope ratios of carbon and nitrogen in archaeological and modern bone samples have been used to reconstruct the dietary changes of the South American sea lionOtaria flavescensfrom the late Holocene to the present in the southwestern Atlantic. We sampled bones from archaeological sites in northern-central and southern Patagonia, Argentina, and bones housed in modern scientific collections. Additionally, we analyzed the stable isotope ratios in ancient and modern shells of intertidal molluscs to explore changes in the isotope baseline and allow comparison between bone samples from different periods after correction for baseline shifts. Results confirmed the trophic plasticity of the South American sea lion, demonstrated the much larger impact of modern exploitation of marine resources as compared with that of hunter-gatherers, and underscored the dissimilarity between the past and modern niches of exploited species. These conclusions are supported by the rather stable diet of South American sea lions during several millennia of aboriginal exploitation, in both northern-central and southern Patagonia, and the dramatic increase in trophic level observed during the twentieth century. The recent increase in trophic level might be related to the smaller population size resulting from modern sealing and the resulting reduced intraspecific competition. These results demonstrate how much can be learned about the ecology of modern species thanks to retrospective studies beyond the current, anthropogenically modified setting where ecosystem structure is totally different from that in the pristine environments where current species evolved.

Forests, steppes, and coastlines

2017 ◽  
Author(s):  
Luis A. Borrero
Keyword(s):  
Late Holocene ◽  
Early Holocene ◽  
Coastal Resources ◽  
Human Diet ◽  
Hunter Gatherers ◽  
Middle Holocene ◽  
European Contact ◽  
Southern Patagonia ◽  
Coastal Birds ◽  
Human Colonization

The human colonization of southern Patagonia began over 11,500 radiocarbon years bp. The first colonizers exploited Pleistocene megamammals and camelids. During the Early Holocene, after the extinction of the megamammals, hunter-gatherers concentrated on the exploitation of camelids. During the Middle Holocene a full exploitation of coastal resources began—pinnipeds, molluscs, and coastal birds. The main trends observed in the exploitation of these animals through time were in the intensity of utilization. Huemul and Rheidae were discontinuously exploited in the interior, particularly in the forests. On the coasts, molluscs, fish, and birds complemented the human diet, especially during the Late Holocene. The main subsistence changes after the European contact resulted from the introduction of sheep and horses.

scholarly journals Stable isotope evidence of diet breadth expansion and regional dietary variation among Middle-to-Late Holocene Hunter-Gatherers of Central California

2020 ◽  
Vol 29 ◽  
pp. 102182
Author(s):  
Eric J. Bartelink ◽  
Melanie M. Beasley ◽  
Jelmer W. Eerkens ◽  
Karen S. Gardner ◽  
Randy S. Wiberg ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Late Holocene ◽  
Diet Breadth ◽  
Hunter Gatherers ◽  
Central California ◽  
Isotope Evidence ◽  
Dietary Variation

LATE HOLOCENE HYDROCLIMATE RECONSTRUCTION FROM LAKE CHICHOJ, GUATEMALA USING STABLE ISOTOPE ANALYSIS OF SEDIMENTS

2017 ◽  
Author(s):  
Peter Mortensen ◽  
◽  
Nathan D. Stansell ◽  
Byron A. Steinman ◽  
Gilles Y. Brocard ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Late Holocene ◽  
Isotope Analysis

Power, security, and exchange: Impacts of a Late Holocene volcanic eruption in Subarctic North America

2021 ◽  
pp. 019769312098682
Author(s):  
Todd J Kristensen ◽  
John W Ives ◽  
Kisha Supernant
Keyword(s):  
North America ◽  
Social Relationships ◽  
Cultural Change ◽  
Volcanic Eruption ◽  
Late Holocene ◽  
River Basins ◽  
Adaptive Responses ◽  
Major Event ◽  
Hunter Gatherers ◽  
Bow And Arrow

We synthesize environmental and cultural change following a volcanic eruption at A.D. 846–848 in Subarctic North America to demonstrate how social relationships shaped responses to natural disasters. Ethnohistoric accounts and archaeometric studies reveal differences in human adaptations in the Yukon and Mackenzie river basins that relate to exertions of power over contested resources versus affordances of security to intercept dispersed migrating animals. The ways that pre-contact hunter-gatherers maintained or redressed ecological imbalances influenced respective trajectories of resilience to a major event. Adaptive responses to a volcanic eruption affected the movement of bow and arrow technology and the proliferation of copper use in northwest North America.

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