Great white shark teeth used as pendants and possible tools by early-middle Holocene terrestrial mammal hunter-gatherers in the Eastern Pampas (Southern South America)

2003 ◽  
Vol 13 (4) ◽  
pp. 222-231 ◽  
Author(s):  
A. L. Cione ◽  
M. Bonomo
Keyword(s):  
South America ◽  
White Shark ◽  
Hunter Gatherers ◽  
Southern South America ◽  
Terrestrial Mammal ◽  
Middle Holocene ◽  
Shark Teeth ◽  
Great White Shark

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

Additions to the Placopsis mycobiota (Trapeliaceae, Ascomycota) of southern South America, with notes on new records (including Aspiciliopsis macrophthalma), and a revised regional key to the species

2010 ◽  
Vol 42 (6) ◽  
pp. 727-737 ◽  
Author(s):  
David J. GALLOWAY
Keyword(s):  
South America ◽  
New Records ◽  
Southern South America ◽  
First Time

AbstractAspiciliopsis macrophthalma, Placopsis fusciduloides, P. gelidioides and P. tararuana are reported for the first time from southern South America. New records for 13 species of Placopsis in southern South America are reported, and a revised key to 22 species of Placopsis and A. macrophthalma in the region is given.

Species distribution modeling reveals the ecological niche of extinct megafauna from South America

2021 ◽  
pp. 1-8
Author(s):  
Thaísa Araújo ◽  
Helena Machado ◽  
Dimila Mothé ◽  
Leonardo dos Santos Avilla
Keyword(s):  
South America ◽  
Species Distribution ◽  
Environmental Changes ◽  
Species Distribution Modeling ◽  
Human Action ◽  
Northeastern Brazil ◽  
Climate Conditions ◽  
Middle Holocene ◽  
Distribution Modeling ◽  
The Impact

Abstract Climatic and environmental changes, as well as human action, have been cited as potential causes for the extinction of megafauna in South America at the end of the Pleistocene. Among megamammals lineages with Holarctic origin, only horses and proboscideans went extinct in South America during this period. This study aims to understand how the spatial extent of habitats suitable for Equus neogeus and Notiomastodon platensis changed between the last glacial maximum (LGM) and the middle Holocene in order to determine the impact that climatic and environmental changes had on these taxa. We used species distribution modeling to estimate their potential extent on the continent and found that both species occupied arid and semiarid open lands during the LGM, mainly in the Pampean region of Argentina, southern and northeastern Brazil, and parts of the Andes. However, when climate conditions changed from dry and cold during the LGM to humid and warm during the middle Holocene, the areas suitable for these taxa were reduced dramatically. These results support the hypothesis that climatic changes were a driving cause of extinction of these megamammals in South America, although we cannot rule out the impact of human actions or other potential causes for their extinction.

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