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Human paleodiet studies between ca. 3300–1500 years BP in Quebrada de Los Corrales (Tucumán, Argentina)
(Elsevier Ltd, 2020-08)
In Quebrada de Los Corrales, located in northwestern Argentina, a local economic transitional process took place between ca. 3800 and 2000 BP, during which groups of hunter-gatherers incorporated agriculture and pastoralism. ...
Tracking data and retrospective analyses of diet reveal the consequences of loss of marine subsidies for an obligate scavenger, the andean condor
(The Royal Society, 2018-05-30)
Over the last century, marine mammals have been dramatically reduced in the world’s oceans. We examined evidence that this change caused dietary and foraging pattern shifts of the Andean condor (Vultur gryphus) in Patagonia. ...
Do penguins share? Evidence of foraging niche segregation between but not within two sympatric, central-place foragers
(Inter-Research, 2016-04)
Niche theory predicts that sympatric species should differentiate ecologically in order to co-exist and conspecifics will also differentiate to reduce intra-specific competition. As central-place foragers, colonial breeding ...
What´s for dinner mom? Selective provisioning in southern rockhopper penguins (Eudyptes chrysocome)
(Springer, 2019-08)
Breeding seabirds must balance self-care and reproduction, especially once offspring have hatched and have to be fed regularly. Seabirds may selectively provision chicks with higher quality food than they consume themselves. ...
Sex-specific spatial use of the winter foraging areas by Magellanic penguins and assessment of potential conflicts with fisheries during winter dispersal
(Public Library of Science, 2021-08)
Magellanic penguins (Spheniscus magellanicus) disperse widely during winter and are a major consumer of marine resources over the Patagonian Shelf. Magellanic penguins were equipped with geolocators at Martillo Island in ...
A jellyfish diet for the herbivorous green turtle Chelonia mydas in the temperate SW Atlantic
(Springer, 2014-02)
Feeding ecology of juvenile green turtles (Chelonia mydas) was studied from 2008 to 2011 at Samborombón Bay (35°30′–36°30′S, Argentina), combining data on digestive tract examination and stable isotope analysis through a ...
Historic diet change of the South American sea lion in Patagonia as revealed by isotopic analysis
(Inter-Research, 2009-05)
Carbon and nitrogen isotopic analyses of skull bone were used to investigate how sealing and the development of industrial fishing have affected the diet of the South American sea lion Otaria flavescens in northern Patagonia. ...
Connectivity of temperate shallow lakes to groundwater in the Pampean Plain, Argentina: A remote sensing and multi-tracer approach
(Elsevier Science, 2021-05)
The Pampean Plain in Argentina is one of the most extended plain regions of the world with numerous wetland systems and very shallow lakes. Certain anomalies related to geomorphology and shallow lakes’ hydrology are ...
The Southernmost Pre-Columbian Dogs in the Americas: Phenotype, Chronology, Diet and Genetics
(Taylor & Francis Ltd, 2021-05)
The archaeological record shows the presence of medium-sized dogs with mesocephalic skulls in Southeast South America, from at least the end of the third millennium BP to historical times, along 700 km from southern Brazil ...
High-resolution records of growth temperature and life history of two Nacella limpet species, Tierra del Fuego, Argentina
(Elsevier Science, 2020-02)
Stable isotope ratios in patelloid limpets of the genus Patella have been established as proxies for coastal environmental change at sub-monthly resolution along the eastern North Atlantic and Mediterranean Sea. Nacella ...