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Lion and man in non-metric spaces
(Springer, 2018-12)
A lion and a man move continuously in a space X. The aim of the lion is to capture his prey while the man wants to escape forever. Which of them has a strategy? This question has been studied for different metric domains. ...
South American sea lions (Otaria flavescens) avoid killer whale (Orcinus orca) predation
(European Association for Aquatic Mammals, 2008-12)
South American sea lions (Otaria flavescens) are predictably preyed on by killer whales (Orcinus orca) at their breeding colonies in Peninsula Valdés, Argentina. Captures occur in shallow waters along the coastline. Killer ...
Food habits of the south american sea lion, Otaria flavescens, off Patagonia, Argentina
(NOAA's National Marine Fisheries Service. Scientific Publications Office, 2000-12)
Food habits of the South American sea lion (Otaria flavescens) off Patagonia were studied by means of stomach content analysis. The samples were collected during 1982–1987 and 1990–1998 in northern and central Patagonia. ...
Reduction of skull size in South American sea lions reveals density-dependent growth during population recovery
(Inter-Research, 2010-12)
Craniometrical data of male and female skulls collected from 1974 to 2007 were used to test the hypothesis that the somatic growth of South American sea lions Otaria flavescens in northern Patagonia has been affected by a ...
New records of South American sea lion Otaria flavescens predation on southern rockhopper penguins Eudyptes chrysocome at Staten Island, Argentina
(Springer, 2012-02)
Predation by fur seals and sea lions has been identified, among others, as a potential cause of the declines in rockhopper penguin populations. Here, we report a multiple predation event of southern rockhopper penguins ...
Le lion américain fossile (Panthera atrox) en Amérique du Sud: implications paléobiogéographiquesThe fossil American lion (Panthera atrox) in South America: Palaeobiogeographical implications
(Elsevier France-editions Scientifiques Medicales Elsevier, 2017-11)
À la fin du XIXe siècle et au début du XXe, des auteurs ont décrit plusieurs spécimens appartenant à un très grand félidé, de la taille d’un lion, dans différentes localités du Pléistocène supérieur du Chili méridional et ...
Ontogenic dietary changes in South American sea lions
(Wiley Blackwell Publishing, Inc, 2009-11)
Stable isotopes of carbon and nitrogen in the skull bones of South American sea lions Otaria flavescens from the Chubut province (Argentina) were analysed to determine whether their feeding habits change during ontogeny. ...
Living on the edge: thermoregulatory behaviour of South American sea lions, Otaria flavescens, at the northern limit of their Atlantic distribution
(Springer Heidelberg, 2019-02)
Terrestrial reproduction presents a thermoregulatory challenge for marine mammals, especially in a context of global warming. Pinnipeds, especially otariids, differ from other marine mammals in that most reproductive ...
Climate anomalies influence tooth growth patterns of South American sea lion
(Wiley Blackwell Publishing, Inc., 2021-08)
El Niño-Southern Oscillation (ENSO) and Southern Annular Mode (SAM) indirectly affect tooth growth of marine mammals, through changes in prey abundance, availability, and composition. This is reflected as variation in the ...
Time-activity Budget of the Snowy Sheathbill (Chionis albus) Wintering at a Sea Lion (Otaria flavescens) Haul-out in Argentina
(Waterbird Society, 2021-09-01)
This work aims to provide information regarding the behavioral ecology of the least studied of the two sheathbill species, the Snowy Sheathbill (Chionis albus), wintering in northern Argentina in a male South American Sea ...