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Mostrando ítems 11-20 de 66
On- and off-shelf diving effort of juvenile elephant seals from Pennsula Valds determined by light loggers
(Alliance Communications Group Division Allen Press, 2011-08)
The shallow Patagonian Shelf off Pennsula Valds limits the dive depth of southern elephant seals (Mirounga leonina) to <100 m, an unusual circumstance for this deep-diving species. Beyond the shelf water depths of >1,000 ...
Regional variability in diving physiology and behavior in a widely distributed air-breathing marine predator, the South American sea lion (Otaria byronia)
(Company of Biologists Ltd, 2016)
Our understanding of how air-breathing marine predators cope with environmental variability is limited by our inadequate knowledge of their ecological and physiological parameters. Because of their wide distribution along ...
Cold birds under pressure: Can thermal substitution ease heat loss in diving penguins?
(Springer, 2016-02)
Thermoregulation could represent a significant fraction of the total energy budget of endotherms under unfavourable environmental conditions. This cost affects several traits of the ecology of an organism such as its ...
Exceptional foraging plasticity in King Penguins (Aptenodytes patagonicus) from a recently established breeding site in Tierra del Fuego, Chile
(Elsevier, 2021-08)
Animals constantly test the borders of their own ecological niche and tend to expand their range, which is now additionally challenged by global climate change. Following human exploitation throughout the Southern Ocean ...
Diving behavior of humpback whales (Megaptera novaeangliae) throughout their migratory cycle in the Western South Atlantic Ocean
(Universidade Federal de Juiz de Fora (UFJF)BrasilICB – Instituto de Ciências BiológicasPrograma de Pós Graduação em Biodiversidade e Conservação da NaturezaUFJF, 2021)
Variación inter e intraespecífica del ciclo respiratorio durante las inmersiones en tres especies de cormoranes patagónicosInter- and intraspecific variation of the breathing cycle during diving in three species of patagonian cormorants
(Asociación Ornitológica del Plata, 2009-12)
En tres sitios de nidificación ubicados en la costa patagónica de Argentina (Punta Loma, Caleta Malaspina y Puerto Deseado) se estudió en forma comparada la variación inter e intraespecífica de la relación entre la duración ...
Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
(Csiro Publishing, 2013-05)
How closely related marine organisms mitigate competition for resources while foraging at sea is not well understood, particularly the relative importance of interspecific and intraspecific mitigation strategies. Using ...
Intersexual differences in the diving behaviour of imperial cormorants
(Springer, 2011-05-18)
Intersexual differences in the foraging behaviour have been examined in several seabird species, especially those exhibiting sexual size dimorphism. We studied intersex behavioural differences in the Imperial Cormorant ...
Exceptional foraging plasticity in King Penguins (Aptenodytes patagonicus) from a recently established breeding site in Tierra del Fuego, Chile
(Elsevier, 2021-06-05)
Animals constantly test the borders of their own ecological niche and tend to expand their range, which is now additionally challenged by global climate change. Following human exploitation throughout the Southern Ocean ...
Sexual differences in the foraging behaviour of Magellanic Penguins related to stage of breeding
(Csiro Publishing, 2012-05)
Understanding the foraging behaviour of seabirds and its plasticity is vital to establish their role in marine food webs and their use as indicators of change in the availability of prey. The foraging behaviour of penguins ...