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Mostrando ítems 11-20 de 31
Women from Venus, men from Mars: Inter-sex foraging differences in the imperial cormorant Phalacrocorax atriceps a colonial seabird
(Wiley Blackwell Publishing, Inc, 2011)
Strong temporal consistency in the individual foraging behaviour of Imperial Shags Phalacrocorax atriceps
(Wiley Blackwell Publishing, Inc, 2014-05)
Individual consistency in foraging behaviour can generate behavioural variability within populations and may, ultimately, lead to species diversification. However, individual-based long-term behavioural studies are ...
Breeding biology of Magellanic Penguins (Spheniscus magellanicus) at the Beagle Channel: interannual variation and its relationship with foraging behaviour
(Wiley Blackwell Publishing, Inc, 2016-07)
Interannual variation in seabird foraging or reproductive behaviour may reflect fluctuations in marine resources. In this study, we evaluated different foraging and breeding parameters of Magellanic Penguins (Spheniscus ...
To the bottom of the heart: cloacal movement as an index of cardiac frequency, respiration and digestive evacuation in penguins
(Springer, 2003-11)
A system is presented which uses a Hall sensor and an adjacent magnet, attached close to the cloaca of penguins, to record defecation, respiration and hearth rates for both, free-living and those in captivity. The output ...
Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
(Wiley Blackwell Publishing, Inc, 2008-07)
Radiotelemetry was used to assess the distribution and diving behaviour of Rock Shags Phalacrocorax magellanicus and Red-legged Cormorants Phalacrocorax gaimardi breeding in sympatry, and Rock Shags breeding in isolation. ...
Fine-scale body and head movements allow to determine prey capture events in the Magellanic Penguin (Spheniscus magellanicus)
(Springer, 2021-06)
The identification of when, how and where animals feed is essential to estimate the amount of energy they obtain and to study the processes associated with prey search and consumption. We combined the use of animal-borne ...
Nocturnal feeding under artificial light conditions by Brown-Hooded Gull (Larus Maculipennis) in Puerto Madryn harbour (Chubut province, Argentina)Alimentación nocturna bajo iluminación artificial de la Gaviota Capucho-Café (Larus Maculipennis) en el muelle de Puerto Madryn (Chubut, Argentina)
(Asociación Ornitológica del Plata, 2010-12)
Se describe la alimentación nocturna en un ambiente marino de la Gaviota Capucho Café (Larus maculipennis) en noviembre de 2009. Las gaviotas se congregaron durante la noche en el extremo de un muelle de 800 m de extensión ...
Breeding experience and foraging behaviour of Imperial Shags (Leucocarbo atriceps) in Argentina
(Csiro Publishing, 2014-03)
Breeding success depends on efficient foraging behaviour by breeding individuals. However, foraging skills are acquired over time and foraging behaviour is expected to be optimised over the course of successive breeding ...
Foraging effort in Magellanic penguins: balancing the energy books for survival?
(Springer Verlag Berlín, 2014-11-27)
The determination of activity-specific energy expenditure of wild animals is key in ecology and conservation sciences. Energy management is crucial for seabirds during the breeding season when they need to maintain a ...