Spheniscins, Avian β-Defensins in Preserved Stomach Contents of the King Penguin, Aptenodytes patagonicus
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چکیده
منابع مشابه
Diving energetics in king penguins (Aptenodytes patagonicus).
Dive duration in wild king penguins and the energetic cost of swimming in a 30m long swim channel were determined at Ile de la Possession, Crozet Archipelago, using external data loggers and respirometry, respectively. Calibrated electronic data loggers equipped with a pressure sensor were used to determine dive durations: 95% of dives were less than 6 min long and 66% of dives were less than 4...
متن کاملIs territory defence related to plumage ornaments in the king penguin Aptenodytes patagonicus ?
This paper has been withdrawn by the author
متن کاملLocalisation of an acoustic signal in a noisy environment: the display call of the king penguin Aptenodytes patagonicus.
King penguin chicks identify their parents by an acoustic signal, the display call. This call consists of a succession of similar syllables. Each syllable has two harmonic series, strongly modulated in frequency and amplitude, with added beats of varying amplitude generated by a two-voice system. Previous work showed that only one syllable of the call is needed for the chick to identify the cal...
متن کاملModulation of heart rate response to acute stressors throughout the breeding season in the king penguin Aptenodytes patagonicus.
'Fight-or-flight' stress responses allow animals to cope adaptively to sudden threats by mobilizing energy resources and priming the body for action. Because such responses can be costly and redirect behavior and energy from reproduction to survival, they are likely to be shaped by specific life-history stages, depending on the available energy resources and the commitment to reproduction. Here...
متن کاملAssessing a relationship between bone microstructure and growth rate: a fluorescent labelling study in the king penguin chick (Aptenodytes patagonicus).
Microstructure-function relationships remain poorly understood in primary bone tissues. The relationship between bone growth rate and bone tissue type, although documented in some species by previous works, remains somewhat unclear and controversial. We assessed this relationship in a species with extreme adaptations, the king penguin (Aptenodytes patagonicus). These birds have a peculiar growt...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2003
ISSN: 0021-9258
DOI: 10.1074/jbc.m306839200