Heart rate regulation and extreme bradycardia in diving emperor penguins

Heart rate regulation and extreme bradycardia in diving emperor penguins

To investigate the diving heart rate (f(H)) response of the emperor penguin (Aptenodytes forsteri), the consummate avian diver, birds diving at an isolated dive hole in McMurdo Sound, Antarctica were outfitted with digital electrocardiogram recorders, two-axis accelerometers and time depth recorders...

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Veröffentlicht in:Journal of experimental biology 2008-04, Vol.211 (Pt 8), p.1169-1179
Hauptverfasser: Meir, Jessica U, Stockard, Torre K, Williams, Cassondra L, Ponganis, Katherine V, Ponganis, Paul J
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Aptenodytes forsteri
Bradycardia - physiopathology
Diving - physiology
Electrocardiography
Exhalation - physiology
Heart Rate - physiology
Ice Cover
Inhalation - physiology
Marine
Rest - physiology
Spheniscidae - physiology
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Beschreibung
Zusammenfassung:To investigate the diving heart rate (f(H)) response of the emperor penguin (Aptenodytes forsteri), the consummate avian diver, birds diving at an isolated dive hole in McMurdo Sound, Antarctica were outfitted with digital electrocardiogram recorders, two-axis accelerometers and time depth recorders (TDRs). In contrast to any other freely diving bird, a true bradycardia (f(H) significantly
ISSN:0022-0949
1477-9145
DOI:10.1242/jeb.013235