Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula

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We studied activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula, during the 1992-93 summer. We counted the number of penguins crossing a specific point on their route to and from the colony. Penguins showed a strong daily rhythm of activity, with a two-...

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Autores principales:	Quintana, Rubén Darío, Pratolongo, Paula Daniela
Publicado:	2005
Materias:	Activity rhythms Antarctic Peninsula Circadian clock Daily activity Gentoo penguin Pygoscelis papua activity pattern circadian rhythm environmental cue seabird Antarctica Arctic and Antarctic Cierva Point West Antarctica World Spheniscidae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00294470_v52_n3_p133_Quintana http://hdl.handle.net/20.500.12110/paper_00294470_v52_n3_p133_Quintana
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00294470_v52_n3_p133_Quintana
record_format	dspace
spelling	paper:paper_00294470_v52_n3_p133_Quintana2023-06-08T14:55:15Z Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula Quintana, Rubén Darío Pratolongo, Paula Daniela Activity rhythms Antarctic Peninsula Circadian clock Daily activity Gentoo penguin Pygoscelis papua activity pattern circadian rhythm environmental cue seabird Antarctic Peninsula Antarctica Arctic and Antarctic Cierva Point West Antarctica World Pygoscelis papua Spheniscidae We studied activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula, during the 1992-93 summer. We counted the number of penguins crossing a specific point on their route to and from the colony. Penguins showed a strong daily rhythm of activity, with a two-peak pattern for those leaving the colony and a one-peak pattern for those returning. The peak of penguins departing to sea was at dawn, with a secondary peak in the afternoon which was coincident with the peak of returns. Although this behaviour could be explained by nest relief schedules, the pattern remained once crèches had formed. The main peak of departures strongly correlated with sunrise, which might support the existence of a light signal synchronizing activity. Even though an external factor could be triggering movements, an endogenous circadian clock might drive both patterns. © The Ornithological Society of New Zealand, Inc. 2005. Fil:Quintana, R.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pratolongo, P.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00294470_v52_n3_p133_Quintana http://hdl.handle.net/20.500.12110/paper_00294470_v52_n3_p133_Quintana
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Activity rhythms Antarctic Peninsula Circadian clock Daily activity Gentoo penguin Pygoscelis papua activity pattern circadian rhythm environmental cue seabird Antarctic Peninsula Antarctica Arctic and Antarctic Cierva Point West Antarctica World Pygoscelis papua Spheniscidae
spellingShingle	Activity rhythms Antarctic Peninsula Circadian clock Daily activity Gentoo penguin Pygoscelis papua activity pattern circadian rhythm environmental cue seabird Antarctic Peninsula Antarctica Arctic and Antarctic Cierva Point West Antarctica World Pygoscelis papua Spheniscidae Quintana, Rubén Darío Pratolongo, Paula Daniela Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula
topic_facet	Activity rhythms Antarctic Peninsula Circadian clock Daily activity Gentoo penguin Pygoscelis papua activity pattern circadian rhythm environmental cue seabird Antarctic Peninsula Antarctica Arctic and Antarctic Cierva Point West Antarctica World Pygoscelis papua Spheniscidae
description	We studied activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula, during the 1992-93 summer. We counted the number of penguins crossing a specific point on their route to and from the colony. Penguins showed a strong daily rhythm of activity, with a two-peak pattern for those leaving the colony and a one-peak pattern for those returning. The peak of penguins departing to sea was at dawn, with a secondary peak in the afternoon which was coincident with the peak of returns. Although this behaviour could be explained by nest relief schedules, the pattern remained once crèches had formed. The main peak of departures strongly correlated with sunrise, which might support the existence of a light signal synchronizing activity. Even though an external factor could be triggering movements, an endogenous circadian clock might drive both patterns. © The Ornithological Society of New Zealand, Inc. 2005.
author	Quintana, Rubén Darío Pratolongo, Paula Daniela
author_facet	Quintana, Rubén Darío Pratolongo, Paula Daniela
author_sort	Quintana, Rubén Darío
title	Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula
title_short	Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula
title_full	Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula
title_fullStr	Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula
title_full_unstemmed	Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula
title_sort	activity rhythms at a gentoo penguin (pygoscelis papua) colony at cierva point, antarctic peninsula
publishDate	2005
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00294470_v52_n3_p133_Quintana http://hdl.handle.net/20.500.12110/paper_00294470_v52_n3_p133_Quintana
work_keys_str_mv	AT quintanarubendario activityrhythmsatagentoopenguinpygoscelispapuacolonyatciervapointantarcticpeninsula AT pratolongopauladaniela activityrhythmsatagentoopenguinpygoscelispapuacolonyatciervapointantarcticpeninsula
_version_	1768542256046800896

Activity rhythms at a gentoo penguin (Pygoscelis papua) colony at Cierva Point, Antarctic Peninsula

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