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dc.contributor.author
Wilson, Rory P.
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dc.contributor.author
Scolaro, Jose Alejandro
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dc.contributor.author
Quintana, Flavio Roberto
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dc.contributor.author
Siebert, U.
dc.contributor.author
thor Straten, M.
dc.contributor.author
Mills, K.
dc.contributor.author
Zimmer, I.
dc.contributor.author
Liebsch, N.
dc.contributor.author
Steinfurth, A.
dc.contributor.author
Spindler, G.
dc.contributor.author
Müller, G.
dc.date.available
2020-05-14T19:21:08Z
dc.date.issued
2003-11
dc.identifier.citation
Wilson, Rory P.; Scolaro, Jose Alejandro; Quintana, Flavio Roberto; Siebert, U.; thor Straten, M.; et al.; To the bottom of the heart: cloacal movement as an index of cardiac frequency, respiration and digestive evacuation in penguins; Springer; Marine Biology; 144; 4; 11-2003; 813-827
dc.identifier.issn
0025-3162
dc.identifier.uri
http://hdl.handle.net/11336/105147
dc.description.abstract
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 of the Hall sensor depends on a magnetic field , the strength of which is influenced in the presented scenario by the proximity of the magnet, which varies with movement of the cloaca. The elasticity of the cloaca results in minute, but perceptible, movements associated with the hearth, respiration and defecation, although placement of the magnet and sensor is critical, and not all parameters can be measured all of the time. The system, incorporating a logger that can record at frequencies of 50 Hz, was tested on 17 captive and 4 free-living Magellanic penguins, Spheniscus magellanicus, in Argentina. It showed increased defecation rate associated with feeding, the expected trends in bradycardia and tachycardia associated with diving and appeared to record some movement of air sacs associated with breathing. The concept of measuring minute changes in relative exterior body positions as a cue to internal processes may be important in future studies for both free-living and captive animals particularly since it is non-invasive and relatively easy to deploy.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
HEART RATES
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CLOACAL SENSOR
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MAGELLANIC PENGUIN
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SEABIRDS
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
To the bottom of the heart: cloacal movement as an index of cardiac frequency, respiration and digestive evacuation in penguins
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-04-27T14:42:58Z
dc.journal.volume
144
dc.journal.number
4
dc.journal.pagination
813-827
dc.journal.pais
Alemania
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dc.description.fil
Fil: Wilson, Rory P.. Institut für Meereskunde Kiel; Alemania
dc.description.fil
Fil: Scolaro, Jose Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Quintana, Flavio Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Siebert, U.. Forschung und Technologie Zentrum; Alemania
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Fil: thor Straten, M.. Institut für Meereskunde Kiel; Alemania
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Fil: Mills, K.. PRBO Conservation Science; Estados Unidos
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Fil: Zimmer, I.. Institut für Meereskunde Kiel; Alemania
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Fil: Liebsch, N.. Institut für Meereskunde Kiel; Alemania
dc.description.fil
Fil: Steinfurth, A.. Institut für Meereskunde Kiel; Alemania
dc.description.fil
Fil: Spindler, G.. No especifíca;
dc.description.fil
Fil: Müller, G.. Institut für Meereskunde Kiel; Alemania
dc.journal.title
Marine Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00227-003-1247-9
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00227-003-1247-9
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