The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity

Detalhes bibliográficos
Autor(a) principal: Piercy, Joanna
Data de Publicação: 2015
Outros Autores: Rogers, Kip, Reichert, Michelle, Andrade, Denis V. [UNESP], Abe, Augusto S. [UNESP], Tattersall, Glenn J., Milsom, William K.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s00360-015-0927-3
http://hdl.handle.net/11449/160934
Resumo: The present study determined whether EEG and/or EMG recordings could be used to reliably define activity states in the Brazilian black and white tegu lizard (Tupinambis merianae) and then examined the interactive effects of temperature and activity states on strategies for matching O-2 supply and demand. In a first series of experiments, the rate of oxygen consumption (), breathing frequency (f (R)), heart rate (f (H)), and EEG and EMG (neck muscle) activity were measured in different sleep/wake states (sleeping, awake but quiet, alert, or moving). In general, metabolic and cardio-respiratory changes were better indictors of the transition from sleep to wake than were changes in the EEG and EMG. In a second series of experiments, the interactive effects of temperature (17, 27 and 37 A degrees C) and activity states on f (R), tidal volume (V (T)), the fraction of oxygen extracted from the lung per breath (FIO2-FEO2), f (H), and the cardiac O-2 pulse were quantified to determine the relative roles of each of these variables in accommodating changes in . The increases in oxygen supply to meet temperature- and activity-induced increases in oxygen demand were produced almost exclusively by increases in f (H) and f (R). Regression analysis showed that the effects of temperature and activity state on the relationships between f (H), f (R) and was to extend a common relationship along a single curve, rather than separate relationships for each metabolic state. For these lizards, the predictive powers of f (R) and f (H) were maximized when the effects of changes in temperature, digestive state and activity were pooled. However, the best r (2) values obtained were 0.63 and 0.74 using f (R) and f (H) as predictors of met abolic rate, respectively.
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spelling The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activityBody temperatureHeart rateBreathing rateMetabolic rateTegu lizardThe present study determined whether EEG and/or EMG recordings could be used to reliably define activity states in the Brazilian black and white tegu lizard (Tupinambis merianae) and then examined the interactive effects of temperature and activity states on strategies for matching O-2 supply and demand. In a first series of experiments, the rate of oxygen consumption (), breathing frequency (f (R)), heart rate (f (H)), and EEG and EMG (neck muscle) activity were measured in different sleep/wake states (sleeping, awake but quiet, alert, or moving). In general, metabolic and cardio-respiratory changes were better indictors of the transition from sleep to wake than were changes in the EEG and EMG. In a second series of experiments, the interactive effects of temperature (17, 27 and 37 A degrees C) and activity states on f (R), tidal volume (V (T)), the fraction of oxygen extracted from the lung per breath (FIO2-FEO2), f (H), and the cardiac O-2 pulse were quantified to determine the relative roles of each of these variables in accommodating changes in . The increases in oxygen supply to meet temperature- and activity-induced increases in oxygen demand were produced almost exclusively by increases in f (H) and f (R). Regression analysis showed that the effects of temperature and activity state on the relationships between f (H), f (R) and was to extend a common relationship along a single curve, rather than separate relationships for each metabolic state. For these lizards, the predictive powers of f (R) and f (H) were maximized when the effects of changes in temperature, digestive state and activity were pooled. However, the best r (2) values obtained were 0.63 and 0.74 using f (R) and f (H) as predictors of met abolic rate, respectively.Natural Sciences and Engineering Research Council of CanadaConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação para o Desenvolvimento da UNESP (FUNDUNESP)Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, CanadaUniv Estadual Paulista Rio Claro, Inst Nacl Ciencia & Tecnol Fisiol, Dept Zool, Rio Claro, SP, BrazilBrock Univ, Dept Biol Sci, St Catharines, ON L2S 3A1, CanadaUniv Estadual Paulista Rio Claro, Inst Nacl Ciencia & Tecnol Fisiol, Dept Zool, Rio Claro, SP, BrazilSpringerUniv British ColumbiaUniversidade Estadual Paulista (Unesp)Brock UnivPiercy, JoannaRogers, KipReichert, MichelleAndrade, Denis V. [UNESP]Abe, Augusto S. [UNESP]Tattersall, Glenn J.Milsom, William K.2018-11-26T16:17:19Z2018-11-26T16:17:19Z2015-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article891-903application/pdfhttp://dx.doi.org/10.1007/s00360-015-0927-3Journal Of Comparative Physiology B-biochemical Systemic And Environmental Physiology. Heidelberg: Springer Heidelberg, v. 185, n. 8, p. 891-903, 2015.0174-1578http://hdl.handle.net/11449/16093410.1007/s00360-015-0927-3WOS:000363952300007WOS000363952300007.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Comparative Physiology B-biochemical Systemic And Environmental Physiology0,952info:eu-repo/semantics/openAccess2023-12-19T06:23:07Zoai:repositorio.unesp.br:11449/160934Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:45:47.524066Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
title The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
spellingShingle The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
Piercy, Joanna
Body temperature
Heart rate
Breathing rate
Metabolic rate
Tegu lizard
title_short The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
title_full The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
title_fullStr The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
title_full_unstemmed The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
title_sort The relationship between body temperature, heart rate, breathing rate, and rate of oxygen consumption, in the tegu lizard (Tupinambis merianae) at various levels of activity
author Piercy, Joanna
author_facet Piercy, Joanna
Rogers, Kip
Reichert, Michelle
Andrade, Denis V. [UNESP]
Abe, Augusto S. [UNESP]
Tattersall, Glenn J.
Milsom, William K.
author_role author
author2 Rogers, Kip
Reichert, Michelle
Andrade, Denis V. [UNESP]
Abe, Augusto S. [UNESP]
Tattersall, Glenn J.
Milsom, William K.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Univ British Columbia
Universidade Estadual Paulista (Unesp)
Brock Univ
dc.contributor.author.fl_str_mv Piercy, Joanna
Rogers, Kip
Reichert, Michelle
Andrade, Denis V. [UNESP]
Abe, Augusto S. [UNESP]
Tattersall, Glenn J.
Milsom, William K.
dc.subject.por.fl_str_mv Body temperature
Heart rate
Breathing rate
Metabolic rate
Tegu lizard
topic Body temperature
Heart rate
Breathing rate
Metabolic rate
Tegu lizard
description The present study determined whether EEG and/or EMG recordings could be used to reliably define activity states in the Brazilian black and white tegu lizard (Tupinambis merianae) and then examined the interactive effects of temperature and activity states on strategies for matching O-2 supply and demand. In a first series of experiments, the rate of oxygen consumption (), breathing frequency (f (R)), heart rate (f (H)), and EEG and EMG (neck muscle) activity were measured in different sleep/wake states (sleeping, awake but quiet, alert, or moving). In general, metabolic and cardio-respiratory changes were better indictors of the transition from sleep to wake than were changes in the EEG and EMG. In a second series of experiments, the interactive effects of temperature (17, 27 and 37 A degrees C) and activity states on f (R), tidal volume (V (T)), the fraction of oxygen extracted from the lung per breath (FIO2-FEO2), f (H), and the cardiac O-2 pulse were quantified to determine the relative roles of each of these variables in accommodating changes in . The increases in oxygen supply to meet temperature- and activity-induced increases in oxygen demand were produced almost exclusively by increases in f (H) and f (R). Regression analysis showed that the effects of temperature and activity state on the relationships between f (H), f (R) and was to extend a common relationship along a single curve, rather than separate relationships for each metabolic state. For these lizards, the predictive powers of f (R) and f (H) were maximized when the effects of changes in temperature, digestive state and activity were pooled. However, the best r (2) values obtained were 0.63 and 0.74 using f (R) and f (H) as predictors of met abolic rate, respectively.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-01
2018-11-26T16:17:19Z
2018-11-26T16:17:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s00360-015-0927-3
Journal Of Comparative Physiology B-biochemical Systemic And Environmental Physiology. Heidelberg: Springer Heidelberg, v. 185, n. 8, p. 891-903, 2015.
0174-1578
http://hdl.handle.net/11449/160934
10.1007/s00360-015-0927-3
WOS:000363952300007
WOS000363952300007.pdf
url http://dx.doi.org/10.1007/s00360-015-0927-3
http://hdl.handle.net/11449/160934
identifier_str_mv Journal Of Comparative Physiology B-biochemical Systemic And Environmental Physiology. Heidelberg: Springer Heidelberg, v. 185, n. 8, p. 891-903, 2015.
0174-1578
10.1007/s00360-015-0927-3
WOS:000363952300007
WOS000363952300007.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal Of Comparative Physiology B-biochemical Systemic And Environmental Physiology
0,952
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 891-903
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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