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
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
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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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 |
|
_version_ |
1808129243513618432 |