Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae)
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ygcen.2019.113295 http://hdl.handle.net/11449/196440 |
Resumo: | Life history transitions and hormones are known to interact and influence many aspects of animal physiology and behavior. The South-American tegu lizard (Salvator merianae) exhibits a profound seasonal shift in metabolism and body temperature, characterized by high daily activity during warmer months, including reproductive endothermy in spring, and metabolic suppression during hibernation in winter. This makes S. merianae an interesting subject for studies of interrelationships between endocrinology and seasonal changes in physiology/behavior. We investigated how plasma concentrations of hormones involved in regulation of energy metabolism (thyroid hormones T-4 and T-3; corticosterone) and reproduction (testosterone in males and estrogen/progesterone in females) correlate with activity and body temperature (Tb) across the annual cycle of captive held S. merianae in semi-natural conditions. In our initial model, thyroid hormones and corticosterone showed a positive relationship with activity and Tb with independent of sex: T-3 positively correlated with activity and Tb, while T-4 and corticosterone correlated positively with changes in Tb only. This suggests that thyroid hormones and glucocorticoids may be involved in metabolic transitions of annual cycle events. When accounting for sex-steroid hormones, our sex separated models showed a positive relationship between testosterone and Tb in males and progesterone and activity in females. Coupling seasonal endocrine measures with activity and Tb may expand our understanding of the relationship between animal's physiology and its environment. Manipulative experiments are required in order to unveil the directionality of influences existing among abiotic factors and the hormonal signaling of annual cyclicity in physiology/behavior. |
id |
UNSP_8e1332ecb4864e27fe207771fd66a86c |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/196440 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae)ActivityBody temperatureCorticosteroneHibernationProgesteroneTestosteroneThyroid hormonesLife history transitions and hormones are known to interact and influence many aspects of animal physiology and behavior. The South-American tegu lizard (Salvator merianae) exhibits a profound seasonal shift in metabolism and body temperature, characterized by high daily activity during warmer months, including reproductive endothermy in spring, and metabolic suppression during hibernation in winter. This makes S. merianae an interesting subject for studies of interrelationships between endocrinology and seasonal changes in physiology/behavior. We investigated how plasma concentrations of hormones involved in regulation of energy metabolism (thyroid hormones T-4 and T-3; corticosterone) and reproduction (testosterone in males and estrogen/progesterone in females) correlate with activity and body temperature (Tb) across the annual cycle of captive held S. merianae in semi-natural conditions. In our initial model, thyroid hormones and corticosterone showed a positive relationship with activity and Tb with independent of sex: T-3 positively correlated with activity and Tb, while T-4 and corticosterone correlated positively with changes in Tb only. This suggests that thyroid hormones and glucocorticoids may be involved in metabolic transitions of annual cycle events. When accounting for sex-steroid hormones, our sex separated models showed a positive relationship between testosterone and Tb in males and progesterone and activity in females. Coupling seasonal endocrine measures with activity and Tb may expand our understanding of the relationship between animal's physiology and its environment. Manipulative experiments are required in order to unveil the directionality of influences existing among abiotic factors and the hormonal signaling of annual cyclicity in physiology/behavior.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)University of Alaska Anchorage Environment and Natural Resources Institute, United States and Northern Arizona University, United StatesUniv Sao Paulo, Inst Biosci, Dept Physiol, BR-05508090 Sao Paulo, SP, BrazilSao Paulo State Univ, Coll Agr & Vet Sci, Dept Anim Morphol & Physiol, BR-14884900 Jaboticabal, SP, BrazilNo Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USAGeorge Mason Univ, Dept Biol, Fairfax, VA 22030 USASao Paulo State Univ, Coll Agr & Vet Sci, Dept Anim Morphol & Physiol, BR-14884900 Jaboticabal, SP, BrazilFAPESP: 2017/01652-2FAPESP: 2018/06192-2FAPESP: 2015/04849-6FAPESP: 2014/16320-7Elsevier B.V.Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)No Arizona UnivGeorge Mason UnivZena, Lucas A.Dillon, DanielleHunt, Kathleen E.Navas, Carlos A.Buck, C. LorenBicego, Kenia C. [UNESP]2020-12-10T19:45:00Z2020-12-10T19:45:00Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10http://dx.doi.org/10.1016/j.ygcen.2019.113295General And Comparative Endocrinology. San Diego: Academic Press Inc Elsevier Science, v. 285, 10 p., 2020.0016-6480http://hdl.handle.net/11449/19644010.1016/j.ygcen.2019.113295WOS:000504341800021Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGeneral And Comparative Endocrinologyinfo:eu-repo/semantics/openAccess2024-06-06T18:42:12Zoai:repositorio.unesp.br:11449/196440Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:32:54.118084Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
title |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
spellingShingle |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) Zena, Lucas A. Activity Body temperature Corticosterone Hibernation Progesterone Testosterone Thyroid hormones |
title_short |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
title_full |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
title_fullStr |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
title_full_unstemmed |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
title_sort |
Hormonal correlates of the annual cycle of activity and body temperature in the South-American tegu lizard (Salvator merianae) |
author |
Zena, Lucas A. |
author_facet |
Zena, Lucas A. Dillon, Danielle Hunt, Kathleen E. Navas, Carlos A. Buck, C. Loren Bicego, Kenia C. [UNESP] |
author_role |
author |
author2 |
Dillon, Danielle Hunt, Kathleen E. Navas, Carlos A. Buck, C. Loren Bicego, Kenia C. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) No Arizona Univ George Mason Univ |
dc.contributor.author.fl_str_mv |
Zena, Lucas A. Dillon, Danielle Hunt, Kathleen E. Navas, Carlos A. Buck, C. Loren Bicego, Kenia C. [UNESP] |
dc.subject.por.fl_str_mv |
Activity Body temperature Corticosterone Hibernation Progesterone Testosterone Thyroid hormones |
topic |
Activity Body temperature Corticosterone Hibernation Progesterone Testosterone Thyroid hormones |
description |
Life history transitions and hormones are known to interact and influence many aspects of animal physiology and behavior. The South-American tegu lizard (Salvator merianae) exhibits a profound seasonal shift in metabolism and body temperature, characterized by high daily activity during warmer months, including reproductive endothermy in spring, and metabolic suppression during hibernation in winter. This makes S. merianae an interesting subject for studies of interrelationships between endocrinology and seasonal changes in physiology/behavior. We investigated how plasma concentrations of hormones involved in regulation of energy metabolism (thyroid hormones T-4 and T-3; corticosterone) and reproduction (testosterone in males and estrogen/progesterone in females) correlate with activity and body temperature (Tb) across the annual cycle of captive held S. merianae in semi-natural conditions. In our initial model, thyroid hormones and corticosterone showed a positive relationship with activity and Tb with independent of sex: T-3 positively correlated with activity and Tb, while T-4 and corticosterone correlated positively with changes in Tb only. This suggests that thyroid hormones and glucocorticoids may be involved in metabolic transitions of annual cycle events. When accounting for sex-steroid hormones, our sex separated models showed a positive relationship between testosterone and Tb in males and progesterone and activity in females. Coupling seasonal endocrine measures with activity and Tb may expand our understanding of the relationship between animal's physiology and its environment. Manipulative experiments are required in order to unveil the directionality of influences existing among abiotic factors and the hormonal signaling of annual cyclicity in physiology/behavior. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-10T19:45:00Z 2020-12-10T19:45:00Z 2020-01-01 |
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/10.1016/j.ygcen.2019.113295 General And Comparative Endocrinology. San Diego: Academic Press Inc Elsevier Science, v. 285, 10 p., 2020. 0016-6480 http://hdl.handle.net/11449/196440 10.1016/j.ygcen.2019.113295 WOS:000504341800021 |
url |
http://dx.doi.org/10.1016/j.ygcen.2019.113295 http://hdl.handle.net/11449/196440 |
identifier_str_mv |
General And Comparative Endocrinology. San Diego: Academic Press Inc Elsevier Science, v. 285, 10 p., 2020. 0016-6480 10.1016/j.ygcen.2019.113295 WOS:000504341800021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
General And Comparative Endocrinology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
10 |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
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_ |
1808129218479915008 |