Circadian locomotor activity and response to different light conditions in the Volcano mouse,Neotomodon alstoni(Merriam, 1898)

Autor:	Jazmín Samario-Román, Citlalli Fuentes-Granados, Manuel Miranda-Anaya, Agustín Carmona-Castro, René Cárdenas-Vázquez, Enrique Moreno-Sáenz
Rok vydání:	2010
Předmět:	medicine.medical_specialty Rodent Physiology Neotomodon Biology Nocturnal Locomotor activity Endocrinology Physiology (medical) Internal medicine biology.animal medicine Sexual maturity Day length Circadian rhythm Entrainment (chronobiology) Ecology Evolution Behavior and Systematics
Zdroj:	Biological Rhythm Research. 41:269-278
ISSN:	1744-4179 0929-1016
DOI:	10.1080/09291010902863420
Popis:	The volcano mouse, Neotomodon alstoni, was studied in order to describe basic circadian behavior during free running and entrainment to parametric and non-parametric photoperiods. Responses to short and long days were also tested to ascertain any potential photoperiodic response. This species is endemic to the high grasslands of central Mexico. Its breeding peaks during summer, indicating a possible circannual regulation of reproduction. Our results indicate that locomotor activity in Neotomodon alstoni is typical of a nocturnal rodent when studied using running wheels, however, when activity was observed in freely moving recordings with no running wheel, locomotor activity shifts to a semidiurnal architecture when exposed to long day photoperiods. When gonadal activity was studied in males exposed to short and long days, significant differences were observed in testis size, nevertheless levels of testosterone and seminiferous tubuli indicated that day length does not inhibit sexual maturity in this speci...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::84960fc6169c0158d29b6350d4ee1405 https://doi.org/10.1080/09291010902863420 Zobrazit plný text záznamu