Observations on Torpidity in Captive Chipmunks of the Genus Eutamias

Cade, Tom J.

doi:10.2307/1932172

Cited by 28 publications

(3 citation statements)

References 17 publications

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“…Forbes (1966) reported a 100% increase in body fat from July to October in this species in Minnesota. Corresponding autumnal increases have been recorded in other chipmunks (T e v i s, 1966; P a n u s k a, 1959; Cade, 1963;Jameson & Mead. 1964).…”

Section: Species Seasonally Activesupporting

confidence: 57%

Seasonal changes in body composition and caloric content of Great Basin rodents

Schreiber¹,

Johnson²

1975

Acta Theriol.

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Section: Species Seasonally Activesupporting

confidence: 57%

Seasonal changes in body composition and caloric content of Great Basin rodents

Schreiber¹,

Johnson²

1975

Acta Theriol.

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“…and Eutumius spp. is an adaptation to increase survival during a variety of unfavourable conditions, particularly when food is in short supply (Howard 1951;Hudson 1967; Bartholomew and Cade 1967;Cade 1968;French et a2. 1966).…”

Section: Discussionmentioning

confidence: 99%

Seasonal Variations in Circadian Rhythms of Deer Mice, in Northwestern Canada

Stebbins¹

1971

ARCTIC

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Circadian rhythms of Peromyscus maniculatus were studied at Heart Lake, Northwest Territories, in winter and spring of 1965-1966. Daily peaks of activity were of longer duration and higher amplitude in spring than in winter. In winter deer mice were frequently observed in torpor and most activity occurred at night. In spring daily peaks of activity began before dark and extended 4 to 5 hours into daylight of the next morning. &SUMÉ. Variations saisonnières dans le rythme circadien de laSouris d pattes blanches, Peromyscus maniculatus, dans le Nord-ouest du Canada. Au cours de l'hiver et du printemps 1965-66, on a étudié le rythme circadien de Perornyscus maniculatus à Heart Lake, Territoires du Nord-Ouest. Les sommets d'activité quotidienne étaient de plus longue durée et de plus grande amplitude au printemps qu'en hiver. En hiver, on observait souvent la Souris à pattes blanches dans un état de torpeur et presque toute son activité se produisait la nuit. Au printemps, les périodes d'activité maximale commençaient avant la nuit et se terminaient de 3 à 4 heures après l'aube du jour suivant. PESIOME. Cesonnue umenenu~ e mu~neLie~rne~~anocrnu osewaeü ~uzuu Peromyscus maniculatus e ceeepo-3udwoii Kanaae. ObcysrcAaroTcxx E J M ~H ~H M I I B x~laae~exx~e-mbHocTn P. maniculatus, HccmeAosaHHare B pafioae osepa XapT (Cesepo-SanaAHare TeppEITOpaH) 3HMOt EI BeCHOfi 1965-66 Pr.

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“…In some species, Eutamias spp. (6), Marmota monax (9), food deprivation appears to play a role but in others, Spermophilus spp., hibernation begins in the presence of food3 (28). Engels (10) attempted to correlate the climates of widely separated habitats with the dates of autumn disappearance.…”

Section: Introductionmentioning

confidence: 99%

Hibernation of eastern chipmunks (Tamias striatus) maintained under controlled conditions

Scott¹,

Fisher²

1972

Can. J. Zool.

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1972. Hibernation of eastern chipmunks (Tamias striatus) maintained under controlled conditions. Can. J. Zool. 50: 95-105.The hibernation pattern of captive eastern chipmunks maintained under controlled conditions of light and temperature was examined. It was consistent with the view that hibernation results from an endogenous rhythm with a periodicity of about a year, probably temperature independent.Continuous recording from nest bottom temperature sensors was tested for the first time with this species and found to be more accurate than the sawdust technique for detecting arousals. It also provided useful information about trends in body temperature.The hypothesis that a shift in the temperature at which heat-producing responses are mobilized occurs during hibernation and that it is responsible for the pattern of periodic arousals, is discussed in relation to the observations made. SCOTT, G. W., et K. C. FISHER. 1972. Hibernation of eastern chipmunks (Tamias striatus) maintained under controlled conditions. Can. J. Zool. 50: 95-105. Des tamias ray& ont kt6 gardbs en captivitk et soumis B des conditions contr8lks de temgrature et de luminositk pendant leur hibernation. Les rhultats de l'exp6rience s'accordent avec l'hypothhe selon laquelle l'hibernation est dktennink par un rythme endoghe B pkriodicitk quasi-annuelle, probablement indbpendant de la temgrature.Des sondes thermiques ? i enregistrement continu, utilisk pour la premikre fois chez cette espke, se sont avkrks plus efficaces que l'emploi du bran de scie pour determiner de f w n precise les moments d'kveil. On a pu aussi tirer de cette technique des renseignement utiles sur les variations de tempkitwe du corps.Ces observations ambent B discuter l'hypoth8se selon laquelle il se produirait u? dkplacement des seuils de temperature durant l'hibernatlon, un dkplacement responsable de la pblodicltk des moments d'kveil. SETOY, E. T. 1909.

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Observations on Torpidity in Captive Chipmunks of the Genus Eutamias

Cited by 28 publications

References 17 publications

Seasonal changes in body composition and caloric content of Great Basin rodents

Seasonal changes in body composition and caloric content of Great Basin rodents

Seasonal Variations in Circadian Rhythms of Deer Mice, in Northwestern Canada

Hibernation of eastern chipmunks (Tamias striatus) maintained under controlled conditions

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