Circadian Rhythm in Mammalian Body Temperature Entrained by Cyclic Pressure Changes

Hayden, Page; Lindberg, R. G.

doi:10.1126/science.164.3885.1288

Cited by 27 publications

(9 citation statements)

References 18 publications

(4 reference statements)

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“…Artificial electric fields (Wever, 1971) and cycles of atmospheric pressure (Hayden and Lindberg, 1969) modified various circadian parameters and even produced entrainment in humans and mice, respectively, but the influence of variations in these parameters on activity in the natural environment has not been documented.…”

Section: Introductionmentioning

confidence: 99%

Vertebrate Behavioral Rhythms

Rusak

1981

Biological Rhythms

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INTRODUCTIONInterest in rhythms of animal behavior derives from the recognition that the biological value of a behavior depends as much on when it occurs as on the particular form it takes (see Enright, 1970, and Chapter 15). It follows that a meaningful ethogram of any ~pecies should describe both species-typical motor patterns and species-typical timing of behavior. This chapter surveys the variety of behavioral rhythms that have been studied and the range of species in which they have been described.There are several problems with most of the available descriptions of behavioral rhythmicity. One is analogous to a classical problem in descriptive ethology: that of determining appropriate units of analysis. Ethologists have recognized that significant features of behavior, such as the degree of apparent stereotypy, are to a large extent determined by the temporal and spatial resolution of the recording procedure (Barlow, 1968). Reports of behavioral rhythms have generally ignored this issue and have included data that are grouped in a great variety of ways across hours, days, and individuals. The temporal resolution of such behavioral recording can determine whether particular rhythms are detected and what their apparent characteristics are. A simple example is that recording only the degree of "nocturnality" of a behavior may lead to the erroneous conclusion that a rhythm has been lost when only its phase relation to the light cycle has changed.In other situations the appropriateness of particular units of analysis is more ambiguous. In a field study of monkey troops (Nilgiri langurs, Presby tis johnii), Horwich (1976) recorded hourly means of feeding and calling averaged over several days; the data obtained showed clear dawn and dusk peaks, especially of feeding. However, a finer-grained analysis of individual troops during a single day revealed previously undetected ultradian behavioral cycles. Horwich concluded that the presence of significantly different individual (or troop) patterns and day-to-day variations can be obscured by grouping data across individuals and over days in search of the population mean. But the most detailed analysis is not always the best, since excessive attention to detail and individual differences can obscure biologically significant population trends and prevent the formulation of meaningful generalizations.In order to choose among these possible descriptive strategies, it is useful first to identify some of the sources of behavioral variability among individuals and across time. If individual variability is generated as the sum of independent, stochastic determinants, then the average pattern in the population will also be the modal (i.e., most common) pattern. But if individual variability reflects the presence of naturally separate subpopulations, then the "species-typical pattern" may have little biological meaning. To take an extreme example, a bimodal activity pattern in a population might result from one subpopulation's preying on dawn-active species and another's utilizin...

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Section: Introductionmentioning

confidence: 99%

Vertebrate Behavioral Rhythms

Rusak

1981

Biological Rhythms

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“…In view of the similarities of thermorégulation in ectothermic and endothermic vertebrates (see review in Crawshaw, 1980), the possibility of endogenous lunar variations in the physiological and behavioural thermorégulation of other vertebrates, including mammals, should also be considered. Lunar periodicities in biological responses have been attributed to lunar variations in geomagnetic, electromagnetic and other associated geophysical factors (Brown, 1965(Brown, , 1976, which conceivably could influence thermorégulation (Hayden and Lindberg, 1969).…”

Section: Discussionmentioning

confidence: 99%

Endogenous lunar rhythm in the behavioural thermoregulation of a teleost fish, the white sucker,Catostomus commersoni

Kavaliers¹

1982

Journal of Interdisciplinary Cycle Research

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The white sucker, Catostomus commersoni, displays a diel rhythm of behavioural thermoregulation in a horizontal thermal gradient. Under LD 12:12 single fish select significantly higher temperatures in the scotophase than in the photophase. An endogenous lunar rhythm exists in the absolute and maximum and minimum temperatures selected. Significantly higher temperatures (+2°C) are selected at the times of the new moon than at the times of the full moon. This provides the first demonstration of an endogenous lunar rhythm in the thermoregulatory behaviour of a vertebrate.

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“…Examples of non-photic entraining agents such as cycles of temperature (Hoffmann, 1968;Pittendrigh, I960), species-specific song or sound (Gwinner, 1966;Menaker et al, 1966), pressure (Enright, 1965a;Hayden et al, 1969), electrostatic fields (Dowse et al, 1969) or social factors in humans (Aschoff et al, 1971) are few in number; they only serve to emphasize the generalization that for the majority of species light is the primary and, in most cases, the only known synchronizer (Hoffmann, 1969).…”

Section: Patterns Of Synchronizationmentioning

confidence: 98%

Free‐running rhythms and patterns of circadian entrainment in three species of diurnal rodents

DeCoursey¹

1973

Journal of Interdisciplinary Cycle Research

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Circadian Rhythm in Mammalian Body Temperature Entrained by Cyclic Pressure Changes

Abstract: A 24-hour cycle of pressure (1.0 to 1.09 atmospheres) can act as a zeitgeber to entrain the endogenous circadian rhythm of body temperature in pocket mice (Perognathus longimembris) under constant conditions of environmental temperature and light.

Cited by 27 publications

References 18 publications

Vertebrate Behavioral Rhythms

Vertebrate Behavioral Rhythms

Endogenous lunar rhythm in the behavioural thermoregulation of a teleost fish, the white sucker,Catostomus commersoni

Free‐running rhythms and patterns of circadian entrainment in three species of diurnal rodents

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