Light and social effects on the free-running circadian activity rhythm in common marmosets (Callithrix jacchus; Primates): social masking, pseudo-splitting, and relative coordination

Erkert, Hans G.; Nagel, B.; Stephani, Irene

doi:10.1007/bf00300520

Cited by 82 publications

(23 citation statements)

References 32 publications

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“…The results described by Erkert et al (1986), Erkert and Schardt (1991) and Glass et al (2001) also support this hypothesis. According to Erkert et al (1986) and Erkert and Schardt (1991), animals showed positive masking, relative coordination and social Figure 6.…”

Section: Biological Rhythm Researchsupporting

confidence: 89%

“…Thus, vocalisations are the most efficient means of communication for contact among animals, even at greater distances (Epple 1968;Schrader & Todt 1993;Bezerra & Souto 2008;Bezerra et al 2009). Previous studies have observed entrainment, relative coordination, positive masking and pseudo-splitting of circadian motor activity rhythm in marmosets likely induced by conspecific vocalisation (Erkert et al 1986;Erkert & Schardt 1991). The authors suggested that sound cues are weak zeitgebers for marmosets and that the effectiveness of a social zeitgeber in this species is dependent on the degree of acquaintance and proximity of endogenous periods among animals.…”

Section: Introductionmentioning

confidence: 95%

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Conspecific vocalisations modulate the circadian activity rhythm of marmosets

Silva

Pontes

Cavalcante

et al. 2014

Biological Rhythm Research

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Conspecific vocalisations have an important ecological role for marmosets and likely modulate the circadian timing system. However, the effect of this specific cue on circadian activity rhythm (CAR) has not been evaluated. To analyse the synchroniser effect of conspecific vocalisations on CAR in marmosets, the motor activity of five isolated adult males was continuously recorded in rooms with constant dim light (~2 lx) and attenuated sound. All animals presented positive masking, four presented relative coordination and three presented temporary entrainment associated with the daily pattern of vocalisations from animals kept outdoors, similarly to previous studies that assessed social cues. Furthermore, most animals displayed a shortened circadian period in response to conspecific vocalisation pulses that were reproduced daily for 30 days under total darkness. This is evidence that a non-photic cue with ecological significance can modulate the CAR, reinforcing the role of conspecific vocalisation as an important zeitgeber for marmosets.

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Section: Biological Rhythm Researchsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 95%

Conspecific vocalisations modulate the circadian activity rhythm of marmosets

Silva

Pontes

Cavalcante

et al. 2014

Biological Rhythm Research

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“…Mechanistically, such changes in melatonin concentrations could either be achieved via suppression of melatonin by light [29,30], but not in nightactive birds, or by an activity feedback on melatonin secretion itself [31][32][33][34]. An activity feedback could explain the fact that Lapland longspurs (Calcarius lapponicus) breeding under continuous daylight in the high Arctic have strongly suppressed overall melatonin levels, but nevertheless show slight but significant daily melatonin rhythms [24].…”

Section: Discussionmentioning

confidence: 99%

Do night-active birds lack daily melatonin rhythms? A case study comparing a diurnal and a nocturnal-foraging gull species

et al. 2006

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Plasma melatonin concentrations in most animals investigated so far increase at night regardless of whether individuals are day or night active. Nevertheless, daily melatonin amplitudes are often seasonally adjusted to ecological conditions, with birds that breed at high latitudes and migrate during the night showing lower daily amplitudes. Here we investigate whether nocturnal seabirds, gulls that feed at night, also show a low melatonin amplitude because they have to be active predominantly during the night but also intermittently during the day. We sampled free-living nocturnal-foraging swallow-tailed gulls (Creagrus furcatus) on two Galapagos islands every $4 h and compared their plasma melatonin concentrations with those of related black-headed gulls (Larus ridibundus) sampled in the Netherlands. Like most seabirds, the black-headed gulls showed generally low melatonin concentrations, but clear diel cycles. The swallow-tailed gulls, on the other hand, had similarly low absolute melatonin concentrations, but no detectable diel changes. Despite problems inherent in comparisons between two species and field/ lab setups, our data lend support to the hypothesis that the lack of a diel melatonin rhythm allows animals to be active at any time.

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“…In the absence of the light-dark cycle (in constant light or dark), nonphotic stimuli such as activity, wheel running, food availability, and social stimuli, can entrain the endogenous circadian clock located in the SCN (e.g., Mistlberger 1991, Mrosovsky 1988 or mask the endogenous circadian system (e.g., Eckert et al 1986, Gattermann & Weinandy 1997, Refinetti et al 1992. Masking (Aschoff 1960) is defined as "any process that distorts the original output from the internal clock whether this originates from inside or outside the body" (Minors & Waterhouse 1989).…”

Section: Plasticity Of Diel Rhythms (Laboratory Experiments)mentioning

confidence: 99%

Partitioning of Time as an Ecological Resource

Kronfeld‐Schor

Dayan

2003

Annu. Rev. Ecol. Evol. Syst.

785

684

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s Abstract Animal species have evolved different diel activity rhythms that are of adaptive value. Theory suggests that diel temporal partitioning may facilitate coexistence between competitors and between predators and prey. However, relatively few studies demonstrate a temporal shift that is predation-or competition-induced. Recorded shifts are usually within the preferred activity phase of animal species (day or night), although there are some inversions to the opposite phase cycle. Temporal partitioning is not perceived as a common mechanism of coexistence. This rarity has been variously ascribed to theoretical considerations and to the rigidity of time-keeping mechanisms, as well as to other physiological and anatomical traits that may constrain activity patterns. Our decade-long study of spiny mice of rocky deserts demonstrates that, while different factors select for activity patterns, endogenous rhythmicity may be an evolutionary constraint.

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Light and social effects on the free-running circadian activity rhythm in common marmosets (Callithrix jacchus; Primates): social masking, pseudo-splitting, and relative coordination

Cited by 82 publications

References 32 publications

Conspecific vocalisations modulate the circadian activity rhythm of marmosets

Conspecific vocalisations modulate the circadian activity rhythm of marmosets

Do night-active birds lack daily melatonin rhythms? A case study comparing a diurnal and a nocturnal-foraging gull species

Partitioning of Time as an Ecological Resource

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