Seasonality of circadian locomotor activity in an insect
Identifieur interne : 001437 ( Main/Exploration ); précédent : 001436; suivant : 001438Seasonality of circadian locomotor activity in an insect
Auteurs : H. Meyer-Peters [Allemagne]Source :
- Journal of Comparative Physiology A [ 0340-7594 ] ; 1993-01-01.
English descriptors
Abstract
Abstract: Daily periodic locomotor activity of Carabus auronitens was recorded in a climate-constant laboratory with the animals exposed to naturally changing photoperiods. Most actograms exhibit directed seasonal variations of duration and phase position of daily activity. Seasonal locomotor activity starts in early spring (following dormancy) on a low daily level, first being confined to a short time span around dusk (and even shorter around dawn). In the course of season, the daily onsets of activity become closely related with sunset and the duration of daily activity is steadily extended with both parts of the bimodal phase fusing to a common, unimodal activity band by late spring. Subsequently, it is further extended into forenoon, until in summer (shortly before aestivation), spontaneous phase inversion turns activity periodicity from nocturnality into diurnality within 1 day. Such seasonal variations are paralleled by changes in the precision of synchronization of the individuals' activity rhythms to the entraining light/dark cycle. No geographical differences were detected. The results support the idea of the circadian clock as a system of two dynamically coupled physiological oscillators that invert their phase relation as soon as the natural dark phase falls short of some minimum-tolerable night length.
Url:
DOI: 10.1007/BF00213068
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001319
- to stream Istex, to step Curation: 001319
- to stream Istex, to step Checkpoint: 000F71
- to stream Main, to step Merge: 001519
- to stream Main, to step Curation: 001437
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Seasonality of circadian locomotor activity in an insect</title><author><name sortKey="Meyer Peters, H" sort="Meyer Peters, H" uniqKey="Meyer Peters H" first="H." last="Meyer-Peters">H. Meyer-Peters</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:6391F7918CC76A7F7380096D8FD5DB56A0ABE884</idno><date when="1993" year="1993">1993</date><idno type="doi">10.1007/BF00213068</idno><idno type="url">https://api.istex.fr/document/6391F7918CC76A7F7380096D8FD5DB56A0ABE884/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001319</idno><idno type="wicri:Area/Istex/Curation">001319</idno><idno type="wicri:Area/Istex/Checkpoint">000F71</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000F71</idno><idno type="wicri:doubleKey">0340-7594:1993:Meyer Peters H:seasonality:of:circadian</idno><idno type="wicri:Area/Main/Merge">001519</idno><idno type="wicri:Area/Main/Curation">001437</idno><idno type="wicri:Area/Main/Exploration">001437</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Seasonality of circadian locomotor activity in an insect</title><author><name sortKey="Meyer Peters, H" sort="Meyer Peters, H" uniqKey="Meyer Peters H" first="H." last="Meyer-Peters">H. Meyer-Peters</name><affiliation wicri:level="1"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Fachbereich 2 (Biologie/Chemie), Universität Bremen, Postfach 330 440, W-2800, Bremen</wicri:regionArea><wicri:noRegion>Bremen</wicri:noRegion><wicri:noRegion>Bremen</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Comparative Physiology A</title><title level="j" type="sub">Sensory, Neural and Behavioral Physiology</title><title level="j" type="abbrev">J Comp Physiol A</title><idno type="ISSN">0340-7594</idno><idno type="eISSN">1432-1351</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="1993-01-01">1993-01-01</date><biblScope unit="volume">171</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="713">713</biblScope><biblScope unit="page" to="724">724</biblScope></imprint><idno type="ISSN">0340-7594</idno></series><idno type="istex">6391F7918CC76A7F7380096D8FD5DB56A0ABE884</idno><idno type="DOI">10.1007/BF00213068</idno><idno type="ArticleID">Art3</idno><idno type="ArticleID">BF00213068</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0340-7594</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Carabid beetles</term><term>Circadian rhythms</term><term>Locomotor activity</term><term>Seasonality</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Daily periodic locomotor activity of Carabus auronitens was recorded in a climate-constant laboratory with the animals exposed to naturally changing photoperiods. Most actograms exhibit directed seasonal variations of duration and phase position of daily activity. Seasonal locomotor activity starts in early spring (following dormancy) on a low daily level, first being confined to a short time span around dusk (and even shorter around dawn). In the course of season, the daily onsets of activity become closely related with sunset and the duration of daily activity is steadily extended with both parts of the bimodal phase fusing to a common, unimodal activity band by late spring. Subsequently, it is further extended into forenoon, until in summer (shortly before aestivation), spontaneous phase inversion turns activity periodicity from nocturnality into diurnality within 1 day. Such seasonal variations are paralleled by changes in the precision of synchronization of the individuals' activity rhythms to the entraining light/dark cycle. No geographical differences were detected. The results support the idea of the circadian clock as a system of two dynamically coupled physiological oscillators that invert their phase relation as soon as the natural dark phase falls short of some minimum-tolerable night length.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country></list><tree><country name="Allemagne"><noRegion><name sortKey="Meyer Peters, H" sort="Meyer Peters, H" uniqKey="Meyer Peters H" first="H." last="Meyer-Peters">H. Meyer-Peters</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Eau/explor/LotaV3/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001437 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001437 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Eau
|area= LotaV3
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:6391F7918CC76A7F7380096D8FD5DB56A0ABE884
|texte= Seasonality of circadian locomotor activity in an insect
}}
| This area was generated with Dilib version V0.6.39. |  |