Locomotor activity pattern in pairs of the subsocial desert isopod Hemilepistus reaumurii

Locomotor activity rhythm of fresh adult of H. reaumurii was recorded in pairs with ovigerous and with non-ovigerous females. According to double-plotted actograms and waveform curves, results showed the presence of different locomotor patterns. In fact, locomotor profiles of pairs with ovigerous fe...

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Bibliographic Details
Published in:Biological rhythm research 2017-05, Vol.48 (3), p.449-457
Main Authors: Ayari, Anas, Jelassi, Raja, Ghemari, Chedlia, Nasri-Ammar, Karima
Format: Article
Language:English
Subjects:
arid environment
Circadian rhythm
couple
Crustaceans
entraining conditions
Females
Hemilepistus reaumurii
Isopoda
Locomotor activity
locomotor rhythm
Oniscidea
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Summary:Locomotor activity rhythm of fresh adult of H. reaumurii was recorded in pairs with ovigerous and with non-ovigerous females. According to double-plotted actograms and waveform curves, results showed the presence of different locomotor patterns. In fact, locomotor profiles of pairs with ovigerous females were mainly bimodal whatever the recording conditions, whereas locomotor patterns were trimodal in pairs with non-ovigerous females. Results showed also that locomotor activity rhythm was more stable in the presence of the synchronizer (nLD cycle) than in constant darkness whatever the recording type. Moreover, the most important stability of the locomotor rhythm was observed under constant darkness and individuals were more active in pairs with ovigerous females than in pairs with non-ovigerous females.
ISSN:0929-1016
1744-4179
DOI:10.1080/09291016.2016.1268337