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Hoverfly locomotor activity is resilient to external influence and intrinsic factors
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiology. Flinders Univ S Australia, Ctr Neurosci, Anat & Histol, Adelaide, SA 5001, Australia. (Motion Vision)ORCID iD: 0000-0002-6020-6348
2016 (English)In: Journal of Comparative Physiology A. Sensory, neural, and behavioral physiology, ISSN 0340-7594, E-ISSN 1432-1351, Vol. 202, no 1, 45-54 p.Article in journal (Refereed) Published
Abstract [en]

Hoverflies are found across the globe, with approximately 6000 species described worldwide. Many hoverflies are being used in agriculture and some are emerging as model species for laboratory experiments. As such it is valuable to know more about their activity. Like many other dipteran flies, Eristalis hoverflies have been suggested to be strongly diurnal, but this is based on qualitative visualization by human observers. To quantify how hoverfly activity depends on internal and external factors, we here utilize a locomotor activity monitoring system. We show that Eristalis hoverflies are active during the entire light period when exposed to a 12 h light:12 h dark cycle, with a lower activity if exposed to light during the night. We show that the hoverflies' locomotor activity is stable over their lifetime and that it does not depend on the diet provided. Surprisingly, we find no difference in activity between males and females, but the activity is significantly affected by the sex of an accompanying conspecific. Finally, we show that female hoverflies are more resilient to starvation than males. In summary, Eristalis hoverflies are resilient to a range of internal and external factors, supporting their use in long-term laboratory experiments.

Place, publisher, year, edition, pages
2016. Vol. 202, no 1, 45-54 p.
Keyword [en]
Diet; Age; Sexual dimorphism; Circadian rhythm; Starvation
National Category
Behavioral Sciences Biology
Identifiers
URN: urn:nbn:se:uu:diva-268566DOI: 10.1007/s00359-015-1051-2ISI: 000367612300005PubMedID: 26610330OAI: oai:DiVA.org:uu-268566DiVA: diva2:877802
Funder
Swedish Research Council, 2012-4740Stiftelsen Olle Engkvist Byggmästare
Available from: 2015-12-08 Created: 2015-12-08 Last updated: 2017-12-01Bibliographically approved

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Thyselius, MalinNordström, Karin

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