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2 - Sleep in insects

Published online by Cambridge University Press:  10 March 2010

By
Kristyna M. Hartse
Edited by
Patrick McNamara ,
Robert A. Barton  and
Charles L. Nunn
Patrick McNamara
Affiliation:
Boston University
Robert A. Barton
Affiliation:
University of Durham
Charles L. Nunn
Affiliation:
Max Planck Institute for Evolutionary Anthropology
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Summary

Fond as the butterflies are of the light and sun, they dearly love their beds. Like most fashionable people who do nothing, they stay there very late. But their unwillingness to get up in the morning is equalled by their desire to leave the world and its pleasures early and be asleep in good time. They are the first of all our creatures to seek repose.

The Naturalist on the Thames, C. J. Cornish, 1902, p. 44

From these charming observations of insect quiescence made more than a century ago to current molecular and genetic studies in the fruit fly, the study of insect sleep during the last decade has evolved into a sophisticated field of inquiry for dissecting the potential cellular mechanisms controlling sleep in living organisms. The fundamental question of why we sleep continues to be unanswered, but it is likely that sleep in living organisms evolved from ancient origins (Allada & Siegel, 2008; Siegel, 2005). By examining insects, which have a long phylogenetic history, clues to the function and purpose of sleep may be discovered. Sleep in mammalian species such as humans, cats, and rodents has been well studied (Zeplin, Siegel, & Tobler, 2005). In contrast, there are relatively few systematic investigations of nonmammalian vertebrate sleep, and the literature is even sparser for invertebrate species. Insect sleep, with rare notable exceptions, is almost completely unstudied.

Type
Chapter
Information
Evolution of Sleep
Phylogenetic and Functional Perspectives
 , pp. 34 - 56
Publisher: Cambridge University Press
Print publication year: 2009

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