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Bumble Bees Can Estimate Time Intervals

Date:
August 25, 2006
Source:
Cell Press
Summary:
In a finding that broadens our understanding of time perception in the animal kingdom, researchers have discovered that an insect pollinator, the bumble bee, can estimate the duration of time intervals. Although many insects show daily and annual rhythms of behavior, the more sophisticated ability to estimate the duration of shorter time intervals had previously been known only in humans and other vertebrates.

In a finding that broadens our understanding of time perception in the animal kingdom, researchers have discovered that an insect pollinator, the bumble bee, can estimate the duration of time intervals. Although many insects show daily and annual rhythms of behavior, the more sophisticated ability to estimate the duration of shorter time intervals had previously been known only in humans and other vertebrates.

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The findings are reported by Michael Boisvert and David Sherry of the University of Western Ontario and appear in the August 22nd issue of the journal Current Biology, published by Cell Press.

Bees and other insects make a variety of decisions that appear to require the ability to estimate elapsed durations. Insect pollinators feed on floral nectar that depletes and renews with the passage of time, and insect communication and navigation may also require the ability to estimate the duration of time intervals.

In the new work, the researchers investigated bumble bees' ability to time the interval between successive nectar rewards. Using a specially designed chamber in which bumble bees extended their proboscis to obtain sucrose rewards, the researchers observed that bees adjusted the timing of proboscis extensions so that most were made near the end of the programmed interval between rewards. When nectar was delivered after either of two different intervals, bees could often time both intervals simultaneously. This research shows that the biological foundations of time perception may be found in animals with relatively simple neural systems.

The researchers include Michael J. Boisvert and David F. Sherry of the University of Western Ontario in London, Ontario, Canada. This research is part of a doctoral dissertation by M.J.B. and was supported by a grant from the Natural Science and Engineering Research Council of Canada to D.F.S.

Boisvert et al.: "Interval Timing by an Invertebrate, the Bumble Bee Bombus impatiens." Publishing in Current Biology 16, 1636--1640, August 22, 2006 DOI 10.1016/j.cub.2006.06.064 www.current-biology.com


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The above story is based on materials provided by Cell Press. Note: Materials may be edited for content and length.


Cite This Page:

Cell Press. "Bumble Bees Can Estimate Time Intervals." ScienceDaily. ScienceDaily, 25 August 2006. <www.sciencedaily.com/releases/2006/08/060825103730.htm>.
Cell Press. (2006, August 25). Bumble Bees Can Estimate Time Intervals. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2006/08/060825103730.htm
Cell Press. "Bumble Bees Can Estimate Time Intervals." ScienceDaily. www.sciencedaily.com/releases/2006/08/060825103730.htm (accessed October 30, 2014).

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