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Female damselflies prefer 'hot' males

Date:
May 23, 2010
Source:
University of Sheffield
Summary:
Researchers have found that female damselflies prefer hot males. Hot male damselflies, who have warmed their bodies in the sun, are more attractive to their female counterparts.

Hot male damselflies, who have warmed their bodies in the sun, are more attractive to their female counterparts, a new study has found.
Credit: Copyright Michael Siva-Jothy

Researchers from the University of Sheffield have found that female damselflies prefer hot males.

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The study, which was published in the journal Behavioral Ecology and Sociobiology, found that hot male damselflies, who have warmed their bodies in the sun, are more attractive to their female counterparts.

Males of this species show elaborate courtship displays that involve high frequency wing-beats directed toward a potential female mate. Previous studies suggest that a female´s choice of mate is based on aspects of a male´s courtship display, although it is unclear whether the courtship display varies between males or is influenced by environmental factors.

The research used two new technologies -- thermographic imaging and high-speed digital videography -- to assess the courtship rituals of the damselflies.

The findings revealed that males that had basked in the sun had warmer bodies and were more attractive to the females: they were therefore more likely to copulate than colder males. The study also discovered that females benefit from mating with warmer males, as they have access to the warmest territories, which provides the perfect location for the females to lay their eggs.

Professor Michael Siva-Jothy, one of the authors of the study from the University of Sheffield´s Department of Animal and Plant Sciences, said: "This research shows that female mating preference can change over a very short period: a male can become attractive when his territory is in the sunshine but become a wimp when his perch is in the shade."


Story Source:

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


Journal Reference:

  1. Yoshitaka Tsubaki, Yuka Samejima, Michael T. Siva-Jothy. Damselfly females prefer hot males: higher courtship success in males in sunspots. Behavioral Ecology and Sociobiology, 2010; DOI: 10.1007/s00265-010-0968-2

Cite This Page:

University of Sheffield. "Female damselflies prefer 'hot' males." ScienceDaily. ScienceDaily, 23 May 2010. <www.sciencedaily.com/releases/2010/05/100520092948.htm>.
University of Sheffield. (2010, May 23). Female damselflies prefer 'hot' males. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2010/05/100520092948.htm
University of Sheffield. "Female damselflies prefer 'hot' males." ScienceDaily. www.sciencedaily.com/releases/2010/05/100520092948.htm (accessed January 25, 2015).

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