Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Homosexuality in the Ten-Spined Stickleback (Pygosteus Pungitius L.) 1)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Behaviour

The normal reproductive behaviour of the Ten-Spined Stickleback (Pygosteus pungitius L.) is described briefly, and the conditions that are found to produce abnormal courtship behaviour are reported. The males of this species build nests in water-weeds, and the territory around each nest is defended by its owner. At a particular population density only some of a group of males are able to set up territories and build nests, and these individuals become dominant over the nestless males. If there is a scarcity of females, the dominant males behave towards the nestless males as if the latter were females. If there is a normal courtship in progress between a dominant male and a female, then the dominated males are often seen to compete with the female of the pair, and to exhibit the complete female courtship pattern. Such fish have been called "pseudofemales". These observations reveal that the nervous mechanisms of the sexual behaviour pattern of the other sex are present, although they are not normally functional. Pseudofemale behaviour is analysed further with model experiments. Its function appears to be the relief of frustration in this case, and it is noted that here where a whole pattern is being thwarted, the result is a displacement pattern. The speed of the inversion of the sexual role seems to exclude any possibility of hormonal change being responsible. It is probable that the phemomenon has ecological significance, as an outcome of its occurrence is often the destruction of eggs. Homosexuality in other species is briefly reviewed. Terminology is discussed, and a classification of types of homosexual behaviour is given.

Affiliations: 1: Department of Zoology and Comparative Anatomy, University of Oxford


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Behaviour — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation