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

Agonistic Interactions in Male Form Ii Cambarus Robustus Girard, 1852 Crayfish (Decapoda, Cambaridae) and a Comparison Between Male Form i aNd Form Ii Intra-Form Contests

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 Crustaceana

An analysis of intra-form agonistic contests between size-matched male Form II (non-breeding form) Cambarus robustus Girard, 1852 crayfish revealed that the winners and losers of these contests differed in the numbers and types of initiation behaviours used. The (eventual) winners, which initiated significantly more fights overall, used mostly the aggressive Claws Raised and Lunge initiation behaviours, whereas the (eventual) losers, which also initiated most of the very first fights of the overall agonistic contests, used mostly the tentative Ambivalent Contact behaviour. Thus, initiation behaviours can be used as good predictors of status for males of this species. The Lunge behaviour is a strong indicator of the eventual dominant status of male crayfish, during agonistic contests. There was a significant, negative correlation between the relative frequency of the Lunge initiation behaviours used by the winners and the total time spent fighting. A comparison between the male Form II and Form I (breeding form) intra-form contests, in this species, and an analysis of the differences and similarities between these two types of contests, indicated that male form is an important variable in the agonistic interactions of cambarid crayfish.

Affiliations: 1: Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario, Canada M5S 3G5


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:
    Crustaceana — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation