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

Differences in Memory Capabilities in Invasive and Native Crayfish

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.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Cover image Placeholder

Abstract The memory capabilities of individuals of four species of crayfish (two invasive species and two native species) were tested in the laboratory. Individuals of the invasive Orconectes rusticus and the native O. virilis were tested in Michigan, and the invasive Procambarus clarkii and the native Austropatmobius pallipes were tested in Italy. Following pairing of conspecific alarm odour and a novel odour (goldfish odour), individuals were tested one day, one week, and either three weeks later (Italy) or two and four weeks later (Michigan) for inhibition of feeding responses by goldfish odour. In all four species, exposure of animals for just two hours was sufficient to establish an association between the novel odour and elevated predation risk. In both species pairs, individuals of the invasive species showed evidence of retention of the learned association longer than did individuals of the native species. The results are consistent with the general hypothesis that invasive species have a greater capacity for behavioural plasticity.

Affiliations: 1: a (correspondence) Department of Biology, University of Michigan, Ann Arbor, Michigan 48109, U.S.A. ( ; 2: b Dipartimento di Biologia Animale e Genetica ‘Leo Pardi’, Universitá di Firenze, Via Romana 17, 50125, Firenze, Italy


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation