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

Leaf Size Recognition and Evaluation By Some Attelabid Weevils (3) Deporaus Sp

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.
MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Buy this article

$30.00+ Tax (if applicable)
Add to Favorites

image of Behaviour

Recognition of leaves by females of the leaf-rolling weevil Deporaus sp. was studied. Female weevils perform a sequence of walking along the main vein via the leaf apex (called measuring behaviour) prior to cutting. Observations of the course of walking on an asymmetric model leaf suggest that the main vein is recognized with reference to the protrusion of the leaf apex etc. A quantitative analysis of the location of cutting points indicates the following. The female weevil measures a certain length by walking along the main vein; in this way she evaluates leaf size and decides where to start cutting. An experiment utilizing a sliding leaf model revealed that it is the activity of walking itself, and not vision, that has a mensurative function. Females relate the number of eggs to be laid to the size of the apical part of the leaf, by a criterion other than leaf length (e.g. width or area). A scheme for the cutting point decision is proposed. A different set of mechanisms for measuring is used in small leaves and large leaves. The mechanism for small leaves may involve a memory of distance. The framework of leaf size recognition and the evolution of measuring behaviour are discussed, using a comparison of three species, Chonostropheus chujoi, Apoderus balteatus and Deporaus sp. (SAKURAI, 1988a, b and present paper).


Article metrics loading...


Affiliations: 1: Department of Zoology, Faculty of Science, Kyoto University Kitashirakawa-oiwake, Sakyo, Kyoto, 606 Japan


Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to email alerts
  • 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

    Thank you

    Your recommendation has been sent to your librarian.

  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation