Cookies Policy
X
Cookie 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

Cues Associated With Patch-Choice Decisions By Foraging Crab Spiders Misumena Vatia

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

Buy this article

Price:
$30.00+ Tax (if applicable)
Add to Favorites

image of Behaviour

I tested the roles of insect prey presence, abundance, and distance in the selection of hunting sites by crab spiders Misumena vatia (Thomisidae) on milkweed inflorescences. Since the inflorescences on a single plant differ in numbers of prey attracted, one can also assess the effect of relative prey abundance on patch choice as overall prey abundance in an area changes. About three-fourths of the spiders chose the inflorescence attracting the most insects on a plant at densities from half to twice the normal prey, and in tests with additional prey presented at close range. Thus they appear to respond to relative prey densities in patch choice, and their accuracy of choice remains constant over a wide range of prey abundance. However, spiders without prey, and ones that had just fed, selected sites randomly. Individuals from all the other experiments left inflorescences, especially high-quality ones, more often as overall prey density increased. This result closely fits a risk-sensitivity model that predicts mobility in choice of hunting site if average prey availability exceeds that required to produce a clutch of eggs.

Affiliations: 1: Graduate Program in Ecology and Evolutionary Biology, Division of Biology and Medicine, Brown University, Providence, RI 02912 U.S.A.

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Create email alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Name:*
    Email:*
    Your details
    Name:*
    Email:*
    Department:*
    Why are you recommending this title?
    Select reason:
     
     
     
     
    Other:
     
    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