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

Predation and foraging costs of carrying eggsacs of different mass in the wolf spider Pardosa milvina

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

Female Pardosa milvina wolf spiders carry large eggsacs. We quantified the effects of carrying eggsacs on foraging success and susceptibility to predation. In addition to monitoring individuals carrying natural eggsacs, we induced females to carry artificial eggsacs of varying mass. We determined the propensity of females to attach eggsacs or plastic beads of various sizes. We then quantified prey capture success and the avoidance of the predatory wolf spider, Hogna helluo, for Pardosa with and without eggsacs or plastic beads attached. Females attached their own eggsacs significantly more than plastic beads of equal mass and attached artificial eggsacs 10 times larger than natural eggsacs significantly less often than smaller plastic beads (ones equal to or 2.7 times the size of natural eggsacs). Females carrying real or artificial eggsacs of any mass captured fewer prey, but prey capture success did not vary among females with different-sized eggsacs. Except females of the 10 × eggsac treatment, individuals carrying an eggsac suffered significantly greater predation compared to females without eggsacs. Eggsac transport carries significant predation and foraging costs, but we found little evidence that carrying heavier eggsacs incur incrementally greater increases in predation risk or decreased foraging efficiency than carrying lighter eggsacs.

Affiliations: 1: Biology Department, Susquehanna University, Selinsgrove, PA 17870, USA; 2: Department of Zoology, Miami University, Hamilton, OH 45011, USA

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