The Effects of Leg Autotomy on Running Speed and Foraging Ability in Two Species of Wolf Spider, (Lycosidae)

C. CHRISTOPHER AMAYA; PAUL D. KLAWINSKI; DANIEL R. FORMANOWICZ, JR.

doi:10.1674/0003-0031(2001)145[0201:TEOLAO]2.0.CO;2

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C. CHRISTOPHER AMAYA,^1,* PAUL D. KLAWINSKI,^1,** DANIEL R. FORMANOWICZ, JR.¹

¹Department of Biology, University of Texas at Arlington, Arlington 76019.

^*Corresponding author: Telephone: (817) 272-2871; FAX: (817) 272-2855; camaya@uta.edu
^**Present address: Dept. of Biology, William Jewell College, Liberty, Missouri 64068

Abstract

The effects of leg autotomy on running speed and foraging ability were examined in two species of wolf spider (Schizocosa ocreata and Varacosa terricola). Both species run slower following leg autotomy. However, foraging ability was not affected in either species. Since spiders with one leg autotomized are slower than spiders with all legs intact, they may be more susceptible to predation.

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C. CHRISTOPHER AMAYA, PAUL D. KLAWINSKI, and DANIEL R. FORMANOWICZ, JR. "The Effects of Leg Autotomy on Running Speed and Foraging Ability in Two Species of Wolf Spider, (Lycosidae)," The American Midland Naturalist 145(1), 201-205, (1 January 2001). https://doi.org/10.1674/0003-0031(2001)145[0201:TEOLAO]2.0.CO;2

Received: 13 September 1999; Accepted: 1 August 2000; Published: 1 January 2001

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