Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

The Detoxification of Ant (Pogonomyrmex) Venom by a Blood Factor in Horned Lizards (Phrynosoma)

Patricia J. Schmidt, Wade C. Sherbrooke and Justin O. Schmidt
Copeia
Vol. 1989, No. 3 (Aug. 8, 1989), pp. 603-607
DOI: 10.2307/1445486
Stable URL: http://www.jstor.org/stable/1445486
Page Count: 5
  • Read Online (Free)
  • Download ($12.00)
  • Subscribe ($19.50)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
The Detoxification of Ant (Pogonomyrmex) Venom by a Blood Factor in Horned Lizards (Phrynosoma)
Preview not available

Abstract

Horned lizards (Phrynosoma) are major predators of harvester ants (Pogonomyrmex). The lethal dose ( LD50) of Pogonomyrmex maricopa venom to mice, to Sceloporus jarrovii and to Phrynosoma cornutum is 0.119, 28 and 162 μg venom/g, respectively. Mice injected with 2.5 times an LD50 dose (to mice) of P. maricopa venom plus either 0.81 or 1.71 μl of Ph. cornutum plasma/g mouse survived without symptoms of envenomation, whereas mice injected with either S. jarrovii (0.34, 0.71, 1.51 or 3.14 μl/g) or Lampropeltis getulus (0.83 or 1.67 μl/g) plasma plus venom all died. Horned lizards possess a factor in their plasma that makes them resistant to the venom of P. maricopa.

Page Thumbnails

  • Thumbnail: Page 
[603]
    [603]
  • Thumbnail: Page 
604
    604
  • Thumbnail: Page 
605
    605
  • Thumbnail: Page 
606
    606
  • Thumbnail: Page 
607
    607