| california ground squirrel (spermophilus beecheyi) defenses against rattlesnake venom digestive and hemostatic toxins. | previous studies have shown that some mammals are able to neutralize venom from snake predators. california ground squirrels (spermophilus beecheyi) show variation among populations in their ability to bind venom and minimize damage from northern pacific rattlesnakes (crotalus oreganus), but the venom toxins targeted by resistance have not been investigated. four california ground squirrel populations, selected for differences in local density or type of rattlesnake predators, were assayed for t ... | 2005 | 16273425 |
| venom variation in hemostasis of the southern pacific rattlesnake (crotalus oreganus helleri): isolation of hellerase. | envenomations by the southern pacific rattlesnake (crotalus oreganus helleri) are the most common snakebite accidents in southern california. intraspecies venom variation may lead to unresponsiveness to antivenom therapy. even in a known species, venom toxins are recognized as diverse in conformity with interpopulational, seasonal, ontogenetic and individual factors. five venoms of individual c. oreganus helleri located in riverside and san bernardino counties of southern california were studied ... | 2009 | 18804187 |