A field observation on the feeding behavior of Crotalus viridis lutosus.
Predatory strike behavior of the rattlesnake Crotalus viridis oreganus.
Overwinter thermal ecology of Crotalus viridis
in the northcentral plains of New Mexico.
2007) and western rattlesnakes, Crotalus viridis
oreganos (Diller and Wallace, 2002).
prairie rattlesnakes, Crotalus viridis viridis) that feed on rodent prey typically release prey immediately following a successful predatory strike, allowing the rodent to flee from the site of envenomation (Estep, Poole, Radcliffe, O'Connell, & Chiszar, 1981; Gans, 1966; Kardong, 1986; O'Connnell, Greenlee, Bacon, & Chiszar, 1982; Radcliffe, Chiszar, & O'Connell, 1980).
Subjects were 10 rattlesnakes (4 Crotalus oreganus oreganus, 1 Crotalus oreganus lutosus, and 5 Crotalus viridis viridis).
Klauber (1949) described Crotalus viridis caliginis from Isla Sur of Islas de Los Coronados.
insulanus (Grismer 1994a) Crotalus viridis caliginis C.
This is in contrast to the western rattlesnake, Crotalus viridis, the western diamondback rattlesnake, Crotalus atrox, the Mojave rattlesnake, Crotalus scutulatus and the tiger rattlesnake, Crotalus tigris in which the major period of spermiogenesis occurs in summer-autnumn (Aldridge 1979a, Jacob et al.
However, Crotalus atrox females are believed to bear litters each year in Oklahoma (Fitch and Pisani 1993) as do southern populations of the western rattlesnakes, Crotalus viridis (c.
molossus appeared similar to that of Crotalus viridis and Crotalus tigris in which spermiogenesis began in late spring and continued into autumn (Aldridge 1979a, Goldberg 1999).
Biennial reproductive cycles have been reported for other North American rattlesnakes: Rahn (1942) for Crotalus viridis, Tinkle (1962) for Crotalus atrox and Goldberg (1999) for Crotalus tigris.
Mori & Sugihara 1988; 1989), Crotalus viridis viridis (cf.
Biochemical and physiological studies on a kallikrein-like enzyme from the venom of Crotalus viridis viridis (Prairie rattlesnake).