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Biology of the Rubber Boa (Charina bottae), with Emphasis on C. b. umbratica. Part II: Diet, Antagonists, and Predators

Richard F. Hoyer and Glenn R. Stewart
Journal of Herpetology
Vol. 34, No. 3 (Sep., 2000), pp. 354-360
DOI: 10.2307/1565356
Stable URL: http://www.jstor.org/stable/1565356
Page Count: 7
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Biology of the Rubber Boa (Charina bottae), with Emphasis on C. b. umbratica. Part II: Diet, Antagonists, and Predators
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Abstract

A five year field and laboratory study of the southern rubber boa (SRB) in the San Bernardino Mountains of southern California provided data on the diet, antagonists, and predators of this state listed subspecies. In laboratory feeding trials, both adult and juvenile SRBs readily consumed lizard eggs, and adults also took nestling rodents and insectivores. Field and laboratory observations of both Oregon boas and SRBs indicated that most injuries to the tail tips of SRBs are from female voles, moles, and other small mammals defending their young against boa predation. These observations also suggested that the principal reptilian predators of SRBs are Diadophis punctatus and Lampropeltis getula. In these respects, the SRB was similar to most other rubber boas and differed primarily in its tendency to eat lizard eggs rather than lizards.

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