Nebraska Academy of Sciences

 

Date of this Version

1999

Document Type

Article

Comments

1999. Transactions of the Nebraska Academy of Sciences, 25: 73-76. Copyright © 1999 Smith.

Abstract

I experimentally investigated the habitat use preferences of bullfrog (Rana catesbeiana) tadpoles of different ages (early, first-year vs. late, second-year, premetamorphic) in the laboratory. Early tadpoles showed a preference for non-vegetated areas, whereas late tadpoles showed no preference. Early tadpoles were seen more often over small, gravel substrate as opposed to large rocks, whereas late tadpoles showed no preference. Early tadpoles preferred medium depths, whereas later tadpoles preferred deeper water. Thus, it appears there may be habitat preferences in bullfrog tadpoles, and that these preferences may change over time.

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