Skip Navigation

American Zoologist 1974 14(4):1119-1125; doi:10.1093/icb/14.4.1119
© 1974 by The Society for Integrative and Comparative Biology
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Request Permissions
Google Scholar
Right arrow Articles by BLAIR, W. F.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Character Displacement in Frogs

W. FRANK BLAIR
Department of Zoology, University of Texas at Austin Austin, Austin, Texas 78712

Additional evidence has accumulated over the past 20 years regarding the significance of the anuran mating call and regarding reinforcement of this premating isolating mechanism when hybridization occurs in zones of symnatry. No two sympatric species have the same call. That the mating call is a home-specific mate attractant has been demonstrated in five major anuran families. Discrimination against hybrid calls versus homospecific calls has been demonstrated in Bufo and Hyla. Principal examples of presumed reinforcement continue to be in Gastrophryne, Acris, and the Australian Hyla ewingi group. Reinforcement may be the basis for striking differentiation of some populations of Scaphiopus bombifrons. Sympatric species pairs of anurans show greater differentiation in call than do allopatric pairs in the same group. One hybridizing situation in Bufo appears to have changed over 30 years to discrete populations without intermediate calls. Effective call differences can evolve without sympatry, and there are sympatric situations in which no reinforcement is evident.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.