Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for subject:(Electrolocation Physiology ). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


University of Texas – Austin

1. Triefenbach, Frank Alexander. Communication in the weakly electric brown ghost knifefish, Apteronotus leptorhynchus.

Degree: Biological Sciences, School of, 2005, University of Texas – Austin

Maintaining a stable social organization necessitates that animals recognize their own dominance status relative to that of other conspecifics. The weakly electric brown ghost knifefish emits a sexually dimorphic sinusoidal electric organ discharge (EOD) for electrolocation. High-quality (larger, dominant) males discharge at the highest and females at the lowest EOD frequencies (EODFs). Each individual is most sensitive to its own EODF, which can be modulated for communication. In order to examine how sensitivity and quality influence an individual’s response to mimics of EODs, I recorded electrical signals emitted by ten males and seven females in response to playbacks of sine waves mimicking a wide range of con- and extraspecific EODFs. While all individuals emit small chirps (LoCs) mostly to stimuli around their own EODF, they are more likely to emit rises (gradual non-chirp signals) to frequencies to which they are less sensitive; males similarly emit larger chirps (HiCs) to frequencies more distant from their own, especially to female mimics. Larger males are less likely to emit rises, stimuli in the female range elicit more rises from both sexes, and females emit rises to male EOD mimics. Although low male EOD mimics elicit more LoCs from all, and especially from smaller males, larger males chirp more at progressively higher male EOD mimics than do smaller males. I conclude that a) although much of the variation in an individual’s response is attributable to its sensitivity, individuals recognize sexual and size cues and have some internal representation of their own quality, and b) whereas LoCs appear to function in intrasexual aggression, HiCs and rises could be used in both courtship and submissive signalling. Advisors/Committee Members: Zakon, Harold (advisor).

Subjects/Keywords: Brown ghost knifefish; Electrolocation (Physiology); Courtship in animals; Animal communication

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Triefenbach, F. A. (2005). Communication in the weakly electric brown ghost knifefish, Apteronotus leptorhynchus. (Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/2344

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Triefenbach, Frank Alexander. “Communication in the weakly electric brown ghost knifefish, Apteronotus leptorhynchus.” 2005. Thesis, University of Texas – Austin. Accessed May 21, 2018. http://hdl.handle.net/2152/2344.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Triefenbach, Frank Alexander. “Communication in the weakly electric brown ghost knifefish, Apteronotus leptorhynchus.” 2005. Web. 21 May 2018.

Vancouver:

Triefenbach FA. Communication in the weakly electric brown ghost knifefish, Apteronotus leptorhynchus. [Internet] [Thesis]. University of Texas – Austin; 2005. [cited 2018 May 21]. Available from: http://hdl.handle.net/2152/2344.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Triefenbach FA. Communication in the weakly electric brown ghost knifefish, Apteronotus leptorhynchus. [Thesis]. University of Texas – Austin; 2005. Available from: http://hdl.handle.net/2152/2344

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.