We announce with deep regret the death of Norbert Elsner, initiator and inspirer of the present study, on 23 June 2011.
A narrow hybrid zone between the grasshoppers Stenobothrus clavatus and Stenobothrus rubicundus: courtship song analysis
Article first published online: 19 JUL 2012
© 2012 The Linnean Society of London
Biological Journal of the Linnean Society
Volume 107, Issue 2, pages 383–397, October 2012
How to Cite
Vedenina, V., Sradnick, J., Klöpfel, A. and Elsner, N. (2012), A narrow hybrid zone between the grasshoppers Stenobothrus clavatus and Stenobothrus rubicundus: courtship song analysis. Biological Journal of the Linnean Society, 107: 383–397. doi: 10.1111/j.1095-8312.2012.01935.x
Current address: Division of Nephrology, Department of Internal Medicine III, University of Technology Dresden, Germany.
- Issue published online: 14 SEP 2012
- Article first published online: 19 JUL 2012
- Manuscript Revised: 28 APR 2012
- Manuscript Accepted: 28 APR 2012
- Manuscript Received: 9 MAR 2012
- Studienstiftung des deutschen Volkes and Alexander-von-Humboldt Stiftung. Grant Number: 3.3-RUS/1054747 STP
- courtship behaviour ;
- grasshopper ;
- hybrid zone ;
- sexual selection ;
- visual display
The closely related grasshopper species Stenobothrus rubicundus and Stenobothrus clavatus are known to hybridize in a very narrow contact zone on Mt. Tomaros in northern Greece. These species produce very different and complex courtship songs accompanied with visual display. We analyzed the courtship songs and underlying stridulatory movements of the hind legs in natural hybrids from Mount Tomaros. The two species were also hybridized in the laboratory and their songs were compared with the songs of the natural hybrids. Some hybrid songs were shown to have intermediate features between parental songs, whereas other hybrid songs comprised completely new elements. The clavatus-like song elements were found to dominate in hybrid songs. These song features may influence the mating success of hybrid males in the contact zone. A comparison of hybrid songs with the song pattern of the north European S. rubicundus populations allowed us to suggest a scenario of S. rubicundus and S. clavatus origin. © 2012 The Linnean Society of London, Biological Journal of the Linnean Society, 2012, ••, ••–••.