|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
Journal of Experimental Biology, Vol 202, Issue 9 1127-1137, Copyright © 1999 by Company of Biologists
JOURNAL ARTICLES |
A Herrel and FD Vree
Department of Biology, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Antwerp, Belgium. aherrel@uia.ua.ac.be.
The kinematics of intraoral transport and swallowing in lizards of the species Uromastix acanthinurus (Chamaeleonidae, Leiolepidinae) were investigated using cineradiography (50 frames s-1). Additional recordings were also made using high-speed (500 frames s-1) and conventional video systems (25 frames s-1). Small metal markers were inserted into different parts of the upper and lower jaw and the tongue. Cineradiographic images were digitised, and displacements of the body, head, upper and lower jaw and the tongue were quantified. Twenty additional variables depicting displacements and the timing of events were calculated. Multivariate analyses of variance indicated significant differences between feeding stages. Remarkably, only very few food-type-dependent differences were observed during intraoral transport, and no such differences could be demonstrated during swallowing. Using previously published data for the closely related insectivorous lizard Plocederma stellio, the effect of dietary specialisation in U. acanthinurus on the kinematic variables while eating locusts was examined. Species differed in a number of gape- and tongue-related variables. These differences may be related to differences in tongue structure between the species. Clearly, U. acanthinurus possesses a specialised gut and dental structure that allows them efficiently to cut pieces from whole leaves. However, a decrease in modulatory capacity seems to be a consequence of dietary specialisation in Uromastix acanthinurus.
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati 
Twitter What's this?
This article has been cited by other articles:
|
|
 |
|
  C. F. Ross, A. L. Baden, J. Georgi, A. Herrel, K. A. Metzger, D. A. Reed, V. Schaerlaeken, and M. S. Wolff Chewing variation in lepidosaurs and primates J. Exp. Biol., February 15, 2010; 213(4): 572 - 584. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. A. Metzger Quantitative analysis of the effect of prey properties on feeding kinematics in two species of lizards J. Exp. Biol., November 15, 2009; 212(22): 3751 - 3761. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Moazen, N. Curtis, P. O'Higgins, S. E. Evans, and M. J. Fagan Biomechanical assessment of evolutionary changes in the lepidosaurian skull PNAS, May 19, 2009; 106(20): 8273 - 8277. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. Schaerlaeken, A. Herrel, and J. J. Meyers Modulation, individual variation and the role of lingual sensory afferents in the control of prey transport in the lizard Pogona vitticeps J. Exp. Biol., July 1, 2008; 211(13): 2071 - 2078. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. Clark and A. P. Summers Morphology and kinematics of feeding in hagfish: possible functional advantages of jaws J. Exp. Biol., November 15, 2007; 210(22): 3897 - 3909. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. Herrel, V. Schaerlaeken, J. J. Meyers, K. A. Metzger, and C. F. Ross The evolution of cranial design and performance in squamates: Consequences of skull-bone reduction on feeding behavior Integr. Comp. Biol., July 1, 2007; 47(1): 107 - 117. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. F. Ross, A. Eckhardt, A. Herrel, W. L. Hylander, K. A. Metzger, V. Schaerlaeken, R. L. Washington, and S. H. Williams Modulation of intra-oral processing in mammals and lepidosaurs Integr. Comp. Biol., July 1, 2007; 47(1): 118 - 136. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. J. Meyers and A. Herrel Prey capture kinematics of ant-eating lizards J. Exp. Biol., January 1, 2005; 208(1): 113 - 127. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Herrel, J. J. Meyers, K. C. Nishikawa, and F. D. Vree The Evolution of Feeding Motor Patterns in Lizards: Modulatory Complexity and Possible Constraints Integr. Comp. Biol., December 1, 2001; 41(6): 1311 - 1320. [Abstract] [Full Text] [PDF]
|
|
