spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

First published online November 1, 2006
Journal of Experimental Biology 209, 4515-4523 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02511
This Article
Right arrow Summary Freely available
Right arrow Full Text
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 Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Vanhooydonck, B.
Right arrow Articles by Irschick, D. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Vanhooydonck, B.
Right arrow Articles by Irschick, D. J.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Out on a limb: the differential effect of substrate diameter on acceleration capacity in Anolis lizards

Bieke Vanhooydonck{dagger},*, Anthony Herrel{dagger} and Duncan J. Irschick{ddagger}

Department of Ecology and Evolutionary Biology, 310 Dinwiddie Hall, Tulane University, New Orleans, LA 70118, USA


Figure 1
View larger version (5K):

[in a new window]
  		Fig. 1. Acceleration profile of an Anolis carolinensis individual running on the narrow dowel. Five acceleration peaks are present. Amplitude of peak 1=24.15 m s-2, amplitude of peak 2=16.53 m s-2, amplitude of peak 3=12.88 m s-2, amplitude of peak 4=3.51 m s-2, and amplitude of peak 5=8.13 m s-2. The part of the run that contains the highest speed over an interval of 0.20 m is indicated (vmax).

 

Figure 2
View larger version (8K):

[in a new window]
  		Fig. 2. Plot of maximal performance of A. sagrei, A. carolinensis and A. valencienni on the broad and narrow dowel. Data are the means per species ± s.e.m. (bars). (A) Maximal acceleration capacity and (B) maximal sprint speed. Symbols: squares, A. sagrei; circles, A. carolinensis; triangles, A. valencienni. Solid symbols, on broad dowel; open symbols, on narrow dowel. Points are offset for each dowel diameter so that standard error bars do not overlap.

 

Figure 3
View larger version (11K):

[in a new window]
  		Fig. 3. Proportion of observations of reaching maximal acceleration capacity at the first peak and at subsequent peaks in A. sagrei, A. carolinensis and A. valencienni on broad and narrow dowel. (A) A. sagrei, (B) A. carolinensis and (C) A. valencienni. Black bars, maximal acceleration at the first peak; grey bars, maximal acceleration at a subsequent peak. The actual number of observations per group is indicated in brackets.

 

Figure 4
View larger version (5K):

[in a new window]
  		Fig. 4. Plot of amplitude of acceleration peaks 1 and 2 for maximal sprint sequences of A. sagrei, A. carolinensis and A. valencienni on the broad and narrow dowel. Data are the means ± standard errors (bars) per species, dowel and peak. Symbols: squares, A. sagrei; circles, A. carolinensis; triangles, A. valencienni. Solid symbols, on broad dowel; open symbols, on narrow dowel. Full lines connect species means on the broad dowel; dashed lines connect species means on the narrow dowel. Points are offset for peak 1 and peak 2 so that standard error bars do not overlap.

 

Figure 5
View larger version (12K):

[in a new window]
  		Fig. 5. Proportion of observations of reaching maximal sprint speed after first and after second acceleration peak in A. sagrei, A. carolinensis and A. valencienni on broad and narrow dowel. (A) A. sagrei, (B) A. carolinensis and (C) A. valencienni. Black bars, maximal acceleration after the first peak; grey bars, maximal acceleration after a subsequent peak. Only those sequences in which maximal sprint speed was attained after the first or second acceleration peak were used in the analyses. The actual number of observations per group is indicated in brackets.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?



© The Company of Biologists Ltd 2006